ISA or pension – which helps most for retirement?

01.07.2026 - last updated

ISAs and pensions come with worthwhile tax advantages to help boost your retirement money. There are plenty of good reasons to choose both. It depends on your situation, especially what stage you're at in your retirement journey.

 

ISA vs pension: when you’re saving for retirement

Here’s a quick comparison for those of you busily squirreling money away.

Get the advantage
Both ISAs and pensions come with tempting tax advantages. 

  • With a pension, you can get an extra 20% of what you pay in added from HMRC. If you’re a higher- or additional-rate taxpayer you can receive more tax relief on eligible contributions. The higher- or additional-rate relief is typically claimed back rather than added directly to the pension. These rates are different in Scotland.
  • With an ISA, the money you pay in is usually from income that's already been taxed. The advantages apply when you withdraw money as there's no income tax or capital gains tax to pay. But keep in mind that tax requirements could change in the future.

If you’re still saving, earning money and paying any income tax – pensions would likely have the edge because they can give you more tax advantages.

Reached your limit?

  • You can save up to £20,000 each tax year in an ISA.
  • You can get tax relief on up to £60,000 or 100% of your earnings (whichever is lower) in a pension, with the possibility to carry forward unused allowances. Anything over these limits will be subject to tax. 

The government allows you to save more money, with great tax incentives, in a pension.
 
Feeling flexible?
A pension is locked away until you’re 55 (rising to 57 from April 2028). You can take money out of an ISA at any time.

An ISA offers more flexibility than a pension, particularly while you’re working and before you reach the age you’re allowed to access your pension.

What are you invested in?
The Stocks & Shares ISA and pension we offer give you the opportunity to invest in the same set of four ready-made, risk-ranked investment portfolios. It’s just through a different type of account. 

Our ISA and pension can invest in the same portfolios, so it’s a tie.

Important: Any money invested in a pension or stocks & shares ISA could rise and fall in value. Returns are not guaranteed – you may get back less than you put in.

Will your employer chip in?
There’s a great tradition of workplace pensions in UK.  Some employers offer workplace ISAs, but this is not as common.

Your employer is more likely to contribute to your pension.

This is the moment to imagine your future retirement. Our Retirement Planner can help you explore how different savings products can affect it. 

 

ISA vs pension: when you’re getting ready to retire

You’ll need to turn your ISA and pension savings into spending money. Think of it as changing gear.

Planning income – plot a tactical take out

  • You can usually take out up to 25% of your pension account tax free from age 55. After that you’ll pay tax at the usual rate, which may be lower if you’re not working as much. You don’t have to take your tax-free lump sum straight away, or all at once. 
  • One approach is to put as much money as you can into your pension while you’re still earning and potentially paying higher rates of tax. Then withdraw it soon after as tax-free cash, or when you’re paying a lower tax rate.  
  • If you’d like to buy an annuity, factor this into your pension lump-sum withdrawal planning. 
  • You won’t have to pay tax on money you take out of an ISA.

By taking money out of your ISAs and pensions in a tactical way, you could reduce your tax bill over the course of your retirement.
 
This is a key moment in your financial life as you prepare to change gear. We suggest you take Retirement Income Advice.

 

ISA vs pension: when you’re spending your savings

After all the hard work, serious saving and thorough preparation, you’ll be ready to really enjoy the financial rewards. 

Enjoy your savings
Just as during your working life, your tax bill will be based on your total annual income (not including money you take out of ISAs). 

Our Retirement Planner can take into account any sources of income you might have. This will help if you want to review your retirement income plans in line with any life changes like reducing work, downsizing, or needing care.

Both ISA and pension money that’s giving you a better, and more tax-efficient, later life is a winner. Enjoy!

Passing on ISAs and pensions
Your legal spouse or civil partner can inherit your money and your ISA allowance, without paying tax.

Money you leave to anyone else will be considered part of your estate when calculating inheritance tax.

At the moment, anyone who inherits your pension pot doesn’t have to pay inheritance tax on it. And if you die before age 75 they won’t have to pay income tax when they take money out, up to certain limits. However, the government has announced that pensions will be subject to inheritance tax from April 2027.

There’s no clear winner, and it’s a changing picture.

ISA vs pension – which is best?

It depends what stage you're at. Remember that savers eventually become retirement income planners and spenders. So make the most of your savings across your lifetime with both pension and ISA savings.

If you’re still saving, pensions win for their superior tax advantages and possible employer contributions, unless you want more flexibility.

If you’re spending, you’ll enjoy not paying tax when you take out your ISA savings.

If you’re thinking of leaving a legacy, those inheriting might rather be left pension money under current tax rules.

What next?

Retirement Planner

Our Retirement Planner can help you understand how affordable your retirement could be, whether you invest through ISAs or pensions. You can put in details of all your savings and income sources (and your partner’s) and try different scenarios. The Planner runs hugely complex calculations to help you get the most from your retirement savings without paying more tax than you have to.

Get in touch

If you are a customer of ours, you can register or log in to Destination Retirement now to explore your options.

Or why not top up your ISA or pension? Just give us a call.