Minimum hourly rate from target income, billable hours, overhead, and tax reserve

Most freelancers undercharge — here's the math that shows it

A common mistake: a salaried professional earning 50,000 moves to freelance, divides by 260 working days, and quotes 192/day. That's almost exactly half what they should charge. The difference is what the salary includes that freelance rates have to replace: holiday pay, sick pay, pension contributions, employer payroll taxes, training budget, equipment, and the days spent on admin and business development rather than billable work. Adding those back, the equivalent freelance day rate for a 50,000-salary professional is closer to 380–430. This calculator handles the conversion. Understanding why the multiplier is 2x rather than 1x is the insight.

The seven things a salary includes that freelance rates must replace

Holiday pay. employees get 28 days of paid leave including bank holidays. That's 28 unbilled days to cover through the remaining 232 working days. Rate premium required: roughly 12%.

Sick pay. Typical allowance 5–15 days covered; freelancers get zero. Rate premium: 2–6%.

Employer payroll taxes. On a 50,000 salary, employer NI is about 6,700. That's 13% of gross salary that freelancers pay entirely themselves.

Pension contributions. Typical employer pension contribution 3–10%. Freelance rate must include funding your own pension.

Training and development. Employed professionals get training budgets and paid time to upskill. Freelancers either skip training (hurting long-term earning potential) or pay and take the time themselves. Typical cost: 2–5% of annual revenue.

Equipment and software. Laptop, phone, software subscriptions, office setup. Typically 1,500–5,000 annually depending on the work.

Non-billable time. Admin, invoicing, chasing payment, business development, proposals, networking. Usually 15–30% of total working hours. Your billable hours are therefore 70–85% of your working hours.

Stack these up and the gross revenue needed to produce a 50,000 lifestyle is roughly 80,000–95,000 — not 50,000. The day rate to deliver that revenue on 180–200 billable days is 400–530.

The calculation most freelance calculators get wrong

The naive approach: salary ÷ working days. 50,000 ÷ 260 = 192. This is wrong because: (a) you don't work 260 days (subtract holiday, sick, bank holidays = 230ish), (b) not all those days are billable (subtract admin/BD = 180-200), and (c) the rate needs to cover costs salary doesn't visible include. The correct approach: (desired take-home + tax + NI + pension + business costs) ÷ realistic billable days. That's usually 2–2.5× the naive figure.

The 100k reality test

Here's a clarifying exercise. If you want to take home 60,000 from freelance work:

Gross revenue needed: roughly 100,000 (covering income tax, NI, pension, and business costs).
Billable days available: 180 (accounting for holidays, admin, business development).
Required day rate: 100,000 ÷ 180 = 556.

556/day is 69/hour in a working day. That sounds high until you remember: no holiday pay, no sick pay, no pension contribution coming from anywhere else, you pay both halves of NI, and the hour you bill includes bearing all business risk. At an equivalent employed salary that included all of the above, 556/day would map to somewhere around 90,000 gross salary. This is why experienced freelancers in most fields charge rates that sound high to outsiders — they've done the math.

The project rate vs day rate vs hourly rate decision

Hourly rates: best for unpredictable-scope work and ongoing support. Risks under-pricing skill (faster work = less revenue for the same output). Day rates: common in consulting, good for clients who want dedicated blocks of time. Usually the highest effective hourly rate because day = 7–8 billable hours minimum. Project rates: best for well-defined deliverables where you can predict the work. Most profitable when you get faster at the same work type — the price stays; your time on it drops. Most experienced freelancers mix: hourly for maintenance, day for consulting, project for deliverables. Choosing the wrong structure for a piece of work is where pricing goes most wrong.

Scaling the rate vs scaling the hours

There are two ways to grow freelance income: work more hours or charge more per hour. Most new freelancers default to working more hours, hitting the ceiling quickly (80+ hours a week doesn't scale, and quality suffers). The experienced route is raising rates annually, typically 5–15%. After 5–10 years, this compounds to 50–150% higher rates than starting levels — without working more. Clients who leave because of rate rises are usually the clients with the least money and the most complaints; losing them is often an upgrade.

The client mix that produces stable freelance income

The ideal is 3–5 anchor clients providing 60–80% of revenue, with a rotating set of smaller clients for flexibility. All-in on one client is structurally dangerous — if they cut spending or the relationship ends, freelance income can halve overnight. Too diluted (15+ clients, each providing 5–10%) usually means too much time on relationship management and not enough on billable work. The sweet spot varies by work type but 3–5 anchors + 2–4 smaller accounts is typical for sustainable freelance income.

The pricing psychology

Most freelancers undervalue their own rates for 12–24 months after starting. The discomfort of quoting 500/day when you used to earn 30/hour in a salary takes time to overcome. Two tactics help: quoting in writing rather than verbally (removes the live negotiation pressure), and anchoring on the annual revenue target rather than feeling out each quote. If your target is 100,000 gross and your billable days are 180, then 556 is the rate — not 400 because the client flinched. The clients willing to pay your target rate exist; finding them takes more time than underquoting, but the income structure is sustainable.

What the calculator assumes

The tool computes a day rate given inputs about desired income, working days, and cost multipliers. It doesn't validate whether your multipliers are realistic or capture industry norms in your specific field. Use the figure as the arithmetic starting point; adjust for your specific work type, geographic market, and seniority.