Collecting sales tax is only half the job. You also have to report it and pay it to the state on time, and missing a due date can mean penalties and interest even when you collected every cent correctly. This guide explains how filing frequency is assigned, the sales tax filing deadlines in several large states, and simple habits that keep you on schedule.
Key takeaways
- States assign a filing frequency, usually monthly, quarterly or annually, based on how much tax you collect.
- Many states set the due date on the 20th of the month after the reporting period, but not all.
- Most states require a return even when you had no sales.
- Some states reward early or on-time filing with a small collection allowance.
How Sales Tax Filing Frequency Is Assigned
When you get a sales tax permit, the state revenue department assigns your filing frequency. It is usually based on your expected or actual tax liability:
- Monthly: businesses that collect larger amounts of sales tax
- Quarterly: the most common frequency for small businesses
- Annually: businesses with very low sales tax collections
States review your filings and may change your frequency as your business grows. Always follow the frequency the state assigns, not the one you prefer.
Sales Tax Filing Deadlines in Major States
Here are the general due dates in five large states. Your notice from the state is the final word, and dates falling on a weekend or holiday usually move to the next business day.
| State | General due date | Notes |
|---|---|---|
| Texas | 20th of the month after the reporting period | Timely filers can keep a 0.5% discount; prepayers can keep an extra 1.25% |
| California | Last day of the month after the reporting period | Quarterly prepayment accounts prepay by the 24th of the month after each of the first two months of the quarter |
| New York | 20 days after the end of the reporting period | Quarterly periods end on the last day of February, May, August and November |
| Florida | Due on the 1st, late after the 20th of the following month | Electronic filers who pay on time keep 2.5% of the first $1,200 of tax, up to $30 |
| Illinois | 20th of the month after the reporting period | Most returns are filed electronically |
New York’s quarters are a common trap: its sales tax quarters run March through May, June through August, September through November and December through February, not the calendar quarters used by most states.
What Goes on a Sales Tax Return
- Gross sales for the period
- Exempt sales, such as sales for resale backed by exemption certificates
- Taxable sales, often broken down by local tax jurisdiction
- Tax collected and any use tax you owe on your own purchases
- Credits, allowances and the amount due
Because local rates differ, many states ask you to report sales by county, city or jurisdiction code. Our rates by state pages show the rate breakdown for each location.
Real-World Example: A Quarterly Filer in Texas
A Dallas retailer files quarterly. For July through September, it made $40,000 in taxable sales at Dallas’s 8.25% combined rate, collecting $3,300 in sales tax. Its return for that quarter is due on October 20. If it files and pays on time, Texas lets it keep a 0.5% timely-filing discount, or $16.50; if it files late, it loses the discount and owes penalties and interest.
Zero Returns and Late Filing
Most states require you to file a return for every period, even when you had no taxable sales. Missing a zero return can still trigger a late-filing penalty and, in some states, a notice or estimated assessment. Late payment usually adds penalties plus interest that grows each month.
Tips to Never Miss a Sales Tax Filing Deadline
- Put every state’s due dates on a shared calendar with reminders a week in advance.
- Keep collected sales tax in a separate bank account; it is the state’s money, not revenue.
- File and pay electronically; many states require it.
- Reconcile your sales records with marketplace tax reports before each filing.
- Use a sales tax calculator to spot-check rates on your invoices.
Conclusion
Sales tax filing deadlines depend on the state and the frequency it assigns you. Know your due dates, file every period even when you had no sales, and pay on time to avoid penalties and keep any timely-filing allowances. For rates and local breakdowns, bookmark Tax Rate Center and our state sales tax pages.
Related: found an error after filing? See how to amend a sales tax return.
Frequently Asked Questions
When are sales tax returns due?
It depends on the state. Many states, including Texas, New York and Illinois, set the due date on the 20th of the month after the reporting period. California uses the last day of the following month.
How often do I have to file sales tax returns?
Your state assigns a filing frequency, usually monthly, quarterly or annually, based on how much sales tax you collect.
Do I need to file a sales tax return if I had no sales?
In most states, yes. If you hold a sales tax permit, you usually must file a return for every period, even if it shows zero sales.
What happens if I file my sales tax return late?
States typically charge a late-filing or late-payment penalty plus interest, and you may lose any timely-filing discount or collection allowance.
What if the due date falls on a weekend or holiday?
In most states, the deadline moves to the next business day. Confirm with your state revenue department.