How to Remove Tax from a Price (Step by Step)

When You Need This

• You have a receipt showing a total that includes tax, and want to know the original price
• You’re reconciling an expense and need the pre-tax amount separately
• You want to verify that the correct tax rate was charged
• You’re doing bookkeeping or VAT reclaim and need to separate the tax component

Step 1 — Find the Tax Rate

Check the receipt. Most receipts show the tax rate or the tax amount separately. If the tax amount is shown:

Tax rate = Tax amount / Pre-tax subtotal × 100

If neither is shown (some simplified receipts or international purchases), find your local combined rate:

• US: check your state + local rate (use the preset dropdown in the calculator)
• UK: standard VAT = 20%
• Australia: GST = 10%
• Canada: GST = 5%, or your province’s HST rate

Step 2 — Apply the Formula

Pre-tax price = Total ÷ (1 + tax rate as decimal)

Convert the percentage to a decimal first: 8% = 0.08, 20% = 0.20.

Example: $54.00 total, 8% tax:

Pre-tax = $54.00 ÷ 1.08 = $50.00
Tax     = $54.00 − $50.00 = $4.00

Step 3 — Verify

Check: Pre-tax × (1 + rate) = Total?

$50.00 × 1.08 = $54.00 ✓

Handling Multiple Items at Different Rates

Some receipts apply different rates to different categories (e.g., food vs. non-food in the UK, or luxury goods at a higher VAT rate). Calculate each item separately:

1. Grocery items at 0% VAT: pre-tax = total (no tax applied)
2. Standard items at 20% VAT: pre-tax = total / 1.20
3. Add all pre-tax amounts together for the invoice total

Use the calculator’s “Add another item” feature for this — each row can have its own rate.

Common Rates Cheat Sheet

For Businesses: Bookkeeping Notes

When entering expenses in accounting software:

• Credit card statement shows the total (tax-inclusive)
• Your ledger entries need the pre-tax amount in the expense account
• The tax portion goes into a VAT Reclaim, GST Input Credit, or Sales Tax Expense account

Always record the pre-tax amount as the expense, not the total. Using the total overstates your deductible expenses by the tax amount.