Guide · Retirement & Pensions
SIPP vs LISA: Which is Best for Retirement?
Compare the tax relief of a Self-Invested Personal Pension against the 25% government bonus of a Lifetime ISA.
How the bonuses compare
Both accounts give you free money from the government, but the mechanics differ slightly.
The LISA Bonus: You pay in from your net (after-tax) income. The government adds a 25% bonus on contributions up to £4,000 per year. So if you pay in £4,000, the government adds £1,000, leaving you with £5,000.
SIPP Tax Relief: You also pay in from your net income. The government automatically adds 20% basic rate tax relief to the pension. Mathematically, a 20% tax relief works out exactly the same as a 25% bonus. If you pay in £4,000, the government adds £1,000, leaving you with £5,000.
The difference is for Higher Earners
If you pay 40% higher rate tax, you can claim back the remaining 20% tax relief on your SIPP via a tax return. If you reinvest that tax rebate into the pension, the SIPP will grow significantly faster than a LISA for the same out-of-pocket cost.
Tax on Withdrawal
The biggest difference between the two accounts is what happens when you finally access the money.
| Account | Access Age | Tax on Withdrawal |
|---|---|---|
| LISA | Age 60 | 100% Tax-Free |
| SIPP | Age 55 (57 in 2028) | 25% Tax-Free, 75% Taxed as Income |
Because a LISA is entirely tax-free on withdrawal, it usually beats a SIPP for basic rate taxpayers. A basic rate taxpayer gets the same upfront boost in both accounts, but suffers tax on the way out of the SIPP.
When to choose a SIPP
- You are a higher or additional rate taxpayer: The extra tax relief you can claim back makes the SIPP a mathematical winner, even after accounting for tax on withdrawal.
- You get employer contributions: Always max out your employer match in your workplace pension before considering a SIPP or a LISA.
- You want to invest more than £4,000 a year: The LISA limits you to £4,000 a year. The SIPP allows up to £60,000 per year.
- You are over 40: You cannot open a new LISA once you turn 40.
Frequently asked questions
Is a SIPP or a LISA better for a basic rate taxpayer?
For a basic rate taxpayer, a LISA is usually better or equal. Both give you an effective 25% boost on your contributions. However, a LISA is 100% tax-free when you withdraw at age 60, whereas a SIPP is only 25% tax-free (the rest is taxed as income).
Is a SIPP or a LISA better for a higher rate taxpayer?
A SIPP is almost always better for a higher or additional rate taxpayer. The 40% or 45% upfront tax relief heavily outweighs the tax you might pay when withdrawing the money in retirement.
Can I have both a SIPP and a LISA?
Yes. You can pay into both in the same tax year. You can put up to £4,000 per year into a LISA and up to £60,000 (or 100% of your earnings, whichever is lower) into a SIPP.
What happens if I need to withdraw early?
A LISA allows early withdrawals but applies a 25% penalty charge, meaning you get back less than you put in. A SIPP is locked entirely until age 55 (rising to 57 in 2028). Neither is suitable for emergency funds.