Every state runs its own sales tax portal, return, and calendar. Most sellers file online, but the portal name, the form, and the due date change at each state line. This page collects the basics for 46 states in one table and links to a step-by-step guide for each one. New to filing? Start with how to submit sales tax and what remitting sales tax means, then find your state below.
Every guide below is built from the state tax agency's own pages, and each lists its sources and the date we checked them. This is educational information, not tax advice. Confirm current rules with the state before you file.
Key takeaways
- The portal is different in every state. California uses CDTFA Online Services, Texas uses Webfile, Illinois uses MyTax Illinois, and Massachusetts uses MassTaxConnect, for example.
- Due dates cluster around the 20th, but not always. Ohio's is the 23rd, Washington's monthly return is due the 25th, and Massachusetts uses the 30th day after the period.
- You register before you can file. A state permit or account is the first step in every state. See what a sales tax permit is.
- A zero return is still a return. Each guide explains what the state expects when you had no sales for the period.
- Late filing costs money in every state. Each guide lays out the penalty rules the state publishes.
How to file sales tax online in any state
The steps are the same in every state, even though the portals differ.
- Register with the state. You need a permit, licence, or account number before you can file. Registration is usually free or low cost and done online.
- Set up portal access. Most states require a separate login for the tax portal, and some require you to enrol before your first return.
- Find your filing schedule. The state assigns monthly, quarterly, semiannual, or annual filing based on how much tax you collect. Your registration notice controls it.
- Gather your sales for the period. Total sales, exempt sales, and the tax collected, split by location where the state asks for it. Our sales tax calculator shows current rates by address.
- File and pay by the due date. Many states apply a next-business-day rule when the due date falls on a weekend or holiday. Late returns and payments draw penalties and interest.
Filing sales tax online by state
| Guide | Portal | Return | Due date |
|---|---|---|---|
| How to file Alabama sales tax online | My Alabama Taxes | Sales tax return filed in My Alabama Taxes | The 20th of the month after the period; annual returns January 20 |
| How to file Arizona sales tax online | AZTaxes | Transaction Privilege Tax (TPT) return | The 20th of the month after the period |
| How to file Arkansas sales tax online | Arkansas Taxpayer Access Point (ATAP) | Sales and Use Tax report filed in ATAP | Monthly reports on the 20th; see the state's 2026 calendar for later dates |
| How to file California sales tax online | CDTFA Online Services | Form CDTFA-401 | Generally the last day of the month after the period |
| How to file Colorado sales tax online | Revenue Online | Form DR 0100 | The 20th of the month after the period |
| How to file Connecticut sales tax online | myconneCT | Form OS-114 | The last day of the month after the period |
| How to file Florida sales tax online | eFile and ePay on floridarevenue.com | Form DR-15 | Due on the 1st, late after the 20th of the following month |
| How to file Georgia sales tax online | Georgia Tax Centre | Form ST-3 | The 20th of the month after the period |
| How to file Hawaii sales tax online | Hawaii Tax Online (General Excise Tax, not a sales tax) | Form G-45, with annual Form G-49 | The 20th of the month after the period |
| How to file Idaho sales tax online | Taxpayer Access Point (TAP) | Form 850 | Monthly returns by the 20th of the following month |
| How to file Illinois sales tax online | MyTax Illinois | Form ST-1 (with ST-2) | The 20th of the month after the period |
| How to file Indiana sales tax online | INTIME | Form ST-103 | The 20th of the month after the period, or the 30th day if average monthly tax is $1,000 or less |
| How to file Iowa sales tax online | GovConnectIowa | Combined sales and use tax return | The last day of the month after the period; annual January 31 |
| How to file Kansas sales tax online | Kansas Customer Service Centre | Form ST-36 | The 25th of the month after the period |
| How to file Kentucky sales tax online | MyTaxes | Sales and use tax return (Form 51A102) | The 20th of the month after the period; the 25th for accelerated filers |
| How to file Louisiana sales tax online | LaTAP or Parish E-File; RemoteSellersFiling.la.gov for remote sellers | State or combined state and local sales tax return | The 20th of the month after the period |
| How to file Maine sales tax online | Maine Tax Portal | Sales and Use Tax Return | The 15th of the month after the period |
| How to file Maryland sales tax online | Maryland Tax Connect | Sales and Use Tax Return | The 20th of the month after the period |
| How to file Massachusetts sales tax online | MassTaxConnect | Form ST-9 | The 30th day after the period |
| How to file Michigan sales tax online | Michigan Treasury Online (MTO) | Form 5080 (monthly and quarterly) or 5081 (annual) | Monthly on the 20th; quarterly on April 20, July 20, October 20 and January 20; annual February 28 |
| How to file Minnesota sales tax online | e-Services | Sales and Use Tax return | Monthly on the 20th; quarterly on April 20, July 20, October 20 and January 20 |
| How to file Mississippi sales tax online | Taxpayer Access Point (TAP) | Sales and use tax return filed in TAP | The 20th day after the period ends |
| How to file Missouri sales tax online | MyTax Missouri | Form 53-1 (Form 53-V for vendor's use tax) | The last day of the month after the period; annual January 31 |
