# Sales Tax Calculator

> Calculate subtotal, sales tax, and total for one or more items.

Page: https://askcalculators.com/calculator/sales-tax-calculator/
Definition: https://askcalculators.com/calculator/sales-tax-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/sales-tax-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/sales-tax-calculator/?price=100&quantity=1&taxRate=8.25

## Inputs
- price: Price per item; type=money; required; default=100; min=0
- quantity: Quantity; type=number; required; default=1; min=1; max=1000000
- taxRate: Sales tax rate; type=percent; required; default=8.25; min=0; max=100

## Outputs
- total: Total; format=currency; primary
- subtotal: Subtotal; format=currency
- taxAmount: Sales tax; format=currency
- totalPerItem: Total per item; format=currency

## Formula
Tax = price × quantity × tax rate; total = subtotal + tax

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.