Pension on Last Pay or Average of 10 Months: Which Applies to You

The rule in one paragraph

Put simply, Rule 44 of the CCS (Pension) Rules, 2021 gives anyone who retires with ten or more years of qualifying service half of one of two figures: the last basic pay, or the basic pay averaged over the final ten months. The retiree gets the half that is larger. "Emoluments" is defined in Rule 31 and means, in plain terms, the basic pay you were drawing immediately before retirement. "Average emoluments" is defined in Rule 32 and means the average of the basic pay you drew over the last ten months of service. The office has no discretion to pick one; it must compute both and give you the higher.

This "beneficial calculation" is not new to the 2021 Rules. Until the Sixth Pay Commission, central pensions were worked only on the ten-month average, and the full 50 per cent also needed 33 years of service. The orders issued in September 2008 for those retiring from 1 January 2006 brought in the last-pay alternative and removed the link to 33 years, and the 2021 Rules carried this forward. If you retired before 2006, your original pension was worked on the average alone, and what you draw today depends on the later revision orders; our guide on the concordance tables for pre-2016 pensioners deals with that separately.

Two limits sit around the result. However small your pay, the basic pension cannot fall under Rs 9,000; however senior you were, it cannot go above Rs 1,25,000, that being half of Rs 2,50,000, the top of the present pay matrix. Dearness relief, at whatever rate is current, is paid over and above. Someone who leaves with under ten years of qualifying service gets no monthly pension from these rules at all, only a lump-sum service gratuity.

What counts as emoluments for the pension formula

Rule 31 ties emoluments to "basic pay" as defined in FR 9(21)(a)(i). Under the Seventh Pay Commission that is the figure in your cell of the pay matrix, including any MACP or promotion fixation. Stagnation increments count. Non-practising allowance paid to medical officers in place of private practice counts too. Almost everything else on your pay slip does not: dearness allowance, house rent allowance, transport allowance, deputation allowance, special duty allowance, risk or hardship allowances, and the many department-specific allowances are all outside the pension formula.

Several situations at the end of service are dealt with by specific sub-rules. If you were on leave with salary, or on extraordinary leave on medical certificate, or under a suspension that ended in reinstatement without forfeiture, the pay you would have drawn but for the absence is taken. An increment that fell due during leave and was not withheld counts even if you never actually drew it. If you were officiating in a higher post and went on leave, the higher pay counts only if it is certified that you would have continued in that post. If you were on deputation to a State Government or on foreign service, the pay you would have drawn in your central post is used, not the deputation pay.

Two newer provisions matter a great deal in practice. Rule 31(10) counts a notional pay increase given after retirement with effect from a date while you were in service, either through a retrospective pay revision or a retrospective promotion after a review DPC, exoneration or court order. And Rule 31(11) protects the family where an employee dies while undergoing a penalty that temporarily reduced pay: the pay is taken as if the penalty had not been imposed.

How average emoluments are worked out over the last ten months

Rule 32 takes the basic pay actually drawn in the last ten months of service, adds it up, and divides by ten. Where you retire mid-month, the months are counted as fractions with every month treated as having 30 days, February included. The rule's own illustration uses a retirement on 16 July, where July counts as 16/30 of a month and the matching part of the starting month as 14/30.

The adjustment that confuses people most is for unpaid leave and suspension. If any part of the last ten months was extraordinary leave not counted as service, or suspension not treated as duty, that period is simply left out and an equal period from just before the ten months is brought in. So the average always covers ten months of countable service, even if the calendar period it spans is longer. Since the earlier months usually carry lower pay, this substitution tends to pull the average down, and last pay then wins.

Leave with salary is not left out. For those months the pay you would have drawn is used, so earned leave or half pay leave in your last year does not damage your pension. Increments that fell due during such leave are counted. A retrospective notional increase that covers part of the ten months is counted for those months under Rule 32(5).

A worked comparison: when last pay wins

When the 10-month average beats last pay

The average helps only where your basic pay in the last ten months was at some point higher than on your final day. In a normal career, pay only rises, so last pay comes out ahead. The cases where it does not are worth knowing because offices sometimes compute only the last-pay figure and stop there.

