Retirement & Tax Planning · 2026
The Pension Gap: Why Most CIS Subcontractors Will Retire Broke — And How a SIPP Fixes It Today
The UK State Pension pays £221 a week. If that is your retirement plan, you need to read this. A SIPP does not just build your future — it cuts your tax bill right now by up to 40%.
Most CIS subcontractors have no workplace pension, no auto-enrolment, and no employer making contributions on their behalf. They are entirely on their own at retirement — and most have never done the maths on what that actually means. The numbers are brutal. The fix is straightforward. And the government will pay you to start today.
The Reality of Retiring on the State Pension Alone
Before we talk about the solution, look at the problem clearly. The full UK State Pension in 2026/27 is £11,502 per year — roughly £960 a month before any tax. That is the number you are heading towards if you make no other provision.
Ask yourself honestly: could you live on £960 a month today? No van. No tools. No materials budget. Just £960 — for rent, food, bills, and everything else. For most tradespeople who have spent their careers earning £700–£1,200 a week, the answer is no. The gap between what the State provides and what a comfortable retirement actually costs is enormous.
Covers basic necessities only. No holidays, no car, no flexibility. You will likely qualify for Pension Credit — which signals just how low the floor is.
Covers a car, annual holidays, home maintenance and a social life. This is the figure most financial planners use as a baseline for a decent standard of living in retirement.
Selling your tools and your van was never a pension plan. It was always a one-time event that might cover six months.
CIS Tax Insights, 2026The SIPP: A Tax Relief Tool That Also Builds Your Retirement
Most people think of a pension as a retirement product. It is also one of the most powerful tax reduction tools available to self-employed workers — and almost nobody in the trades uses it.
Self-Invested Personal Pension — The Self-Employed Alternative to a Workplace Pension
A SIPP is a private pension account you open and contribute to yourself. Unlike a workplace pension, there is no employer — but HMRC steps in instead. Every contribution you make receives automatic tax relief at source: the government adds back the income tax you paid on that money, effectively giving you a refund into your pension pot rather than your bank account. For higher-rate taxpayers, you can claim even more back through your Self Assessment return.
How Tax Relief Actually Works — Both Rates
There are two levels of relief, and most subcontractors are only aware of one. If you pay higher-rate tax on any of your income, you are likely claiming less than half of what you are entitled to.
If your taxable profit exceeds £50,270, any income above that is taxed at 40%. A SIPP contribution pulls that income back below the threshold, saving you £40 per £100 contributed — not £20. Many subcontractors earning £55,000–£70,000 are leaving thousands of pounds of relief unclaimed every year simply by not having a SIPP.
The Real Numbers: A Higher-Rate Subcontractor
| Cash paid into SIPP by subcontractor | £4,800.00 |
| Basic rate relief added automatically by SIPP provider (20%) | + £1,200.00 |
| Total pension pot growth (year one) | £6,000.00 |
| Higher rate relief claimed back on Self Assessment | − £1,200.00 refund |
| Real net cost to the subcontractor | £2,400.00 |
What £200/Month Becomes Over Time (5% Growth)
Basic rate relief alone turns £200/month into £250/month in pension contributions. Here is what that grows to:
These figures assume no increase in contributions over time and a conservative 5% annual growth rate. Most subcontractors start with more than £200/month once they understand the true net cost after relief.
The Key Rules for 2026/27
Before you open an account, understand the three numbers that govern how much you can contribute and when you can access it.
Practical Steps: How to Start
Opening a SIPP is significantly easier than most subcontractors expect. You do not need a financial adviser to open a basic account — though it is worth speaking to one before making large contributions, particularly if you are near the higher-rate threshold.
Popular SIPP Providers
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Start Small — But Start This Week Even £100–£200 per month builds a meaningful pot over 20–30 years. After basic rate relief, £200/month costs you £160. The habit of starting matters more than the initial amount. You can always increase contributions as your income grows.
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Automate the Contribution Set up a monthly direct debit from your business account on the day after your main payment arrives. If the transfer is automatic and the money is gone before you see it, you will not miss it — and you will not spend it. This is the single most effective change most subcontractors can make.
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Claim Higher-Rate Relief on Your Self Assessment Your SIPP provider handles basic rate relief automatically. If any of your income falls above £50,270, you must claim the additional 20% relief yourself on your Self Assessment return. Most accountants include this — but check. Many subcontractors at this income level are not claiming it.
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Keep Records of Every Contribution Your SIPP provider will issue annual statements. Keep these alongside your tax records. You will need the figures when completing your Self Assessment, and if HMRC ever queries your pension deduction, a clean record takes the conversation from an investigation to a five-minute call.
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Speak to a Specialist — Not a Generalist An accountant who understands CIS income and self-employment will structure contributions around your specific tax position — factoring in your SA302, Payments on Account, and the interaction with your CIS deductions. A generalist financial adviser may not understand the nuances. Ask specifically whether they work with self-employed tradespeople.
The Cost of Doing Nothing
Every year you delay starting a SIPP is a year of lost compound growth and lost government contribution. There is no backfill option: you cannot go back and fund last year's pension once it has passed.
The State Pension will be there. But £221 a week — after a career of £800-a-week take-home — is a dramatic reduction that catches most people completely off guard. The subcontractors who will retire comfortably are not the ones who earned the most. They are the ones who started saving the earliest, captured the most government relief, and let compound growth do the heavy lifting.
A £100/month SIPP contribution today costs you £80 after relief. In 30 years, it is part of a pot that could be worth over £200,000. The maths is not complicated. The only decision is whether you start this month or next year — and next year often becomes never.
QuoteDone Tools
Sort Your Tax — Then Sort Your Future.
Claim your CIS refund first — then put part of it to work in a SIPP. Here are the two tools that make both easier.
This article is for informational purposes only and does not constitute professional financial, pension, or tax advice. Past investment performance is not a guarantee of future results. Always consult a qualified independent financial adviser and a specialist accountant before making pension decisions. Figures based on 2026/27 HMRC thresholds and PLSA Retirement Living Standards 2026.