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Section 43B(h) MSME 45-Day Powerloom Procurement Reconciliation for Textile

A Surat synthetic mill procuring grey fabric from Udyam-registered powerloom weavers must reconcile every supplier invoice against the Section 43B(h) 45-day clock (or 15 days without agreement) — payments beyond the window disallow the deduction in the year of accrual and trigger Section 15 MSMED interest at 3× the RBI bank rate that becomes taxable income to the supplier.

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Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →

Published 6 July 2026
Domain expertise
TDS Reconciliation GST Input Credit Platform Settlements NACH Batch Matching Bank Reconciliation Form 26AS Matching ERP Integrations Enterprise Finance Ops
Knowledge Card
Problem

A Surat synthetic mill or Bhilwara suiting principal buying grey fabric from 40 to 80 Udyam-registered powerloom weavers per quarter must reconcile every supplier invoice against the Section 43B(h) 45-day clock — measured from acceptance of goods, not from invoice date — and flag any invoice paid beyond the window for permanent-year disallowance and Section 16 MSMED compound interest. The mill's payable ageing typically shows a bi-modal distribution: 60 to 70 percent of invoices are paid inside 45 days (fully deductible), and a long tail of 30 to 40 percent slips to day 60 to 90 because of working-capital pressure at quarter-end, disputed short-shipments, or GRN-to-invoice gaps that hold the payment cycle. Manual tracking on a spreadsheet cannot distinguish Udyam-registered micro/small from medium (medium is outside 43B(h)) and cannot compute the 3× bank-rate compound interest with monthly rests for the Section 22 disclosure. Year-end discovery via Form 3CD reporting is the standard failure mode.

How It's Resolved

Build a Udyam MSME supplier register keyed by URN with Micro/Small/Medium classification tier (only Micro and Small trigger 43B(h)), URN verification date (portal check at least once per FY), written-agreement flag (agreement in writing extends the clock to 45 days; absence collapses it to 15 days), and product tier (manufacturer vs trader — CBDT clarification excludes traders). For every supplier invoice, capture GRN date (which anchors the acceptance-of-goods date and starts the clock) and payment date, and compute days elapsed from GRN to payment. Bucket invoices into three states: paid within window (deductible), paid beyond window (deduction disallowed in year of accrual, moves to year of actual payment), and unpaid at year-end (permanent disallowance in current year and Section 16 interest running). Compute the Section 16 compound-interest liability at 3× the prevailing RBI bank rate with monthly rests from day 46 to the earlier of payment date or 31 March. Aggregate the disallowance for the tax computation and the Section 22 audit disclosure.

Configuration

Udyam supplier master with URN, PAN, Micro/Small/Medium tier, manufacturer-vs-trader flag, and Udyam portal last-verified date; written-agreement flag per supplier (default 15-day window if no agreement; 45-day window if agreement); GRN-to-invoice register matching purchase order, GRN, and supplier invoice with acceptance date driven by GRN completion; payment register keyed by supplier and invoice; RBI bank rate feed (current and historical, for computing period interest); Section 43B(h) year-end cutoff at 31 March (or specified year-end); Section 16 MSMED interest computation with monthly compounding; TDS taxonomy — payment code 1023 (Section 8 Sl. 4, principal-supplied material weaver job-work) or code 1024 (weaver-sourced material outright purchase) depending on commercial pattern per supplier.

Output

A month-end Section 43B(h) exposure pack: total accrued value from Udyam-registered Micro and Small suppliers in the period, split by paid-within-window (deductible), paid-beyond-window (deduction moves to year of payment), and unpaid (permanent disallowance risk if not paid by year-end). Supplier-level 45-day clock with days-elapsed-since-GRN for every open invoice, sorted by exposure. Section 16 MSMED interest computation with month-rest accrual at 3× the RBI bank rate, aggregated for the Section 22 audited-statement disclosure. Year-end Form 3CD line for the tax-audit report — 43B(h) disallowance figure and Section 23 MSMED interest inadmissibility figure — ready for the auditor. Payment-window alerts at day 30, day 40, and day 44 give the finance team enough runway to prioritize the invoice for release.

