Planning for retirement deserves careful thought. After all, your future lifestyle depends on it. But many people find it confusing, especially when choosing between a SIPP and a Lifetime ISA (LISA).
Both give you a government top-up, but they work very differently. In this guide, we compare them for retirement saving, with the rules for 2026/27.
Update, 2026: the government plans to replace the Lifetime ISA with a new First Time Buyer ISA, expected around April 2028. The new product would only be for buying a first home, not for retirement. You can still open a LISA until then, and existing LISA holders can keep paying in and use it for retirement from age 60.
When investing, your capital is at risk.
What is a SIPP?
A SIPP is a self-invested personal pension. It’s a pension you manage yourself, choosing from a wide range of investments such as funds, ETFs and shares. Providers include Interactive Brokers, Saxo and Moneyfarm.
What is a Lifetime ISA?
A Lifetime ISA is a type of ISA designed to help you buy your first home or save for later life. It can be a cash or stocks and shares account. The key rules:
- You must be 18 to 39 to open one.
- You can pay in up to £4,000 a year until you’re 50. This counts towards your £20,000 ISA allowance.
- The government adds a 25% bonus, up to £1,000 a year.
- You can withdraw without penalty to buy a first home worth up to £450,000, from age 60, or if you’re terminally ill.
- Any other withdrawal costs 25% of the amount you take out. That wipes out the bonus and takes some of your own money too.
Not every platform offers a stocks and shares Lifetime ISA. AJ Bell is one that does. Check before you open an account.
The key differences
| SIPP | Lifetime ISA | |
|---|---|---|
| Government top-up | Tax relief at your income tax rate: 20%, 40% or 45% | 25% bonus |
| Yearly limit | Up to £60,000 or 100% of your earnings, whichever is lower | £4,000 |
| Earliest access | 55, rising to 57 from 6 April 2028 | 60 (or for a first home) |
| Tax on withdrawals | 25% tax-free, the rest taxed as income | Tax-free |
| Employer contributions | Possible (in a workplace pension) | No |
Which gives you more money?
Let’s compare what £800 of your own money becomes, ignoring investment growth.
With a LISA, £800 plus the £200 bonus makes £1,000, and you can take it all out tax-free at 60.
With a SIPP, the result depends on your tax rate now and in retirement:
| Your situation | Pot | After tax on withdrawal |
|---|---|---|
| LISA, any taxpayer | £1,000 | £1,000 |
| SIPP: basic rate now, no tax in retirement | £1,000 | £1,000 |
| SIPP: basic rate now, basic rate in retirement | £1,000 | £850 |
| SIPP: higher rate now, basic rate in retirement | £1,333 | £1,133 |
| SIPP: higher rate now, higher rate in retirement | £1,333 | £933 |
How we got these figures: a basic-rate taxpayer’s £800 becomes £1,000 with tax relief. A higher-rate taxpayer can claim back extra relief, so £800 of their own money buys about £1,333 of pension. On withdrawal, 25% is tax-free and the rest is taxed at the rate shown.
What does this tell us?
- Basic-rate taxpayers usually do better with a LISA, because most people pay some tax on their pension in retirement. The full new State Pension is £12,547.60 a year in 2026/27, which uses up almost all of the £12,570 personal allowance.
- Higher-rate taxpayers who expect to pay basic rate in retirement usually do better with a pension.
Other things to consider
- Employer contributions: if your employer matches your pension contributions, that’s free money. Always get the full match before using a LISA. Salary sacrifice can also save you National Insurance.
- Contribution limits: a LISA is capped at £4,000 a year. Pensions allow much more.
- Access: you can reach a pension at 57 (from April 2028), three years before a LISA. But taking money from a LISA early costs a 25% charge.
- Inheritance tax: from April 2027, most unused pensions will count towards your estate for inheritance tax. ISAs already do.
- Future changes: both depend on government policy. The LISA is due to be replaced for new savers, and pension rules change often.
Summary
For most people, the best approach is to use both: get your full employer pension match first, then consider a LISA if you’re eligible and a basic-rate taxpayer, and add more to your pension if you’re a higher-rate taxpayer.
To learn more, read our guide to pensions.
This article is for information only and is not financial advice. If you’re unsure, speak to a regulated financial adviser.
Pedro is passionate about finance, marketing, and technology. He is a growth manager at several online projects and a former digital marketer for a fintech company.
Brilliant article! I am pretty sure that a combination of the two is appropriate. You contribute the minimum amount that induces the employer to match your contribution. In addition you max out the LISA limit every year. An additional consideration is that your pension may not be taxable inheritance if you nominate someone else to receive it. So if you want to limit taxes in retirement invest in LISA and ISA and leave your pension pot to the grandkids (which presumably will have no other income in their teens :D) so that they can go to college tax free. Seems to be an optimal solution if you derive utility from your grandkids’ wellbeing and will help your kids immensely too.
Excellent point on the tax aspect. Its great that we here in the UK get so many ways of holding our assets. If you just take the time to read and understand the various tax wrappers available, you could go your entire life saving and investing tax free.