Most UK employees have access to a workplace pension through auto-enrolment. But many people wonder whether they should also open a private pension (SIPP — Self-Invested Personal Pension) to get more investment choice, lower costs, or consolidate old pensions. The answer depends on your specific workplace scheme, your goals, and how engaged you want to be with your retirement savings.
Workplace Pension: The Foundation
Under auto-enrolment, your employer must contribute at least 3% of your qualifying earnings, and you contribute at least 5% (total minimum 8%). This employer contribution is free money — it effectively doubles your investment return from day one. Most people should maximise the employer match before looking at any other investment. Workplace pensions are typically administered by providers like Nest, The People's Pension, Aviva, Legal & General, or employer-specific schemes.
- •Employer must contribute at least 3% (most contribute more)
- •Your minimum contribution: 5% (total minimum 8%)
- •Auto-enrolled unless you opt out
- •Contributions made before tax (via salary sacrifice, most efficient)
- •Always get full employer match before considering other pensions
Private Pension (SIPP): More Control
A Self-Invested Personal Pension (SIPP) allows you to make additional pension contributions with full flexibility over investments. You choose the provider, the investments (from a wider range than most workplace schemes), and control everything. Contributions receive the same tax relief as workplace contributions (basic rate added automatically, higher rate claimed via self-assessment). SIPPs are particularly useful for self-employed people who have no workplace pension, for consolidating old workplace pensions, and for those wanting specific investments not available in their workplace scheme.
- •Full investment choice: shares, ETFs, funds, investment trusts
- •Consolidation: merge multiple old workplace pensions
- •Self-employed: the primary pension vehicle
- •No employer contributions (unless employer agrees to contribute)
- •Same annual allowance: combined with all other pensions (£60,000 or 100% of earnings)
Costs: Workplace vs SIPP Compared
Workplace pension charges vary widely. Nest (the government default) charges 0.3% annual management charge plus 1.8% on contributions. Some employer schemes charge less. SIPPs from Vanguard, Fidelity or InvestEngine can charge 0.15–0.35% for a diversified index fund portfolio. If your workplace pension charges are above 0.5%, a SIPP for additional contributions may be cheaper. Always check total charges on your workplace scheme.
- •Nest: 0.3% annual + 1.8% contribution charge (total ~0.5%)
- •Low-cost workplace schemes (LGIM, Legal & General): 0.1–0.3%
- •Vanguard SIPP: 0.15% platform + ~0.1–0.2% fund charges
- •Fidelity SIPP: 0.35% platform (capped for larger pots)
- •Rule: if workplace charges exceed 0.75%, compare SIPP costs
When to Open a SIPP Alongside Your Workplace Pension
Open a SIPP in addition to your workplace pension if: you've maxed out employer contributions; your workplace scheme has limited investment options; you want to consolidate old pensions; you're self-employed; or your workplace charges are high. Don't open a SIPP if you're trying to avoid your workplace pension's employer contributions — you'll lose the free money. The right order: max employer match → use ISA allowance → additional SIPP contributions → more ISA if SIPP limit reached.
Can I have both a workplace pension and a SIPP?+
Yes, and many people do. Both count towards your overall £60,000 annual pension allowance, but having both is common and legitimate.
When can I access my pension?+
Currently at 55, rising to 57 in 2028. This applies to both workplace and private pensions. State Pension age remains 66 and is separate.
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