Employer pension contributions save more tax per pound than any other extraction method available to limited company directors. This guide shows you exactly how much, when to contribute, and how to avoid the traps.
Compare this with the alternatives for extracting £10,000 from your company:
| Method | Corp Tax | Employer NI | Employee NI | Income/Dividend Tax | Total Tax Cost | You Receive |
|---|---|---|---|---|---|---|
| Employer pension | −£1,900 saved | £0 | £0 | £0 | £0* | £10,000 in pension |
| Dividend (basic rate) | £1,900 | £0 | £0 | £866 | £2,766 | £7,234 |
| Dividend (higher rate) | £1,900 | £0 | £0 | £2,896 | £4,796 | £5,204 |
| Salary | −£1,900 saved | £1,500 | £800 | £2,000 | £2,400 | £5,700 |
* The £10,000 goes into your pension pot tax-free. Corporation tax on the rest of your profits decreases by £1,900 because the contribution is a deductible expense. When you eventually draw the pension (from age 57), 25% is tax-free and the remainder is taxed as income — typically at a lower rate than during your contracting career.
This is why we list employer pension contributions as the number-one hidden saving in our contractor expenses guide. Most contractors vastly underuse this tool.
| Feature | Employer Contribution | Personal Contribution |
|---|---|---|
| Deductible against corporation tax | Yes | No (paid from after-tax income) |
| Employer NI saving | Yes — saves 15% | No |
| Employee NI saving | Yes — saves 8% | No |
| Income tax relief | Via CT deduction (19%) | 20% basic relief at source; claim extra for higher rate |
| Counts as personal income | No | Yes (already taxed) |
| Affects personal allowance taper | No | No (relief extends basic band) |
| Annual allowance | £60,000 (shared with personal) | £60,000 (shared with employer) |
The only scenario where personal contributions have a slight edge is if your company has no profits to offset (unlikely for active contractors) or if you want to contribute from non-company income. For virtually every limited company contractor, employer contributions are the correct route.
If you have not used your full annual allowance in the previous three tax years, you can carry forward the unused portion. For a contractor who has just started a pension after three years of unused allowance, this can mean contributing up to £180,000 + the current year’s £60,000 = £240,000 in a single year (subject to available profits).
The conditions: you must have been a member of a registered pension scheme in each year you are carrying forward from (even a scheme with zero contributions counts), and the contribution must come from company profits. Your contractor accountant checks your carry-forward position as part of annual tax planning.
| Company Profit | Pension Contribution | CT Saved (19%) | NI Avoided vs Salary | Total Tax Saving |
|---|---|---|---|---|
| £50,000 | £10,000 | £1,900 | £2,300 | £4,200 |
| £75,000 | £20,000 | £3,800 | £4,600 | £8,400 |
| £100,000 | £30,000 | £5,700 | £6,900 | £12,600 |
| £125,000 | £40,000 | £7,600 | £9,200 | £16,800 |
| £150,000+ | £60,000 | £11,400 | £13,800 | £25,200 |
“NI avoided” compares employer pension contribution with the same amount taken as additional salary (15% employer NI + 8% employee NI = 23%). CT rate uses 19% small profits for the first two rows; marginal relief rate (~26.5%) estimated for higher profits. Actual savings depend on your specific profit band.
A contractor contributing £30,000 per year to their pension saves over £12,600 in tax annually compared to taking the same amount as salary. Over a 10-year contracting career, that is £126,000 in tax savings — before investment growth. Run your own salary-vs-dividend comparison with our Ltd vs PAYE calculator.
| Feature | SIPP | Workplace Pension |
|---|---|---|
| Investment choice | Full — funds, shares, ETFs, property | Limited — provider’s fund range |
| Typical annual fee | 0.15%–0.45% platform fee + fund charges | 0.3%–0.75% total |
| Setup | Online, 1–3 days | Provider setup, may take longer |
| Employer contributions | Accepted — company pays directly | Accepted |
| Auto-enrolment compliant | Not always (check provider) | Yes |
| Best for | Engaged investors who want control | Hands-off investors who want simplicity |
Popular SIPP providers for contractors include Vanguard (lowest fees on index funds), AJ Bell (wide investment range), and Hargreaves Lansdown (comprehensive platform, higher fees). Your accountant does not recommend specific investment products but ensures the contribution structure is tax-optimal.
As a sole director with no other employees, you are exempt from auto-enrolment obligations. You do not need to set up a workplace pension or enrol yourself. If you employ staff (including a spouse), auto-enrolment duties apply to them — but as a director you can choose your own pension arrangement independently. This is why most sole-director contractors use a SIPP: maximum flexibility, no regulatory overhead.
If your total taxable income exceeds £100,000, your personal allowance reduces by £1 for every £2 above £100,000. Between £100,000 and £125,140, your effective marginal tax rate is approximately 60%. This is the most punishing income band in the UK tax system.
