What is trailing nexus?

Most states make you keep filing for a while after you drop below their threshold. California runs through the next full calendar year. Texas uses a rolling twelve months. We track each state's rule so you cancel on the right date, not too early.

Will I get in trouble for canceling a permit?

Not if you do it in the right order. We file every outstanding and final return first, then guide the cancellation. The real risk is canceling early or skipping a final return, which is exactly what we prevent.

Which platforms do you support?

Amazon, Shopify and WooCommerce, with BigCommerce, Etsy, Walmart and eBay supported through manual entry. You can also enter your states by hand on any platform.

Do you file my returns?

Yes. During the wind-down we file the zero-dollar returns so nothing lapses, and once you're deregistered in a state there's nothing left to file.

How is this different from Avalara or TaxJar?

They help you register and file more. We help you deregister and file less. We only charge for the states you keep.

No. TrailingZero is software that flags deregistration opportunities and handles filings. For complex situations we tell you when to bring in your accountant.

Is TrailingZero live?

Yes. Free audits are live now — run yours in minutes. Connect a store read-only or enter your registered states by hand to see which you can cancel and what it saves.

Does Montana have a statewide sales tax?

No. Montana does not impose a statewide sales tax.

Do I need a sales tax permit in Montana?

Generally no statewide permit is required because there's no statewide sales tax.

No. This page is general education built from public sources and the rules change often. Confirm your specific situation with the state's tax authority or your accountant before you register or deregister.

Deregistration guide

How to cancel a sales tax permit in Montana

Montana does not levy a statewide sales tax, which changes the question entirely. It's one of the handful of states with no statewide sales tax, so there's generally no state permit to hold or cancel.

By John DoeReviewed by Jane Doe, CPAUpdated June 2026How we verify

Verify before you act

Sources currently disagree on some details for this state — especially the trailing-nexus window and how to deregister — so we've flagged it for manual review. Treat this page as a starting point and confirm with Montana Department of Revenue or a tax professional before you register or deregister.

Statewide sales tax?: No
Anything to cancel?: Generally nothing
Tax authority: Montana Department of Revenue

Source: Montana Department of Revenue

Short answer

There's nothing to cancel. Montana has no statewide sales tax, so most sellers have no registration here in the first place.

Does Montana have a sales tax?

Montana has no statewide general sales tax and therefore no economic nexus rules, thresholds, or registration requirements for remote sellers of tangible personal property or most services. The post-Wayfair economic nexus framework is entirely inapplicable.

If you see a Montana line on a filing bill

If a "Montana" charge shows up on your filing bill, confirm what it actually is — a different tax type, or simply an error. The states that drain filing budgets are the ones with a statewide sales tax where your nexus has quietly ended.

Where TrailingZero fits

TrailingZero connects to your store read-only, maps where you actually have nexus state by state, and maps every state where you're registered and ignores the ones — like Montana — where there's nothing to file. During any wind-down it can file the zero-dollar returns so nothing lapses — and you only pay for the states you genuinely keep. Run a free audit anytime; this page is free education either way.

Montana How to cancel FAQ

Does Montana have a statewide sales tax?: No. Montana does not impose a statewide sales tax.
Do I need a sales tax permit in Montana?: Generally no statewide permit is required because there's no statewide sales tax.
Is this tax advice?: No. This page is general education built from public sources and the rules change often. Confirm your specific situation with the state's tax authority or your accountant before you register or deregister.

See what you can stop paying in Montana

Run a free audit and see which registrations you can drop — in minutes, no card required.

Start free →Free audit · no card required.

Other states

See all states →

Sources

Primary sources reviewed for this page. Data current as of June 2026.

TrailingZerois software, not a CPA or law firm, and this page is general education — not tax or legal advice. State rules and thresholds change frequently; confirm your situation with the state's tax authority or your accountant before you register or deregister. See how we research and review this data in our editorial & accuracy policy.