The most common one is reversion. An employee working on ad hoc promotion in a higher level may be reverted when the regular DPC panel does not include him, or when the ad hoc arrangement ends. If that happens within the last ten months, the months on the higher pay lift the average above the reduced final pay. A second case is where pay was re-fixed downwards in the final months to correct an earlier fixation error, though any recovery and the protection in Rafiq Masih then become a separate issue. A third is where a person came back from a post carrying a higher basic pay, such as certain absorptions or re-fixations on repatriation, and the parent pay is lower.

Penalties need a closer look. The minor penalty of reduction to a lower stage under Rule 11(iii)(a) of the CCS (CCA) Rules is imposed expressly "not adversely affecting" pension, so the office should not let it lower your pension at all. A major penalty of reduction under Rule 11(v) is different and can affect pay at retirement; the beneficial average may then soften the blow. If you are unsure which penalty you received, read the operative paragraph of the order closely.

A worked comparison: when the average wins

Checking your own pension calculation against last pay

You do not need an accountant for this. You need your last ten pay slips, your retirement date and the PPO or the pension calculation sheet.

1. List basic pay month by month

   Write down only the basic pay from each of your last ten pay slips, going back from the retirement date. Ignore DA and allowances. If you retired mid-month, note the number of days in the first and last months.

2. Mark any unpaid leave or suspension

   If any part of these ten months was extraordinary leave not counted as service, or suspension not treated as duty, strike it out and add the same number of days from just before the period, with the basic pay you drew then.

3. Work out both figures

   Divide the total by ten for the average, then halve it. Halve your final basic pay separately. The higher of the two is your entitlement, rounded up to the next rupee.

4. Compare with the PPO

   The PPO or the pension calculation sheet should show the basic pension. If it is lower than your higher figure, note the difference and which pay the office appears to have used. Check the qualifying service shown as well, since a wrong figure there can matter for gratuity even where pension is at the 50 per cent rate.

5. Write to the Head of Office with your working

   Attach your table and the pay slips, and ask for a revised calculation sheet and a corrected PPO. Ask for arrears of the difference from the date of retirement.

6. Escalate if there is no answer

   If there is no decision in about six months, or a rejection without reasons, the dispute can go to the tribunal under Section 19 of the Administrative Tribunals Act, 1985.

For the wider check of a new PPO, including names, commutation and gratuity, see 12 things to check in your PPO.

Increments, MACP and promotion in the final year

Annual increments fall on 1 January or 1 July. An increment that falls in your last ten months raises last pay more than the average, which is why last pay usually wins. MACP granted in the final year has the same effect, as does a promotion.

A retirement on the last day of June or December once meant losing the increment due the following morning. That changed after the Supreme Court ruled on it in 2023 (the KPTCL case, Mundinamani) and gave further directions in February 2025: the DoPT orders of 14 October 2024 and 20 May 2025 now let a person who served the full year count that one increment notionally, though only for pension. Higher pension under these orders generally runs from 1 May 2023, and for earlier litigants from three years before filing. Whether this notional increment also counts for family pension and commutation is not settled, and a Department of Posts letter of June 2026 suggests it may not count for family pension. Our page on the 30 June and 31 December increment explains where things stand.

Late MACP and retrospective promotions are where pension most often goes wrong. If your MACP or promotion was granted after you retired, with effect from a date while you were in service, Rules 31(10) and 32(5) require the notional pay to be used for pension. Many offices revise pay arrears but forget to send a revised pension case to the PAO. A DoPT memo of November 2018 says retirees given notional promotion through a review DPC get no pay arrears, but the pension should still be revised on the notional pay.

Family pension, gratuity and commutation use different bases

People often expect every retirement benefit to be worked on the same figure. They are not. Family pension under Rule 50 is 30 per cent of emoluments, which means last pay, not the average. The enhanced rate of 50 per cent of last pay applies for a period after the death: ten years for a death in service, and for a pensioner's death, seven years or until the date the pensioner would have turned 67, whichever is earlier. The average never comes into it.

Retirement gratuity is worked on emoluments that include dearness allowance, at one-quarter of emoluments for each completed six-monthly period of qualifying service, subject to a ceiling. Leave encashment is based on basic pay plus DA on the date of retirement. Commutation is a percentage of the basic pension, so whatever error affects basic pension carries into the commuted value as well. Our guide on gratuity formula and ceiling errors covers that calculation.

So if your pension was correctly worked on the average because your pay fell at the end, do not be surprised when the family pension shown in the PPO is 30 per cent of the lower last pay. That is how the rule is written.

