2026 / 27 Tax Year
IR35 Take-Home Calculator
for Power BI / BI Developers
Power BI and business intelligence developers are in high demand as organisations invest in data visualisation. Contract BI roles range widely from embedded team support to standalone deliverable projects. Use this 2026/27 calculator to model your take-home.
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 power bi / bi developer 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.