Self-employed pensions: why you need one and how to start

Employed workers benefit from auto-enrolment — their employer must contribute at least 3% of qualifying earnings to a workplace pension, and the employee adds 5%. It happens automatically, and most people never opt out. Self-employed workers don't have this safety net. There's no employer contribution, no automatic deduction from your income, and no HR department nudging you to sign up. The result is a massive pension gap. A self-employed person earning £35,000 who doesn't save into a pension from age 25 to 65 could miss out on a pot worth over £400,000 compared to an employed equivalent.

A Self-Invested Personal Pension (SIPP) is the most popular pension choice for self-employed workers. It works like a DIY pension — you choose a provider, set your contribution level, and pick how the money is invested. The biggest advantage is flexibility: you contribute when you can afford to, increase or decrease amounts as your income fluctuates, and choose from a wide range of investments. Providers like Vanguard, AJ Bell, Nutmeg, and PensionBee offer SIPPs with low fees and simple interfaces.

Every pound you contribute to a SIPP gets tax relief at your marginal rate. For a basic rate taxpayer, a £100 pension contribution only costs you £80 — the government adds £20 automatically. Higher rate taxpayers can claim an additional £20 back through their self-assessment, meaning a £100 contribution effectively costs just £60. You can contribute up to £60,000 per year (or 100% of your earnings, whichever is lower) and receive tax relief. If your income varies, you can also carry forward unused allowance from the previous three tax years.

The general guideline is to halve the age you start saving and contribute that percentage of your income. Starting at 30? Aim for 15% of your earnings. At 25? 12.5%. These are rough targets — any amount is better than nothing. If your income fluctuates (as it does for most self-employed people), set a base contribution you can maintain in lean months and top up in good months. Even £100 per month from age 30 could grow to over £100,000 by retirement, assuming 5% annual growth. The key is consistency, not perfection.

The biggest barrier to pension saving for self-employed workers is irregular income. When a quiet month hits, pension contributions are the first thing to get cut. Combat this by treating pension contributions like a business expense — budget for them before calculating your take-home pay. Set up a standing order for a minimum amount you can sustain even in your worst month, then make lump sum top-ups when bigger payments come in. Some self-employed workers save 10-15% of every invoice into a separate 'pension pot' account, then transfer it to their SIPP quarterly.

The new state pension requires 35 qualifying years of National Insurance contributions for the full amount (£241.30 per week in 2026/27). Self-employed workers pay Class 4 NICs through Self Assessment; since April 2024 there is no compulsory Class 2, and if your profits are at least £7,105 (the Small Profits Threshold) you get a qualifying year as if you'd paid it. Below that, you can pay voluntary Class 2 at £3.65 a week. Check your NI record on the government website to see how many qualifying years you have and whether there are gaps you can fill with voluntary contributions. Filling a single missing year costs £956.80 in 2026/27 at the Class 3 rate (£18.40 a week), or less if you qualify to pay Class 2, and adds about £358 a year to your State Pension for life (1/35 of the full rate), a payback period of under three years. It's one of the best investments available.