Day Rate to Salary Calculator
✓ Verified for 2026/27Day Rate Details
Equivalent Valuation Breakdown
How We Calculated This
- Annualise gross day rate: Multiply day rate by target working days (typically 220 or 230 days per year).
- Deduct contractor overheads: Account for unpaid holidays, sick days, and pension match deficiencies.
- Apply permanent equivalent discount: Reduce the annualized gross by 15-20% to represent permanent benefits.
- Compare take-home returns: Contrast the contractor net income with permanent net salary side-by-side.
Real-World Examples
Comparing a contract day rate to a permanent employment equivalent.
Day Rate: £450 Working Days: 220 Contractor Gross: £99,000 Adjusted Permanent Equivalent: £79,200 (accounting for holidays, pensions, and insurance benefits).
Frequently Asked Questions
Multiply your day rate by the number of working days in a year (typically 220 to 230 days, allowing for holidays, bank holidays, and potential gaps between contracts).
It is the permanent salary that would give you the equivalent value of a day rate, factoring in benefits like employer pensions, paid holiday leave, sick pay, bonuses, and job security.
Contractors have no paid leave or employer pension matching, and outside IR35 contractors pay lower dividend tax rates instead of regular income tax.
A standard calculation uses 220 working days. A full year has 260 weekdays, but subtracting 25 days holiday, 8 bank holidays, and 7 sick/gap days leaves 220 days.
Yes. Inside IR35 contracts are taxed similarly to permanent salaries, reducing your take-home pay significantly compared to outside IR35 contracts.
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About This Calculator
This calculator uses the latest HMRC rates for the 2026/27 tax year. For illustrative purposes only — always consult a qualified tax adviser for formal advice.