Basics Hub
Reverse Tax Basics
Reverse tax basics explain the meaning of reverse tax, tax-inclusive pricing, price before tax, tax amount included, and the difference between net, gross, pre-tax, and post-tax amounts.
Try the reverse tax calculator →Start Here
These pages define the terms used by the calculator and receipt examples.
W
What Is Reverse Tax?
Define reverse tax as working backward from a tax-inclusive total.
Read guide →
H
How Reverse Tax Works
See how the total, rate, multiplier, before-tax price, and included tax connect.
Read guide →
T
Tax-Inclusive vs Tax-Exclusive Pricing
Compare prices that already include tax with prices that add tax later.
Read guide →
P
Pre-Tax vs Post-Tax Price
Identify which amount is before tax and which amount already includes tax.
Read guide →
N
Net Price vs Gross Price
Understand net and gross price meanings in reverse tax calculation.
Read guide →
Concept foundation
What the Basics Pages Teach First
The basics pages define the language around reverse tax: tax-inclusive total, tax-exclusive amount, pre-tax price, post-tax price, net price, gross price, and included tax. These terms decide whether the calculator should divide, add, subtract, or avoid the calculation entirely.
Reverse tax
Works backward from a final total that already includes tax.
Tax-inclusive
Means the displayed or paid amount already contains tax.
Net and gross
Net usually means before tax; gross usually means tax-inclusive in pricing contexts.
Build the Concept First
- Identify whether the amount is before tax or after tax.
- Use the correct term page when receipt labels are unclear.
- Move to formula pages only after the price type is confirmed.
Terminology Mistakes
- Calling a subtotal tax-inclusive when it is actually before tax.
- Treating net and gross as universal terms without context.
- Using reverse tax for a price where tax has not been added yet.
Need the calculation now?
Use the related calculator, then return to the guides for rate choice, receipt checks, and formula details.
Try the reverse tax calculator →