What is a SIPP?

Disclaimer: This article was written in collaboration with InvestEngine. While it provides general information about SIPPs and retirement planning, it should not be considered financial advice. Always conduct your own research or speak to a qualified financial adviser before making investment decisions.

If you’re a business owner in the UK looking to build your retirement savings, a Self-Invested Personal Pension (SIPP) can be one of the most flexible and tax-efficient pension options available.

Short for Self-Invested Personal Pension, a SIPP is a type of UK pension designed to give you more control over your retirement savings – including where they’re invested, how much you put in, and how you manage your pot over time.

In this article, we’ll explain what a SIPP is, how it works, and what makes it a useful option for self-employed people and business owners.

What does “SIPP” stand for, and how does it work?

A SIPP stands for Self-Investment Pension Plan, which is a DIY pension plan. Instead of relying on a pension manager to choose investments for you, you decide how your contributions are invested.

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You still get the same tax benefits as other pension types, including tax relief on pension contributions, and tax-free growth inside your pot. The key difference is that a SIPP puts the investment choices in your hands (or with an adviser, if you prefer).

Here’s a quick breakdown of how SIPPs work:

• You open a SIPP account with a provider like InvestEngine
• You contribute money either regularly or in lump sums
• The government adds 20% tax relief (and higher/additional rate taxpayers can claim more thanks to InvestEngine’s partnership with Pie)
• You choose where to invest: ETFs (exchange-traded funds), shares, and more
• You can only start withdrawing from age 55 (rising to 57 in 2028)

It’s a wrapper for long-term investing, built to reward you with tax perks if you lock money away for the future.

Pension allowances and tax relief

Each tax year, there’s a limit on how much you can contribute to your pension and still receive tax relief known as the annual allowance.

• For most people, the allowance is £60,000 (or up to 100% of your earnings, whichever is lower).
• For high earners, the allowance may be reduced under the tapered annual allowance. This begins when your adjusted income exceeds £260,000 and can fall as low as £10,000.
• You can also carry forward unused allowances from the past three tax years if you were a member of a registered pension scheme during those years.

Understanding these limits can help you make the most of your tax relief while avoiding unexpected charges.

What can you invest in through a SIPP?

That depends on your provider, but generally, SIPPs let you invest in:

• ETFs
• Stocks and shares
• Mutual funds
• Investment trusts
• Government and corporate bonds
• Cash or cash-like assets

Some providers even allow commercial property or gold, though these are more complex and come with extra charges.

How SIPPs compare to other pension types

If you’re weighing up different ways to save for retirement, it helps to understand how a SIPP stacks up against other pension types. Here’s a quick comparison of the main differences.

Feature	Workplace Pension	Personal Pension	SIPP
Employer contributions	Yes (if employed)	No	No (unless company pays in)
Investment control	Low	Moderate	High
Tax relief	Yes	Yes	Yes
Ideal for	Employees	Self-employed	Self-employed & experienced investors

Think of SIPPs as a middle ground between having an adviser do everything and going fully DIY. You get freedom, but still within a pension structure.

Why might a business owner choose a SIPP?

If you’re self-employed or running a limited company, a SIPP offers several advantages, but it’s important to understand the details.

• Control and flexibility: SIPPs let you decide how much to contribute, when to invest, and which funds to choose. That makes them ideal if your income varies month to month.
• Investment choice: You can choose from ETFs, funds, and other diversified investments that suit your long-term goals.

With InvestEngine, managing your SIPP is simple, transparent and built for long-term investing:

• Open your SIPP online in minutes with no setup or exit fees
• Invest in a wide range of low-cost ETFs across global markets
• Features like Savings Plan, AutoInvest and portfolio rebalancing keep investing effortless

But remember, with InvestEngine, contributions must come from your personal bank account, not directly from your company. However, you can still move money from your business into your personal account and then contribute it, claiming the tax relief through your personal tax return.

Take control of your financial future

Registering a company is just the beginning.

At 1st Formations, we’ve helped more than one million founders set up their companies quickly and confidently, and we’re here to support what comes next. From company formation to registered office addresses, mail forwarding, and compliance services, we help you build not just a company, but the right foundation for your future business.

A Self-Invested Personal Pension (SIPP) gives you the tools to do that, especially if you’re self-employed or not covered by a traditional workplace scheme. With generous tax perks and flexible investing, it can help you build wealth for the long term.

But with control comes responsibility. If you’re new to investing or unsure about how much to contribute, it’s always worth speaking with a qualified financial adviser.

Important information

Capital at risk. The value of your portfolio with InvestEngine can go down as well as up, and you may get back less than you invest.

Tax treatment depends on personal circumstances and may change. ETF costs apply. InvestEngine does not provide tax advice.

This communication is provided for general information only and should not be construed as advice. If in doubt, you may wish to consult a professional adviser for guidance.