TDS looks like an administrative chore — withhold a percentage, deposit it, file a quarterly statement. It becomes expensive because each part of it carries its own consequence, and the consequences stack.
Three separate failures, three separate costs
| What went wrong | What it costs you |
|---|---|
| Did not deduct at all | Interest from the date it was deductible, plus a portion of the expense can be disallowed in your assessment |
| Deducted but deposited late | Interest at a higher rate from the date of deduction to the date of deposit |
| Deposited but return filed late | A fee per day until the return is filed, and your deductee cannot claim credit |
Notice the second row. Once you have deducted the money, it is no longer yours — you are holding it on the government's behalf. That is why the interest rate for late deposit after deduction is higher than for not deducting at all.
The disallowance is what actually hurts
The relief is that the disallowance generally reverses in the year you eventually deposit the tax. But that is a timing benefit, not a cure — you pay the tax now and get the deduction later, which is a cash flow cost on top of the interest.
Where businesses miss it
- Rent to a landlord, once it crosses the annual threshold. Very commonly missed by small offices.
- Professional and consultancy fees, including to your own advisors.
- Contractor payments, where the cumulative annual figure crosses the limit even though each bill is small.
- Commission and brokerage.
- Payments to non-residents, where the rate is higher, the treaty may reduce it, and Form 15CA and 15CB come into play.
- Provisions made at year end. Tax is deductible on a credit to the payee's account, and 'provision for expenses' counts.
The vendor problem
Your deductee cannot claim credit for tax you deducted until you file the return that reports it. So a late return does not just cost you a fee — it shows up as a missing entry in your vendor's Form 26AS, and they will chase you for it, usually by withholding your next payment.
What to actually do
- 01Map your recurring payments to sections once, at the start of the year, and put the rate against each vendor in your accounting system.
- 02Collect PANs before the first payment. A missing PAN means deduction at a much higher rate.
- 03Deposit by the due date for the month, without exception. This is the cheapest discipline in the whole regime.
- 04Reconcile challans to the return before filing, so credits reach your deductees first time.
- 05Review provisions at year end specifically for TDS, because that is where the year's misses concentrate.