The 8th Pay Commission takes effect from 1 January 2026, which means every month until the report is implemented adds one more month of arrears for roughly 50 lakh central government employees and 69 lakh pensioners. The number everyone is waiting for is the fitment factor — and until the commission announces it, any single figure you read is a rumour.
This calculator handles that honestly: it computes your projected new basic, monthly gain and total arrears across the full range of publicly discussed fitment scenarios (1.83 to 2.46), so you can see your best case, worst case and middle case in one table instead of trusting one headline.
How to Use the 8th CPC Arrears Calculator
- Enter your current 7th CPC basic pay (from your pay matrix level, without DA or allowances).
- Set your current DA percentage and the number of arrears months (January 2026 up to the expected payout).
- Pick a fitment scenario and click Calculate Arrears — the results also show all four scenarios side by side.
The 8th Pay Commission report is awaited. Fitment factors below are scenarios discussed publicly — not official figures. Arrears are expected to accrue from 1 January 2026.
Why DA reset makes the hike smaller than headlines suggest
When a pay commission is implemented, your accumulated DA merges into the new basic and resets to zero. So at a basic of ₹35,400 with 58% DA, you already draw about ₹55,930 as basic + DA. A 2.0 fitment gives a new basic of ₹70,800 — a monthly gain of about ₹14,870, or roughly 27% over what you draw today, not the “100% hike” a 2.0 factor seems to promise. Allowances such as HRA and TA are revised separately by the commission and are not part of this calculation.
Frequently Asked Questions
How are 8th Pay Commission arrears calculated?
Arrears = (projected new basic − your current basic + DA) × months since 1 January 2026. The new basic is your 7th CPC basic multiplied by the fitment factor the commission recommends; DA resets to zero on implementation, as it did in earlier pay commissions.
What fitment factor will the 8th Pay Commission use?
It has not been announced. Public discussion ranges from about 1.83 (conservative, DA-neutral-plus) to 2.46 (employee-side demand). The 7th CPC used 2.57. This calculator lets you compare scenarios across that whole range rather than betting on one rumour.
From what date will 8th CPC arrears be paid?
The 8th Pay Commission takes effect from 1 January 2026, so arrears accrue from that date until the month the revised pay is actually implemented after the report is accepted.
Does a 2.0 fitment factor mean a 100% salary hike?
No — this is the most common confusion. Your current pay already includes DA (over 55% of basic). A 2.0 fitment on basic, with DA resetting to zero, works out to an effective hike of roughly 25-30% over basic + DA, not 100%.