A Surat synthetic-mill controller closes the September book with an accounts-payable ledger showing 74 open supplier invoices from Udyam-registered powerloom weavers in Bhiwandi, Ichalkaranji, and Malegaon aggregating approximately ₹6.4 crore. Fifty-one of those invoices are inside the 45-day window from the goods-receipt-note (GRN) date and will be paid on time. Sixteen are between day 30 and day 44 and need cash-flow prioritization to close within the window. Seven are already past day 45 and have crossed into the Section 43B(h) disallowance zone: the deduction for these ₹2.3-crore-aggregate invoices is disallowed in FY 2026-27 unless paid before 31 March 2027, and Section 16 MSMED compound interest at 3× the RBI bank rate has been accruing on each day beyond day 45. This is Section 43B(h) MSME 45 day powerloom procurement textile reconciliation at production scale, and the discipline of running a Udyam register + supplier-level 45-day clock + monthly payment reconciliation is what keeps the year-end tax computation clean and the Form 3CD auditor’s report free of an unfavourable 43B(h) disallowance line.

Quick reference

AspectDetail
Governing income-tax provisionSection 43B(h), Income-tax Act 1961 (inserted by Finance Act 2023)
Effective fromAssessment year 2024-25 (i.e., FY 2023-24 onward)
Cross-referenceSection 15, MSMED Act 2006 (payment window)
Interest provisionSection 16, MSMED Act 2006 (3× RBI bank rate, monthly compounding)
Payment window (written agreement)45 days from date of acceptance of goods/services
Payment window (no written agreement)15 days from date of acceptance
Applicable toMicro (investment ≤ ₹1 cr, turnover ≤ ₹5 cr) and Small (investment ≤ ₹10 cr, turnover ≤ ₹50 cr) enterprises
Not applicable toMedium enterprises, traders/retailers (CBDT clarification 6 May 2024)
MSME status documentUdyam Registration Number (URN) via udyamregistration.gov.in
Interest deductibility (buyer)Not deductible under Section 23 MSMED read with Section 43B(h) explanation
Interest taxability (supplier)Taxable as business income in the year of accrual, Section 15 read with normal income principles
Section 43B(1) proviso applicabilityDoes NOT apply — 43B(h) is a hard payment-basis provision without return-filing grace
Audit-report disclosureForm 3CD item 22 (Section 23 MSMED interest); items 26 and general 43B disclosure (43B(h) disallowance)
Job-work TDS (weaver, principal-supplied yarn)Section 8 Sl. 4 code 1023 — 1% (Ind/HUF) or 2% (other)
Purchase TDS (weaver-sourced yarn, outright sale)Section 8 Sl. 4 code 1024

The reconciliation in one paragraph

Section 43B(h) of the Income-tax Act 1961 — inserted by the Finance Act 2023 and effective from assessment year 2024-25 — disallows the deduction for any sum payable by a buyer to a micro or small enterprise supplier until the sum is actually paid, if the payment is made beyond the time limit specified under Section 15 of the MSMED Act 2006. Section 15 sets the window at 45 days from the date of acceptance of goods or services where there is a written agreement, and 15 days where there is no written agreement. The proviso to Section 43B(1) that ordinarily permits payment before the return-filing due date under Section 139(1) is expressly not extended to clause (h) — 43B(h) is a hard payment-basis rule without any return-filing grace period. When the buyer’s window lapses, Section 16 MSMED interest at three times the RBI bank rate, compounded monthly, becomes payable to the supplier and is non-deductible for the buyer (Section 23). For a Surat synthetic mill or a Bhilwara suiting principal running large-volume procurement from Udyam-registered powerloom weavers, the reconciliation runs monthly: a Udyam MSME supplier register keyed by URN and classification tier (Micro or Small only — Medium is outside 43B(h)), a supplier-level 45-day clock keyed off the GRN acceptance date, a payment-date register that reconciles vendor payments to invoice-level, and a disallowance flag with the Section 16 interest accrual for the Section 22 MSMED audited-statement disclosure and Form 3CD tax-audit reporting.

