Our SAAS has to calculate sales tax on the fly for purchases in the US. We don't charge credit cards but invoice the customer later. However, the tax calc is th

Our SAAS has to calculate sales tax on the fly for purchases in the US. We don't charge credit cards but invoice the customer later. However, the tax calc is the same. We use an API [1] from a company called Strikeiron that was purchased by Informatica. We pay about $75 per month for tens of thousands of sales tax lookups by city/state/zip. If we were taking credit cards, we'd look at Stripe's solution. It would be much less expensive than what we are doing today. [1] https://www.informatica.com/products/data-quality/data-as-a-service/sales-tax-calculation.html https://www.informatica.com/products/data-quality/data-as-a-...