Employer pension contributions are the cleanest solution because they reduce your company’s profits without adding to your personal income. If your salary plus dividends would total £115,000, a £20,000 employer pension contribution brings your personal income down to £95,000 — fully preserving your £12,570 personal allowance and avoiding the 60% effective rate entirely.
For the full mechanics of how salary, dividends and pensions interact around the £100,000 threshold, see our salary and dividend strategy guide.
Inside IR35, the fee-payer deducts income tax and NI before paying your company. Your company receives a net amount. From that net amount (plus any company reserves), you can still make employer pension contributions that are deductible against corporation tax and exempt from NI.
This makes pension contributions the single most tax-efficient action available to inside-IR35 contractors. If you are inside IR35 and not maximising employer pension contributions, you are leaving significant tax savings on the table. Your accountant models the optimal contribution alongside your remaining claimable expenses.
There is no minimum period of trading before your company can make pension contributions. Every month you delay costs you a month of tax-free investment growth and a month of unused annual allowance (though unused allowance carries forward for three years). If you are in your first year of contracting, set up a SIPP in your first month and make your first contribution as soon as the company has profit.
You can contribute monthly (pound-cost averaging into investments) or make a single lump-sum contribution before your year end. Both are tax-equivalent — the corporation tax deduction applies regardless of timing within the accounting period. Many contractors use a hybrid approach: modest monthly contributions throughout the year plus a larger year-end top-up once the full-year profit is known.
To be deductible against the current year’s corporation tax, the contribution must be made (money leaves the company bank account) before your accounting period ends. A contribution made one day after year end falls into the next period. Your accountant flags the deadline as part of year-end planning at month 9.
Your pension is a long-term investment. The earliest access age is currently 55, rising to 57 from 6 April 2028. When you access your pension:
The lifetime allowance was abolished from April 2024 — there is no longer a cap on your total pension pot. This removes the historic concern about “over-funding” a pension and makes maximising contributions even more attractive.
Your company contributes £30,000 to your SIPP. Corporation tax bill reduces by £5,700 (19%). No employer NI (£4,500 saved vs salary). No employee NI (£2,400 saved vs salary). The £30,000 grows tax-free for 20 years. At drawdown, 25% (£7,500+) is tax-free. The remaining 75% is taxed at 20% if you are a basic-rate retiree — effective tax rate on the original £30,000: approximately 15%, versus 43% if you had taken it as salary or 29.75% as a higher-rate dividend. Over two decades of compounding growth, the pension route delivers dramatically more wealth.
ICAEW-regulated and led by Godwin Pinto ACA, AccTek integrates pension planning into every contractor’s tax strategy from day one:
We do not recommend specific pension providers or investment products — that is the role of a regulated financial adviser. We ensure the tax structure of your contributions is optimal, and we work alongside your financial adviser if you have one.
Whether you are an IT contractor, a freelancer, or in your first year of contracting, pension planning is included in every AccTek package from £19.99/month.
How much can my limited company contribute to my pension?
Up to £60,000 per tax year (the annual allowance for 2026/27), plus any unused allowance carried forward from the previous three years. The contribution must be justifiable as a business expense. For profitable contractor companies, HMRC routinely accepts contributions up to the full £60,000.
Is the pension contribution deducted from my salary or from company profits?
Employer contributions come directly from the company — they reduce company profits before corporation tax. They are not deducted from your salary and do not appear on your payslip. This is what makes them so tax-efficient: they bypass both NI and income tax.
Can I still contribute to a pension if I am inside IR35?
Yes. Employer pension contributions remain fully available inside IR35 and are one of your most powerful remaining tax tools. The contribution comes from your company’s net receipts (after the fee-payer’s PAYE deductions) and is deductible against corporation tax on any company income.
What happens if I exceed the annual allowance?
Contributions above the annual allowance (including carry forward) are subject to an annual allowance charge at your marginal income tax rate. This is effectively double taxation — the excess is taxed as income. Your accountant monitors your position to ensure you never exceed the limit.
Should I use a SIPP or a workplace pension?
Most sole-director contractors use a SIPP for maximum investment choice and lowest long-term fees. A workplace pension suits those who prefer a managed default fund with minimal decisions. As a sole director you are exempt from auto-enrolment, so the choice is entirely yours.
Can I access my pension before retirement?
The minimum access age is currently 55, rising to 57 from April 2028. At access, 25% is tax-free and the remainder is taxed as income. Most contractors use flexi-access drawdown rather than purchasing an annuity, taking enough each year to stay within the basic-rate band.
Is there still a lifetime allowance?
No. The pension lifetime allowance was abolished from April 2024. There is no cap on your total pension pot, making maximising contributions even more attractive for higher-earning contractors.
Every month you delay costs you tax-free growth and thousands in avoidable tax. We model the optimal contribution as part of your annual tax plan.
