Sales tax change frequency by state

Zip2Tax compares the sales tax change frequency of the states. Ever wonder how your state measures up?

It’s generally accepted that there are around 11,000 sales tax jurisdictions across this great and diverse country of ours. This fact alone would seem to be a fairly reasonable argument for the outsourcing of sales and use tax rates from a company such as Zip2Tax. As the head of marketing for Zip2Tax I am always trying to understand our customer’s needs better. I found myself wondering about the sales tax change frequency for all these jurisdictions. I mean, 11,000 rows in a document might be manageable if they only changed their rates every few years or so, right?

So I sat down and with my trusty Excel spread sheet and a large cup of strong coffee and started going back through our research documentation counting the number of months that there had been any sales tax changes in each state. I wanted to determine which states had the highest sales tax change frequency. I sampled a three-year period from December 2015 going back through January 2013.

… fully one-third of the time that these states CAN make sales or use tax rate changes, they DO.

When the numbers were crunched I had some surprises in store, to be sure. For one, the states that provide Zip2Tax with the most new customers have no obvious correlation with which states had the highest sales tax change frequency. In fact, California and New York were only slightly above average.

The standout in this sample was Alabama which turned out to be far and away the leader with changes in 30 out of the 36 months – that’s 83% of the time. This also helped to dash my hopes of discovering a hotbed of customer need for our product since Alabama has so far not proven to be a great source of new business.
sales tax change frequency

Arizona came in second with 14 changes over that same period. Georgia, Louisiana, Oklahoma and Texas all tie for third place with 13 sales tax rate changes over 36 months. That translates to mean that fully one-third of the time that these states CAN make sales or use tax rate changes, they DO. Not to overstate the obvious, but that is more frequently than quarterly updates.

… more than two-thirds, updated that tax a minimum of once a year, and by the end of 3 years, 86% of the states had made changes…

In fact, 68% of the states that collect a sales tax, that’s more than two-thirds, updated that tax a minimum of once a year, and by the end of 3 years, 86% of the states had made changes.

So as I drained the last of my cold coffee I felt some gratification in that even though sales tax will remain an extremely complex moving target in nearly all 50 states, at least it should mean a steady supply of customers for sales tax rate providers like Zip2Tax for the foreseeable future.

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