Online sellers face destination tax, marketplace facilitator rules, and tax-inclusive payout reports. This guide links each concept to the free calculators on this site.
Online sellers face destination tax, marketplace facilitator rules, and tax-inclusive payout reports. This guide links each concept to the free calculators on this site.
Step 2 — Your breakdown
We reverse the tax using the standard formula:
Enter a total and tax rate to see your breakdown.
For most remote retail, the rate follows where the customer receives the product. Your warehouse location matters for nexus, but the percentage on the receipt follows ship-to.
That is why zip-level and state pages both matter: you need the combined rate for the delivery address on each order.
Amazon, Etsy, Walmart Marketplace, and others may collect and remit tax on your behalf in many states. You still need books that separate tax from merchandise for profit analysis.
Direct-to-consumer Shopify or WooCommerce stores usually require you to configure tax collection and file returns where you have nexus.
Finance teams reverse tax from gross order totals when exports lack a clean subtotal. The same technique supports pricing tests (“$59 out the door” → required pre-tax shelf price).
Use specialized tools for each channel: Amazon calculator, Shopify calculator, and zip-based rate entry for custom carts.
You paid $108.25 including 8.25% sales tax and need the merchandise amount for bookkeeping.
Pre-tax: $100.00 | Tax: $8.25 | Total: $108.25
Reverse math is for splitting receipts and estimates—it does not replace filing obligations, nexus analysis, or professional tax advice. Confirm rates with your state revenue department or marketplace reports before remitting.
Depends on nexus in each state—volume and presence rules vary. Consult a CPA; this site provides educational math tools only.
Nexus thresholds vary by state (sales volume and transaction counts). Consult a CPA; these pages provide educational math only.
