Финансы
Мгновенно, конфиденциально и бесплатно
НДС / Налог с продаж.
Рассчитаите цены с учетом налогов и без
Этот калькулятор пока переведён не полностью — часть текста отображается на английском.
Введите значения
Результаты обновляются во время ввода.
Разбивка:
Как пользоваться
Добавление налога: Используйте, когда у вас есть цена без налога и нужна итоговая цена.
Удаление налога: Используйте, когда цена уже включает налог и нужна базовая цена.
Частая ошибка: Не вычитайте процент налога из цены с налогом. Нужно делить на (1 + ставка налога).
Похожие калькуляторы
Cite this calculator
Canonical URL: https://mathify.one/ru/finance/sales-tax
Cite as: Mathify. (2026). НДС / Налог с продаж. https://mathify.one/ru/finance/sales-tax
Use Cases
Budgeting for a purchase
Determine the total cost including sales tax before you go to the store or make an online purchase, so you can plan your spending accurately.
Example: You want to buy a $500 laptop and your local sales tax is 8%. The calculator shows you'll pay $540 in total.
Checking a receipt
Verify that the sales tax charged on a receipt is correct by entering the pre-tax price and the tax rate, or by entering the final price and tax amount to find the pre-tax price.
Example: Your receipt shows a final price of $107.50 with a 7.5% tax rate. The calculator confirms the pre-tax price was $100.
Frequently Asked Questions
- How do I use the sales tax calculator?
- Enter any two of the three values: pre-tax price, sales tax amount, or final price. The calculator will compute the missing value. For example, enter the pre-tax price and the sales tax rate to get the tax amount and final price.
- Can I calculate the pre-tax price from the final price?
- Yes. Enter the final price and the sales tax rate (or tax amount) to find the pre-tax price. The calculator will reverse the tax addition to give you the original amount before tax.
- What if I only know the sales tax rate and the final price?
- You can still use the calculator. Enter the final price and the tax rate (as a percentage) to find the pre-tax price and the tax amount. The calculator handles the math for you.
Tips & Common Mistakes
Tips
- Always enter the sales tax rate as a percentage (e.g., 8 for 8%), not as a decimal (0.08).
- If you know the tax amount but not the rate, you can enter the pre-tax price and the tax amount to find the rate.
- Double-check that you are using the correct tax rate for your location, as rates can vary by city, county, and state.
- Use the calculator to compare prices across different tax jurisdictions to see the true cost difference.
Common Mistakes to Avoid
- Entering the tax rate as a decimal instead of a percentage (e.g., 0.08 instead of 8) leads to incorrect results.
- Confusing the pre-tax price with the final price when entering values, especially when you have a receipt that shows the total.
- Forgetting that some items are tax-exempt; the calculator assumes a uniform tax rate, so adjust for exempt items manually.
Last updated: August 13, 2026