Which sales tax holidays apply to online orders and how should a store honor them?

How sales tax holidays actually work

A sales tax holiday is a short window, often a weekend, during which a state suspends tax on specific categories of goods. The most common theme is back to school, covering clothing, footwear, and school supplies, sometimes with computers included. Other states run holidays for disaster preparedness supplies, energy-efficient appliances, or firearms and hunting gear. Each holiday has its own category definitions and, almost always, a per-item price cap: an item at or below the cap is exempt, and an item above the cap is usually fully taxable rather than exempt up to the cap. Related: Common Sales Tax Mistakes Small Sellers Make

The rules apply to online orders in every state that runs a holiday, and in most states participation is mandatory for sellers with nexus. You cannot simply keep charging tax and let customers ask for refunds. What varies is the timing rule: most states exempt an online order if it is placed and paid during the holiday, even if it ships or is delivered afterward, but a few look at delivery or acceptance instead. Check the specific rule for each state where you collect before the holiday begins. Related: US Sales Tax Basics for Online Sellers

Keep reading: US Sales Tax Basics for Online Sellers, What Economic Nexus Means and Why It Matters, Origin vs Destination Based Sales Tax, Explained. See how SalesTaxly helps you us sales tax rates and lookup for online stores.

Preparing your product catalog

The main preparation work is mapping your catalog to the holiday categories. A state's definition of clothing may exclude accessories, sporting equipment, and protective gear; its definition of school supplies may be a specific list of items rather than a general description. Your tax engine needs product tax codes on every item so it can apply the exemption to eligible items and leave the rest alone. If your catalog uses one generic tax code for everything, the holiday cannot be applied accurately, and the work to fix that has to happen weeks in advance. Related: Product Taxability: Why Not Everything Is Taxed the Same

Price caps introduce a second layer. The cap applies per item, not per order, and states differ on whether discounts and coupons are considered when testing the cap. Most states test the price after seller discounts, so a coupon that brings an item under the cap makes it exempt. Bundles are a known trap: if you sell a bundle that mixes eligible and ineligible items at one price, several states treat the whole bundle as taxable unless the eligible items are separately priced.

Local taxes and partial participation

In some states, the holiday applies to state tax only, and local jurisdictions can choose whether to participate. That produces addresses where the state portion is exempt but the county or city portion is still due, and the combined rate for the weekend depends on the exact delivery address. A rate service that handles holidays at the jurisdiction level will return the correct partial rate; one that simply zeroes out tax for the category will over-exempt in non-participating localities.

Shipping charges add another wrinkle. In states that tax shipping as part of the sales price, shipping on an exempt holiday item is usually exempt as well, but some states allocate shipping when an order mixes eligible and ineligible items, and a few include shipping in the price cap test. These are exactly the kinds of details that state revenue departments publish in a holiday notice a few weeks before the event, so read the notice for each state rather than relying on last year's memory.

Running the holiday and cleaning up after

Before the holiday, confirm the start and end date and time in the state's time zone, place a test order for an eligible item and one for an item just over the cap, and check that the tax line behaves correctly in a participating and a non-participating locality if the state has that split. Watch order processing on the first day, because a category mapping error will show up as a wave of customer messages within hours. Have a plan for refunding tax quickly on eligible orders if something goes wrong.

After the holiday, your sales report needs to show holiday-exempt sales separately, because most states want them reported as exempt sales or a deduction rather than simply omitted. Keep the state notice, your category mapping, and your test orders together as documentation. Holidays often change from year to year, with new categories, revised caps, or a moved date, so treat each year's preparation as fresh work built on last year's notes. Related: Why Sales Tax Rates Change So Often