DevOps contractor on £180,000

Personal Ltd Co. Outside IR35. Age 42. 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

£76,282

Pension

£60,000

Effective rate

24.3%

Marginal rate

33.8%

The decision tree for a devops contractor at this income level

A devops contractor thinking through "how should I structure this income for tax efficiency" hits the same five branches every time. Walk the tree for this exact scenario (gross £180,000 for 2026/27):

Is the engagement inside or outside IR35? Inside (umbrella) means no dividend extraction, no employer pension dodge, full PAYE deduction. Outside (Ltd Co) means access to the optimiser. This row models the outside-IR35 Ltd Co route.
Are you using the £12,570 Personal Allowance? Yes — fully. No other personal income is in play, so all £12,570 of PA is available to absorb the cheapest slice of structure-specific income.
Are you above the £100,000 PA taper? Yes — adjusted net income is roughly £180,000. The PA tapers to zero. The optimiser is steering the next slice of extraction into employer pension to dodge the 60% taper marginal rate.
How heavily are you using the pension wrapper? Aggressively — the search treats £1 of pension as worth £1 of cash, maximising long-run net wealth. The pension contribution chosen by the engine for this row: £60,000.
What is the resulting net cash? £76,282. Net wealth including pension: £136,282.

For the second-order question — what would happen at a different profit level, a different age, or a different pension preference — the same engine drives the salary-dividend split calculator, the take-home (inside vs outside IR35) calculator, and the SIPP optimiser. Each one accepts the inputs of this row as a starting point.

The numbers, line by line

Optimum salary	£12,570
Optimum dividend	£81,876
Optimum pension	£60,000
Net cash (optimum)	£76,282
Net wealth (cash + pension)	£136,282
Rule-of-thumb net cash	£102,233
Rule-of-thumb net wealth	£102,233
Saving vs rule of thumb	£34,049
Effective rate on profit	24.3%
Marginal rate (next £1 dividend)	33.8%

Why this scenario is different

Compared to the closest peer profile — Software contractor at £180,000 — 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 £60,000 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.