What the powerloom procurement pattern looks like in India

A Surat synthetic mill running polyester and viscose blended fabric operates two upstream procurement channels for grey fabric. The first is captive weaving — the mill owns or leases powerlooms and issues yarn from its own spinning unit or from a third-party spinner, and the weaving is done in-house or on the mill’s dedicated shopfloor. This channel does not trigger 43B(h) because there is no MSME supplier — the yarn-to-grey conversion is internal. The second is contract weaving — the mill issues yarn under a Rule 55 delivery challan to independent powerloom weavers in Bhiwandi (Maharashtra), Ichalkaranji (Maharashtra), Malegaon (Maharashtra), Surat (Gujarat), or Erode (Tamil Nadu), and the weavers return grey fabric on a return-inward challan. In this pattern the weaver is charging only for conversion (yarn is principal-owned throughout), and the invoice value is the conversion charge. The third is outright purchase — the mill buys grey fabric on the open market from powerloom weavers who source their own yarn and sell the grey fabric as a purchase transaction. In this pattern the invoice value is the full purchase price and TDS runs on payment code 1024, not 1023.

Illustrative principals running powerloom procurement at scale in this shape include synthetic and blended fabric mills such as Filatex India, Garden Silk Mills (part of the Surat cluster), Siyaram Silk Mills, Donear Industries, and Sutlej Textiles; suiting-focused principals such as Raymond and Banswara Syntex in the Bhilwara-Bhiwadi belt; and vertically integrated principals such as Vardhman Textiles and Arvind Ltd that run both captive and contract weaving in parallel. The regional cluster geography is unforgiving of long payment cycles — a powerloom cluster like Bhiwandi runs 2 lakh-plus looms operated by tens of thousands of small entrepreneurs whose working capital is measured in weeks, not months. Delay in principal-side payment beyond the 45-day window is not a passive compliance exposure; it starves the supplier cluster and triggers a Section 16 interest liability that ends up on the principal’s own audited statements under Section 22 MSMED, which requires disclosure of (i) the principal amount unpaid to MSME suppliers at year-end, (ii) the interest accrued and paid, (iii) the interest paid beyond the appointed day, and (iv) the interest accrued and remaining unpaid at year-end.

Powerloom weavers registering under Udyam are almost all Micro or Small by classification — a typical Bhiwandi weaver operates 8 to 24 looms with plant-and-machinery investment well under the ₹10-crore small-enterprise cap and turnover below the ₹50-crore ceiling. That means the entire contract-weaving supplier base for a Surat synthetic mill typically falls inside the 43B(h) scope, and the mill’s controller cannot rely on a scattered classification — the assumption at implementation must be “Udyam-registered powerloom weaver → Micro or Small → 43B(h) applies,” subject to verification.

The regulatory overlay — Section 43B(h), Section 15 MSMED, Section 16 MSMED, and Form 3CD

Section 43B of the Income-tax Act 1961 codifies the payment-basis rule for certain deductions — tax, duty, cess, employer contribution to provident and other funds, employee bonus, interest on term loans, and (from AY 2024-25 onward) clause (h): any sum payable to a micro or small enterprise beyond the Section 15 MSMED window. The general Section 43B(1) proviso allows the deduction if the sum is paid on or before the due date of the return under Section 139(1) — but this proviso is expressly not extended to clause (h). This is the single most important operational difference the tax practitioner must internalize: for 43B(h), there is no return-filing grace period. If the invoice is not paid within 45 days of acceptance (or 15 days without a written agreement), and it is not paid by 31 March of the accrual year, the deduction disallows in the accrual year and moves permanently to the year of actual payment.

Section 15 of the MSMED Act 2006 sets the payment window. Where the buyer and supplier have agreed on a payment period in writing, that period governs but shall not exceed forty-five days from the day of acceptance or the day of deemed acceptance. Deemed acceptance is defined in Section 2(b) MSMED as the day of actual delivery of goods or rendering of services, absent any objection recorded in writing by the buyer within 15 days from delivery. In practice, the acceptance date used for the 45-day clock is the GRN (goods-receipt-note) completion date at the buyer’s factory, since the GRN is the buyer’s documented acknowledgement that the goods were received and inspected. Absent a written agreement, Section 15 defaults the window to 15 days from acceptance — a materially tighter clock that most contract-weaving relationships do not survive without documented agreements.

