These sample rows assume discount reduces taxable items and taxes are rounded to cents.
| Unit price | Qty | Discount | Shipping + handling | Tax rate | Final total |
|---|---|---|---|---|---|
| $49.99 | 2 | 10% | $5.00 | 8.25% | $102.81 |
| $120.00 | 1 | $15.00 | $0.00 | 7.00% | $112.35 |
| $19.50 | 3 | None | $8.75 | 9.50% | $73.64 |
| $10.00 (tax included) | 5 | 5% | $0.00 | 6.00% | $47.50 |
- Combined tax rate = state% + local% + other%
- Item total = unit price × quantity
- If price includes tax: Pre-tax items = item total ÷ (1 + rate)
- Discount = percent × pre-tax items, or fixed amount
- Pre-tax after discount = pre-tax items − discount
- Tax on items = taxable items × rate
- Tax on shipping = taxable shipping × rate (if enabled)
- Final total = pre-tax after discount + shipping/handling + total tax
- Enter unit price and quantity for your purchase.
- Add shipping and handling, if they apply.
- Enter the tax rates for your area (state, local, other).
- Pick a discount type and enter its value, if needed.
- Use advanced options for tax-included pricing and shipping rules.
- Click “Calculate final price” to see totals and breakdowns.
- Download CSV or PDF for saving and sharing your results.
1) Does this calculator replace official tax advice?
No. It provides planning estimates using the inputs you enter. Always confirm rules and rates with your tax authority or accountant for your jurisdiction and item category.
2) What should I enter for “other tax”?
Use it for special district taxes, surtaxes, or additional fees that behave like a percentage sales tax. If you do not have one, enter 0.
3) Why is there an option for tax-included pricing?
Some regions show prices that already include tax. When enabled, the calculator converts the entered item total into a pre-tax amount, then recomputes tax after any discount for a clearer breakdown.
4) Does discount always reduce the taxable amount?
Not always. Some jurisdictions treat certain coupons differently. Toggle “Discount reduces taxable items” to model cases where tax is calculated on the original price.
5) Should shipping be taxed?
It depends on local rules and item type. If shipping and handling are taxable where you are, enable “Tax shipping and handling.” Otherwise, keep it off.
6) Why do my totals differ by a cent?
Invoices may round discounts or taxes at different steps. Try switching rounding mode and the “Round item and shipping tax separately” option to match the rounding policy used on your receipt.
7) Can I use decimal quantities?
Yes. Decimal quantities help estimate tax for weight-based or bulk items. Ensure your unit price matches the same unit (per kg, per meter, per gallon, and so on).
8) What is the best way to verify the result?
Compare your inputs to a recent receipt, including taxability of shipping and discount handling. Adjust the options until the calculator matches your real-world invoice method.