Máy tính thuế bán hàng

Add tax to a price, extract tax from a total, or find the tax rate. Quick and easy.

Thông tin chi tiết của bạn

Loại tính toán

Thêm thuế bán hàng vào giá Trích xuất thuế từ tổng số Tìm Thuế suất

Giá trước thuế

Tax Rate (%)

Choose a calculation type, enter your numbers, and click Calculate to see your results and breakdown.

Hướng dẫn sử dụng hoàn chỉnh

What is Sales Tax?

Sales tax is a consumption tax charged at the point of purchase. In the US, rates vary by state and often by locality. Some states have no sales tax. This calculator helps you add tax to a pre-tax price, work backwards from a total to find the pre-tax amount and tax, or determine the effective tax rate when you know both amounts.

Total = Price × (1 + Rate) | Tax = Total − Price | Rate = (Total − Price) ÷ Price

Add Tax uses the first formula; Extract Tax solves for Price and Tax from Total and Rate; Find Rate solves for the effective rate from Price and Total.

Các khái niệm chính

Add Tax

You have a price before tax and a tax rate. The calculator adds the tax to get the total you pay.

Trích Thuế

You have a total (including tax) and the tax rate. The calculator splits it into pre-tax amount and tax amount.

Tìm tỷ lệ

You have the price before tax and the total after tax. The calculator finds the effective tax rate (and tax amount).

Cách sử dụng máy tính này

Select the calculation type: Add Tax, Extract Tax, or Find Rate.
Enter the values in the fields shown (price, total, and/or tax rate as applicable).
Click Calculate to see the result in the hero card, breakdown chart, and detail boxes.
Use the US State reference below to look up typical rates if needed.

Hiểu kết quả của bạn

Hero result

The main result shows the most important number for your mode: total amount (Add Tax), before-tax amount (Extract Tax), or effective tax rate (Find Rate).

Detail boxes

Before tax, tax amount, and total are shown so you can verify the math. In Find Rate mode, the effective tax rate is also displayed.

Hiểu biểu đồ

Breakdown chart

A doughnut or pie chart shows the split between before-tax amount and tax amount. This gives you a quick visual of how much of the total is tax.

US State Sales Tax Rates (Reference)

Base state rates only. Local taxes may apply.

Tình trạng	Tỷ lệ	Tình trạng	Tỷ lệ
California	7.25%	Oregon	0%
Texas	6.25%	Montana	0%
New York	4.00%	Delaware	0%
Florida	6.00%	New Hampshire	0%

Ghi chú quan trọng

This tool is for estimation only. Actual tax may vary by jurisdiction and product type.
Some items are exempt from sales tax (e.g. groceries in some states). Check your local rules.