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A new accountant is told to quote the TAN on a challan and does not know what it is or where it comes from.
TAN identifies the deductor in every TDS record: challan, quarterly return and certificate. The government links these by TAN plus the deductee's PAN.
Keep each TAN, the entity or branch it belongs to, and which bank accounts and ERP companies deduct under it.
Every challan and return carries the right TAN, and vendors see credits under the deductor name they expect.
A TAN (Tax Deduction and Collection Account Number) is the 10-character number the Income Tax Department gives to anyone who must deduct or collect tax at source. It appears on every TDS challan, quarterly return and certificate, just as a PAN identifies the person being paid.
TAN vs PAN vs GSTIN
| Point | TAN | PAN | GSTIN |
|---|---|---|---|
| Who gets it | Anyone required to deduct or collect tax at source | Every taxpayer | Every GST-registered business |
| What it identifies | The deductor or collector | The taxpayer | The GST registration, per state |
| Length | 10 characters | 10 characters | 15 characters |
| Pattern | 4 letters, 5 digits, 1 letter | 5 letters, 4 digits, 1 letter | 2-digit state code, the PAN, then 3 characters |
| Example use | TDS challan and quarterly return | Income tax return, vendor master | GST invoices and returns |
In a TAN such as ABCD12345E (a made-up example), the first three letters usually point to the city or jurisdiction and the fourth letter is the initial of the deductor’s name.
Who must get a TAN, and who can quote PAN instead?
Any business that must deduct TDS needs a TAN: companies, firms, LLPs, and individuals or HUFs whose business crossed the tax-audit limit. Branches can take their own. One TAN covers every kind of deduction: the same number goes on the challan whether you deduct under 194C for contractors, 194J for professionals, 194H for commission or 192 for salary.
A few cases let an individual quote their PAN instead, for example an individual buying property, or an individual paying high rent under the special individual rent provision. These lists change, so check the current rules on the e-filing portal before relying on them.
What goes wrong if you deduct without a TAN or quote the wrong one?
- No TAN. Under the 1961 Act, failing to apply for or quote a TAN carries a penalty of ₹10,000 under Section 272BB. Worse, you cannot file a TDS return, so the vendor gets no credit.
- Wrong TAN. The challan lands against a different deductor. The return does not match it, the vendor sees nothing, and you may get a short-payment notice.
Worked example: reading a certificate
A vendor receives a TDS certificate showing ₹10,000 deducted on a ₹1,00,000 payment. The deductor block shows the company name and TAN. The vendor checks its credit statement (Form 26AS for periods to 31 March 2026, or Form 168 from tax year 2026-27) and searches by that TAN.
Now suppose the same customer has three branches, in Mumbai, Pune and Chennai, each with its own TAN. If each branch paid the vendor, the statement shows three deductors, not one. The vendor’s ledger shows one customer. To match, the vendor must group the three TANs under one customer. That is the multi-deductor problem.
What to read next
- Next in the series: What is a TDS challan and how do you read one?
- TDS glossary for India
- Multi-deductor TDS reconciliation
TransactIG reconciles TDS, including credits from customers that deduct under several TANs. See TDS reconciliation software and reconciliation software for India.