Web Developer Rate Calculator

UK contract rates for developers are well measured. US freelance rates are not — and the figures most often quoted come from a global marketplace where you are competing against very different cost bases.

Pre-filled with typical figures for a web developer. Replace them with yours — the defaults are a starting point, not a recommendation.

What you want to earn before tax — your salary equivalent.
See the overheads specific to this field below.
Typical for this field: 26–32 hours a week.
Holiday, sickness and gaps between clients.
A buffer for slow months and reinvestment.
You should charge at least
—
per hour
Day rate (7.5 hrs)—
Billable hours / year—
Revenue needed / year—
Monthly revenue target—

This is a pre-tax floor, not a target. Use thetax set-aside calculator to see what to reserve from it.

What web developers actually charge

Partly survey-backedEvery figure below carries its source, year and — where the publisher discloses it — sample size.

MarketRateSource
UK£513/day median (software developer); quartiles £424–£575The most robustly sampled figure in this whole dataset.ITJobsWatch UK contract job ads6 months to Aug 2026n = 252 rates / 407 adshigh confidence
UK£533/day average (software engineering)YunoJuno Freelancer Rates Report2026 editionmedium-high confidence
UKIndicative bands: junior £300–£425 · mid £425–£575 · senior £575–£800 per dayConstructed from the sources above, not a published seniority table. Job-title matching is unreliable for seniority — rates track stack and clearance more than the word "senior".Quartile envelope across ITJobsWatch and YunoJunomedium confidence
USEntry $15–$25/hr · intermediate $30–$50 · expert $50–$200; marketplace median $30/hrIMPORTANT: this reflects global labour supply competing on price, not what a US-based developer charges direct clients. Do not anchor a local quote on it.Upwork2026medium-low confidence
ContextUS employed salaries: full-stack $138k · frontend $145k · backend $175kEmployment, not freelance — the survey does not break out self-employed rates.Stack Overflow Developer Survey 2025n = 7,218 US respondentshigh confidence

What we could not verify: No survey-backed hourly rate data exists for US-domiciled independent developers. Stack Overflow does not break out self-employed compensation, and the marketplace figures measure a different population.

Hourly, project or retainer?

Day rate in the UK, hourly or fixed-fee in the US dominates this field.

The UK contract market prices developers exclusively per day, reinforced by IR35 status determinations that are written against day rates. US freelance work is quoted hourly for smaller clients and fixed-fee for agency-style builds; day rates are not a US convention.

Realistic billable hours

26–32 hours a week. Derived rather than surveyed. Long UK contracts push utilisation toward the top of this band — average contract length is around 23 working days — while project-based web work sits lower because of pitching and gaps between engagements.

This is the input people get most wrong. A 40-hour week does not contain 40 billable hours — pitching, admin, invoicing and marketing all come out of it first, and the difference between assuming 40 and assuming 29 changes your required rate by more than any other single number on this page.

Overheads specific to this field

CostTypicalSource
Professional liability / E&O (US)$744/yr medianInsureon
Cyber insurance (US)$972/yr medianInsureon
Professional indemnity (UK)Advertised entry price. Most UK B2B contracts demand £1m–£2m cover, costing substantially more.from ~£96/yr at £50k coverMarkel Direct
Hardware amortisation, cloud and hosting, AI coding subscriptions, accountancyNot independently sourcednot sourced

Three pricing mistakes specific to web developers

  1. Quoting a UK day rate without stating IR35 status. An inside-IR35 £500/day and an outside-IR35 £500/day are not the same money — employment taxes come off the former, and developers routinely lose 20–30% of net by accepting an inside role at their outside rate.
  2. Fixed-price quoting a build with no change-control clause. Web work has the worst scope-creep exposure of any discipline here, because clients treat design revisions as free.
  3. Anchoring on marketplace medians when selling to direct local clients. The $30/hr Upwork median reflects global price competition, not your market.

Common questions

How much should a freelance web developer charge?

£513/day median (software developer); quartiles £424–£575 (ITJobsWatch UK contract job ads, 6 months to Aug 2026). That is a market reference, not your number — your rate depends on your target income, your overheads and how many hours you can actually bill. The calculator on this page works it out from your own figures.

Should a web developer charge hourly or per project?

Day rate in the UK, hourly or fixed-fee in the US dominates this field. The UK contract market prices developers exclusively per day, reinforced by IR35 status determinations that are written against day rates. US freelance work is quoted hourly for smaller clients and fixed-fee for agency-style builds; day rates are not a US convention.

How many billable hours can a freelance web developer expect?

Roughly 26–32 hours a week. Derived rather than surveyed. Long UK contracts push utilisation toward the top of this band — average contract length is around 23 working days — while project-based web work sits lower because of pitching and gaps between engagements.

Next steps

Once you have a floor rate, two things decide whether it holds. First, whether the market bears it — the guide to setting your freelance rate covers finding your ceiling and positioning between the two. Second, what you keep after tax, which varies enormously by country: our Freelance Tax Index compares the total burden across 15 countries, and several charge you money even in a zero-income year.

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Rate benchmarks are published market data, not advice, and market rates vary by client, sector and location. Full disclaimer.