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How many API calls does a typical transaction have?

The number of API-calls-per-transaction depends mostly on how many items your average customer places in his/her shopping cart when purchasing your products. For example, if your average customer puts 3 or 4 items in their cart, your total API count would breakdown as follows:

  1. Each item placed in the shopping cart will trigger a Lookup API call. This call tells TaxCloud to lookup the tax amount of each item, based on where it's being shipped to/from, how much it costs and any special taxability rules that may apply.
  2. If the customer subsequently purchases the items, TaxCloud will get a single "Capture" API call to tell us the official moment of taxation has occurred.
  3. You should also use our Address Verification API (which we highly recommend) to ensure your customers enter a valid destination address. This enables TaxCloud to provide the most accurate sales tax.
    Note: Without a valid shipping address, you may inadvertently under-collect sales tax and be liable to pay the difference.

In our experience, most TaxCloud businesses have between 4 and 7 API calls per transaction.