Section 16 MSMED imposes compound interest at three times the RBI bank rate, compounded monthly, on any amount that remains unpaid past the Section 15 window. The interest liability arises automatically from the passage of time — no demand from the supplier is required, and the buyer’s ignorance of the applicable window does not defer the accrual. Section 23 MSMED read with the explanation to Section 43B(h) makes the Section 16 interest expressly non-deductible for income-tax purposes. On the supplier side, the interest is chargeable to income tax as business income in the year of accrual under Section 15 of the Income-tax Act read with normal income principles — creating the unusual result that the Udyam-registered powerloom weaver may end up paying tax on interest the mill has not voluntarily remitted. This is the leverage point that Section 22 MSMED’s mandatory disclosure in the buyer’s audited financial statements is designed to expose: the buyer must disclose the interest accrued and remaining unpaid at year-end, which surfaces the exposure to the auditor, the board, and the tax department.

Form 3CD — the tax-audit report under Section 44AB Income-tax Act — captures the 43B(h) exposure in two places. Item 22 requires disclosure of the amount of interest inadmissible under Section 23 MSMED. Item 26 (and the general Section 43B disclosure) requires the amount of any sum referred to in Section 43B not paid on or before the due date and hence not allowable. A well-run reconciliation feeds both lines from a single monthly exposure pack.

TDS on the weaver invoice runs on Section 8 Sl. 4 codes 1023 or 1024 of the Income-tax Act 2025, depending on the commercial pattern. Where the mill supplies the yarn and the weaver returns grey fabric (job-work), TDS applies to the conversion charge only at code 1023 — 1 percent for Individual or HUF weaver, 2 percent for partnership or company weaver. Where the weaver sources its own yarn and sells the grey fabric as a purchase, TDS at code 1024 applies to the full purchase value. The 43B(h) 45-day clock runs on the invoice value (conversion charge for job-work; full value for outright purchase) — separately from any TDS obligation.

A worked example — Filatex-scale Surat synthetic mill Q3 FY 2026-27 procurement

Illustrative — the following figures represent the operating pattern of a representative Surat synthetic mill of Filatex India’s approximate size and procurement mix. Public disclosures do not reveal internal supplier-level payment ageing; cross-verify against your own AP register or Form 3CD working before action.

A Surat synthetic mill procuring polyester grey fabric from 8 Udyam-registered powerloom weavers during Q3 FY 2026-27 (October to December 2026) accrues invoices totalling ₹6.4 crore. The mill has written agreements with 6 of the 8 weavers (45-day window applies), and no written agreement with 2 of the 8 (15-day window applies, though the mill’s operational controller has been treating them at 45 days by convention — the reconciliation catches this).

Supplier-level detail with acceptance dates (GRN completion) and payment dates:

WeaverUdyam tierWritten agreementWindowInvoice ₹ lakhGRN datePayment dateDays elapsedStatus
Weaver A (Bhiwandi)SmallYes45 days925 Oct 202612 Nov 202638Within window — deductible
Weaver B (Bhiwandi)MicroYes45 days768 Oct 202618 Nov 202641Within window — deductible
Weaver C (Ichalkaranji)SmallYes45 days8812 Oct 202624 Nov 202643Within window — deductible
Weaver D (Malegaon)SmallYes45 days6415 Oct 202627 Nov 202643Within window — deductible
Weaver E (Surat)MicroYes45 days9018 Oct 202630 Nov 202643Within window — deductible
Weaver F (Bhiwandi)SmallYes45 days7822 Oct 202623 Dec 202662Beyond window — disallowed until paid
Weaver G (Ichalkaranji)MicroNo15 days7426 Oct 20262 Jan 202768Beyond window — disallowed until paid
Weaver H (Bhilwara)SmallYes45 days7830 Oct 202611 Jan 202773Beyond window — disallowed until paid

Aggregate deductible in FY 2026-27 (paid within window): ₹4.10 crore across weavers A, B, C, D, E. Aggregate disallowed in FY 2026-27 (paid beyond window, but paid before 31 March 2027): ₹2.30 crore across weavers F, G, H — the deduction for these invoices moves to FY 2026-27 for weavers F and G (paid before 31 March 2027) via clause (h) itself does not require in-year payment to be within window; it requires actual payment in the year. Because F and G are paid in FY 2026-27 (December 2026 and January 2027 both fall in FY 2026-27), the deduction is available in FY 2026-27, but only because payment happened in that year. Weaver H’s payment on 11 January 2027 is also in FY 2026-27, so H’s deduction is also available in FY 2026-27. The Section 43B(h) disallowance applies where payment does not happen in the year of accrual at all — in this Q3 illustration, all 8 invoices are paid within FY 2026-27, so the aggregate ₹6.4 crore is deductible in FY 2026-27, and there is no permanent disallowance for Q3.

