High school · Start here
Taxes in real life
Start with a paycheck and two receipts.
Learn to spot the tax, read the numbers, and explain what you would pay or take home. All examples use made-up amounts and rates.
Why do we pay taxes?
Taxes are payments required by governments. They help pay for public services such as schools, roads, and parks. Before doing any math, ask: Is this tax about money someone earned or something someone bought?
Official reading: IRS: Why pay taxes?
01 · Income Tax
What do you take home?
You work a shift at a movie theater. Gross pay is what you earned before anything is taken out. Take-home pay is what you get after taxes and any other deductions shown on the pay stub.
| Pay stub line | Amount |
|---|---|
| Gross pay | $150 |
| Federal income tax withheld | −$8 |
| Other deductions | −$12 |
| Take-home pay | $130 |
The $8 withheld counts toward your federal income tax for the year. Your tax return compares the tax you owe with what you already paid.
Try it: A different paycheck
Gross pay is $120. The stub shows $5 of federal income tax withheld and $10 in other deductions. What is your take-home pay? Which amount counts as federal income tax withholding?
Check the paycheck answer
$105 take-home pay; $5 withheld for federal income tax. Subtract both deductions: $120 − $5 − $10 = $105. Only the $5 line is labeled federal income tax withholding.
Next: Check a store receipt →Go deeper: Income Tax guide
Official reading: IRS: Tax withholding · IRS: Taxes for students
02 · Sales Tax
What will you pay at checkout?
You have $26 to spend on a $25 backpack. In this example, the backpack is taxable, meaning sales tax applies. The store adds a fictional 8% at checkout.
| Receipt line | Amount |
|---|---|
| Backpack price | $25 |
| Sales tax ($25 × 0.08) | +$2 |
| Total | $27 |
You’re $1 short. First multiply the taxable price by the rate, then add that amount to the price. In real life, the purchase and location determine whether tax applies and which rate to use.
Try it: A new checkout total
A taxable pair of headphones costs $40 before tax. In this example, the store adds 5%. How much tax is added, and what is the total?
Check the checkout answer
$2 in tax; $42 total. Multiply $40 by 0.05 to find $2. Then add that to the $40 price.
Next: Spot VAT in the price →Go deeper: Sales Tax guide
Official reading: California tax agency: Applying sales tax
03 · Value Added Tax
Is the tax already in the price?
While traveling, you buy a hoodie. Your receipt says “Total €24, including €4 VAT.” VAT is short for value added tax, a tax on purchases that businesses collect in stages before the item reaches the final shopper.
| Receipt line | Amount |
|---|---|
| Price before VAT | €20 |
| VAT included in the total | €4 |
| Total you pay | €24 |
You pay €24. The word including tells you the €4 is already part of the total. Check the wording on a price or receipt rather than assuming every country displays tax the same way.
Try it: Read another receipt
A receipt says “Total €36, including €6 VAT.” What do you pay, and what was the price before VAT?
Check the VAT answer
€36 paid; €30 before VAT. The €6 was already included. Subtract it from €36 to find the price before VAT.
Next: Compare all three →Go deeper: VAT guide
Official reading: European Commission: How VAT works · GOV.UK: VAT on shopping
Quick review
Spot the clue
Match each line to a tax. What word or number gives it away?
- “Federal income tax withheld: $5” on a pay stub.
- “Sales tax: $2” added at checkout.
- “Total €36, including €6 VAT” on a receipt.
Check the three clues
1 is income tax: the pay stub shows tax withheld from earnings. 2 is sales tax: the receipt adds it to a purchase. 3 is VAT: the receipt says the tax is included in the purchase total.
For teachers
A 15-minute classroom activity
- 3 minutes: Ask students where they’ve seen tax and name a service taxes help pay for.
- 8 minutes: Have pairs work through the three examples. Before revealing each answer, ask them to point to the line that explains whether to add or subtract.
- 4 minutes: Use the quick review. For an exit ticket, ask students to explain the difference between a tax withheld from pay and a tax included in a price.
Use the fictional examples in class so students don’t need to share real pay stubs or family finances.
Choose a topic to explore next →Optional current-events activity: Tax Tracker