What is a sales tax holiday?
A sales tax holiday is a temporary period — usually a weekend — during which a state waives sales tax on specific categories of goods. Most fall into three buckets: back-to-school (clothing, school supplies, computers), emergency preparedness (generators, batteries, tarps), and energy-efficient appliances. Around 18 US states run at least one sales tax holiday each year, with the exact dates and eligible items varying by state.
How to maximize savings
Plan large category purchases — laptops, generators, kids' wardrobe refresh — around the holiday window in your state. Per-item caps usually apply (e.g., 'computers under $1,500'), so the savings ceiling is bounded. The largest single-purchase savings typically come from emergency-preparedness holidays in Florida and Texas where high-ticket generators are eligible.
Online vs in-store rules
Most states extend the holiday to online purchases as long as the order is placed and accepted during the holiday window — even if the item ships afterward. Marketplace sellers and major retailers handle the tax exemption automatically at checkout. Check your state's published rules before assuming an online order qualifies.
Common edge cases
Bundled items where part is eligible and part isn't are usually taxable in full. Layaway purchases generally qualify if final payment falls within the window. Returns made after the holiday but for items bought during it are refunded with no tax. Coupons applied before tax can push items under the per-item cap and into eligibility.