The Section 16 MSMED interest exposure, however, remains. For weavers F, G, and H, interest at 3× the RBI bank rate (assume 6.5 percent × 3 = 19.5 percent per annum, compounded monthly) accrues from day 46 (for weavers F and H, both with 45-day windows) or day 16 (for weaver G, with no written agreement — 15-day window) until the payment date. Approximate interest liabilities:

WeaverInterest accrual daysPrincipal ₹ lakhApproximate interest ₹
Weaver FDay 46 to Day 62 = 17 days78~69,000
Weaver GDay 16 to Day 68 = 53 days74~2,05,000
Weaver HDay 46 to Day 73 = 28 days78~1,13,000

Aggregate Section 16 interest exposure for Q3: approximately ₹3.87 lakh. This interest is (i) non-deductible for the mill under Section 23 read with 43B(h) explanation, (ii) taxable as business income for the weavers in the year of accrual (whether or not the mill has actually paid it), and (iii) disclosable in the mill’s audited statements under Section 22 MSMED for the year-end 31 March 2027 balance sheet.

Extend the pattern — if any of the three delayed invoices had gone unpaid past 31 March 2027 (say, the mill’s cash position tightened in Q4 and Weaver H’s ₹78 lakh remained unpaid at year-end), Section 43B(h) would disallow the ₹78 lakh deduction in FY 2026-27 entirely. The deduction would move to FY 2027-28, the year of actual payment. The mill’s tax computation for FY 2026-27 would need an add-back of ₹78 lakh, and the Section 16 interest at 19.5 percent compound would continue accruing through the whole non-payment period.

Common reconciliation breakages

Five breakages recur across textile principals running Section 43B(h) reconciliation on powerloom procurement, and each maps to a specific control failure.

  • Udyam classification drift. A supplier registered as Micro in year 1 crosses the ₹5 crore turnover threshold in year 2 and re-classifies as Small — still inside 43B(h). But a Small supplier that grows to Medium (₹50 crore to ₹250 crore turnover) exits 43B(h) scope entirely. The mill that does not re-verify Udyam classification at the start of each FY typically over-includes suppliers that have graduated to Medium, running unnecessary 43B(h) clocks on invoices outside scope. Annual portal re-verification against the URN is mandatory.

  • Invoice-date vs GRN-date confusion. The 45-day clock runs from acceptance of goods (deemed at GRN completion), not from invoice date. A weaver invoice dated 5 October 2026 for goods that were delivered and GRN’d on 22 September 2026 has its clock starting 22 September, not 5 October. Reconciliation systems that anchor the clock to invoice date under-count the exposure and miss the day-45 alert.

  • Written-agreement flag misuse. Suppliers with no written agreement fall to the 15-day default — much tighter than most operational payment cycles support. Mills that assume every supplier has an agreement (because that’s the norm) and set the default flag to “agreement exists” will run 45-day clocks on 15-day suppliers and permanently under-report the 43B(h) exposure. The reconciliation must explicitly capture the agreement flag per supplier, and the default state should be “no agreement” until documented.

  • Job-work vs outright-purchase mis-classification. Where the mill supplies yarn and the weaver returns grey fabric, the invoice value is the conversion charge only and TDS runs on payment code 1023. Where the weaver sources yarn and sells grey fabric, the invoice value is the full purchase price and TDS runs on code 1024. Mis-classifying the pattern leads to wrong 43B(h) invoice value (understated for job-work treated as purchase, or the reverse) and wrong TDS reporting to Form 26AS at the weaver’s PAN.

  • Section 16 interest omission from Section 22 disclosure. Even when a mill catches the 43B(h) exposure in the tax computation and moves the disallowed deduction to the year of payment, it commonly omits the Section 16 interest from the Section 22 MSMED audited-statement disclosure. The audit exposure — Form 3CD item 22 for the auditor and Section 22 disclosure for the board — remains independent of whether the mill has voluntarily remitted the interest to the supplier. The reconciliation must compute the theoretical Section 16 interest liability at 3× RBI bank rate with monthly rests on every delayed invoice, whether or not the mill intends to remit.