Advocate B.K. Singh's two practical tips on the pension formula

Advocate B.K. Singh's first tip is to ask for the pension calculation sheet itself, not just the PPO. The PPO shows the result, while the calculation sheet shows the pay figures and periods the office used. In disputes over the formula, the error is usually visible in one line of that sheet, such as a month of ad hoc pay left out or a period of medical leave wrongly treated as unpaid. Without the sheet, you are arguing about a number without seeing how it was reached.

His second tip is for anyone whose pay changed in the last ten months for any reason other than an increment. Before retirement, not after, write to your office asking it to confirm in writing which pay will be used for pension and why. A letter sent while you are still in service is answered by people who know your file, and an error caught then is fixed in the first PPO instead of through a revision case that can take months.

Railway, postal and defence civilian staff, and those under NPS or UPS

A postman, an MES storekeeper or a clerk in an ordnance depot who is on the old scheme draws pension under the 2021 civil rules, so the explanation above is theirs too. Railwaymen who retire from January 2026 onwards are covered instead by the new railway pension rules of 2026, built on the same idea of comparing last pay with the average; running staff have a pay element of running allowance counted for pension under railway rules, so check the current railway rule numbers before relying on them.

Recruits from 2004 onwards who stayed in the National Pension System will not find this last-pay comparison anywhere in their scheme; what they receive comes from their accumulated corpus and the annuity it buys. The Unified Pension Scheme does use an average, but a different one: twelve months rather than ten, with the assured payout reaching half of that average only at 25 years of service and scaled down for shorter careers from 10 years. Our guide on questions to ask before choosing UPS or NPS deals with that choice. Those brought back to the old scheme through the March 2023 option are under the 2021 Rules like everyone else.

Documents to gather before you query your pension

• Pay slips for the last 12 months of service, so the ten-month window and any substituted period are covered
• Retirement order with the exact date
• PPO, and the pension calculation sheet your office sent to the PAO
• Orders of any ad hoc promotion, reversion, MACP or promotion in your final two years
• Leave orders for any extraordinary leave or medical leave in your last year
• Suspension and reinstatement orders, with the order treating the period, if any
• Any penalty order passed in your last three years of service
• Your Form 6-A acknowledgement from Bhavishya
• Copies of letters you have already sent and any replies

How long a pension formula correction usually takes

Found the error years later? Arrears and time limits

A wrong basic pension repeats every month, so courts treat it as a continuing wrong. That means the claim itself is not barred just because several years have passed. The harder question is how far back arrears can go. For years the answer was about three years before filing, following Union of India v. Tarsem Singh (2008). In September 2026 the Supreme Court in Maya Banerjee v. Union of India declined to apply that cap to a family pension claim and ordered arrears from the date of death with interest. For pay claims, the three-year approach is still widely applied. Treat the position as unsettled and file sooner rather than later; our guide on the three-year limit on pension arrears tracks it.

The protection also runs the other way. Rule 66(2) of the 2021 Rules says a pension, once authorised after final assessment, cannot be reduced to your disadvantage except to correct a clerical error. If the PAO later says the office wrongly used the average and wants to cut your pension and recover the excess, that is a recovery dispute; see recovery from pension.

Where a pension formula dispute is decided

Central civil pensioners, including postal, railway and defence civilian retirees, take a pension calculation dispute to the Central Administrative Tribunal after first asking the department to correct it. The bench is usually the one covering your last office, and a retired person may also file at the bench where he or she now lives. Those who retired from a CAPF, a public sector company or a bank have to approach the High Court instead, and ex-servicemen use the Armed Forces Tribunal.

These cases are mostly arithmetic and documents, and the tribunal often directs the department to re-examine within a fixed time and pay the difference. Where the error lies in qualifying service rather than pay, the argument changes; see qualifying service left out. For the wider route to getting a PPO revised, see our page on correcting the pay shown in your PPO.

What to do this week

Take out your last ten pay slips and the PPO. Make the simple table described above: month, basic pay, any unpaid leave. Work out both figures. If your PPO matches the higher one, you can stop worrying about the formula and check the other entries instead. If it does not, ask your Head of Office for the pension calculation sheet and send your working with a request for revision.

If you are still in service and your pay changed in the last year for any reason other than an increment, write now asking which pay will be used. Keep copies of everything. If your office has refused a correction, or six months have passed without an answer, the papers should be looked at with the PPO correction route in mind. For advice on your pension calculation papers, or for updates on changes in pension rules, contact Advocate B.K. Singh.