2026 / 27 Tax Year
IR35 Take-Home Calculator
for IT Contractors
IT contractors are one of the largest groups affected by IR35 reforms. Whether you work in software development, infrastructure, cybersecurity, or architecture, your day rate take-home depends heavily on whether you're inside or outside IR35. Use this calculator to see exactly what you'll take home in 2026/27.
Outside IR35
Limited Company
£0
£0/day effective
Contract income£0
Corp tax-£0
Dividend tax-£0
Income tax-£0
Empl. NI-£0
Net take-home£0
Effective rate0%
Inside IR35
Umbrella Company
£0
£0/day effective
Contract income£0
Employer NI (15%)-£0
Income tax-£0
Employee NI-£0
Net take-home£0
Effective rate0%
A specialist it contractor accountant typically saves far more than they cost. Compare contractor accountants and IR35 insurance.
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2026/27 rates. Personal allowance £12,570. Basic rate 20% to £50,270, higher rate 40% to £125,140. Employee NI 8%/2%. Employer NI 15% above £5,000. Corp tax 19%/25% with marginal relief. Dividend allowance £500, dividend rates 8.75%/33.75%/39.35%. Estimates only — not tax advice. Consult a qualified contractor accountant.