Formula & method
Tax = net price × rate; gross = net + tax
Manual tax estimate: enter the applicable tax year, effective income-tax rate and other deductions, or sales-tax rate. This tool does not apply official tax brackets, credits or exemptions automatically.
Assumptions
- Inputs remain in your browser and are not saved.
- Rates are converted to the payment frequency shown.
- Results are rounded for display; internal calculations retain precision.
Example calculation
Example
At 20% VAT, a net price of £100 becomes £120.
Important
Manual tax estimate: enter the applicable tax year, effective income-tax rate and other deductions, or sales-tax rate. This tool does not apply official tax brackets, credits or exemptions automatically.