UK SaaS founder pension SIPP solo director 2026/27: the employer route, the GBP 60k allowance, and how the company pays the SIPP for a 33-38k tax saving

Most UK SaaS solo directors think about pensions the way employees do: a chunk of salary disappears, tick the auto-enrolment box, forget about it. That model is wrong for you. You don't have a salary worth speaking of, and paying into a SIPP from your net dividend income — the route most founders default to — is actively the worst use of your money.

The employer pension contribution is the lever you should be pulling. The company, not you personally, pays directly into your SIPP up to £60,000 a year, with zero income tax, zero National Insurance, and a corporation tax saving of 19-25% on the contribution itself. On £60,000 of company cash, taking it as a dividend leaves you with roughly £40k after tax. Routing it via employer SIPP leaves the full £60,000 invested for retirement and saves the company £11,400-£15,000 in corporation tax on top.

That gap — £33,000 to £38,000 saved on a single compensation decision — is the employer contribution route. It's the most tax-efficient move available to a UK SaaS solo director, wildly under-used because the SERP for "founder pension UK" is dominated by IFA listicles and platform marketing that don't spell out the founder-specific maths.

This post walks through how the route works, the 2026/27 allowance and tapers, the wholly-and-exclusively HMRC test, the SIPP platforms that handle it properly, and a worked example.

2026/27 SIPP thresholds and rates at a glance

Item	2026/27 figure	What it means
Annual allowance	£60,000	Cap on total tax-relieved pension input per tax year (gross)
Tapered allowance trigger	Adjusted income £260,000	Allowance drops £1 for every £2 above
Tapered allowance floor	£10,000	Reached at adjusted income of £360,000
Money Purchase Annual Allowance (MPAA)	£10,000	Triggered if you flexibly draw from a pension
Carry-forward window	3 prior tax years	Unused allowance from 2023/24, 2024/25, 2025/26
Corporation tax small profits rate	19%	Profits up to £50,000
Corporation tax main rate	25%	Profits above £250,000 (marginal relief between)
Earliest pension access age	57	Rises from 55 in April 2028
Wholly-and-exclusively test	HMRC PTM043300 / BIM46035	Contribution must be commensurate with director duties

The £60,000 is gross — the total of all contributions from all sources, not net of relief. We come back to this in the FAQs because it confuses everyone.

What "employer contribution" actually means for a solo director

You are both the employer and the employee. The company has separate legal personality, so when it pays into your SIPP it makes an employer contribution — same legal mechanic as Tesco paying for shop floor staff. Being the only director doesn't change the tax treatment.

Personal contribution. Take money out as salary or dividend, pay personal tax, then pay what's left into the SIPP. The provider grosses it up at 20% basic-rate; you claim higher-rate relief through self-assessment. You've already paid corporation tax on the profit, NIC if it was salary, and dividend tax if it was dividend.

Employer contribution. The company pays directly from the business bank account into your SIPP. No salary event, no dividend event, no NIC, no income tax. The contribution is a deductible business expense, reducing taxable profit by the full amount and saving 19-25% corporation tax. The money lands in the SIPP gross.

For a profitable UK SaaS solo director, the employer route wins on every dimension that matters: no income tax, no NIC for either side, corporation tax relief of 19-25%, tax-free growth inside the SIPP, a 25% tax-free lump sum from age 57 (subject to the £268,275 Lump Sum Allowance), and inheritance-tax efficiency in most circumstances. The personal route loses on every one of those except the last two.

The 2026/27 annual allowance, taper, and the MPAA trap

The £60,000 allowance is the cap on all your pensions combined per UK tax year (6 April to 5 April). Three things to know.

The taper for high earners. If your adjusted income exceeds £260,000 in a tax year, the annual allowance reduces by £1 for every £2 over, down to a £10,000 floor at £360,000. Adjusted income includes salary, dividends, rental, savings interest AND employer pension contributions made on your behalf. Most solo founders won't trigger this, but if you sold your last company or had a windfall year, model it before contributing. Once made, it's stuck.

The MPAA trap. Flexibly access any pension — taking taxable income from a SIPP rather than just the 25% lump sum — and your annual allowance for future contributions drops to £10,000 for life. The single most expensive accidental decision in UK pensions. Founders trip into it in their late 50s by "experimenting" with drawing income from an old pension; that one drawdown collapses future SIPP allowance from £60k to £10k. If you might still want to contribute £30-60k a year after age 57, do not flexibly access any pension before your final contribution.

