Self-Employment Expense Calculators
Mileage, home office (flat rate and apportionment method), simplified expenses — free tools for calculating what you can deduct from your self-employed profits.
3 tools in this category
- HMRC Mileage Calculator
Calculate your AMAP claim — 45p/25p for cars, motorcycle, bicycle, passenger supplement.
- Working from Home Calculator (Simplified)
HMRC flat-rate home working allowance: 25–50 hrs/mo = £10, 51–100 = £18, 101+ = £26.
- Use of Home as Office Calculator
Apportionment method — room fraction × time fraction × running costs. Often gives a larger deduction than flat rates.