Converting a salary to a day rate is not dividing by the days in a year. Divide by the wrong number, or skip the uplift for lost benefits, and you will price a contract below the job you left. This guide gives the standard UK formula, rebuilds its 30 percent uplift at 2026/27 rates, and reconciles the two methods ranking pages disagree on.
Search intent: you have a salary, yours or one from a job advert, and you need the contractor day rate that genuinely matches it so you can quote, negotiate or judge an offer. That conversion is done in the first two sections below. Rates last reviewed: October 2026, for the 2026/27 tax year (6 April 2026 to 5 April 2027), UK-wide National Insurance with England, Wales and Northern Ireland income tax unless stated.
How do you convert a salary to a day rate in the UK?
Take your annual salary, add a 30 percent uplift for the benefits and employer costs you lose, then divide by 220 billable days. A salary of £50,000 becomes £65,000 after the uplift, and £65,000 divided by 220 gives £295 a day.
Day rate = (annual salary × 1.30) ÷ 220 billable days
That is the recruiter rule of thumb across UK contractor pages, and it is a sound starting point. Run your own figure through LancerBill’s daily rate calculator for the arithmetic, including weekly and monthly equivalents. Treat £295 as a floor to test, not a final quote. The rest of this guide shows what the 30 percent is made of at current rates, why the divisor is 220, and where the second ranking method lands instead.
| Annual salary | Plus 30 percent uplift | Day rate at 220 days |
|---|---|---|
| £30,000 | £39,000 | £177 |
| £40,000 | £52,000 | £236 |
| £50,000 | £65,000 | £295 |
| £65,000 | £84,500 | £384 |
| £80,000 | £104,000 | £473 |
| £100,000 | £130,000 | £591 |
Two warnings before you use the table. First, it converts gross salary to a gross day rate. It says nothing about take-home pay, which depends on your tax route and IR35 status. Second, the uplift and the day count do different jobs: the uplift replaces employer costs, the day count replaces paid time off. Confuse them and you double-count holiday or drop it.
Why do you divide by 220 days, not 260?
A year has 260 weekdays, but you cannot bill them all. Take off 28 days of statutory holiday, bank holidays where they fall outside that allowance, sick days, training and gaps between contracts, and about 220 chargeable days remain. Dividing by 260 would underprice every day you work.
Here is the build-up in full:
| Step | Days | Running total |
|---|---|---|
| Weekdays in a year (52 weeks × 5 days) | 260 | 260 |
| Statutory holiday, 5.6 weeks on a five-day week | −28 | 232 |
| Sick days, training and professional development | −5 | 227 |
| Admin, accounts, marketing and gaps between contracts | −7 | 220 |
The 28 days comes from the legal minimum: almost all workers are entitled to 5.6 weeks of paid holiday a year, and an employer may count bank holidays inside that total (GOV.UK, holiday entitlement rights). An employee is paid across all of it. You are paid for none of it, which is exactly why your divisor has to shrink.
Adjust the divisor to your real pattern, not your hopes. Back-to-back contracts might support 230 days. Three contracts a year with a month on the bench between them is nearer 190 to 200, and your rate has to rise to compensate. At £295 a day, dropping from 220 to 200 billed days costs £5,900 a year, more than a £25-a-day rate rise earns back across 220 days (£5,500). Availability is worth as much as rate.
Tip: State your day assumption when you quote. “£300 a day, based on around 220 billable days a year” tells the client the rate already prices in your holiday and gaps, and it blocks the comparison against a salary divided by 365 that some hiring managers still try.
Worked example: converting a fifty thousand pound salary step by step
Assumptions, stated up front: gross salary £50,000, tax year 2026/27, standard formula first, then the itemised check. No bonus, no other income, and the comparison is about matching the value of the employment package, not about take-home pay.
Step 1: apply the uplift. £50,000 × 1.30 = £65,000. This is the annual amount your contracting needs to bill to stand in for the salary plus the package around it.
Step 2: divide by billable days. £65,000 ÷ 220 = £295.45. Quote £295 a day as the converted rate, or round to £300 if your market supports it, which most recruiters using this formula do.
Step 3: sense-check it in reverse. £295 × 220 = £64,900 of annual billings. Strip the uplift back out (£64,900 ÷ 1.30 = £49,923) and you land within rounding of the £50,000 you started with. If your reverse check does not return to the salary, one of the three numbers is wrong.
