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Indian auto-component suppliers that capitalise OEM-funded tooling under Section 2(19) of the CGST Act must run a 60-month Rule 43 ITC amortisation schedule on every die, mould and progressive tool — with a monthly common-credit attribution of one-sixtieth of the total ITC, a proportionate reversal for any exempt or zero-rated turnover, an accelerated reversal under Section 18(6) and Rule 44(6) if the tool is sold or transferred mid-life, and a parallel piece-rate amortisation invoicing recovery from the OEM that must reconcile to the supplier's books on both the asset side and the receivable side. A Tier-1 with twenty active capitalised tools at ₹1 crore average value can carry ₹3.6 crore of unamortised ITC at any given time, and the 60-month schedule per tool is impossible to manage on a spreadsheet without compounding audit-time reversal exposure.
On capitalisation, stamp every tool with date of invoice, total ITC available, 60-month end date, monthly Rule 43 attribution amount and exempt-turnover sensitivity rule; run the monthly schedule by computing (total ITC divided by 60) times (exempt turnover divided by total turnover) as the reversal for that month; track cumulative attribution against cumulative reversal; on any sale or transfer, compute remaining-useful-life ITC versus tax on transaction value and reverse the higher amount; for piece-rate recovery, run a parallel ledger of tooling-cost-recovered-per-part against the original capitalised value and surface the price-protection adjustment when actual lifetime pieces deviate from forecast.
Capital-goods register with tool ID, OEM programme, capitalisation date, ITC amount, 60-month end date and monthly Rule 43 row; Rule 43 reversal calendar with monthly run on the GSTR-3B prep date; exempt-turnover feed from the monthly sales register; piece-rate recovery ledger keyed to part HSN and programme; mid-life disposal workflow with Section 18(6) reversal computation and Table 4(B)(2) prep; reconciliation rule between supplier capital-goods register, GSTR-3B Table 4 and OEM tooling-charge invoice register.
A monthly Rule 43 ITC attribution and reversal entry for each capitalised tool; a board-visible unamortised ITC position by programme; an accelerated reversal pre-fill for any tool sold or transferred mid-life; a piece-rate recovery reconciliation showing tooling-cost-recovered versus capitalised value; and an audit-defence pack tying every Rule 43 row to the capitalised invoice, the 60-month schedule and the exempt-turnover proof.
A Tier-1 stamping supplier in Chakan opens its quarterly capital-goods review at 10:00 IST. The fixed-asset register shows 18 active OEM-funded tools — 11 Maruti, 5 Mahindra, 2 Tata — with a total capitalised value of ₹19.4 crore and unamortised ITC of ₹2.7 crore against the Rule 43 60-month schedules. The CFO has three questions on the table. Of the 18 tools, three are at month 51 and beyond, with only a few months of attribution left before the schedule closes; one tool — a Maruti progressive die capitalised on 1 January 2023 — has just been quoted to a Pune scrap dealer at ₹35 lakh, and the question is whether the supplier is sitting on a reversal exposure under Section 18(6); and 4% of the supplier’s monthly turnover is now from a SEZ-export programme, which means the Rule 43 monthly attribution is carrying a proportionate reversal that the spreadsheet has not been refreshed for in eight months. GST tooling capital goods Rule 43 auto component India is the single most under-managed compliance surface in mid-sized Tier-1s, and the consequences land at GSTR-9 reconciliation, not before.
Quick reference
| Concept | Provision | Regulator | Rate / clock |
|---|---|---|---|
| Capital-goods definition | Section 2(19) CGST Act | CBIC | Capitalised in books of person claiming credit |
| Capital-goods ITC eligibility | Section 16 CGST Act | CBIC | 100% on invoice date, attribution thereafter |
| Apportionment rule | Rule 43 CGST Rules | CBIC | 60 months from invoice date |
| Monthly attribution | Rule 43(1)(d) | CBIC | One-sixtieth of total ITC per month |
| Exempt reversal | Rule 43(1)(e) | CBIC | Monthly attribution times exempt-turnover ratio |
| Mid-life sale reversal | Section 18(6) + Rule 44(6) | CBIC | Higher of unamortised ITC or tax on transaction |
| Sale invoice GST | Section 31 CGST Act | CBIC | At time of removal |
| Common HSN — interchangeable tools | HSN 8207 | CBIC | 18% GST |
| Common HSN — moulds | HSN 8480 | CBIC | 18% GST |
| TDS on tooling supply (supplier side) | Section 393(1)(k) code 1012 | CBDT | 0.1% above ₹50 lakh aggregate per FY |
Who actually capitalises an OEM-funded tool — and why that decides the ITC
Section 2(19) of the CGST Act is the gating clause. It defines capital goods as goods the value of which is capitalised in the books of account of the person claiming the credit and which are used or intended to be used in the course or furtherance of business. The Section 16 ITC entitlement attaches to the same person — the one in whose books the asset sits.
