Cloud architect contractor on £240,000

Personal Ltd Co. Outside IR35. Age 46. Pension preference: aggressive.

Every figure on this page is computed at build time by the same engines that power the live salary–dividend split, take-home and SIPP optimiser calculators. Inputs come from a single CSV row; outputs come from the engines. No static lookup tables, no hand-coded numbers.

Net cash

£102,375

Pension

£60,000

Effective rate

32.3%

Marginal rate

39.4%

How HMRC defines the band this income falls into

A cloud architect contractor at £240,000 of gross for 2026/27 — plus any other personal income that stacks below — falls into the additional-rate band. HMRC's published rules for this band are unchanged from the figures announced in the Autumn Budget 2024 (which froze all the major thresholds at their April 2021 levels until at least April 2028).

For reference, the 2026/27 boundary numbers as published by HMRC:

Personal Allowance: £12,570 (full PA — tapered above £100,000 adjusted net income).
Basic-rate band: £12,570 to £50,270 (20% income tax, 8.75% dividend tax).
Higher-rate band: £50,270 to £125,140 (40% / 33.75%).
Additional-rate band: above £125,140 (45% / 39.35%).
PA taper: £1 of PA lost per £2 over £100,000 adjusted net income, fully eroded at £125,140.
Employer NI: 15% above the £5,000 Secondary Threshold (Finance Act 2024).
Employee NI: 8% main band (£12,570–£50,270), 2% above.
Class 4 NI (sole traders): 6% main band, 2% above. Class 2 voluntary: £3.45/week (£179.40/yr).
Corporation Tax: 19% small profits rate (≤ £50,000), 25% main rate (≥ £250,000), 26.5% effective marginal in between.
Dividend Allowance: £500 at 0%.
Pension Annual Allowance: £60,000 (tapered to £10,000 above £260,000 adjusted income).

For this specific row, the binding constraints are: the corporation-tax marginal-relief band (26.5% effective marginal CT) on the company side, and the £100k Personal Allowance taper on the personal side.

The engine's computed bottom line for this row, given those binding constraints: net cash £102,375, pension £60,000, effective rate 32.3%, marginal rate 39.4%.

The numbers, line by line

Optimum salary	£5,000
Optimum dividend	£132,375
Optimum pension	£60,000
Net cash (optimum)	£102,375
Net wealth (cash + pension)	£162,375
Rule-of-thumb net cash	£128,980
Rule-of-thumb net wealth	£128,980
Saving vs rule of thumb	£33,394
Effective rate on profit	32.3%
Marginal rate (next £1 dividend)	39.4%
Years to age-57 pension access	11
Annual pension contribution (this row)	£60,000
Projected pot at 57 (5% real, single-path)	£852,407
Sustainable income @ 4% SWR	£34,096/yr

Why this scenario is different

Compared to the closest peer profile — IT contractor at £250,000 — this scenario sits £10,000 lower on gross income. That moves net cash by −£4,458, the pension contribution by +£0, and the effective rate by −0.9%. The effective rate moves only modestly — both scenarios sit inside the same binding tax band. The optimiser shifts £7,350 of the extraction out of the dividend slice, and £0 out of pension contributions.

Questions this scenario raises

What if I have rental income alongside this self-employment?

Add it to the `otherIncome` field of the calculator. Property income is taxed at non-savings, non-dividend rates (so stacks alongside salary in the band schedule). The first £1,000 of rental income can also be sheltered by the separate Property Allowance under FA 2017 s.16.

How do I model my partner's income alongside mine?

BracketMath models a single tax entity — there is no joint-couple calculation. For couples, the practical approach is to run each partner separately and consider income-splitting strategies (employing the lower-earning spouse for genuine work performed, sharing dividends if both are shareholders, etc). The Ltd Co spousal share pattern is sketched in /guides/ltd-company-director-tax.

Why does the optimiser pay a salary above £5,000 if employer NI starts there?

Because beyond the £5,000 Secondary Threshold, each £1 of salary still saves 19–25% of corporation tax and only costs 15% in employer NI plus 8% employee NI — a net 11–17% saving up to the £12,570 Personal Allowance. The 2026/27 optimum for this row is £5,000 of salary, sitting in exactly this regime.

How long will my pension pot last?

See the SIPP optimiser at /calculators/sipp-optimiser for a 10,000-path Monte Carlo answer. The widely-cited "4% safe withdrawal rate" comes from US data; the UK historical record produces a lower number (closer to 3.0–3.5%) due to inflation regime differences and slower equity returns. The calculator reports the probability of pot exhaustion explicitly.

How does the Pension Annual Allowance taper work?

Above £260,000 of adjusted income, the £60,000 Annual Allowance reduces by £1 for every £2 over the threshold, down to a £10,000 floor at £360,000 of adjusted income. The taper bites later than the £100k Personal Allowance taper but is similarly punitive on pension contributions specifically.

Methodology

Income tax, National Insurance and Corporation Tax bands taken from HMRC's 2026/27 rates and allowances tables (gov.uk/.../income-tax; corporation-tax). Pension Annual Allowance and taper rules from Finance Act 2004 / 2023. Trading allowance per ITTOIA 2005 s.783A. Voluntary Class 2 figure (£179.40/yr = £3.45/wk × 52) from HMRC voluntary NI guidance.

Style: 2026/27 tax year throughout; figures rounded to whole pounds in the user-facing prose; effective rates computed as (deductions / gross). The voice is methodological — no first person, no claimed credentials, no marketing fluff.

This page is not personalised advice; for advice regulated by the FCA, consult an adviser registered with the Financial Conduct Authority. See the full disclaimer.