Finance contractor on £100,000

Personal Ltd Co. Outside IR35. Age 34. Pension preference: modest.

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

£49,013

Pension

£36,000

Effective rate

15%

Marginal rate

33.8%

How HMRC defines the band this income falls into

A finance contractor at £100,000 of gross for 2026/27 — plus any other personal income that stacks below — falls into the £100,000 PA-taper 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 £50,270 higher-rate threshold on the personal side.

The engine's computed bottom line for this row, given those binding constraints: net cash £49,013, pension £36,000, effective rate 15%, marginal rate 33.8%.

The numbers, line by line

Optimum salary	£12,570
Optimum dividend	£40,716
Optimum pension	£36,000
Net cash (optimum)	£49,013
Net wealth (cash + pension)	£85,013
Rule-of-thumb net cash	£66,543
Rule-of-thumb net wealth	£66,543
Saving vs rule of thumb	£470
Effective rate on profit	15%
Marginal rate (next £1 dividend)	33.8%

Why this scenario is different

Compared to the closest peer profile — Software contractor at £100,000 — this scenario sits £0 higher on gross income. That moves net cash by +£0, the pension contribution by +£0, and the effective rate by +0%. The effective rate moves only modestly — both scenarios sit inside the same binding tax band. The optimiser shifts £0 of the extraction out of the dividend slice, and £0 out of pension contributions.

Questions this scenario raises

How is corporation tax calculated in this scenario?

The taxable post-pay profit falls in the £50,000–£250,000 "marginal-relief band". Corporation tax is computed as 25% of taxable profits minus marginal relief, producing an effective marginal rate of 26.5% on each pound between the two thresholds.

How many qualifying years do I need for the full new State Pension?

35 qualifying years for the full new State Pension. With fewer, the pension is pro-rated (1/35 per year). A minimum of 10 qualifying years is required for any new State Pension. Voluntary Class 2 (sole traders) or Class 3 (everyone else) can plug gaps in the NI record.

Why does the page link to specific other professions?

The five linked pages at the bottom are computed by a similarity metric over (profession, income, structure, age band) — the closest five neighbours in that space, not the same five pages every row links to. The aim is a genuine cross-link graph rather than a star pattern that search engines correctly read as a pSEO signal.

What tax year do these figures use?

2026/27 UK tax year (6 April 2026 – 5 April 2027), England, Wales and Northern Ireland rates. Scottish tax bands are not modelled in this calculation — Scotland has a separate Starter / Basic / Intermediate / Higher / Advanced / Top band schedule that will be added in a future batch.

Why does the optimiser want such a large pension contribution?

Because employer pension contributions dodge three taxes simultaneously: corporation tax (deductible), employer NI (none), and personal income tax / NI / dividend tax (none until drawdown). For this row the optimiser allocates £36,000 to pension — the largest tax shelter available to a director.

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.