What Day Rate Do I Need? 2026/27 | Contractor Rate Calculator

To match a permanent salary as a contractor, calculate your net annual take-home pay in permanent employment, factor in uncompensated benefits (such as 28 days of paid holiday, sick leave, employer pension contributions, and private healthcare, typically requiring a 25% to 35% premium), and divide by your realistic annual billable days (normally 220 to 230 days, or 44 to 46 weeks). Enter your target net into our reverse calculator above to get the exact day rate needed.

To take home £5,000 net per month (£60,000 per year) operating Outside IR35 across 46 working weeks (230 days), you need a day rate of approximately £405 to £415, generating around £93,000 to £95,000 in gross company turnover. Under an Inside IR35 umbrella company, you require a day rate of approximately £435 to £445 to compensate for employer National Insurance (15% above £5k) and apprenticeship levy.

A standard contractor benchmark is 44 to 46 working weeks, or 220 to 230 billable days per year. A full calendar year contains 260 weekdays (52 weeks × 5 days). Deducting 25 days of annual leave, 8 UK bank holidays, and 5 to 10 days of training or bench gaps leaves approximately 220 to 230 billable days.

Inside IR35 contracts carry significant secondary employment taxes. In 2026/27, employer Class 1 National Insurance is 15.0% on earnings above £5,000, and the Apprenticeship Levy adds 0.5%. Because umbrella companies deduct these employer payroll taxes directly from your gross assignment rate, you need a 15% to 25% higher day rate inside IR35 to achieve the same net cash in pocket.

No. All calculations run strictly in your web browser. No target salaries, day rates, or financial inputs are ever transmitted over the network or saved to remote databases, ensuring complete confidentiality for your contract rate negotiations.

Unlike permanent employees who receive paid time off, genuine outside IR35 contractors only earn when they work. If you take 4 weeks of holiday, your annual earnings depend on 48 weeks of billing. Our calculator defaults to a 46-week working year to ensure your required day rate covers unbilled annual leave.

To achieve a net take-home pay of £100,000 per year operating Outside IR35 across 46 working weeks (230 billable days), you need a day rate of approximately £725 to £735, generating around £167,000 in gross annual turnover. If operating Inside IR35 through an umbrella company, you require a day rate of approximately £825 to £840 (around £190,000 turnover) to compensate for 15% Employer NI, 0.5% Apprenticeship Levy, and higher PAYE bands including the £100k Personal Allowance taper.

To convert a contractor day rate to an equivalent permanent salary, multiply your day rate by your expected annual billing days (typically 220 to 230 days) and apply an adjustment factor of 25% to 35% to account for permanent employment benefits. A £500/day contractor billing 230 days generates £115,000 turnover; accounting for employer pension match, 28 days of paid leave, statutory sick pay, and job security, this equates to a permanent salary of roughly £80,000 to £85,000.