Pension

Private Pension Explained — SIPPs, Personal Pensions & When to Open One

What is a private pension?

A private pension is any pension you arrange yourself, outside of a workplace scheme. The two main types are personal pensions (managed for you by the provider) and SIPPs (Self-Invested Personal Pensions, where you choose your own investments).

Unlike a workplace pension, there's no employer — you make contributions directly, choose the provider, and control (to varying degrees) how the money is invested. The government still adds tax relief on your contributions, just as with a workplace pension.

Private pensions are regulated by the Financial Conduct Authority (FCA) and the Pensions Regulator. Your funds are protected up to £85,000 per institution by the FSCS if the provider becomes insolvent, though this is rarely a practical concern for large established platforms.

Types of private pension

SIPP
Best for: Investment control
Self-Invested Personal Pension. Full investment choice — funds, ETFs, shares, investment trusts, commercial property. Widest choice, more responsibility.
Personal Pension
Best for: Simplicity
Provider manages the investment range for you. Limited fund choice but lower complexity. Good for savers who want to set-and-forget.
Stakeholder Pension
Best for: Low minimums
Regulated personal pension with capped charges (max 1.5%), low minimum contributions (often £20/month), must accept transfers. Less common since auto-enrolment.
Group SIPP
Best for: Employer SIPP schemes
SIPP offered through an employer. Combines SIPP investment flexibility with employer contributions — increasingly common for professional sector employers.

For most individuals looking to open a private pension in 2026, a SIPP on a modern platform (Vanguard, Hargreaves Lansdown, AJ Bell, InvestEngine) is the default choice — competitive fees, broad investment choice, and full online management.

SIPPs in detail

The SIPP has become the dominant private pension vehicle in the UK, accounting for the majority of individually-arranged pension assets. Here's what distinguishes it:

What you can invest in

What you can't hold in a SIPP

Simple SIPPs vs full SIPPs

Most retail investors use a "simple SIPP" — a platform-based SIPP limited to funds, ETFs and shares. "Full SIPPs" can hold commercial property and more exotic assets, and are typically used by business owners. For the vast majority of people, a simple SIPP on a mainstream platform is all they need.

Private pension vs workplace pension

Feature Workplace Pension Private Pension (SIPP)
Employer contributions Yes — minimum 3% by law No (unless via group SIPP scheme)
Investment choice Limited — scheme's fund range Broad — funds, ETFs, shares
Fees Often subsidised by employer Market rate — 0.15–0.45%/year typical
Portability Stays with scheme when you leave Always with you — consolidate at will
Control Limited — default fund usual Full — you choose everything
Tax relief Same — at marginal rate Same — at marginal rate
Annual allowance Shared £60,000 limit Shared £60,000 limit
Access age 57 (from April 2028) 57 (from April 2028)

The critical difference: workplace pensions come with employer money attached. A SIPP doesn't. This is why the standard advice is always to maximise the workplace pension first (at least to the employer match), then consider a SIPP for additional contributions.

Who needs a private pension?

Self-employed people

If you're self-employed, there's no employer to auto-enrol you and no employer contributions. A SIPP is your primary pension vehicle. This makes it one of the most important financial accounts a self-employed person can open — especially because self-employment income can be variable, and a SIPP lets you contribute flexibly (lump sums in good years, smaller amounts in lean years).

Example — self-employed freelancer using a SIPP

Zara is a freelance graphic designer earning around £45,000/year. She has no workplace pension.

  • She opens a SIPP and contributes £800/month (£9,600/year)
  • Government adds 20% basic-rate relief: pension receives £12,000/year
  • She claims the extra 20% higher-rate relief via Self Assessment: £2,400 refund
  • Effective cost: £9,600 − £2,400 = £7,200/year for £12,000 in pension
Zara's SIPP turns £7,200 of real money into £12,000 of pension savings — a 67% uplift from tax relief. Over 25 years at 6%, this grows to approximately £696,000.

People with multiple or old workplace pensions

If you've changed jobs several times and have small pension pots scattered across multiple providers, a SIPP can serve as a consolidation hub. Transferring multiple pots into one SIPP gives you:

Higher earners who've maxed out workplace options

If you want to contribute more than your workplace scheme allows or offers, a SIPP lets you direct additional contributions with the same tax relief. The £60,000 annual allowance is shared across all pensions.

Career breakers and non-earners

Non-earners can contribute up to £2,880/year and receive basic-rate tax relief, adding £720 from the government to give £3,600 in the pension. This is particularly valuable for partners taking a career break — keeping pension contributions going during periods of no income.

Contributions, tax relief and limits

Private pension contributions work identically to workplace pensions for tax relief purposes:

Tax rate Cost to you Total in pension How relief is claimed
Basic rate (20%) £800 £1,000 Provider claims automatically (relief at source)
Higher rate (40%) £600 £1,000 £200 via Self Assessment tax return
Additional rate (45%) £550 £1,000 £250 via Self Assessment tax return
Higher-rate relief is not automatic

Most SIPP providers use "relief at source" — they automatically claim 20% basic-rate relief and add it to your pot. If you're a higher-rate taxpayer, you must claim the additional 20% (or 25% for additional-rate) yourself via a Self Assessment return. Many higher-rate taxpayers miss this and overpay tax significantly.

