Day Rate to Annual Salary Calculator

Multiply your day rate by the number of billable days you expect to work in a year. Most contractors in Ireland and the UK bill between 200 and 230 days per year, after accounting for public holidays, annual leave, and gaps between contracts. At 220 billable days, a €500/day rate equals €110,000 gross per year. This calculator lets you adjust the number of working days and extra unpaid days off to get your specific figure.

A standard working year in Ireland and the UK has around 252 working days (excluding weekends). After deducting public holidays (roughly 10 days in Ireland, 8 in England), four weeks of annual leave, and an allowance for gaps between contracts, most contractors target 200 to 230 billable days per year. 220 days is the most commonly used benchmark.

In gross terms, €500/day at 220 billable days equals €110,000 per year. However, contractors do not receive employer pension contributions, paid leave, or sick pay, so the comparable permanent salary is typically 20–30% higher than the gross contract equivalent. The net take-home also depends on your operating structure: use the Irish contractor calculator to compare PAYE umbrella, sole trader, and director take-home from any day rate.

Always compare on a like-for-like basis. A gross day rate converts to a gross annual figure. To compare with a permanent role, calculate your net take-home from the contract rate using the appropriate calculator and compare that to the net salary from the permanent role. Contractors also need to factor in the cost of equipment, insurance, accountancy, and pension that employers typically cover for permanent staff.

Inside IR35, HMRC treats you as an employee for tax purposes and your take-home is similar to a permanent salary. Outside IR35, you pay yourself through a limited company using salary and dividends, which is typically significantly more tax-efficient. Use the IR35 calculator linked below to see the exact difference for your day rate.

Your day rate should reflect your role, experience level, and market. In Ireland, mid-level software engineers typically bill €400–€600/day; senior engineers and architects commonly reach €650–€900/day. In the UK, mid-level rates are £350–£550/day, with senior roles at £550–£800/day. Specialist skills in AI, cloud, and security command the top of these ranges. Browse our Ireland and UK contract rate benchmarks for role-specific figures, linked in the section above.

Agencies typically add a margin of 15–25% on top of the rate they pass to you. If a client pays €500/day and your rate is €420/day, the agency margin is €80/day (16%). Some agencies quote an inclusive rate and take margin from the gross; others quote your net rate and add their fee on top. Always clarify which model applies before signing a contract. Knowing the client's budget gives you a stronger negotiating position.

A day rate assumes a fixed number of hours per day (typically 7.5 or 8). An hourly rate gives you more granularity if you work variable hours or bill for fractional days. For annual comparisons, the calculation is the same: multiply your effective daily equivalent by your billable days. At 7.5 hours per day, a €500/day rate is equivalent to roughly €66.67/hour.

The strongest position in a rate negotiation is knowing the market rate for your specific role and stack, and being able to demonstrate the business value you deliver. Timing matters too: rate reviews are easier at contract renewal than mid-engagement. Having a competing offer or being in active conversations with other clients substantially strengthens your position. Benchmark data by role and city is available in our contract rate pages linked above.