In the predominant OEM-funded tooling pattern in Indian auto-component supply, three commercial facts come together. The OEM pays a one-time tooling charge to the supplier — sometimes the full cost of the die, sometimes a partial advance against a piece-rate amortisation recovery. The supplier procures the die from a die-maker (often a specialist Tier-2 in Faridabad, Ludhiana or Coimbatore) and capitalises the die in its own fixed-asset register at the procurement cost. The supplier then runs the OEM programme on its own shop floor for the part-life of the programme — typically four to seven years — without physically returning the die to the OEM.
The accounting follows the physical fact. The supplier capitalises the asset. The supplier depreciates it (typically on Schedule II of the Companies Act 2013 — 8 to 15 years for moulds and dies depending on industry sub-class). The supplier claims the GST ITC on the die procurement invoice. The OEM expenses the tooling charge against programme-development cost in its own books, claims ITC on the tooling-supply invoice it received, and does not capitalise.
The exception — and there are perhaps 8% to 12% of programmes that fall into it — is the OEM-retained-ownership model. The OEM funds the die, capitalises it in its own books, and bails it to the supplier on a free-issue basis under a returnable-tooling agreement. In that case the OEM holds the Rule 43 attribution and the supplier holds no ITC on the tooling at all. The marker for the exception is the existence of a bailment agreement and an OEM fixed-asset tag physically on the die.
For the dominant 88% to 92% of programmes the supplier is the ITC-holder. Everything below assumes that pattern.
Rule 43 versus Rule 42 — why the choice matters
Rule 42 of the CGST Rules apportions input and input-service ITC where the registered person makes both taxable and exempt supplies. The mechanic is month-by-month on actual consumption: compute the common credit, multiply by the exempt-to-total turnover ratio for that month, reverse the proportionate amount in the GSTR-3B of the month.
Rule 43 does the same apportionment but for capital-goods ITC, and spreads the credit attribution over a 60-month useful-life window from the date of invoice. The monthly attribution is one-sixtieth of the total ITC. Only the proportion attributable to exempt or zero-rated supplies (calculated using the same exempt-to-total ratio for that month) reverses each month under Table 4(B)(1) of the GSTR-3B.
The economic logic: a die is consumed over its useful life, not in the month of purchase. Rule 43 prevents the supplier from claiming the full ITC up-front when only a fraction of the asset’s productive output will face an exempt or zero-rated supply pattern. Where the supplier makes 100% taxable supplies, the Rule 43 attribution still runs but the reversal under Rule 43(1)(e) is zero — the credit simply matures in full over 60 months without any reduction. Where the supplier has even a small SEZ-export, deemed-export or exempt-supply line, the reversal becomes positive and the unamortised ITC starts shedding monthly.
The wider capital-goods ITC analysis — including the Section 17(5) blocks on motor vehicles, civil works and gifts — is in ITC on capital goods for auto-component manufacturers.
Build the 60-month Rule 43 ITC schedule for any capitalised tool
Enter the capitalised value, GST rate, capitalisation date and your projected exempt-turnover ratio to see the monthly attribution, the monthly reversal and the unamortised credit position at any future date.
Open the capital-goods ITC amortisation schedule →Piece-rate amortisation invoicing — the recovery side
A capitalised tool is a cost the supplier has to recover from the OEM. The standard recovery mechanism in Indian auto-component pricing is piece-rate amortisation built into the part-sale price. The arithmetic: divide the capitalised tool cost by the forecast lifetime pieces from the OEM programme, get a per-piece tooling-recovery wedge, add the wedge to the part-sale unit price, and bill GST on the full taxable value including the wedge.