Carry-forward. Unused allowance from the previous three tax years can be added to the current year, provided you were a member of some registered pension scheme during those years (a dormant SIPP with £1 in it counts). For a solo director only just thinking about pensions, that's up to £180,000 still on the table. The employer route isn't bound by the relevant earnings rule, so the company can contribute the full carried-forward amount in a single year if it has the profit and passes wholly-and-exclusively. A founder with three unused years and a strong profit year can contribute £240,000 in one go.

The wholly-and-exclusively test: the only HMRC challenge zone

The corporation tax deduction depends on the contribution passing HMRC's "wholly and exclusively for the purposes of the trade" test (BIM46035 and PTM043300). It's the single area where solo directors get pushed back in enquiries.

The principle: an employer pension contribution is allowable if it's part of the director's overall remuneration package, AND that package is commensurate with the work the director actually does. The test isn't "is the contribution within the £60k allowance" — it's "would you pay this much to a third party doing the same job."

For a solo director with turnover of £250k+ and profit of £100k+, a £60k contribution sits comfortably inside what HMRC accepts. For a founder with a smaller company — £40k profit, side-hustle dynamic — £60k starts to look top-heavy, and HMRC will judge it in the round alongside salary and dividends.

Three documentation moves that make the case bulletproof:

1. Board-minute the contribution. Even as a sole director, write a one-page minute resolving to make the contribution as part of your remuneration. Reference work performed, financial position, and the policy decision to favour pension contributions. Date it before payment.
2. Total remuneration package note. Document how the contribution fits alongside salary (often £12,570 to use the personal allowance) and dividends. The package as a whole should be defensible against the work done.
3. Don't time it suspiciously. A £60k contribution in the final week of a tax year on a company with no contribution history, where the director then ceases trading, draws HMRC attention. Steady, recurring contributions look like remuneration.

Pass the test — almost every active full-time founder does — and the deduction is yours.

Worked example: £60k employer SIPP contribution from £75k profit

Setup: solo SaaS founder, sole director, 100% shareholder, year-end 31 March 2027. Pre-contribution profit of £75,000. Higher-rate taxpayer, taking a £12,570 PAYE salary plus dividends. The decision: deploy £75,000 of profit. Two realistic options.

Option A: take the £75,000 as a dividend.

Item	Calculation	Amount
Pre-tax profit		£75,000
Corporation tax (small profits rate, 19%)	£75,000 × 19%	£14,250
Post-CT profit available as dividend		£60,750
Dividend tax at higher rate (33.75%)*	(£60,750 - £500) × 33.75%	£20,334
Net cash to founder		£40,416
Cash into pension		£0

*Assumes basic-rate dividend band already used on prior dividends in the year — the typical scenario for a profitable solo director.

Option B: £60k employer SIPP contribution + £15k retained.

Item	Calculation	Amount
Pre-tax profit		£75,000
Employer pension contribution (deductible)		(£60,000)
Taxable profit after contribution		£15,000
Corporation tax on remainder (19%)	£15,000 × 19%	£2,850
Cash retained in company		£12,150
Cash into SIPP		£60,000
Income tax on contribution		£0
NIC on contribution		£0

Side by side:

Outcome	Option A: dividend	Option B: SIPP
Cash in founder's pocket	£40,416	£0
Cash in pension wrapper	£0	£60,000
Cash retained in company	£0	£12,150
Total wealth captured	£40,416	£72,150
Total tax paid	£34,584	£2,850
Tax saving via SIPP route		£31,734

Looking at £60,000 of compensation specifically: netting £60,000 to the founder as a dividend would require pre-CT profit of roughly £111,000 — about £21,100 corp tax plus £30,000 dividend tax, total £51,100 in tax to deliver £60,000 of personal cash. The same £60,000 deployed via employer SIPP attracts zero income tax, zero NIC, and saves £11,400 corp tax (at 19%) up to £15,000 (at 25% main rate). Total tax differential: £33,000-£38,000 saved by the SIPP route.

