Most civil servants pay a member contribution of between 4.6% and 8.05% of their pay into alpha, the main Civil Service pension. That's lower than many other public-sector schemes, and the calculator above shows its effect on take-home pay. What it doesn't show is how much pension each year buys, or that new joiners have a choice. This guide covers both.
What alpha builds each year
alpha is a career-average defined-benefit scheme. Each year you build a pension of 2.32% of that year's pensionable earnings. That amount is increased each year in line with consumer prices while you're working, and paid as an inflation-linked income for life from your normal pension age, which matches your State Pension age.
A civil servant on £45,000 builds a pension of about £1,044 a year for that year's work, at a contribution rate of 5.45%, about £2,453 a year before tax relief. Twenty years at that level would build a pension of about £20,880 a year in today's money, before any pay rises. The employer pays 28.97% of your pay on top, about £13,037 a year at this salary. That sum is part of your pay package even though it never appears on a payslip.
The partnership alternative
New joiners can choose the partnership pension account instead of alpha. It works like a private-sector pension: the employer pays an age-related percentage of your salary into an invested pot, and matches some of your own contributions up to a limit. You choose the investments and take the risk. The pot can be passed on more flexibly, but it doesn't guarantee a level of income.
For most people planning to stay in the Civil Service for more than a few years, alpha is the more valuable option, because a guaranteed, inflation-linked income is expensive to buy any other way. Partnership can suit people who expect to leave within a short time, or who value flexibility over certainty. You normally have to make the choice when you join, so it's worth understanding both before the deadline.
Options civil servants often miss
alpha lets you buy extra pension, either as a one-off payment or by regular deductions, which can be useful in years when you have spare income or want to make up for a career break. You can also pay extra to reduce your pension age, an option called Effective Pension Age, so you can retire earlier without the usual reduction for early payment. Both cost real money, but both are bought through the net-pay arrangement, so you get tax relief at your highest rate automatically.
Comparing a private-sector offer
When a private-sector job offers more money, compare the whole package. A private employer typically pays a few percent of salary into a pension pot; the Civil Service pays 28.97% into a guaranteed scheme. On £45,000 the difference in employer contributions alone can be more than £10,000 a year. A private role needs to pay noticeably more just to stand still once that's counted, before allowing for the security of a defined-benefit pension.
Moving between departments
Moving to another department or agency doesn't usually affect your alpha membership. Your service continues and the pension you've built keeps growing. Moves to arm's-length bodies or public corporations need more care, because not all of them participate in the Civil Service schemes. Before accepting a role outside a core department, ask whether it is a participating employer. If it isn't, your alpha pension becomes a deferred pension, and you'd join whatever scheme the new employer offers, which may be far less generous.
Next steps
Enter your pensionable pay above to see your contribution and take-home pay for 2026/27. To compare alpha with other public-sector schemes, use the public sector take-home pay calculator, and to put a private offer next to your current role, use the compare two salaries calculator.