When a grocery store customer redeems a discount coupon (either a store coupon or a manufacturer's coupon), how is sales tax calculated on the purchase?

Plain-English summary

A consumer wrote to the Comptroller's office asking how sales tax should be calculated when a grocery-store customer redeems a discount coupon. The Tax Policy Division responded that it doesn't matter whether the coupon is a store coupon or a manufacturer's coupon — either type reduces the taxable sales price of the item purchased, so sales tax is due only on the discounted price.

The letter also addresses a common point of confusion at checkout: some registers calculate the total bill (including tax) first, and only then apply the coupon credit. When that happens, the coupon credit applied to a taxable item should also reduce the tax charged, proportionally — the customer shouldn't end up paying tax calculated on the pre-coupon price.

The response is notably informal — the Comptroller's staff member who answered even mentions being "a taxpayer myself (as well as a coupon user)" and invites the requester to show the letter to any vendor who might be charging tax incorrectly on discount coupons.

What this means for you

Grocery and retail shoppers

If you use a coupon (store or manufacturer's) on a taxable item, you should only be charged sales tax on the price you actually pay after the coupon is applied — not on the item's original price before the discount.

Grocery stores and other retailers

Make sure your point-of-sale system computes tax on the post-coupon (discounted) price for taxable items, regardless of whether the coupon is store-issued or manufacturer-issued. If your system totals tax before applying coupon credits, confirm that the coupon credit also reduces the tax charged, not just the merchandise price.

Common questions

Q: Does it matter whether it's a store coupon or a manufacturer's coupon for sales tax purposes?
A: No. Both types of coupons reduce the taxable sales price, and tax is due only on the discounted price either way.

Q: My receipt shows tax calculated before the coupon was subtracted — is that correct?
A: Not necessarily. If the coupon reduces the price of a taxable item, the tax amount should be reduced accordingly, even if the register calculates the full bill (with tax) before crediting the coupon.

Q: Can I rely on this letter if a store charges me tax on the full price before a coupon discount?
A: The letter itself invites the requester to show it to any vendor/seller who may be charging tax in error on discount coupons, but as with any STAR letter, it was written for one taxpayer's specific facts and situation.

Citations and references

No specific statutes or administrative rules are cited in the text of this letter.

Source

• STAR search: https://star.comptroller.texas.gov/search?doc_type_code=L&tax_type_code=SST
• Opinion: https://star.comptroller.texas.gov/view/9602L1400G08

Original ruling text

February 29, 1996

Dear **:

I have received your letter requesting sales tax information.

Question: You specifically ask how the sales tax is computed when a customer
redeems discount coupons for items purchased at a grocery store.

Response: The discount coupon (whether it is a store coupon or manufacturer's
coupon) reduces the taxable value for taxable items purchased. Tax is due on
the discounted sales price of the merchandise. Often, the total bill
(including tax) is computed before the coupons are credited. When that happens,
the coupons are then credited to reduce the bill, and a coupon reducing the
price of a taxable item should reduce the tax amount accordingly.

As a taxpayer myself (as well as a coupon user), I appreciate your concerns.
Please feel free to show this letter to any vendor/seller you feel may be
charging you tax in error on your discount coupons.

This opinion is based on the facts presented. If there are additional or
different facts, the opinion could change.

If you have any questions, please don't hesitate to call one of our tax
specialists call toll free at 1-800-525-5555. The direct number is
512/463-4600. You may also write to Tax Policy Division, Comptroller of
Public Accounts.

Sincerely,

Joan Hale
Tax Policy Division

NOTE: Previous Accession Number 9602064L