The TDS deposit due date for August 2026 is Monday 7 September 2026. Every rupee you withheld last month from a contractor, a landlord, a professional or an employee is money you are holding on someone else’s behalf, and the clock on it runs out in five days. This is the deadline that most often gets treated as administrative and is in fact the one that costs money twice — once in interest, and again in the relationship with whoever is waiting for the credit.
What the TDS deposit due date for August 2026 actually covers
The rule is a period, not a calendar date. Tax deducted in any month has to reach the credit of the Central Government within seven days from the end of the month in which the deduction is made. August ended on Monday 31 August 2026. Seven days from that gives you 7 September 2026, which is also a Monday — so there is no weekend cushion to fall back on this month.
It covers everything you withheld in August, whatever the payment was for: contractor bills, professional fees, rent, commission, salary, interest. One date, one deposit cycle.
Which deductions fall into this cycle
| Deducted in | Deposit by | Day of week |
|---|---|---|
| August 2026 | 7 September 2026 | Monday |
| September 2026 | 7 October 2026 | Wednesday |
| March (any year) | 30 April | separate rule — see below |
The date is driven by when you deducted, not when you paid the vendor and not when the invoice was raised. A bill settled on 29 August with tax withheld on the same day belongs to this cycle even if it is still sitting unposted in your books.
What missing it costs
Two different interest charges exist, and firms routinely confuse them because both are described loosely as “TDS interest”. They run over different periods and at different rates.
Deducting late. Interest is levied at 1% for every month or part of a month on the amount of the tax, from the date on which the tax was deductible to the date on which it was actually deducted.
Depositing late. Interest is levied at 1.5% for every month or part of a month, from the date on which the tax was deducted to the date on which it was actually remitted to the credit of the Government.
“Part of a month” is the phrase that catches people. Deposit on 8 September instead of 7 September and you are one day late, but the interest is calculated for a whole month. There is no pro-rating.
Deduct in August and deposit in November and you are not paying interest for the days involved — you are paying it for every month or part of a month the money sat with you.
The cost nobody puts in the calculation
Interest is the visible penalty. The one that damages a working relationship is quieter: the person you deducted from cannot claim the credit until you have deposited it and reported it.
Until that happens, the deduction shows on their side as a reduced payment and on the tax system’s side as nothing at all. Their tax credit statement will not carry it. If they are filing, or reconciling before filing, they will chase your accounts team — and the honest answer is that the money left them a month ago and has not yet reached the government.
For a business withholding from a dozen vendors, that is a dozen conversations you did not need to have. For a business withholding from employees, it is worse: they discover it when their own return does not reconcile.
The one exception worth knowing
March does not follow the seven-day rule. Tax deducted in the month of March is deposited by 30 April, not 7 April. It is the only month that gets a longer runway, and it exists because March is the financial year end. Do not generalise it — every other month, including August, is seven days from month end.
What to do before Monday
Five days is enough if you start from the ledger rather than from memory.
Pull every August payment where tax was withheld, including the ones processed outside the main payables run — reimbursements to professionals, a one-off rent payment, a commission settled directly. These are the entries that get missed, and a missed entry is a late deduction, which carries its own 1% charge on top.
Check the rate applied against the nature of each payment, not against what was used last month. A vendor who changed status, or a payment reclassified between contract and professional fees, changes the rate.
Deposit as one exercise, not as it occurs to you. A partial deposit still leaves the balance accruing interest at 1.5% for every month or part of a month.
Tell your larger vendors once it is done. It costs one line in an email and removes the reconciliation query before it is raised.
Questions companies ask first.
What is the TDS deposit due date for August 2026?
7 September 2026, a Monday. Tax deducted in a month must reach the credit of the Central Government within seven days from the end of that month, and August 2026 ended on 31 August.
What is the interest if I deposit TDS late?
Interest runs at 1.5% for every month or part of a month, from the date on which the tax was deducted to the date on which it was actually remitted to the Government. Because it is charged per month or part of a month, being one day late still costs a full month’s interest.
Is the interest for deducting late the same as for paying late?
No. Deducting late is charged at 1% for every month or part of a month, from the date the tax was deductible to the date it was actually deducted. Depositing late is charged at 1.5% over a different period. Both can apply to the same payment.
Why can my vendor not see the TDS credit yet?
Because a deduction only becomes a claimable credit once it has been deposited and reported. Until both are done, the amount is missing from their tax credit statement even though it has already left their payment.