Sales Tax Filing Workload Calculator

Estimates how many sales tax returns your store files each year, the hours and cost that takes by hand, and the net savings if you automate.

Your estimate

Returns filed per year...

Hours per year filing by hand...

Annual cost of manual filing...

Net annual savings with automation...

Estimates only. Assumptions are listed below, and you can change every input.

Every state where you are registered wants a return on its own schedule, and once you are collecting in several states the filing calendar becomes a real workload. Sellers tend to underestimate it because each return feels small on its own. Added up across states and months, the hours can rival a part-time job, and that is before you consider the cost of a late return.

This calculator multiplies the number of states you are registered in by the filings per year for your assigned frequency, then applies your hours per return and your hourly cost to get the annual manual cost. It then compares that with the cost of automation: the reduced hours per return you expect plus twelve months of software or service fees. The net savings figure can be negative, which honestly tells you automation is not worth it at your current volume.

How to use this tool

Count your active state registrations and pick the filing frequency most of them share.
Estimate honestly how long one return takes you today, and what an hour of that time is worth.
Enter the expected review time and monthly fee with automation, then compare the net savings with zero.

What the math assumes

Assumes every registered state uses the same filing frequency you select; in practice states assign monthly, quarterly or annual schedules individually.
Assumes each return takes the same number of hours, and values all of those hours at the single hourly rate you enter.
Assumes automation cost is the reduced hours per return times your hourly rate plus twelve months of the software fee, with no setup or onboarding time.
Ignores penalties, interest and the cost of amended returns, which usually make the manual cost higher than shown.
Net savings is simply manual cost minus automated cost and can be negative when your volume is low.

Frequently asked questions

How do states decide whether I file monthly, quarterly or annually?

Most states assign frequency based on how much tax you collect, with higher-volume sellers filing monthly. The state tells you your frequency when you register and can change it later as your volume changes.

Does a zero return still count as a filing?

Yes. If you hold a permit, most states expect a return for every period even when you collected nothing, and skipping it can trigger a notice or penalty. Count every registered state in the tool for that reason.

What if the net savings figure is negative?

That means the software fee is larger than the time it saves at your current volume. The figure usually flips positive as you add states or move to monthly filing, so re-run the numbers when your registrations change.

Link to this toolhttps://salestaxly.com/tools/filing-workload-calculator/

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