DA Arrears Calculator
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Quick answer
DA arrear for each month = basic pay × (new DA% − old DA%), plus the same increase on Transport Allowance if you get it. Multiply by the number of months from the effective date until the month the new rate is first paid. For example, a 3% hike on a basic of ₹44,900 effective July and paid with October salary gives ₹1,347 × 3 = ₹4,041 on pay alone.
₹4,365
3% extra DA from Jul 2025 · income tax may apply
| Month | Basic | On pay | On TA | Total |
|---|---|---|---|---|
| Jul 2025 | ₹44,900 | ₹1,347 | ₹108 | ₹1,455 |
| Aug 2025 | ₹44,900 | ₹1,347 | ₹108 | ₹1,455 |
| Sept 2025 | ₹44,900 | ₹1,347 | ₹108 | ₹1,455 |
Monthly increase from now on: ₹1,455. Arrears are paid for months before the month the new rate is first paid.
How to use the DA Arrears
- 1Enter pay level and basic payAdd a later basic if your increment or promotion fell within the arrear months.
- 2Enter old and new DAFor example 55% → 58% for July 2025.
- 3Set the monthsThe date the new DA takes effect, and the month it is first paid in salary.
- 4See month-wise arrearsArrear on pay, on Transport Allowance, NPS deduction and the total.
Recent DA rates for central government employees
| Effective from | DA rate |
|---|---|
| Jul 2025 | 58% |
| Jan 2025 | 55% |
| Jul 2024 | 53% |
| Jan 2024 | 50% |
Check the latest Ministry of Finance order for hikes announced after these.
Rules for DA arrears
- DA is revised twice a year, effective 1 January and 1 July, based on the All-India Consumer Price Index (AICPI-IW).
- Arrears are paid for the months between the effective date and the month the new rate is first paid.
- DA is also paid on Transport Allowance, so TA arrears are due too.
- For NPS employees, 10% of the DA arrear on pay is deducted towards NPS (with the matching government share).
- Arrears are taxable in the year they are received; relief under Section 89(1) may apply.
Frequently Asked Questions
How do I calculate DA arrears?+
Multiply your basic pay by the DA increase (for example 3%) and by the number of months in arrears, then add the same on Transport Allowance.
From which date is DA arrear paid?+
From the effective date of the hike (1 January or 1 July) until the month the new rate is first included in salary.
Is DA arrear paid on Transport Allowance?+
Yes. Transport Allowance carries DA, so the increase applies to it as well.
Is NPS deducted from DA arrears?+
Yes, for NPS subscribers 10% of the arrear on pay plus DA is deducted, with the government contribution added.
What if my basic pay changed during the arrear months?+
Tick “My basic pay changed in between” and enter the new basic and the month — arrears are worked out on the correct basic for each month.
Is DA arrear taxable?+
Yes, as salary income. You may claim relief under Section 89(1) for arrears relating to an earlier year.
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