How to use the TDS Late Payment Interest Calculator
- 1
Enter the TDS amount. - 2
Enter the date TDS should have been deducted — the date of payment or credit to the payee, whichever is earlier. - 3
Enter the date you actually deducted it and the date you deposited (or will deposit) it. - 4
The calculator shows the deposit due date, the months counted and the interest for each delay.
TDS interest formula
Late deduction: TDS × 1% × months from date deductible to date deducted
Late deposit: TDS × 1.5% × months from date deducted to date deposited
Deposit due date: 7th of the next month (30 April for tax deducted in March)
Months are counted by calendar month, and part of a month is a full month
Worked example
TDS of ₹10,000 was deductible on 10 April 2026, deducted on 25 May 2026 and deposited on 8 July 2026. Late deduction: April and May = 2 months × 1% × ₹10,000 = ₹200. Deposit was due on 7 June. Late deposit: May, June and July = 3 months × 1.5% × ₹10,000 = ₹450. Total interest payable: ₹650, to be paid before filing the TDS return.