Summer is winding down, and it’s almost time for back-to-school shopping. If your state offers a sales tax holiday — fewer than 20 states do this year — you might be able to give your wallet a bit of a break.

And that’s true whether or not you have children: These sales-tax holidays can be a good time to buy new clothes, a computer or other items.

Sales tax holidays: How they work

Many states offer their sales tax holidays in August. Most states limit the types of items that are eligible for the sales tax holiday — clothing is the most common qualified purchase — and they usually put a dollar limit on how much of the purchase will be tax-free.

But many states let you buy multiple items tax-free, as long as each of those purchases is below the state’s limit. For example, a common dollar

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