IT Contracting Unlocked — by Ravi Matharu

Book Updates & Current Figures

Tax rates, IR35 rules and contractor guidance — kept current between print editions.

Last updated: July 2026 · Tax year: 2026/27

⚠ Tax rules change at each Budget. These figures reflect the 2026/27 UK tax year (6 April 2026 – 5 April 2027). Always confirm rates with a qualified accountant before making decisions. Nothing here is professional tax or legal advice.

1. Key Tax Rates & Thresholds (2026/27)

Income Tax — England, Wales & Northern Ireland

BandIncome rangeRate
Personal allowanceUp to £12,5700% Frozen to 2031
Basic rate£12,571 – £50,27020%
Higher rate£50,271 – £125,14040%
Additional rateOver £125,14045%

Scotland has separate rates — see gov.uk/scottish-rate-income-tax. The personal allowance tapers to zero above £125,140.

Dividends

Item2026/27 figurePrevious
Dividend allowance (tax-free)£500£1,000
Basic rate10.75% ↑ Changed Apr 20268.75%
Higher rate35.75% ↑ Changed Apr 202633.75%
Additional rate39.35%39.35%

Corporation Tax

ProfitsRate
Up to £50,00019% (small profits rate)
£50,001 – £249,99919%–25% (marginal relief applies)
£250,000 and above25% (main rate)

Marginal relief fraction: 3/200. Thresholds divide proportionately if you have associated companies. Use the HMRC marginal relief calculator.

National Insurance (2026/27)

TypeThresholdRate
Employee NIC (Class 1)£12,570 – £50,270/yr8%
Employee NIC (Class 1)Over £50,270/yr2%
Employer NIC (secondary)Over £5,000/yr ↑ Changed Apr 202515%
Employment AllowanceMax offset on employer NIC£10,500 (eligibility rules apply — most sole-director PSCs cannot claim)

VAT

ItemFigure
Registration threshold (rolling 12 months)£90,000 ↑ Was £85,000
Standard rate20%
Flat Rate Scheme — IT consultancy14.5% (but most IT contractors qualify as limited-cost traders: 16.5%)

Pension

Item2026/27
Annual allowance£60,000
Lifetime allowanceAbolished April 2024
Taper applies whenThreshold income > £200,000 AND adjusted income > £260,000 (minimum tapered allowance: £10,000)

2. Optimal Director Salary (2026/27)

For a sole-director PSC with no other employees and no Employment Allowance entitlement, the personal allowance salary of £12,570 remains the most tax-efficient option at both the 19% and 25% Corporation Tax rates. The Corp Tax saving still outweighs the employer NIC cost.

Salary optionEmployer NICCorp Tax saving (19%)Corp Tax saving (25%)Net benefit vs nil salary
£0£0£0£0£0
£5,000 (secondary threshold)£0£950£1,250£950 / £1,250
£6,708 (LEL)£256£1,275£1,677£1,019 / £1,421
£12,570 (personal allowance)£1,136£2,388£3,143£1,252 / £2,007

Assumes: no other employment income, no other employees, 2026/27 rates. Confirm your optimal salary with your accountant — individual circumstances differ.

3. Making Tax Digital for Income Tax — Timeline

FromWho it affects
6 April 2026 Now liveSole traders & landlords with qualifying income > £50,000 in 2024/25
6 April 2027Qualifying income > £30,000 in 2025/26
6 April 2028Qualifying income > £20,000 in 2026/27

Limited-company directors are not in scope for MTD for Income Tax on company profits alone — only if they also have sole-trader or property income above the threshold.

4. IR35 & Off-Payroll — Current Position (July 2026)

Who determines your status? Public sector clients: responsible since April 2017.
Medium/large private & voluntary sector: responsible since 6 April 2021.
Small clients (Companies Act test: 2 of 3 — turnover < £10.2m, balance sheet < £5.1m, < 50 employees): you self-assess.
Status Determination Statement (SDS) Medium/large clients must issue an SDS stating the conclusion and the reasons. If no SDS is issued, liability falls on the client. CEST output can serve as the SDS.
Challenging an SDS Put your disagreement in writing to the client. The client must respond within 45 days. If they don't, liability transfers to them. The original determination stays in force during the dispute period.
CEST tool Last updated 30 April 2025. HMRC stands by all CEST results where the information given is accurate. Available at: gov.uk/guidance/check-employment-status-for-tax
The key status tests (unchanged) Control: who directs what, how, when and where you work?
Substitution: is your right to send a substitute genuine and unfettered?
Mutuality of obligation: weak on its own — control and substitution carry more weight.
Working practices beat the contract (ESM0510): what actually happens on the ground is what HMRC assesses.

5. What Changed from the Print Edition

ItemPrint edition hadCurrent figure
Dividend allowance£1,000£500
Dividend tax — basic rate8.75%10.75% (from April 2026)
Dividend tax — higher rate33.75%35.75% (from April 2026)
Employer NIC rate13.8%15% (from April 2025)
Employer NIC secondary threshold£9,100/yr£5,000/yr (from April 2025)
VAT registration threshold£85,000£90,000
CEST tool versionPre-2025Updated April 2025
MTD for Income TaxFuture/upcomingLive from 6 April 2026 (£50k+ threshold)