Amazon Sales Tax Calculator – Estimate Tax, Fees & Profit | Free Tool

  • Adam
  • January 3, 2026

Free Amazon sales tax calculator with fee estimator. Calculate sales tax, marketplace fees, FBA costs, and profit margins. Includes breakdown chart, CSV export, and print-friendly reports for sellers.

Amazon Sales Tax Calculator

Calculate sales tax, estimate Amazon marketplace fees, and determine your profit margins with this comprehensive calculator designed for Amazon sellers and shoppers. Export detailed breakdowns for bookkeeping and tax purposes.

Amazon Sales Tax Calculator

Enter the tax rate that applies to your order. Marketplace rules vary by location.
Estimate Amazon fees and your profit. These are approximate and depend on category and fulfillment.
Include sales tax in customer total
Remember my inputs

Order totals

$0.00
Customer pays
Item subtotal $0.00
Discounts $0.00
Taxable amount $0.00
Sales tax $0.00
Shipping $0.00
Order total $0.00

Selling on Amazon?

  • Estimate tax, fees, and profit in one place
  • Export a breakdown for bookkeeping

Order breakdown

Expand all groups
ItemDetailsAmount

How it works

This calculator helps you understand the total cost of an Amazon purchase including sales tax, or estimate your profit as an Amazon seller after marketplace fees. The tool computes order totals using transparent formulas based on your inputs.

Item Subtotal:
\( \text{Subtotal} = \text{Price} \times \text{Quantity} \)
After Discount:
\( \text{Discounted} = \max(0, \text{Subtotal} - \text{Discounts}) \)
Sales Tax:
\( \text{Tax} = \text{Taxable Amount} \times \left(\frac{\text{Rate}}{100}\right) \)
Order Total:
\( \text{Total} = \text{Discounted} + \text{Shipping} + \text{Tax} \)
Profit (when fees enabled):
\( \text{Profit} = \text{Net Revenue} - \text{Cost} \)
\( \text{Margin} = \frac{\text{Profit}}{\max(1, \text{Discounted})} \times 100 \)

Key definitions

Taxable amount: The base upon which sales tax is calculated. Depending on your jurisdiction, this may include only the item price, or item price plus shipping. Some locations have special rules for taxable amounts.

Tax rate: The percentage charged as sales tax. In the United States, this varies by state, county, and city. As of 2026, combined rates typically range from 0% (states with no sales tax) to over 10% in some localities.

Marketplace facilitator: Amazon acts as a marketplace facilitator in most U.S. states, meaning Amazon calculates, collects, and remits sales tax on behalf of sellers for transactions through its platform.

Common scenarios

Discounted items

When you apply a promo code or discount, sales tax is typically calculated on the reduced price (after discount), not the original list price. This calculator applies discounts first, then computes tax on the discounted amount.

Taxable shipping

Whether shipping charges are taxable depends on state and local rules. In some states, shipping is exempt from sales tax. In others, it's taxable if the items being shipped are taxable. Use the "Items + shipping" option if your location taxes shipping.

Marketplace fees

Amazon charges referral fees (typically 8-15% of the sale price for most categories, up to 20% for some) and fulfillment fees if you use FBA. As of 2026, FBA fulfillment fees for a typical small standard-size item range from approximately $3-$4 per unit, while large standard items range from $4-$7 depending on weight. These fees are estimates and vary by product category, size tier, and weight.

Frequently Asked Questions

What is sales tax?
Sales tax is a consumption tax imposed by state and local governments on the sale of goods and services. The tax rate varies by jurisdiction and is typically expressed as a percentage of the purchase price.
How do I determine the correct tax rate for my order?
The tax rate depends on the destination address (where the item is shipped). Amazon automatically calculates and applies the correct rate at checkout based on your location. For manual calculations, check your state and local tax authority websites for current rates.
Does Amazon charge sales tax on shipping?
It depends on the destination state's tax laws. Some states tax shipping charges when the shipped goods are taxable, while others exempt shipping from sales tax. Amazon applies the correct rule based on your location.
Are discounts applied before or after sales tax?
Discounts and promotional codes are applied to the item price first. Sales tax is then calculated on the discounted price, not the original price. This means you pay less tax when you use a discount.
What are marketplace facilitator laws?
Marketplace facilitator laws require platforms like Amazon to collect and remit sales tax on behalf of third-party sellers. As of 2026, all U.S. states with sales tax have marketplace facilitator laws, meaning Amazon handles sales tax for most transactions.
How accurate are the Amazon fee estimates?
The fee estimates are based on typical rates and are intended for general planning purposes. Actual Amazon fees depend on product category, size tier, weight, fulfillment method, and other factors. Always verify fees in your Seller Central account for precise calculations.
Can I export the breakdown for my records?
Yes, click "Show detailed breakdown" below the results, then use the "Export as CSV" button to download a spreadsheet-compatible file with all your inputs and calculated values. You can also print a formatted version using the print button.
What is the difference between referral fees and fulfillment fees?
Referral fees are a percentage of the sale price (typically 8-15%) that Amazon charges for using their marketplace. Fulfillment fees (FBA fees) are charged per unit for pick, pack, ship, and customer service when you use Fulfillment by Amazon. Both are separate charges.
Does the calculator save my inputs?
Only if you enable "Remember my inputs" in the optional fees section. When enabled, your preferences and last-used values are stored locally in your browser. No data is sent to external servers.
Why does my actual Amazon checkout total differ from this calculator?
Amazon applies the exact tax rates for your specific location, which may include state, county, city, and special district taxes. This calculator uses the rate you enter. Additionally, Amazon may apply promotions, Subscribe & Save discounts, or other adjustments not captured here.
Disclaimer: This calculator is for educational and planning purposes only. It does not constitute tax, legal, or financial advice. Sales tax rates, rules, and Amazon fee structures change frequently and vary by location and product. Always verify current rates with official sources and consult with qualified professionals for compliance and tax planning. OmniCalculator.Space is not responsible for any decisions made based on the calculator's output.

About this calculator

The Amazon Sales Tax Calculator was developed by OmniCalculator.Space to help both shoppers and sellers understand the complete cost structure of Amazon transactions. Whether you're comparing prices, budgeting for a purchase, or analyzing profit margins as a seller, this tool provides transparent, step-by-step calculations with exportable results.

We continuously update our tools based on current marketplace practices and user feedback. For questions or suggestions, visit our contact page.

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Additional resources

For authoritative information on sales tax:

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