| How to file Nebraska sales tax online | NebFile for Business | Form 10 | The 20th of the month after the period |
| How to file Nevada sales tax online | My Nevada Tax | Combined Sales/Use Tax Return | The 20th of the month after the period |
| How to file New Jersey sales tax online | New Jersey Tax Portal | Form ST-50 | The 20th of the month after the period |
| How to file New Mexico sales tax online | Taxpayer Access Point (TAP) | Gross Receipts Tax Return (Form TRD-41413) | The 25th of the month after the period |
| How to file New York sales tax online | Sales Tax Web File | Forms ST-100, ST-101, ST-809 and ST-810 | 20 days after the period ends |
| How to file North Carolina sales tax online | NC eServices | Form E-500 (with E-536 for multi-county filers) | Monthly on the 20th of the following month; quarterly by the last day of the month after the quarter |
| How to file North Dakota sales tax online | ND TAP | Sales, use and gross receipts tax return | The last day of the month after the period |
| How to file Ohio sales tax online | Ohio Business Gateway (OH|TAX eServices) | UST-1 | The 23rd of the month after the period |
| How to file Oklahoma sales tax online | OkTAP | Form STS-20002-C | The 20th of the month after the month of sales; semiannual January 20 and July 20 |
| How to file Pennsylvania sales tax online | myPATH | Sales, Use, and Hotel Occupancy Tax Return | The 20th of the month after the period |
| How to file Rhode Island sales tax online | Rhode Island Taxpayer Portal | Form RI-STR | The 20th of the month after the period |
| How to file South Carolina sales tax online | MyDORWAY | Form ST-3 | The 20th of the month after the period |
| How to file South Dakota sales tax online | Filing & Tax Payment portal (EPath) | State and municipal sales and use tax return | Returns by the 20th; electronic payments by the 25th |
| How to file Tennessee sales tax online | Tennessee Taxpayer Access Point (TNTAP) | Sales and Use Tax Return | The 20th of the month after the period; annual returns January 20 |
| How to file Texas sales tax online | Webfile (Comptroller eSystems) | Form 01-114 | The 20th of the month after the period |
| How to file Utah sales tax online | Taxpayer Access Point (TAP) | Form TC-62S or TC-62M | The last day of the month after the period |
| How to file Vermont sales tax online | myVTax | Form SUT-451 | The 25th of the month after the period; the 23rd for February |
| How to file Virginia sales tax online | Virginia Tax business account or eForms | Form ST-1 | The 20th of the month after the period |
| How to file Washington sales tax online | My DOR | Combined Excise Tax Return | Monthly on the 25th; quarterly at the end of the month after the quarter |
| How to file Washington DC sales tax online | MyTax.DC.gov | Form FR-800M, FR-800Q or FR-800A | The 20th of the month after the period |
| How to file West Virginia sales tax online | MyTaxes | Form CST-200CU | The 20th of the month after the period |
| How to file Wisconsin sales tax online | My Tax Account | Form ST-12 | The last day of the month after the period; the 20th for early monthly filers |
| How to file Wyoming sales tax online | Wyoming Internet Filing System (WYIFS) | Form 41 (monthly and quarterly) or Form 42 (annual) | The last day of the month after the period |
Due dates in the table are the general rule. Your own schedule depends on the filing frequency your state assigns, so use the guide for your state and check the state's calendar. Our sales tax due dates page lists the rules for every state and lets you download calendar files.
Filing in more than one state
Each state you register in adds a portal, a login, a return form, and a deadline. A seller with nexus in five states has five calendars to keep straight, plus penalties when one slips.
Kintsugi monitors your sales for free so you can see where you have crossed a threshold. When you register, Kintsugi's sales tax filing software prepares and files your returns on each state's schedule and remits the payment. Filing starts at $75 per filing or registration, with no per-state subscription. See pricing or book a demo.
Related state guides
- Late filing penalties and timely-filing discounts by state, to compare what each state charges for a late return and what it gives for filing on time.
- Sales tax guides by state, for rates, nexus rules, and exemptions in every state.
- Resale certificates by state, for documenting wholesale sales.
- Economic nexus explained, for when a state can require you to register.
Filing sales tax online FAQs
Do I file sales tax online or by mail?
Most states now expect returns to be filed online, and several require it. The state guides above note where paper is still allowed and where it is not. Check the state's own rules for your filing type.
How do I know which state portal to use?
Use the portal run by the state's tax agency for the state where you are registered. The table above names the portal and links to the step-by-step guide for each of the 46 states covered.
Do I have to file if I had no sales?
In most states, yes. A registered seller usually files a return for every period, even a zero return. Each state guide explains what its agency expects.
What happens if I file late?
States charge penalties and interest for late returns and late payments. The amounts differ by state, and each guide lists the rules the state publishes, along with any way to ask for a waiver.
Can one tool file in every state?
Yes. Kintsugi files returns in the states where you are registered, using each state's portal and schedule. See the sales tax filing software page for how it works.
