Do I need to file a zero return if I have nexus but no sales?

In most states, yes. If you’re registered and have an active permit in a state, you’re required to file a return every period, even if you had zero sales and collected zero tax. Missing a zero return triggers the same late penalties as missing a return with a balance due.

Why states require zero returns

A zero return is an affirmative communication: you’re telling the state that you didn’t forget, you just had no activity. Without it, the state has no way to distinguish between a seller who filed nothing because they had no sales and a seller who filed nothing because they’re ignoring their obligation.

From the state’s perspective, “no return received” and “delinquent seller” look identical in their system. The penalty process runs automatically, it doesn’t wait for you to explain.

The states that don’t always require them

A handful of states allow you to skip filing if you had no activity in the period. Texas is the most notable example, if you had zero sales tax liability in a period, you may qualify for “no tax due” filing exemptions in some situations. A few other states have similar provisions.

This is the exception, not the rule. If you’re unsure whether a specific state requires zero returns, the safest assumption is that it does, file and you’ll never have a problem.

The practical impact for SST-enrolled sellers

If you’re enrolled in the SST program and registered in all 24 member states, you’re required to file monthly in every one of them, including months where you had no sales in some of those states. For a $5M brand selling primarily in the Northeast, a zero return for Wyoming in March is still a required filing.

This is one reason a CSP is worth using even for low-volume states. A CSP handles zero returns automatically. You don’t have to track which states had no activity each month and manually submit returns for each one.

What happens if you’ve been skipping zero returns

If you’ve been registered in states and skipping zero returns for periods with no sales, you likely have delinquency notices accumulating, or will when the state’s reconciliation process catches up. The exposure is real but usually manageable.

Most states will abate penalties for zero-liability periods if you come into compliance, explain the situation, and request an abatement. The case is stronger when the underlying liability is genuinely zero, you weren’t avoiding tax, you just didn’t understand the zero-return requirement.

If you’re unsure how many periods you’ve missed and in how many states, your sales tax provider can run an account health check to assess the scope before you contact the states.

Related: What happens if I miss a sales tax filing deadline?