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When a Pay Commission's effective date is set retrospectively (as has happened with every recent Pay Commission), employees are owed arrears — the cumulative gap between their old and new pay for every month between the effective date and the date the revised pay actually starts being disbursed. This calculator estimates that arrears amount.
8th Pay Commission Arrears Calculator (Basic + DA, Month-wise)
Arrears are counted from the effective date (expected 1 January 2026) up to the month before revised pay starts. This version includes the DA change and yearly July increments, so the result is far closer to what your DDO will actually pay.
Fitment Factor Applied: 0.00x
First-month Arrear Amount: ₹0
Months Covered: 0
⚠️ Important Note on Accuracy
This calculator produces an estimate based on publicly discussed 8th Pay Commission fitment logic and historical Pay Commission patterns. It is not an official government tool. Always cross-check your final figures with your department's Pay & Accounts Office, DDO, or HR/establishment section once the official 8th CPC notification is published. For authoritative information, refer to dopt.gov.in.
How Arrears Are Calculated
Arrears are simply the sum of the monthly pay difference across every month covered by the retrospective effective date:
- Calculate your revised basic pay (current basic × fitment factor for your level).
- Subtract your current basic pay to get the monthly arrear amount.
- Multiply the monthly arrear amount by the number of months between the effective date and the date you actually start receiving the revised pay.
In practice, arrears also apply to Dearness Allowance and other basic-pay-linked components, so your actual total arrears (once officially processed by your DDO) will typically be somewhat higher than this basic-pay-only estimate.
Are Arrears Taxable?
Yes — arrears are taxable in the financial year they're received, which can push some employees into a higher tax bracket for that year. Section 89 of the Income Tax Act provides relief (via Form 10E) that spreads the tax impact of a lump-sum arrear payment back across the years it relates to, reducing the overall tax burden. Consult a Chartered Accountant to claim this relief correctly.
Why DA Makes Arrears Smaller Than You Expect
Many arrears calculators multiply your basic pay by the fitment factor and treat the whole jump as arrears. That overstates the amount. In reality, the DA you were paid during the arrears period (60%, then 63%, and so on) is adjusted against the new pay, because DA is merged into the revised basic and restarts at a low rate.
Monthly arrear = (Revised Basic + new DA) − (Old Basic + old DA already paid)
Example: Level 7, basic ₹44,900, fitment 2.28x. Revised basic = ₹1,02,400. In January 2026 the old pay was ₹44,900 + 60% DA = ₹71,840, and the new pay is ₹1,02,400 + 1% DA = ₹1,03,424. The real arrear is about ₹31,584 for that month, not the ₹57,500 you get from comparing basic pay alone.
How the new DA is estimated: DA on the revised basic tracks the same price index. We convert the old DA using (1 + old DA) ÷ 1.58 − 1, where 1.58 reflects the 58% DA merged on 1 January 2026, and drop decimals as the government does. This gives about 1% for Jan–Jun 2026 and 3% for Jul–Dec 2026.
8th Pay Commission Arrears Estimates by Level (24 Months)
Estimated total arrears for an employee at the entry cell of each level for January 2026 to December 2027 (24 months), including the DA adjustment and July increments. DA rises assumed: 60% → 63% → +3% every half-year.
| Level | Basic (Jan 2026) | Arrears @ 1.92x | Arrears @ 2.28x | Arrears @ 2.57x |
|---|---|---|---|---|
| Level 1 | ₹18,000 | ₹1,54,464 | ₹3,20,112 | ₹4,53,990 |
| Level 2 | ₹19,900 | ₹1,71,120 | ₹3,54,192 | ₹5,02,410 |
| Level 3 | ₹21,700 | ₹1,86,996 | ₹3,88,140 | ₹5,50,050 |
| Level 4 | ₹25,500 | ₹2,19,144 | ₹4,55,178 | ₹6,44,478 |
| Level 5 | ₹29,200 | ₹2,50,896 | ₹5,20,542 | ₹7,38,510 |
| Level 6 | ₹35,400 | ₹3,04,506 | ₹6,30,816 | ₹8,94,846 |
| Level 7 | ₹44,900 | ₹3,84,960 | ₹7,99,056 | ₹11,32,836 |
| Level 8 | ₹47,600 | ₹4,08,882 | ₹8,47,272 | ₹12,01,608 |
| Level 9 | ₹53,100 | ₹4,55,616 | ₹9,46,326 | ₹13,41,750 |
| Level 10 | ₹56,100 | ₹4,81,392 | ₹10,00,128 | ₹14,16,714 |
| Level 11 | ₹67,700 | ₹5,80,818 | ₹12,06,018 | ₹17,09,178 |
| Level 12 | ₹78,800 | ₹6,76,218 | ₹14,04,174 | ₹19,91,418 |
| Level 13 | ₹1,18,500 | ₹10,16,436 | ₹21,12,426 | ₹29,94,216 |
| Level 13A | ₹1,31,100 | ₹11,24,940 | ₹23,35,500 | ₹33,11,940 |
These are projections, not official figures. Actual arrears depend on the final fitment factor, the effective date the government notifies, DA orders and your own increments or promotions.
Expected 8th CPC Arrears Timeline (as of September 2026)
- 1 January 2026 Widely expected effective date. Arrears would be counted from here.
- 3 November 2025 → about May 2027 The Commission has 18 months to submit its report. It is still holding state-level consultations (Bengaluru 7–8 Oct, Mumbai 22–23 Oct 2026).
- After the report Government review, Cabinet approval and the notification of revised pay rules. Under the 7th CPC this took about seven months (report November 2015, Cabinet approval June 2016).
- Revised pay + arrears Under the 7th CPC, arrears from 1 January 2016 were paid in one go soon after the pay orders were issued.