A worked illustration. A stamping die capitalised at ₹1.2 crore, with a Maruti programme forecast of 5 lakh lifetime pieces, gives a per-piece amortisation wedge of ₹24. If the bare part price is ₹86, the billing price becomes ₹110. GST at 18% applies to the full ₹110, not just the ₹86. The OEM avails ITC on the ₹110 part-purchase invoice. The supplier’s revenue ledger records ₹86 as part revenue and ₹24 as tooling-recovery revenue per piece. On 5 lakh actual shipped pieces, the supplier has recovered ₹1.2 crore — matching the capitalised value.
The reconciliation requirement: the supplier’s books must run a parallel ledger of cumulative-tooling-recovered-per-part against the original capitalised value. If actual lifetime pieces are lower than forecast (programme cancelled early, demand drop), there is an under-recovery and a price-protection clause typically triggers a balloon settlement from the OEM. If actual lifetime pieces are higher than forecast (programme extended), the supplier may have to refund the over-recovery — or, more commonly in industry practice, the OEM and supplier renegotiate the per-piece wedge downward for the extended-life balance.
The wider mechanic, including the Section 15 valuation question on whether the wedge is taxable as part of the part-price (it is) and the price-protection clause arithmetic, is in Tooling cost recovery and amortisation for auto components.
Worked example — Maruti-funded ₹1.2 crore stamping die, sold at month 38
The full lifecycle on a single tool:
- Capitalisation date: 1 April 2024.
- Procurement invoice (from die-maker): ₹1.2 crore plus 18% GST = ₹1.4160 crore total invoice; ITC available = ₹21.60 lakh.
- 60-month attribution: ₹21.60 lakh divided by 60 = ₹36,000 per month.
- Supplier’s monthly exempt-turnover ratio: 4% (small SEZ-export programme runs in parallel).
- Monthly Rule 43 reversal under Table 4(B)(1): ₹36,000 times 4% = ₹1,440 per month.
- Cumulative reversal across months 1 to 38: ₹1,440 times 38 = ₹54,720. Cumulative attribution: ₹36,000 times 38 = ₹13.68 lakh. Net credit availed and retained through month 38 = ₹13.68 lakh minus ₹54,720 = ₹13.13 lakh.
- Unamortised ITC at end of month 38: ₹21.60 lakh minus ₹13.68 lakh = ₹7.92 lakh.
On 1 June 2027 (start of month 39) the supplier executes a sale of the die to a scrap dealer at ₹35 lakh. Section 18(6) and Rule 44(6) trigger:
- Path A (remaining unamortised ITC): ₹21.60 lakh times remaining months 22 divided by 60 = ₹7.92 lakh.
- Path B (tax on transaction value): ₹35 lakh times 18% = ₹6.30 lakh.
- Reversal payable: higher of A and B = ₹7.92 lakh.
Reversal lands in the GSTR-3B of June 2027 under Table 4(B)(2) — Others. The supplier raises a Section 31 sale invoice on the scrap dealer at ₹35 lakh plus 18% GST = ₹41.30 lakh total, of which ₹6.30 lakh is output tax. The ₹7.92 lakh reversal is independent of the ₹6.30 lakh output tax. The net cash impact in the GSTR-3B month: ₹7.92 lakh reversal flowing into output tax liability, ₹6.30 lakh output tax on the sale invoice — total ₹14.22 lakh of GST liability against ITC available for the period from the supplier’s other inward supplies.
Now layer the parallel piece-rate recovery position. By end of month 38 the supplier has shipped 2.85 lakh parts (broadly tracking the 5 lakh-piece 60-month forecast). Cumulative tooling-recovery revenue: 2.85 lakh times ₹24 = ₹68.40 lakh. Capitalised cost: ₹1.20 crore. Net under-recovery at point of disposal: ₹51.60 lakh. This is the figure the supplier carries to its OEM price-protection conversation — Maruti either settles the under-recovery in a lump-sum closure or the supplier’s books recognise a programme-disposal loss on the disposal-month P&L.
Common audit findings on tooling Rule 43 schedules
Five patterns dominate at GSTR-9 reconciliation and GST audit:
1. ITC claimed at 100% in the invoice month, no Rule 43 attribution schedule started. The most common error: the procurement invoice is treated as input ITC under Rule 42 instead of capital-goods ITC under Rule 43. The audit-time reversal is the cumulative un-attributed portion, plus Section 50 interest.
2. Exempt-turnover ratio refreshed annually instead of monthly. Rule 43(1)(e) is explicit that the ratio is computed on monthly turnover for the month of attribution. Annual averaging leaves a permanent reconciliation gap.