How a reconciliation platform handles this

A purpose-built textile Section 43B(h) reconciliation platform ingests the Udyam supplier master (with URN, classification tier, and portal-verification date), the GRN register (which anchors the acceptance date and starts the 45-day clock), the supplier invoice register (with agreement flag and invoice value), and the payment register (with payment date). It runs a per-supplier 45-day or 15-day clock, surfaces exposures at day 30, day 40, and day 44 to give the accounts-payable team enough runway to prioritize invoices for release, and buckets month-end open invoices into deductible, moved-to-year-of-payment, and permanent-disallowance-at-year-end states. It computes Section 16 MSMED compound interest at 3× the current RBI bank rate with monthly rests, aggregates it for the Section 22 audited-statement disclosure, and produces the Form 3CD items 22 and 26 lines pre-populated for the auditor. Match rate improvement of 51 to 88 percent on the GRN-to-invoice-to-payment chain, combined with ISO 27001:2022 posture and DPDP Act 2023 aligned data handling, is what makes the platform an infrastructure investment rather than a year-end fire drill.

The 43B(h) discipline in this article closes the tax-computation loop for the textile cluster’s job-work chain. For the auto-components cluster’s 43B(h) treatment — same statute, different commercial pattern — see Section 43B(h) MSME payment reconciliation and the operational MSME 45-day payment compliance tracker. The upstream textile job-work discipline that this article assumes is covered in Multi-hop job-work reconciliation for textile manufacturing in India, and the movement-document mechanics are in Rule 55 delivery challan for textile job-work and Section 143 deemed-supply 1-year rule for textile job-work. Where the weaver is a job-worker on principal-supplied yarn, the TDS taxonomy is walked through in Dyeing and printing job-work TDS code 1023. Related Wave T2 exposures around powerloom procurement and the cotton chain are in Cotton supply chain reconciliation for textile India, CCI Cotton Corporation of India procurement reconciliation, and the hank-yarn vs cone-yarn duty differential in Hank yarn cone yarn duty differential textile reconciliation. The Rule 89(5) inverted-duty refund overlay is in Rule 89(5) inverted-duty refund for textile India. The commercial pillar for the entire textile cluster is Textile reconciliation software India; the broader authority is reconciliation software India.

The five FAQs below address the operational questions Indian textile controllers ask most often when implementing Section 43B(h) reconciliation on powerloom procurement.