The catch: the £60,000 is locked away until age 57. The SIPP route is unbeatable for compensation you don't need to spend in the next 10-30 years; for cash you need now, dividends still win. The real-world play is a split — enough dividend to fund current lifestyle (typically £30-50k), the rest through employer SIPP. See our companion post on the dividend reserves test and how to optimise distributable profits for the other half of the compensation puzzle.

SIPP platform comparison for solo directors

Not every SIPP handles solo-director employer contributions cleanly. Three platforms work well for the SaaS founder profile.

Platform	Annual fee	Employer setup	Investment range	Best for
Hargreaves Lansdown	0.45% on funds up to £250k; £200/yr cap on shares/ETFs	Online scheme, BACS from company	Full UK + international shares, ETFs, funds	Founders wanting one platform for SIPP + ISA + GIA
AJ Bell	0.25% on funds up to £250k; £5/month cap on shares	Form-based, BACS, supports recurring	Full UK + international shares, ETFs, funds	Cost-conscious founders with SIPPs above £100k
Penfold	Tiered: 0.75% (first £100k) down to 0.4% (above £100k)	Paperless, direct debit from company account	Curated risk-rated funds (Vanguard LifeStrategy, BlackRock)	Simplest setup — employer contributions as a first-class feature

In practice: Hargreaves Lansdown is the bombproof default, slight overpayment on a fund-heavy SIPP under £200k. AJ Bell wins on cost above £100k — functional interface, employer scheme works without drama. Penfold is the fastest setup — employer scheme live in 20-30 minutes online, narrower curated investment range. For a founder making a first ever employer contribution this tax year, Penfold is the lowest-friction starting point; transfer later if you outgrow it.

Five mistakes UK SaaS founders make with SIPP

1. Paying personally instead of via the employer route. The number one mistake. Founders take dividends, pay 33.75% dividend tax, then pay into the SIPP from their net balance. They miss the corp tax saving AND pay personal tax on money that didn't need extracting. On £60k of compensation, £33-38k thrown away. Stop paying personally. Set up the employer scheme.

2. Ignoring carry-forward. Three years of unused £60k allowance is £180,000 of pension capacity on the table. Most founders don't realise it exists or assume it requires earnings. The employer route doesn't. If you've never contributed, the company can make a £240k contribution this year provided it has the profit and passes wholly-and-exclusively.

3. Triggering the MPAA before you've stopped contributing. Drop your future allowance to £10k for life by flexibly accessing any pension. Founders trip into this in their late 50s by experimenting with drawdown from an old pension while still running their company. Don't draw flexible income until you've made your final contribution.

4. Not setting up the SIPP at incorporation. The corp-tax-saving clock starts the moment you can make the first contribution. Founders defer for 2-3 years on the basis of "not material yet," then realise they've spent £40-80k of corp tax that could have been saved. Set up Penfold or AJ Bell the same week you incorporate. A £500 first contribution proves the plumbing.

5. Missing the 5 April year-end. Annual allowance is per UK tax year (6 April to 5 April), not per company accounting period. To use 2026/27's allowance, the contribution must be received by the SIPP by 5 April 2027. Founders make a contribution on 4 April and find the BACS hasn't cleared until 8 April — it counts against 2027/28's allowance instead. Allow two weeks of buffer.

The 30-minute SIPP ship-it

Half-hour action plan to get the plumbing live.

Step 1 (10 min): Open a SIPP with Penfold or AJ Bell. Penfold for fastest setup, AJ Bell for lowest fees on a larger pot. You'll need company name, company number, personal details, and a nominated bank account.

Step 2 (5 min): Set up the employer scheme. Penfold does it in the same flow as opening the SIPP. AJ Bell sends a one-page form.

Step 3 (5 min): Set up the outgoing payment. Add the SIPP's nominated bank details to your company online banking as a saved payee. Test with a £100 contribution. Confirm receipt within 2-3 working days.

Step 4 (5 min): Board-minute the contribution policy. Sign and date a one-page minute resolving to make annual employer pension contributions as part of remuneration. Reference corporation tax position, work performed, and contribution amount. Save with company records.

Step 5 (5 min): Submit the first real contribution. £5,000 is a sensible starter — meaningful enough to capture the corp tax saving, small enough to test the workflow. Schedule recurring monthly or quarterly to put it on autopilot.

Five steps, half an hour, lever activated.