Business calculators

Free business and freelance calculators without sign-up: pricing, profitability, VAT, tax advances, National Insurance and employer costs.

VAT calculator

Add VAT to a price or extract it from a gross amount.

Find a sale price from costs, fees and your target profit margin.

Calculate an hourly rate from your income target, expenses and billable hours.

See how a discount changes unit profit and required sales.

Find the monthly unit sales needed to cover expenses.

Check quote profitability after labor and project costs.

Estimate an advance from turnover, the assessed rate and source withholding.

Estimate monthly National Insurance and health contributions using a supplied insured base and 2026 rules.

Estimate monthly gross pay, employer insurance, pension and severance costs.