How a government pension is worked out, and commutation
How a central government pension is worked out from last basic pay, how Dearness Relief is added, how commutation turns part of it into a lump sum, and whether commuting makes sense for you.
Last reviewed · 1,230 words
In short
- Basic pension is 50 percent of last basic pay, or of the last ten months' average, whichever is higher.
- You need at least ten years of qualifying service, and the minimum pension is ₹9,000 a month.
- On a last basic of ₹80,000 at 63 percent Dearness Relief, the pension before commutation is ₹65,200 a month.
- Commutation sells up to 40 percent of basic pension for a lump sum. At 60, the factor is 8.194, and the cut ends after 15 years.
- These rules cover the old pension under the CCS rules. NPS and UPS work differently, and state rules can vary.
A pension is the largest financial asset many government employees have, and yet it is often only understood in the final months of service. The rules are in fact quite simple, and most of the decision comes down to one choice, how much to commute. This page explains how the monthly amount is set, what Dearness Relief adds, what you receive for commuting, and how to weigh the lump sum against a lower monthly pension. It covers the defined-benefit pension under the Central Civil Services rules, which applies to most central staff who joined before 2004.
Who this applies to
The old pension system applies to central government employees who joined before 1 January 2004, and to certain others who were allowed to stay in it. Staff who joined later are in the National Pension System, which depends on contributions and market returns, as the NPS calculator shows. The Unified Pension Scheme is a separate option for central NPS staff, with its own rules on assured payouts.
State government pensions usually follow a similar pattern, although the details and some state choices between old and new systems differ, so check your own rules.
The basic pension
The formula is simple:
basic pension = 50% of last basic pay or last 10 months' average, whichever is higher
Basic pay here is the pay in your pay matrix level, without allowances. For a last basic of ₹80,000, with a lower ten-month average, the basic pension is ₹40,000.
The average can matter if your pay fell near the end of your service, but this is rare. Usually the last basic is higher, because an increment comes late in service. Some rules on who counts an increment after retirement have changed through court judgments, so a retiree in that position should check the latest orders.
You need at least 10 years of qualifying service to get a pension. Since the 6th Pay Commission changes, full pension no longer needs 33 years. At 10 years or more, the 50 percent rule applies. The minimum pension is ₹9,000 a month, and the calculator lifts your figure to that if needed.
Dearness Relief
Pensioners get Dearness Relief at the same rate as serving staff get Dearness Allowance. So at 63 percent:
Dearness Relief = basic pension × DR rate ÷ 100
On ₹40,000, that is ₹25,200, which makes ₹65,200 a month before commutation. Each time the rate rises, this amount does too. The DA calculator has the latest rate.
Dearness Relief is always calculated on the full basic pension. It is not cut when you commute, and that is an important detail in the next section.
| Last basic | Basic pension | DR at 63% | Pension without commutation |
|---|---|---|---|
| ₹35,400 | ₹17,700 | ₹11,151 | ₹28,851 |
| ₹56,100 | ₹28,050 | ₹17,672 | ₹45,722 |
| ₹80,000 | ₹40,000 | ₹25,200 | ₹65,200 |
| ₹1,23,100 | ₹61,550 | ₹38,777 | ₹1,00,327 |
Commutation
Commutation means selling part of your pension for a lump sum now. You can commute up to 40 percent of the basic pension. The sum is:
lump sum = commuted pension × 12 × commutation factor
The factor comes from a table set by age on your next birthday. For someone retiring at 60, whose next birthday is the 61st, it is 8.194.
With a basic pension of ₹40,000 and full 40 percent commutation:
- Commuted amount: ₹16,000 a month.
- Lump sum: 16,000 × 12 × 8.194 = ₹15,73,248.
- Reduced basic pension: ₹24,000.
- Dearness Relief, still on ₹40,000: ₹25,200.
- Monthly pension: ₹49,200.
The commuted part is restored after 15 years, so at 75 the pension goes back up, to ₹65,200 at today's rate of relief, and more if the rate has risen. This means the true cost of commuting is ₹16,000 a month for 15 years, or ₹28,80,000 in all, for a lump sum of ₹15,73,248 on day one.
Should you commute?
There is no single right answer, but here are some useful ways to think about it.
Compare the return. Dividing ₹15,73,248 by ₹16,000 gives about 98 months, so you receive back the lump sum in a little over eight years of the cut. After that, for nearly seven more years, the deduction continues. Over the full 15 years, this works out at roughly 9 percent a year, before counting tax or any effect of living longer or shorter than that.
Compare with a safe investment. If the lump sum earned 7 percent in a fixed deposit, it would give about ₹9,177 a month, against the ₹16,000 you give up, but you still have the capital at the end. If your own money would earn more than the implied rate, safely, commuting can make sense. If you would spend it, it probably does not.
Think about tax. The commuted lump sum is free of tax for government employees, while the pension itself is taxed as salary. Giving up taxable income for a tax-free lump sum makes commuting a little more attractive, especially in a higher slab.
Think about what you need it for. A debt at 10 percent or more, a child's wedding or a medical reserve can justify it. Commuting just because everyone does, and leaving it idle in a savings account, does not.
Think about health and family. If you do not expect to live 15 years, commuting gives your family more, because any cut ends with your death. If you do, a higher pension is a hedge against living longer. Family pension is usually not reduced by commutation.
The calculator lets you set the percentage, so try 0, 20 and 40 percent and compare.
Family pension and other benefits
Family pension. After a pensioner's death, the eligible family member usually gets 30 percent of the last basic pay plus Dearness Relief. On a last basic of ₹80,000, that is ₹24,000 before relief. Enhanced rates apply for a period in some cases.
Additional pension. Very old pensioners receive more, starting with an extra 20 percent of basic pension from age 80, and rising in steps after that.
Gratuity. Retirement gratuity is a separate lump sum, as the gratuity calculator shows.
Leave encashment. Earned leave up to a limit is paid as a lump sum at retirement.
The Pay Commission. A new pay commission can revise pensions too, as the 8th Pay Commission calculator explains.
Three commutation choices compared
On a basic pension of ₹40,000 at 63 percent relief, with a factor of 8.194:
| Commuted | Lump sum | Monthly pension for 15 years | Monthly pension after |
|---|---|---|---|
| 0% | ₹0 | ₹65,200 | ₹65,200 |
| 20% | ₹7,86,624 | ₹57,200 | ₹65,200 |
| 40% | ₹15,73,248 | ₹49,200 | ₹65,200 |
Applying on time
Pension papers should be started well before retirement. The central system has moved to online forms such as Bhavishya, and pension payment orders go through your bank. Keep records of your service, including your date of joining and any breaks. Each November, most pensioners must give a life certificate, which can be done digitally through Jeevan Pramaan, or at the bank.
What this calculator assumes
- It covers the defined-benefit pension under the central rules, for 10 or more years of qualifying service.
- Basic pension is the larger of half the last basic or half the ten-month average, with a minimum of ₹9,000.
- The commutation is capped at 40 percent, and the factor defaults to 8.194, for retirement at 60.
- Dearness Relief stays at the rate you enter, including in the figure for after 15 years.
- Tax, additional pension and family pension are not included. Your pension payment order is the final figure.