Inputs
Discount is applied first, then sales tax is applied to the discounted price. Enter tax % manually.
Add extra coupon discount (%)
Applies after the main discount (stacking).
How to use
- Enter the original price.
- Select discount type: % or amount.
- Enter sales tax % (your state/city may differ).
- Optional: enable an extra coupon % for stacking discounts.
- Click Calculate to see final price + breakdown.
Notes
- Discount-first-then-tax is the common checkout flow, but you can switch tax base if needed.
- Monthly/seasonal promos may stack differently by store — use this as an estimate.
Privacy & disclaimer
Local-only: ONDO runs in your browser and does not store values. Sharing a link may include values in the URL — avoid sensitive info.
Read disclaimer
- Tax rules vary by jurisdiction and can change. Always confirm at checkout.
- Results are for reference only; merchant rounding and fees may apply.
FAQ
Does this auto-detect my state's tax rate?
No. Enter tax % manually because rates vary by location and can change.
Do you apply tax before or after discount?
Default is tax after discount (common). You can switch the tax base in the inputs.
Can I stack a coupon after a discount?
Yes. Enable “extra coupon %” and enter your coupon percent.