Are payroll taxes included?
This estimate focuses on income tax only. Add local payroll or social contributions separately for a complete budget.
Step-by-step walkthrough
Tax Calculator Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- tax
- income tax
- after tax
Detailed procedure
Step 1
Choose the tax region that best matches your location.
Step 2
Enter the annual taxable income.
Step 3
Optionally adjust deductions to remove income before calculating taxes.
Teaching & troubleshooting tips
Do brackets match official government tables?
The brackets mirror current-year headline rates for a single filer in each region. Update them annually for the most accurate comparison.