Step 4: check the hourly view. On a 7.5-hour working day, £295 a day is £39.33 an hour (£295 ÷ 7.5). If the client thinks in hours, split your rate with the hourly rate calculator rather than letting them divide by eight or nine hours and shrink the number.
For the take-home side of the same salary, run it through LancerBill’s UK income tax calculator. The day rate gets you to package equivalence. Only the after-tax comparison tells you whether the move leaves you better off in cash, and that answer changes with IR35, covered below.
What does the 30 percent uplift actually cover in 2026/27?
The uplift replaces what an employer pays on top of salary: National Insurance at 15 percent above the secondary threshold, pension contributions, paid sick cover, training and equipment. At current rates the National Insurance slice alone is worth 13.5 percent of a £50,000 salary, so 30 percent is tight, not generous.
This is where most ranking pages are stale. Several still build the uplift on employer National Insurance at 13.8 percent. That rate ended in April 2025. For 2026/27 the employer rate is 15 percent on earnings above the secondary threshold of £5,000 a year (HMRC, National Insurance rates and allowances). Rebuilt item by item on a £50,000 salary, the package looks like this:
| Package element | Calculation at 2026/27 rates | Annual value |
|---|---|---|
| Gross salary | Given | £50,000 |
| Employer National Insurance | (£50,000 − £5,000) × 15% | £6,750 |
| Employer pension, assumed 5% of salary | £50,000 × 5% | £2,500 |
| Total package cost | £50,000 + £6,750 + £2,500 | £59,250 |
The pension line is an assumption, stated as one. The legal floor is lower: employers must contribute at least 3 percent of qualifying earnings under automatic enrolment, with total contributions of at least 8 percent (The Pensions Regulator), and many employers pay 5 percent or more. Use your own employer’s actual contribution if you know it. The National Insurance line is not an assumption, and the April 2025 rise matters: on the same £50,000 salary, the old basis of 13.8 percent above £9,100 gave (£50,000 − £9,100) × 13.8% = £5,644. The new basis gives £6,750, which is £1,106 more employer cost that a converted day rate now has to carry. Eligible employers can reduce their bill with the Employment Allowance, so treat the itemised figure as the standard case, not a universal one.
What the table does not price: paid sick leave, life cover, private medical insurance, bonuses, training budgets and redundancy rights. If your package carries a real bonus or generous benefits, 30 percent understates it. Add anything material to the package cost before you divide.
Watch out: The two errors that underprice contractors most are dividing the salary by 260 (or worse, 365) and skipping the uplift entirely. Salary divided by 220 with no uplift gives £227 a day on £50,000. That quietly donates the pension, the employer National Insurance and your sick cover to the client, worth roughly £15,000 a year at 220 days.
Two methods, one answer: the flat uplift versus the itemised method
Search salary to day rate and you will find a second method, used by some large recruiters: value the benefits item by item, divide by 230 days instead of 220, then add a 15 percent market premium for the flexibility and risk of contracting. Ranking pages present the two methods as rivals and never reconcile them. On the same £50,000 salary, here is what each produces and why they land together:
| Method | Calculation | Day rate | Use it when |
|---|---|---|---|
| Flat uplift, 220 days | (£50,000 × 1.30) ÷ 220 | £295 | You need a fast, defensible floor rate |
| Itemised package, 230 days, plus 15% premium | (£59,250 ÷ 230) × 1.15 = £257.61 × 1.15 | £296 | You are negotiating and can show your workings |
| Itemised package, 220 days, no premium | £59,250 ÷ 220 | £269 | Break-even only: covers package cost, nothing for your business costs or risk |
The £295 and £296 agree because they are the same sum wearing different clothes. The flat method hides holiday and risk inside two blunt numbers, 30 percent and 220 days. The itemised method prices the package precisely, uses a more optimistic 230 days, then adds the risk back explicitly as the 15 percent premium. The third row is the warning: an itemised conversion with no premium is a break-even rate, not a chargeable one. It leaves nothing for accountancy, professional indemnity insurance, software, unpaid admin or the next gap between contracts.
