Is the state pension taxable? How pension income is taxed

The short answer, and why people get caught out

The state pension is taxable income, but it is paid without any tax deducted at source. That single fact explains most of the confusion. Because no tax comes off the state pension when it lands in your bank account, the tax due on it has to be collected somewhere else. HMRC usually does this by reducing the tax code applied to another income you have, such as a workplace or private pension, or earnings if you are still working. Where the state pension is your only income and tax is due, HMRC may use Simple Assessment, which sends a calculation and a payment deadline rather than requiring a tax return. In other cases Self Assessment is used.

This is why a pensioner with a modest private pension can find an unexpectedly large amount of tax taken from it. The private pension is not being taxed more heavily in its own right. It is carrying the tax on the state pension as well, because the state pension itself is paid gross. The effect is most visible in the tax code. A code that looks lower than you would expect is often the state pension being collected through it. Understanding that the two incomes are added together to establish your total taxable income is the key to reading your payslip correctly.

What counts as taxable pension income, in a table

Not all pension related money is treated the same way. The table below sets out the main types of income you might receive in retirement, whether each is taxable, and how any tax is collected. Pension income is added to your other taxable income to establish your total, and income tax is payable on the total above the personal allowance. National Insurance is not payable on pension income, and it is not payable on earnings once you reach state pension age.

Two rows in that table are worth pausing on. The 25 percent tax-free amount from a defined contribution pot is not taxable when taken, but the remainder is taxable as income when it is drawn. The tax-free amount that can be taken from pensions is subject to an overall lump sum allowance. And ISA withdrawals sit outside the income tax system altogether, so they do not use up any of your personal allowance. Keeping those distinctions clear makes it easier to see which parts of your retirement income feed into the tax calculation and which do not.

The frozen allowance and the rising pension

The personal allowance is 12,570 pounds and has been frozen at that level since April 2021. Each April the full new state pension is uprated under the triple lock, which increases it by the highest of earnings growth, CPI inflation or 2.5 percent. The allowance does not move with it. The gap between the two therefore narrows every year. For most people with other income this changes little in practice, because their total income was already above the allowance. The group that feels it first is those whose only income is the full new state pension.

Where the full new state pension exceeds the personal allowance and a person has no other income, the excess becomes taxable, and the amount of tax due would initially be small. It is collected through Simple Assessment rather than through a tax code, because there is no other income for a code to attach to. It is worth being measured about this. The sums involved are small at first, and it applies to the full new state pension rather than to everyone, since many people receive less than the full amount. The direction of travel, however, is clear: a frozen allowance and a rising pension will bring more people into tax over time.

Working out what you will actually pay

The arithmetic is straightforward once you know the two numbers that matter: your total taxable income and the personal allowance of 12,570 pounds. Income tax is payable on the total above the allowance, and pension income is added to other taxable income to establish that total. Take someone on the full new state pension and nothing else. If the full new state pension is, say, 11,500 pounds a year, total income is 11,500 pounds, which is below the allowance, so no tax is due. If the full new state pension rises to 12,900 pounds, total income is 12,900 pounds, the taxable amount is 330 pounds, and the tax at the basic rate is 20 percent of that, or 66 pounds for the year.

Now add a workplace pension of 6,000 pounds a year to a full state pension of 12,900 pounds. Total income is 18,900 pounds. The taxable amount is 18,900 pounds minus 12,570 pounds, which is 6,330 pounds. At the basic rate of 20 percent, the tax is 1,266 pounds for the year. In practice this is usually collected by reducing the tax code on the workplace pension, so the state pension continues to arrive untouched while the workplace pension carries the whole bill. Finally, take someone drawing 15,000 pounds a year from a defined contribution pot, with no state pension yet. Total income is 15,000 pounds, the taxable amount is 2,430 pounds, and the tax at the basic rate is 486 pounds. Scotland sets its own income tax rates and bands on non-savings, non-dividend income, so the tax due on pension income differs for a Scottish taxpayer, while the personal allowance is set UK-wide.

The 25 percent tax-free amount and the trap that follows

Normally 25 percent of a defined contribution pension pot can be taken free of income tax, and the remainder is taxable as income when it is drawn. Income drawn from a defined contribution pot beyond the tax-free element is taxed as income through PAYE. That much is well known. The trap lies in how the first flexible withdrawal is taxed. A first flexible withdrawal from a pension is frequently taxed on a month 1 or emergency basis, which treats the payment as though it were repeated every month and can result in far too much tax being deducted.

The practical effect is that a withdrawal which should attract a modest amount of tax can instead have thousands deducted. The money is not lost. Where too much tax has been deducted on a pension withdrawal, the overpayment can be reclaimed from HMRC, and HMRC provides specific forms for reclaiming it. The difficulty is timing and cash flow: people who were expecting the full amount find a smaller sum in their account and have to wait to recover the difference. It is a common experience on a first flexible withdrawal, and it is worth knowing about before the money is requested rather than after.

How to check and how to fix it

Check the tax code on each pension payslip. A reduced code is usually the state pension being collected through that pension, and the code itself will reflect the amount of state pension HMRC expects you to receive. If the code looks wrong, contact HMRC with the figures. If too much has been paid, a repayment is due. A P800 tax calculation is issued where HMRC calculates that too much or too little tax has been paid for a tax year, and it will state what happens next. A Simple Assessment letter works in a similar way, sending a calculation and a payment deadline rather than requiring a tax return. Both carry a deadline, and it is worth diarising it.

Self Assessment is needed in some cases, for example where HMRC cannot collect the tax through a code or where other income falls outside PAYE. If you are unsure which route applies to you, the figures on the letters and payslips are the place to start: total income, the allowance of 12,570 pounds, the taxable amount and the tax deducted. Where those do not reconcile, a query to HMRC is the appropriate step. The marriage allowance lets a person transfer part of their personal allowance to a spouse or civil partner in some circumstances, which can change the calculation for a couple, so it is worth checking whether it applies.

Source: GOV.UK: tax when you get a pension.

Related coverage on Kael Tripton: Personal Allowance Stays at £12,570: What the Freeze Costs You in 2026-27, What Is the personal allowance? UK Meaning Explained, Triple lock: what Tuesday's earnings figure means for the 2027 state pension, State pension 2027 rise: how the triple lock sets next April's increase and what the forecasts show, Frozen Income Tax Thresholds UK: Fiscal Drag Explained.

Frequently asked questions

Is the state pension taxable?

Yes. The state pension is taxable income. It is paid without any tax deducted at source, so the tax due on it is collected through other means, such as a reduced tax code on another income, Simple Assessment or Self Assessment.

Why do I pay tax on my private pension when my state pension is below the allowance?

Because pension income is added together to establish your total taxable income. If the state pension plus the private pension exceeds the personal allowance of 12,570 pounds, tax is due on the excess. HMRC usually collects it by reducing the tax code on the private pension, so that pension appears to carry the whole bill.

What is the personal allowance and has it changed?

The personal allowance is 12,570 pounds. It has been frozen at that level since April 2021. The full new state pension is uprated each April under the triple lock, so the gap between the two narrows over time.

What happens if the full new state pension is more than the personal allowance?

Where the full new state pension exceeds the personal allowance and there is no other income, the excess becomes taxable. The amount of tax due would initially be small, and it is collected through Simple Assessment rather than through a tax code.

Is the 25 percent tax-free lump sum really tax free?

Normally 25 percent of a defined contribution pension pot can be taken free of income tax, and the remainder is taxable as income when it is drawn. The tax-free amount that can be taken from pensions is subject to an overall lump sum allowance.