Climb to your financial peak.

8th Pay Commission Arrears Calculator

If the 8th CPC is implemented late, the pay difference backdated to January 2026 could arrive as a lump sum. Enter your numbers to estimate it.

Projection only. The 8th CPC report is due in 2027 and no official fitment factor exists. The government has indicated January 1, 2026 as the effective date, but arrears are not confirmed. This page models the scenario — it is not a promise.

Your numbers

Central DA is 60% w.e.f. 1 Jan 2026. State employees: use your state's current rate.
7th CPC used 2.57; unions demand up to 3.83; analysts expect 1.83–2.46.
Covers Jan 2026 → Dec 2026.
Estimated total arrears
₹0
Monthly gap × 12 months (Jan 2026 → Dec 2026)
What you get now (basic + DA)
₹0
Projected new basic (DA resets to 0)
₹0
Monthly arrears gap
₹0
That gap is worth per year
₹0

Arrears at different payout delays

The longer implementation takes, the bigger the lump sum — for your current inputs:

Payout afterPeriodTotal arrears

Why the gap is smaller than basic × fitment − basic

A common mistake: with ₹50,000 basic and a 2.57 fitment, people compute ₹1,28,500 − ₹50,000 = ₹78,500/month in arrears. That's wrong — because you're already receiving DA on top of that basic (₹30,000 at 60%), so your current pay is really ₹80,000.

The fitment factor folds the old basic plus the accumulated DA into the new basic. That's exactly why DA resets to 0% when a new commission starts — counting DA twice would double-pay you. The honest monthly gap is:

New basic − (Old basic + Old DA) = ₹1,28,500 − ₹80,000 = ₹48,500/month

Twelve months of that gap is ₹5.82 lakh in arrears; eighteen months is ₹8.73 lakh. Change the fitment factor above to see how the union demand of 3.83 (₹63,000+ gap at 2.86) changes the picture.

Related

Want the full monthly salary picture, not just arrears? Try the Pay Commission Calculator — 7th CPC salary by pay level, 6th CPC comparison, and an adjustable 8th CPC projection with charts.

FAQs

Are 8th CPC arrears guaranteed?
No. The government has indicated January 1, 2026 as the effective date, and past commissions (like the 7th CPC from January 2016) paid arrears backdated to the effective date — but until the 8th CPC report is submitted (due 2027) and the government acts on it, nothing is confirmed.
Why do you subtract DA from the new basic?
Because you're already being paid that DA every month. The fitment factor rolls your old basic plus accumulated DA into the new basic, and DA resets to 0% on implementation. Subtracting the full current pay (basic + DA) avoids counting the same DA twice.
What fitment factor should I use?
No official factor exists. The 7th CPC used 2.57; employee unions are demanding up to 3.83; some analysts expect 1.83–2.46. This calculator defaults to 2.57 and lets you model any scenario.
When will the 8th Pay Commission be implemented?
The commission was constituted in November 2025 with 18 months to report (due ~2027), followed by government approval and rollout. Implementation with arrears is widely expected in 2028. The Bengaluru stakeholder consultation opens October 7, 2026.
Disclaimer: Projection only, computed in your browser — no data leaves your device. The 8th CPC fitment factor is not official; the effective date, DA treatment and payout timing are subject to the commission's report and government decision. Verify against official orders before reliance.