8th Pay Commission Arrears Calculator for Pensioners

Estimate your 8th Pay Commission arrears – the lump sum you get for the gap between the 1 January 2026 effective date and the month your revised pay actually starts. Works for employees and pensioners; handles the DA reset, HRA/TA and the growing monthly difference automatically.

Estimate only. As of mid-2026 the 8th CPC is still in consultation; the fitment factor, effective date and pay rules are not yet officially announced. Figures here are illustrative projections.
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1.833.83
Class: Z · HRA 10%
Category: Other cities
%
Estimated total arrears
₹0
over 18 months of retrospective pay
  • Retrospective period18 months
  • Revised (8th CPC) basic₹0
  • First-month difference₹0
  • Last-month difference₹0
  • Average monthly arrear₹0
  • Total gross arrears₹0

Gross arrears before tax. Because arrears are received in one year, Section 89(1) relief via Form 10E can reduce the tax – see the guide below.

How your monthly arrear grows over the period

Each bar is one month's difference between your projected 8th CPC pay and current 7th CPC pay. The gap widens over time as 7th CPC DA keeps rising and the 8th CPC allowances step up.

Monthly arrear (8th CPC − 7th CPC)

Month-by-month arrear breakup

Month 7th CPC DA% 7th CPC gross 8th CPC DA% 8th CPC gross Arrear
Total gross arrears ₹0

The monthly arrear is the difference between your estimated 8th CPC gross and your current 7th CPC gross for that month. It grows because 7th CPC DA keeps rising through the period while the 8th CPC starts from a reset DA and steps up more slowly. Every figure is an estimate pending the Commission’s report; treat these as scenarios, not promises.

8th Pay Commission arrears calculation

When the 8th Central Pay Commission is implemented, the revised pay is expected to take effect retrospectively from 1 January 2026. Because actual implementation is likely only in 2027 or 2028, you receive the difference between your new and old salary for every month in between as a one-time arrear. This is the heart of 8th pay commission arrears calculation, and this calculator does it month by month. The core formula is simple:

Total arrears = Σ (8th CPC monthly gross − 7th CPC monthly gross) for every retrospective month

The 8th CPC monthly salary is built by multiplying your current basic by the fitment factor, resetting DA and rebuilding it, applying revised HRA and scaling TA. The 7th CPC side keeps its current basic but its DA keeps rising, so the monthly gap is not constant – it grows over the period, which is why a simple “monthly difference × months” shortcut understates the total.

8th pay CPC arrear calculator – how to use it

This 8th pay CPC arrear calculator follows four simple steps. First, choose when you expect arrears to be paid – this sets how many retrospective months accumulate from January 2026. Second, pick your pay level and current basic pay from the 7th CPC pay matrix (or switch to pensioner mode and enter your basic pension). Third, search your city for HRA and TA. Fourth, set the fitment factor. The calculator then projects each month’s 7th and 8th CPC salary and adds up the differences to give your total estimated arrears, with a full month-by-month table.

8th pay commission arrears kab milega (when will you get it)?

The most common question is 8th pay commission arrears kab milega – when will the arrears actually be paid? The honest answer: not immediately. The 8th CPC was constituted on 3 November 2025, and its report is expected around 2027 under the usual 18-month mandate. After the report, the government needs to accept it, the Cabinet must approve, and departments must fix pay – typically another 6 to 12 months. A realistic payment window is late 2027 to 2028. Whenever it happens, arrears are paid retrospectively from 1 January 2026, so no month is lost – a longer delay simply means a larger arrear lump sum.

Pay CommissionEffectiveImplementedRetro months
6th CPCJan 2006Sep 2008~32 months
7th CPCJan 2016Jul 2016~6 months
8th CPC (expected)Jan 20262027–202818–30 months

8th pay commission arrears calculator for pensioners

Pensioners and family pensioners are equally entitled to 8th CPC arrears, which is why this doubles as an 8th pay commission arrears calculator for pensioners. Switch to pensioner mode and enter your current basic pension. The revised pension is your basic pension multiplied by the same fitment factor, with Dearness Relief (DR) resetting and rebuilding just like DA. Pensioners do not receive HRA or TA, so the pension arrear is the month-by-month difference between the revised and current basic pension plus DR. Pre-2026 retirees get this revision; the pension disbursing bank or treasury credits the arrears automatically once orders are issued.

Tax on arrears and Section 89(1) relief

Arrears are taxable in the year you receive them, not the years they relate to. Receiving 18–30 months of arrears in one year can push you into a higher slab. Section 89(1) relief, claimed by filing Form 10E online before your income tax return, lets you compute tax as if the arrears had been spread across the years they pertain to – usually reducing the tax. File Form 10E first, then claim the relief in your ITR. Employees whose income stayed below the rebate threshold in those years may owe little or no extra tax and so see little relief.

Frequently asked questions

When will 8th pay commission arrears be paid (kab milega)?

The 8th CPC was constituted in November 2025 and its report is expected around 2027. After acceptance, Cabinet approval and pay fixation, a realistic arrear payment window is late 2027 to 2028. Arrears are paid retrospectively from the 1 January 2026 effective date, so a delay only increases the lump sum.

How are 8th CPC arrears calculated?

Monthly arrear = 8th CPC monthly gross minus current 7th CPC monthly gross. The 8th CPC gross uses basic times the fitment factor, a reset-and-rebuilding DA, revised HRA and scaled TA. Total arrears are the sum of these monthly differences across every retrospective month from January 2026 to actual payment.

Will pensioners get 8th CPC arrears?

Yes. Pensioners and family pensioners receive arrears at the same fitment factor applied to their basic pension, with DR resetting and rebuilding. The arrear period is the same as for serving employees, and the pension disbursing authority credits it automatically once revision orders are issued.

How much arrears will a Level 7 employee get?

For Level 7 (current basic around 44,900) in an X-class city at a 1.92 fitment factor, the monthly difference is roughly 23,000 to 27,000 and grows over time. Over about 24 months this totals approximately 5.6 to 6.3 lakh in gross arrears. Use the calculator with your exact basic and city for a precise figure.

Why does the monthly arrear grow over the period?

Because the 7th CPC DA keeps rising every six months while the 8th CPC starts from a reset DA that climbs more slowly, and 8th CPC HRA steps up at DA thresholds. So the gap between the two salaries widens month by month, making later months worth more in arrears than earlier ones.

Is tax deducted on 8th CPC arrears?

Yes, arrears are taxable in the year of receipt. However, Section 89(1) relief, claimed by filing Form 10E online before your ITR, lets you spread the arrears notionally across the years they pertain to, usually lowering the tax. File Form 10E first, then claim the relief in your return.