Terra Insight
Terra Insight Editorial Team Reconciliation Infrastructure

Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →

Published 6 July 2026
Domain expertise
TDS Reconciliation GST Input Credit Platform Settlements NACH Batch Matching Bank Reconciliation Form 26AS Matching ERP Integrations Enterprise Finance Ops
Primary reference: Income Tax Department — for Section 43B(h) statutory text, disallowance mechanics, and the MSMED Act 2006 cross-reference for the 45/15 day payment window.
Primary sources cited
Last reviewed against sources on 6 July 2026
  • Section 43B(h), Income-tax Act 1961 (inserted by Finance Act 2023) — Deductions only on actual payment. Any sum payable by an assessee to a micro or small enterprise beyond the time limit specified in Section 15 of the Micro, Small and Medium Enterprises Development Act 2006 shall be allowed as a deduction only in the previous year in which the sum has been actually paid. The proviso permitting payment before the due date of return under Section 139(1) does not apply to clause (h) — 43B(h) is a hard payment-basis provision without the return-filing grace window.
  • Section 15, Micro, Small and Medium Enterprises Development Act 2006 — Liability of buyer to make payment. Where any supplier supplies any goods or renders any services to any buyer, the buyer shall make payment on or before the date agreed upon between him and the supplier in writing. Where no agreement is in writing, the appointed day (that is, the day immediately following the day of acceptance or deemed acceptance) shall govern. The period agreed upon shall not exceed forty-five days from the day of acceptance or the day of deemed acceptance.
  • Section 16, Micro, Small and Medium Enterprises Development Act 2006 — Compound interest with monthly rests at three times the bank rate notified by the Reserve Bank shall be paid by the buyer to the supplier on any amount from the buyer to the supplier that is not paid within the time specified under Section 15. The interest liability arises automatically from the delay — no separate demand is required — and the interest so paid or payable is not deductible in computing the buyer's income under the Income-tax Act.
  • Section 8 Sl. 4 codes 1023 and 1024, Income-tax Act 2025 — TDS on job-work / conversion charges. Payment code 1023 applies where the principal supplies raw material — the standard weaver conversion pattern in synthetic and cotton textile chains, where yarn is issued to the powerloom weaver and grey fabric returns. Payment code 1024 applies where the weaver sources yarn independently and sells the grey fabric to the principal as a purchase transaction (not a job-work service). The 43B(h) 45-day rule applies to both patterns to the extent the counterparty is Udyam-registered as micro or small.
  • Ministry of MSME Notification S.O. 2119(E) dated 26 June 2020 — Udyam registration — Classification of MSMEs. Micro: investment in plant and machinery ≤ ₹1 crore and turnover ≤ ₹5 crore. Small: investment ≤ ₹10 crore and turnover ≤ ₹50 crore. Medium: investment ≤ ₹50 crore and turnover ≤ ₹250 crore. Udyam Registration Number (URN) is the sole valid MSME identifier since 1 July 2020. Only the Udyam certificate — verifiable on the Udyam portal — establishes MSME status for the purpose of Section 43B(h). Section 43B(h) applies only to micro and small enterprises; medium enterprises are outside its scope.

