Calculation

Reseller entity exemption

Sales to resellers are exempted the way you expect, whichever way the data arrives.

You can now send Reseller as the buyer entity on a transaction, and Zamp treats the sale as exempt resale. It works through the API (calculations and transactions), CSV imports, and integrations.

If a different purpose is sent, such as Personal Use, that purpose wins and the sale is taxed normally. If tax was collected on the sale, resale does not apply and the transaction is taxed normally, matching how the Resale purpose already works. It applies to transactions sent or recalculated from now on.

More calculation updates

See all 13
  1. Tax calculator in the company appAnswer what-if tax questions yourself, instantly.
  2. 2026 sales tax holidaysHoliday exemptions are applied automatically, so you charge the right amount on the right days.
  3. More accurate locations for ZIP-only addressesSales get sourced to the right jurisdiction, even with limited address data.
  4. Nontaxable product tax codesA clear option for items you know are nontaxable, instead of workarounds like gift card codes.

Sales tax that keeps getting better, without more work for you.

Talk to a specialist about your states, your systems and what we take over.

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