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California Sales Tax Penalties and Interest

If your business failed to collect or remit California sales tax, penalties and interest may significantly increase the total amount owed.

California penalties may apply when:

Interest accrues from the original due date and continues until payment is made.

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Common California Sales Tax Penalties

California may impose:

Penalties are generally calculated as a percentage of unpaid tax and may compound if exposure spans multiple periods.

California Back Sales Tax Liability

How Interest Is Calculated in California

Interest accrues from the original return due date until the liability is fully paid. Interest rates are determined by statute and may change annually. If nexus existed for multiple years, interest may substantially increase total liability.

California Economic Nexus Threshold Explained

Penalty Exposure During an Audit

If exposure is identified during a formal audit, additional penalties may apply.

Audit assessments may increase total liability through:

California Sales Tax Audit Risk

Can California Sales Tax Penalties Be Reduced

In some cases, businesses may request penalty abatement.

Penalty relief may be available when:

California Voluntary Disclosure Agreement

California Sales Tax Penalties FAQ

Penalties are generally calculated as a percentage of unpaid tax and may increase if noncompliance continues.

Yes. Interest accrues from the original due date until the balance is paid.

Penalty abatement may be available depending on facts and voluntary compliance efforts.

Concerned About California Penalties and Interest

If you suspect past nexus exposure, determining when liability began can limit total penalties and interest.

Run Your Nexus Risk Check

Estimate potential exposure before penalties escalate further.

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