Sales Tax Calculator: Charge (Add) the Tax to Listed (Before Tax) Prices, Calculate Final Tax Inclusive Purchase, Formula and Explanation

Add (Charge) Sales Tax to Listed Prices to Get Tax Inclusive Value

"Sales tax charged price" = "Price without sales tax" × (1 + "Sales Tax Rate%")

Latest Sales Tax charged prices

Sales Tax Amount and Sales Tax Rate

What is the "Sales Tax"? What is the "Sales Tax Rate"?

  • A sales tax is a consumption tax imposed by states, counties or/and cities and municipalities on the sale of goods and services. The sales tax is paid by the final consumer to the retailer at the point of sale as a percentage of the selling price of the sold good or service.
  • This percentage, called the Sales Tax Rate, varies from state to state, in California for example there is a general sales tax rate of around 6%. Cities and/or municipalities of California are also allowed to collect their own sales tax with rates ranging up to 1.75%. So a combined sales tax rate could build up to 7.75% or even more if we also add up the county sales tax rate... 6.5% is the lowest possible sales tax rate in California, in the city of Los Angeles.
  • The sales tax amount paid for by the final consumer is then transfered by the retailer to the state, county or/and municipality. A significant volume of documentation is gathered in order to prove which economic entity is ultimately liable for charging the end users the sales tax along with the price of sold items or services.
  • Let's say that a farmer sells apples to a company that produces cider. To avoid paying the sales tax, the cider maker must obtain a resale certificate from the government saying that it is not the end user. The cider maker then sells its product on to a retail store, which will charge the final customer the sales tax along with the price of cider.
  • Let's say that a person who lives in an area where the sales tax rate is 5% bought some cider for $50 dollars, then that person would have to pay a total of: 5% × $50 = 5/100 × $50 = $250/100 = $2.5 dollars in sales tax. The total bill containing the sales tax would be in the end: $50 dollars + $2.5 dollars = $52.5 dollars.

How to calculate the total final price of a good or service? How to charge the sales tax to the selling price (price without tax)?

  • "Sales tax amount" = "Sales tax rate%" × "Price without sales tax"
  • "Sales tax charged price" = "Price without sales tax" + "Sales tax amount" = "Price without sales tax" + "Sales tax rate%" × "Price without sales tax" = (1 + "Sales tax rate%") × "Price without sales tax"

An example of adding sales tax:

  • If "Sales tax rate" is 6.5% and we charge the sales tax on a 700 dollar "Price without sales tax":
    "Sales tax amount" = "Sales tax rate%" × "Price without sales tax" = 6.5% × 700 = 6.5/100 × 700 = 6.5 × 7 = 45.5;
    "Sales tax charged price" = "Price without sales tax" + "Sales tax amount" = 700 + 45.5 = 745.5;