What is the Wisconsin economic nexus threshold in 2026?

For 2026, Wisconsin's economic nexus threshold is $100,000, in effect since 2021-02-20. Remote sellers measure Wisconsin-sourced gross sales (typically over a rolling 12 months or the prior calendar year, depending on state rules) against this number to decide when registration begins.

What is the current Wisconsin economic nexus threshold?

$100,000, effective since 2021-02-20. Sales through marketplace facilitators are usually excluded from this count.

What counts toward the Wisconsin threshold?

Gross sales of tangible personal property and most services into Wisconsin, including resale transactions in some states. Marketplace-facilitated sales are typically excluded; check the specific rule.

How often is the Wisconsin threshold recalculated?

Most states apply a rolling 12-month lookback (some use the prior calendar year). You cross the threshold when your trailing-12-months sales exceed the dollar or transaction count.

Wisconsin Sales Tax Economic Nexus Threshold (2026)

Updated 2026-05-28

If your Thresholds business sells $100,000 into Wisconsin in a calendar year, you have economic nexus and must register, collect, and remit Wisconsin sales tax.

Wisconsin's economic nexus threshold, in detail

The current Wisconsin threshold is $100,000, in effect since 2021-02-20.

What counts toward the threshold: gross sales of tangible personal property AND most services delivered to Wisconsin customers. Resale sales may count in some states. Marketplace-facilitated sales typically do NOT count. Check the state's specific definitions before computing.

Counting periods

Most states apply the threshold on a rolling 12-month basis — look at the prior 12 months as of the end of each month. Some states look at the prior calendar year specifically. Wisconsin's rule is stated in its regulations; your registration must begin no later than the first day of the month after you cross, unless the state allows a grace period.

Common threshold-tracking mistakes

Measuring by calendar year only, missing when a rolling 12-month window would have triggered earlier.
Including tax in “gross sales”. The threshold uses pre-tax revenue; double-counting tax in the threshold figure can prematurely trigger registration.
Forgetting that the threshold resets — falling below in a subsequent year doesn't automatically deregister you. You must request deregistration through the Wisconsin DOR.

Wisconsin nexus note

Wisconsin sales tax nexus and economic nexus threshold: remote sellers without Wisconsin physical presence generally must register, collect, and remit Wisconsin sales or use tax when gross sales into Wisconsin exceed $100,000 in the previous or current calendar year. Wisconsin eliminated its former 200-transaction test effective February 20, 2021 under 2021 Wis. Act 1, so the current small-seller exception is sales-only. The annual gross-sales test includes taxable and nontaxable Wisconsin sales, sales the remote seller makes on behalf of other sellers, and marketplace-provider sales made on the remote seller's behalf. Effective January 1, 2020, marketplace providers collect and remit Wisconsin sales or use tax on all taxable products and services they facilitate for marketplace sellers; a remote marketplace seller is generally not liable for marketplace-facilitated Wisconsin tax, but it still tests the $100,000 exception using both direct and facilitated Wisconsin sales and must collect on taxable Wisconsin sales outside a collecting marketplace if it does not qualify for the exception. Registered remote sellers must collect applicable county, city, and premier resort area taxes where they apply, and Wisconsin assigns filing frequency from registration information and annual taxable sales. Wisconsin DOR source data last retrieved 2026-05-28.

What to do next

Read the full Wisconsin overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.

Frequently asked questions

What is the Wisconsin economic nexus threshold in 2026?: For 2026, Wisconsin's economic nexus threshold is $100,000, in effect since 2021-02-20. Remote sellers measure Wisconsin-sourced gross sales (typically over a rolling 12 months or the prior calendar year, depending on state rules) against this number to decide when registration begins.
What is the current Wisconsin economic nexus threshold?: $100,000, effective since 2021-02-20. Sales through marketplace facilitators are usually excluded from this count.
What counts toward the Wisconsin threshold?: Gross sales of tangible personal property and most services into Wisconsin, including resale transactions in some states. Marketplace-facilitated sales are typically excluded; check the specific rule.
How often is the Wisconsin threshold recalculated?: Most states apply a rolling 12-month lookback (some use the prior calendar year). You cross the threshold when your trailing-12-months sales exceed the dollar or transaction count.

Sources

date_retrieved: 2026-05-28