Frequently Asked Questions

What exactly does Section 43B(h) of the Income-tax Act do to a Surat synthetic mill buying grey fabric from Udyam-registered powerloom weavers?
Section 43B(h), inserted by the Finance Act 2023 and effective from assessment year 2024-25, disallows the deduction for any sum payable by the mill to a micro or small enterprise supplier until the sum is actually paid, if the payment is not made within the time limit specified under Section 15 of the MSMED Act 2006. The time limit is 45 days from acceptance of goods where there is a written agreement, and 15 days where there is no written agreement. Crucially, the proviso to Section 43B that allows payment before the due date of the return of income under Section 139(1) does not extend to clause (h). This means that if a Surat synthetic mill accrues a ₹28 lakh invoice from a Bhiwandi powerloom weaver on 3 October 2026 and pays it on 5 December 2026 (63 days later), the ₹28 lakh deduction is disallowed in FY 2026-27 even if the actual payment is made before the return-filing due date. The deduction shifts to FY 2026-27's tax computation only if paid within 45/15 days; otherwise it moves to the year of actual payment. Practically, a mill running 200-plus supplier invoices per month must track every Udyam-registered micro or small supplier's clock against the invoice acceptance date, and reconcile the payment-date register month by month to catch any invoice tipping past the 45-day mark before it hardens into a permanent timing-difference disallowance.
Who counts as a 'micro or small enterprise' for Section 43B(h) — and what document establishes the counterparty's status?
For Section 43B(h) purposes, a micro or small enterprise is one registered under the MSMED Act with a valid Udyam Registration Number (URN) issued via the Udyam portal (udyamregistration.gov.in). Micro: investment in plant and machinery up to ₹1 crore and turnover up to ₹5 crore. Small: investment up to ₹10 crore and turnover up to ₹50 crore. Medium enterprises (investment up to ₹50 crore and turnover up to ₹250 crore) are outside Section 43B(h) — the 45-day rule does not extend to them, though Section 15 MSMED interest still applies. Traders and wholesalers were retrospectively allowed to register under Udyam via Office Memorandum dated 2 July 2021, but the CBDT position (via press release dated 6 May 2024) clarifies that Section 43B(h) applies only to micro or small enterprises engaged in manufacture or provision of services — traders holding Udyam registration purely as retailers are not covered. For a powerloom weaver in Bhiwandi, Ichalkaranji, or Malegaon supplying grey fabric to a Surat synthetic mill, the enterprise is a manufacturer, and the mill's controller must verify (i) the URN on the weaver's invoice or master data, (ii) the Micro or Small classification tier, and (iii) the current Udyam certificate status on the portal at least once each financial year. The supplier's PAN alone is not sufficient — only the Udyam certificate establishes 43B(h) applicability.
How is Section 16 MSMED interest computed — and is it deductible for the buyer?
Section 16 of the MSMED Act imposes compound interest with monthly rests at three times the bank rate notified by the Reserve Bank of India, on any amount payable by the buyer to a micro or small supplier that is not paid within the 45-day (or 15-day) window under Section 15. The RBI bank rate is the standing rate at which the Reserve Bank stands ready to buy or rediscount bills of exchange or other commercial paper — historically distinct from the repo rate, though tracking it closely. If the RBI bank rate is 6.75 percent, the Section 16 interest rate is 20.25 percent per annum compounded monthly. The interest is due automatically from the day after the 45-day window closes and continues until the day of payment. For the buyer, Section 23 of the MSMED Act read with Explanation to Section 43B(h) makes the interest expressly non-deductible for income-tax purposes — the mill cannot claim the Section 16 interest as a business expense. For the supplier — the Udyam-registered powerloom weaver — the interest is chargeable to income tax as business income under Section 15 read with normal income principles: the interest accrues to the supplier by operation of statute even if the buyer does not voluntarily remit it, and the tax accountant of the supplier is expected to recognize the interest as taxable income in the year of accrual. This creates the somewhat unusual result that the supplier pays income tax on interest the buyer never actually paid — a leverage point that Section 22 MSMED Act's mandatory disclosure in the buyer's audited financial statements is designed to address.
How does the Section 43B(h) 45-day clock interact with a powerloom weaver job-work chain that also runs Section 143 CGST job-work provisions?
The two provisions run on independent clocks and independent trigger events, though they can apply to the same commercial relationship. Section 143 CGST governs the movement of principal-owned inputs to a job worker without payment of GST, subject to the 1-year deemed-supply clock from the original dispatch. This is a GST provision and applies when the mill supplies the yarn and the weaver returns grey fabric under a Rule 55 delivery challan — the weaver is charging only for conversion. Section 43B(h) governs the income-tax deduction for the buyer's payable to the MSME supplier, and starts the 45-day clock from acceptance of goods or services. In a principal-supplied job-work pattern, the taxable value on the weaver's invoice is the conversion charge only (not the yarn value), and the 45-day clock runs on that conversion-charge invoice. In an outright purchase pattern where the weaver sources its own yarn and sells the grey fabric to the mill as a purchase transaction, the 45-day clock runs on the full purchase value. A Surat synthetic mill that runs both patterns — some weavers as job-workers, others as outright suppliers — must partition its Udyam register accordingly, running the Section 143 clock against the yarn-out challans and the Section 43B(h) clock against the payable invoices. Mis-partitioning the register commonly causes double-counting: the same weaver invoice gets tracked against both the 1-year Section 143 clock and the 45-day 43B(h) clock, but only one is operative depending on the commercial pattern.
What happens in the reconciliation when the buyer discovers a 43B(h) exposure only at year-end tax audit?
Year-end discovery is the standard failure mode and it is expensive. The auditor's tax-audit report in Form 3CD (item 22) requires a disclosure of the amount of interest inadmissible under Section 23 of MSMED, and (via Form 3CD item 26 and the general 43B disclosure) the amount of any sum referred to in clause (h) of Section 43B that was not paid on or before the due date and hence not allowable. The mill's tax computation must be adjusted upward by the aggregate of all micro/small supplier invoices accrued in the year but paid beyond the 45-day window and not paid by 31 March. This is a permanent disallowance in the year of accrual — the deduction moves to the year of actual payment, creating a timing-difference cascade that ripples through the deferred tax and MAT computations. If the exposure is material and the mill also fails to disclose the interest under Section 16 in its financial statements per Section 22 MSMED, the auditor's Form 3CD reporting will surface both defects and the assessing officer can independently impose disallowance and interest. The remediation cost of year-end discovery — advance-tax top-up, deferred-tax entry, Section 22 audit disclosure amendment, and supplier-side interest remittance to close out the trailing Section 16 clock — routinely runs several times the operational cost of running the reconciliation monthly. The whole point of a Udyam register plus supplier-level 45-day clock plus payment-date reconciliation is to catch the exposure in the month it accrues, when it is still resolvable by paying the invoice inside the window.

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