A practical decision rule follows. Quote the higher of the two full methods, then test it against your real costs. If your annual business costs are £3,000, they add £3,000 ÷ 220 = £13.64 a day that has to sit inside the rate or come out of your income. LancerBill’s freelance rate calculator builds a rate up from salary, expenses and billable hours in one pass, which is the same logic run from the freelancer side. And if you are handed a day rate and want the salary it matches, the conversion runs the other way in our guide to converting a day rate to a salary.
How does IR35 change the day rate you need?
IR35 does not change the conversion formula, but it changes what you keep. Inside IR35, tax and National Insurance are deducted like employment, often including the employer charge inside the fee, so you typically need a higher day rate to match the same salary than outside IR35.
Work through the consequence, not just the label. The £295 rate above matches a £50,000 package before tax. Outside IR35 through a limited company, your tax on those billings follows the company route. Inside IR35, PAYE income tax and National Insurance come off the fee, and where the employer National Insurance charge is passed into the rate, the same headline day rate buys you noticeably less. Umbrella employment sits in the same family: the assignment rate has to fund employer costs and the umbrella margin before it becomes your gross pay.
So run the conversion twice if your status is in doubt: once at the standard formula for the headline comparison, and once asking what rate, after the inside-IR35 deductions, still matches the take-home on your salary. Our guide to IR35 inside versus outside walks through how the status is decided and what it does to take-home pay, and the comparison in freelance hourly rate versus salary covers the same trap from the hourly side. Never accept an inside-IR35 role at the outside-IR35 equivalent rate without redoing this maths.
Two smaller adjustments finish the picture. Scotland: Scottish income tax bands differ, so the take-home comparison shifts even though the gross conversion does not. Students and postgraduate loans: repayments behave like an extra tax on the employed side and follow you into most contract routes, so include them in any take-home test.
Key takeaways
- Standard salary to day rate conversion: (salary × 1.30) ÷ 220 billable days. A £50,000 salary converts to £295 a day.
- 220 days is 260 weekdays minus 28 days of statutory holiday, then sick days, training, admin and gaps between contracts.
- At 2026/27 rates, employer National Insurance alone is 15 percent above the £5,000 secondary threshold, worth £6,750 on a £50,000 salary. Pages still using 13.8 percent are stale.
- The itemised method (package cost ÷ 230, plus a 15 percent premium) gives £296 on the same salary. The two methods agree; a conversion with no premium is break-even only.
- IR35 changes what you keep, not the formula. Inside IR35, you need a higher rate to match the same salary.
Frequently asked questions
What day rate is equivalent to a £50,000 salary in the UK?
£295 a day by the standard formula: (£50,000 × 1.30) ÷ 220 = £295.45. The itemised method at 2026/27 rates gives £296, so quoting around £300 a day is well supported. Your take-home from that rate depends on your IR35 status and tax route, not on the gross conversion.
Should I use 220, 230 or 260 working days?
Use 220 as the honest planning figure: 260 weekdays minus 28 days of statutory holiday, sick days, training, admin and gaps between contracts. Use 230 only alongside an explicit market premium, as the itemised method does. Never use 260: it assumes you bill every weekday of the year, including your own holiday, and underprices every day by about 15 percent.
Why do you add 30 percent when converting a salary to a day rate?
Because a salary is only part of what an employer pays. At 2026/27 rates the employer also pays National Insurance at 15 percent on earnings above £5,000 a year (£6,750 on a £50,000 salary) plus pension contributions of at least 3 percent of qualifying earnings, and provides paid sick cover, training and equipment. The 30 percent uplift is the standard allowance for that package. Itemised at current rates, it is tight rather than generous.
Does the day rate include VAT?
Day rates are normally quoted exclusive of VAT. If you are VAT registered, you add VAT on top of the rate on your invoices, so a £295 day rate is invoiced at £295 plus VAT at the applicable rate. Confirm in the contract whether a quoted rate is exclusive or inclusive of VAT before you rely on the conversion, because an inclusive quote cuts your effective rate by the VAT fraction.
How do I convert a day rate into an hourly rate?
Divide the day rate by the hours in your contracted day. £295 a day over 7.5 hours is £39.33 an hour; over 8 hours it is £36.88. Agree the day length in the contract first, because a client who assumes a nine-hour day is quietly cutting your hourly rate. The same billable-time logic drives converting a salary to an hourly rate in our salary to hourly guide.
Rates last reviewed: October 2026. This guide is for general information only and is not financial, tax or legal advice.