3. Mid-life sale without Section 18(6) reversal. The supplier raises a sale invoice with 18% GST but does not also compute the remaining-unamortised-ITC reversal. Audit finding lands in the GSTR-9 reconciliation against the capital-goods register.
4. Tooling sold at par or below remaining-unamortised value with no Section 15 fair-market support. Section 15 of the CGST Act applies to related-party or low-value sales; if the scrap-dealer sale is materially below fair market value the audit may apply Section 15 valuation rules and re-determine the output tax.
5. Loss of capital-asset tracking after physical scrapping. The die is physically scrapped at year 6, but the supplier’s GST register still shows it as capitalised; the un-reversed unamortised position becomes an audit exposure when the fixed-asset register is reconciled to the GST register.
Tax overlay — TDS and TCS adjacencies
The Rule 43 mechanic is the GST leg. The same tooling lifecycle carries TDS and TCS legs under the Income Tax Act 2025:
- Section 393(1)(k), payment code 1012 — TDS on purchase of goods at 0.1% on aggregate purchases above ₹50 lakh per FY from any single seller. The die-maker procurement invoice typically crosses this threshold for any single-tool buy. The supplier deducts at the time of credit or payment, whichever is earlier.
- Section 394, payment code 1071 — TCS on scrap sale at 1% of sale value. Applies to the disposal-side mid-life sale of the die to a scrap dealer. Output tax of 1% is collected and deposited; the buyer can take credit against its own income tax in due course.
- GST law is unchanged by the Income Tax Act 2025. Section 2(19), Section 16, Rule 43 and Section 18(6) of the CGST Act and CGST Rules all continue to apply as before. Only the TDS and TCS overlay carries the new payment-code stack from 1 April 2026. The cross-era handling, where Form 26AS entries for FY 2025-26 still carry legacy 194Q and 206C(1H) references against the new 1012 and 1071 codes, is dissected in TDS payment codes 1001-1092.
How does Rule 43 interact with GSTR-9 reconciliation?
Three independent disclosures must agree on the capital-goods bucket at year-end:
- GSTR-3B Table 4 — monthly attribution under Table 4(A)(1) and monthly reversal under Table 4(B)(1) for Rule 43, plus any mid-life reversal under Table 4(B)(2).
- GSTR-9 Table 6 and Table 7 — Table 6 ITC availed (with capital-goods sub-classification) and Table 7 reversals (with the Rule 43 row separately broken out).
- Supplier’s capital-goods register — capitalised value, 60-month schedule, cumulative attribution, cumulative reversal, unamortised position.
The wider GSTR-9 reconciliation cycle for Tier-1 manufacturers is in GSTR-9 filing for auto-component manufacturers.
Continue reading — the auto-component reconciliation cluster
- Sub-pillar: Automotive component manufacturing reconciliation in India.
- Recovery side: Tooling cost recovery and amortisation for auto components for the piece-rate invoicing mechanic.
- Capital-goods ITC: ITC on capital goods for auto-component manufacturers for the broader Section 16 and Section 17(5) analysis.
- Year-end reconciliation: GSTR-9 filing for auto-component manufacturers.
- External authority: the CBIC GST portal for Rule 43, Section 2(19), Section 16 and Section 18(6).
What automated reconciliation changes
Running 60-month Rule 43 schedules on 18 active capitalised tools, with monthly exempt-turnover refreshes, mid-life disposal computations, piece-rate recovery ledgers and GSTR-9 year-end reconciliation back to the fixed-asset register, is where the ₹2.7 crore unamortised ITC position quietly drifts away from the books. Purpose-built auto component reconciliation software India stamps every capitalised tool with the 60-month schedule, runs the monthly Rule 43 attribution and reversal entries automatically, refreshes the exempt-turnover ratio from the live sales register, surfaces mid-life disposal exposure on quote acceptance, and produces an audit-defence pack tying Rule 43 to Table 4(B)(1) of GSTR-3B and Table 7 of GSTR-9. TransactIG carries 24+ industry presets including configurations for capital-goods amortisation, piece-rate recovery and the Section 18(6) disposal mechanic. Customer outcomes include match-rate improvement from 51% to 88% on capital-goods registers reconciled to GST. Build is two-to-four weeks on AWS Mumbai (ISO 27001:2022). For the wider GST-side discipline see GST reconciliation software.