**Steps**

- Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax.
- Once you’ve calculated sales tax, make sure to add it to the original cost to get the total cost.

29 Mar 2019

### What is the current sales tax in California?

7.25%

### How is 8.25% sales tax calculated?

In other words, if the sales tax rate is 6%, divide the sales taxable receipts by 1.06. If the sales tax rate is 7.25%, divide the sales taxable receipts by 1.0725.

## How do I file sales tax in California?

**You have three options for filing your sales tax:**

- File online – File online at the California Board of Equalization.
- File by mail – You can use California’s short form sales and use tax return and file through the mail, though you must pay online if your estimated monthly tax liability is $10,000 or more.

### How do you add 7 sales tax?

You can multiply the dollar amount by 1.X, where X represents the sales tax after dividing by 100. For example, if something is $20 and the sales tax is 7% you would multiply $20 times 1.07 and you would pay $21.40. Or add 7 cents for every dollar.

### How do you add tax on a calculator?

Divide the sales tax percentage by 100 to convert it from a percentage to a decimal. For example, if the sales tax percentage is 5.5 percent, use the calculator to divide 5.5 by 100 to get 0.055. Add 1 to the sales tax expressed as a decimal from step 2. For example, if you had 0.055, you would add 1 to get 1.055.

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