Finance⏱ 6 min read
How to Calculate Your Freelance Day Rate (Without Underselling Yourself)
Most freelancers set their rates by guessing what the market will bear. Here's a bottom-up method based on your actual costs, tax obligations, and the reality of non-billable time.
Freelancers who price on gut feel almost always underprice — because they forget tax, slow months, holiday, sick days, and the hours spent on business admin that nobody pays for. Here's the calculation that fixes all of that.
Step 1: Calculate Your Required Annual Income
Start with what you need to take home after tax:
Living costs + savings goal = Target net income
Example: rent £1,000/mo, all living costs £2,400/mo,
savings target £500/mo
Monthly net needed: £2,900
Annual net needed: £34,800
Step 2: Gross Up for Tax
UK sole trader, assuming standard personal allowance (£12,570):
Taxable profit = Gross income - allowable expenses
Income tax: 20% on £12,571-£50,270, 40% above
To net £34,800 after income tax and Class 4 NI:
Approximate gross needed: ~£46,500
Quick formula for basic-rate sole trader:
Gross needed = Net required / 0.65
= £34,800 / 0.65 = £53,538
(This accounts for ~20% income tax + ~9% Class 4 NI + 2% above threshold)
Adjust if you're close to the 40% threshold.
Step 3: Account for Non-Billable Time
52 weeks/year
Less: 4 weeks holiday + 1 week sick + 1 week bank holidays
= 46 working weeks
Less: 20% non-billable time (admin, pitching, CPD, downtime)
Billable weeks: 46 x 0.80 = 36.8 weeks
Billable days (5-day week): 36.8 x 5 = 184 days/year
This is why freelance rates must be significantly higher than
equivalent employee salaries — employees get paid for all 52 weeks.
Step 4: Calculate Day Rate
Day rate = Required gross / Billable days
= £53,538 / 184 = £291/day (minimum to sustain yourself)
Add business costs on top:
Accountant: £600/yr
Professional insurance: £400/yr
Software/tools: £600/yr
Marketing/website: £300/yr
Training: £500/yr
Total business costs: £2,400/yr
Adjusted gross needed: £53,538 + £2,400 = £55,938
Day rate: £55,938 / 184 = £304/day (floor rate)
Step 5: Add a Profit Margin
Your floor rate keeps you solvent. Your actual rate should include a buffer for uncertainty, irregular months, and business growth. Add 20-30% above the floor:
Floor rate: £304/day
Target rate (+25%): £304 x 1.25 = £380/day
Premium rate (+50%): £304 x 1.50 = £456/day
Quote the target rate initially.
If consistently winning every pitch, your rate is too low.
If winning fewer than 1 in 3 pitches, it may be too high.
Hourly Rate Conversion
Day rate / 7.5 (standard working day in hours)
= £380 / 7.5 = £50.67/hour
For short projects or meetings, always use day rates or half-day rates
rather than hourly — it prevents scope creep and undervaluing preparation time.