Annual allowance and carry forward

The standard annual allowance is £60,000 or 100% of your earnings — whichever is lower. If you haven't used your full allowance in the previous three tax years, you can carry forward the unused amount and make a larger contribution in the current year.

Carry forward example

Marcus hasn't contributed much to his pension for three years. His unused allowances are:

  • 2023/24: £45,000 unused
  • 2024/25: £50,000 unused
  • 2025/26: £40,000 unused

In 2026/27, he can contribute: £60,000 (current year) + £135,000 (carry forward) = £195,000

Carry forward is particularly useful for self-employed people with variable income, or employees who receive a large bonus and want to maximise pension contributions efficiently.

Investment options inside a SIPP

The most common and recommended approach for most SIPP investors is low-cost global index funds or ETFs. These provide instant diversification across thousands of companies at minimal cost.

Common investment approaches

Costs matter enormously over decades

A 1% annual cost difference on a £200,000 pot over 20 years can reduce your final pot by more than £90,000. Use our Investment Return Calculator to model the impact of different fee structures.

Consolidating old workplace pensions

Transferring old workplace pensions into a SIPP is straightforward and tax-free. The process:

  1. Open your chosen SIPP (if you don't already have one)
  2. Request a transfer value from your old pension provider
  3. Confirm there are no exit charges or loss of guaranteed benefits
  4. Complete the transfer request form with your SIPP provider
  5. Transfer typically completes in 2–8 weeks
Do not transfer defined benefit (final salary) pensions without advice

Final salary pension transfers are irreversible and can result in a significantly worse outcome if your DB entitlement is valuable. If the transfer value is above £30,000, you are legally required to take regulated financial advice before transferring.

For people with multiple old DC workplace pensions (NEST, The People's Pension, NOW: Pensions etc.), consolidation into a SIPP is usually beneficial — especially if the old pots are small and paying higher percentage fees than a flat-rate SIPP platform would charge.

Consolidation cost saving

Anna has three old pensions totalling £35,000, each charging 0.75%/year. She opens a SIPP at 0.25%/year platform fee with a 0.1% fund charge.

  • Old pensions: 0.75% × £35,000 = £262.50/year
  • Consolidated SIPP: 0.35% × £35,000 = £122.50/year
  • Annual saving: £140
Over 25 years, compounding that £140/year saving adds approximately £9,000 to Anna's retirement pot — more than a tenth of her current pot value, from fees alone.

SIPP providers — what to look for

When choosing a SIPP provider, the key factors are fee structure, investment range, and platform quality.

Provider type Best for Typical cost
Vanguard / InvestEngine Low-cost, index-fund focused investors 0.15–0.25% platform + ~0.1–0.22% fund
AJ Bell / Bestinvest Wider fund and share choice, mid-market 0.25% (capped) + fund charges
Hargreaves Lansdown Broadest fund range, premium service 0.45% (capped above £250k) + funds
Interactive Investor Active traders, larger pots (flat fee) £12.99/month flat + trading charges

For pots under £50,000 with a simple index fund strategy, percentage-fee platforms (Vanguard, InvestEngine) are typically cheapest. For larger pots above £150,000–£200,000, flat-fee platforms (Interactive Investor) become more cost-competitive.

Project your SIPP growth

Enter your current pot, monthly contribution and expected return to see your projected retirement income.

Use the Pension Calculator →

Frequently Asked Questions

What is a SIPP and who is it for?
A SIPP (Self-Invested Personal Pension) is a type of private pension that gives you full control over your investment choices — from funds and ETFs to shares and commercial property. SIPPs are most popular with self-employed people, higher earners wanting more investment flexibility, and those consolidating multiple old workplace pensions. They carry more responsibility than a workplace pension, as you choose your own investments.
Can I have a private pension and a workplace pension at the same time?
Yes. You can contribute to both simultaneously. Your total contributions across all pensions cannot exceed the annual allowance (£60,000 or 100% of earnings in 2026/27). Many people have a workplace pension through their employer and additionally contribute to a SIPP for greater investment control or to consolidate old pensions.
How much does a SIPP cost?
SIPP costs vary by provider and pot size. Most modern platforms charge 0.15%–0.45% annual platform fee, plus the fund's own ongoing charges (0.1%–0.22% for index funds). At a £50,000 pot, a competitive SIPP might cost £100–£200/year total. Flat-fee providers become more competitive for pots above £150,000. Watch for dealing charges if you trade individual shares frequently.
What happens to a SIPP if I die?
Your SIPP nominations determine who inherits your pot. From April 2027, undrawn SIPP funds will be within the scope of Inheritance Tax at 40% above the nil-rate band — changing from the current position where pensions can pass outside the estate. Beneficiaries can inherit as drawdown or lump sum, subject to income tax if you die aged 75 or over. Always keep SIPP nominations up to date with your provider.
Can I contribute to a private pension if I'm not working?
Yes, with limits. Non-earners can contribute up to £2,880/year and receive basic-rate tax relief, giving £3,600 in the pension. You cannot contribute more than 100% of your UK earnings in a tax year, so with zero earned income, the £2,880 net / £3,600 gross limit applies. This is particularly valuable for partners taking career breaks to keep pension savings growing.