Published: September 23, 2026
Q4 opens with rate changes taking effect October 1, seasonal spikes from Halloween retail, and Columbus Day shifting some office schedules—all while your regular filing calendar keeps moving. Between closing out September’s books and tracking any new October 1 rate changes in states where you have nexus, it’s easy to lose track of your October sales tax due date this month.
That’s why we’ve put together this state-by-state guide to October sales tax due dates, so you can spend less time cross-referencing calendars and more time running your business. The good news: fewer deadlines shift this month than last, since most standard 20th-of-the-month deadlines land on a weekday. The exception is any state 25th or last day of the month due dates; October 25 falls on a Sunday and October 31 falls on a Saturday, pushing those deadlines to October 26 or November 2.
Note: Due dates have been adjusted based on each state’s weekend and holiday filing rules. Businesses should always verify filing requirements directly with the appropriate state tax authority.
Overwhelmed by multi-state filing obligations?
Sales Tax Due Dates FAQ
Sales tax due dates are the deadlines businesses must meet to file sales tax returns and remit collected sales tax to state tax authorities.
Sales tax returns may be due monthly, quarterly, annually, or on another assigned schedule depending on the state.
State tax agencies determine sales tax filing frequencies based factors such as average monthly tax liability, revenue volume, and filing history.
No. Sales tax due dates vary by state, filing frequency, tax type, and other administrative rules.
Many states extend filing deadlines to the next business day when a due date falls on a weekend or state/federal holiday.
Yes. States may temporarily or permanently change sales tax filing deadlines because of holidays, emergency relief, administrative updates, or legislative changes.
Missing a sales tax return due date can result in penalties, interest charges, collection actions, and possible account enforcement by the state tax authority.
Businesses commonly use in-house compliance calendars, filing software, or outsourced sales tax services to monitor multistate filing deadlines.
October Sales Tax Due Dates by State: 2026 Filing Calendar
The table below covers every state’s October sales tax due date, along with filing frequency and notes on any deadline that shifts.
| State | Filing Frequency | Day Due | Notes |
|---|---|---|---|
| Alabama | Monthly; Quarterly | October 20 | |
| Alaska | Monthly; Quarterly | November 2 | No statewide sales tax. Remote seller returns for participating local jurisdictions are generally due the last day of the month. The deadline moves to November 2 since October 31 falls on a Saturday. |
| Arizona | Monthly; Quarterly | October 20 | |
| Arkansas | Monthly; Quarterly | October 20 | |
| California | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| Colorado | Monthly; Quarterly | October 20 | Most home-rule city returns are also due October 20. |
| Connecticut | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| District of Columbia | Monthly; Quarterly; Annual | October 20 | Annual returns also due October 20. |
| Florida | Monthly; Quarterly | October 19 | |
| Georgia | Monthly; Quarterly | October 20 | |
| Hawaii (GET) | Monthly; Quarterly | October 20 | |
| Idaho | Monthly; Quarterly | October 20 | |
| Illinois | Monthly; Quarterly | October 20 | |
| Indiana | Early Monthly; Monthly | October 20; October 30 | Early monthly filings are due October 20; standard monthly filings are due October 30. |
| Iowa | Monthly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| Kansas | Monthly; Quarterly | October 26 | Standard October 25 deadline falls on a Sunday and moves to the next business day. |
| Kentucky | Monthly; Quarterly | October 20 | |
| Louisiana | Monthly; Quarterly | October 20 | Parish filing deadlines generally align with the state deadline. |
| Maine | Monthly; Quarterly | October 15 | |
| Maryland | Monthly; Quarterly | October 20 | |
| Massachusetts | Monthly; Quarterly | October 30 | |
| Michigan | Monthly; Quarterly | October 20 | |
| Minnesota | Monthly; Quarterly | October 20 | |
| Mississippi | Monthly; Quarterly | October 20 | |
| Missouri | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| Nebraska | Monthly; Quarterly | October 20 | |
| Nevada | Monthly; Quarterly | October 20 | |
| New Jersey | Quarterly | October 20 | Returns are filed quarterly; most businesses remit monthly prepayments. |
| New Mexico (GRT) | Monthly; Quarterly | October 26 | Standard October 25 deadline falls on a Sunday and moves to the next business day. |
| New York | Monthly | October 20 | |
| North Carolina | Monthly; Quarterly | October 20; November 2 | Monthly returns are due October 20; the standard October 31 deadline for quarterly filers falls on a Saturday and moves to November 2. |
| North Dakota | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| Ohio | Monthly | October 23 | |
| Oklahoma | Monthly | October 20 | |
| Pennsylvania | Monthly; Quarterly | October 20 | |
| Rhode Island | Monthly; Quarterly | October 20 | |
| South Carolina | Monthly; Quarterly | October 20 | |
| South Dakota | Monthly; Quarterly | October 20 | |
| Tennessee | Monthly; Quarterly | October 20 | |
| Texas | Monthly; Quarterly | October 20 | |
| Utah | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
| Vermont | Monthly; Quarterly | October 26 | Standard October 25 deadline falls on a Sunday and moves to the next business day. |
| Virginia | Monthly; Quarterly | October 20 | |
| Washington | Monthly; Quarterly | October 26; November 2 | Standard monthly deadline (the 25th) falls on a Sunday and moves to October 26; standard quarterly deadline (the 31st) falls on a Saturday and moves to November 2. |
| West Virginia | Monthly; Quarterly | October 20 | |
| Wisconsin | Early Monthly; Monthly; Quarterly | October 20; November 2 | Early monthly filings are due October 20; monthly and quarterly filings are due November 2 (standard October 31 deadline falls on a Saturday). |
| Wyoming | Monthly; Quarterly | November 2 | Standard October 31 deadline falls on a Saturday and moves to the next business day. |
Looking for another month?
- Alabama Department of Revenue: Due Date Calendar for Taxes
- Alaska Remote Seller Sales Tax Commission: FAQs for Sellers
- Arizona Department of Revenue: Due Dates
- Arkansas Department of Finance & Administration: Due Dates
- California Department of Tax and Fee Administration: Filing Dates for Sales & Use Tax Returns
- Colorado Department of Revenue: Colorado Taxes & Fees Due Date Guide
- Connecticut State Department of Revenue Services: Sales and Use Tax Information
- District of Columbia Office of Tax and Revenue: General Sales Tax FAQs
- Florida eServices Calendar of Electronic Payment Deadlines: For Calendar Year 2026
- Georgia Department of Revenue Sales & Use Tax Due Dates
- State of Hawaii Department of Taxation: General Excise Tax (GET) Information
- Idaho State Tax Commission: Sales Tax Filing and Paying
- Illinois Revenue: Requirements for Retailers who File Form ST-1
- Indiana Department of Revenue: Filing Deadlines
- Iowa Department of Revenue: Filing Frequency & Return Due Dates
- Kansas Tax Calendar of Due Dates
- Kentucky Department of Revenue: June 2026
- Louisiana Department of Revenue: 2026 Filing Dates
- Maine Revenue Services: Sales and Use Tax Rates & Due Dates
- Comptroller of Maryland: Filing Deadlines and Due Dates
- Massachusetts DOR Tax Due Dates and Extensions
- Michigan Taxes: Sales and Use Taxes
- Minnesota Department of Revenue: Sales Tax Return Filing Due Dates
- Mississippi Department of Revenue: Business Tax Frequently Asked Questions
- Missouri Department of Revenue: 2026 Tax Calendar
- Nebraska Department of Revenue Tax Calendar
- State of Nevada Department of Taxation: Nevada Revises Sales and Use Tax Deadlines Under AB 594
- New Jersey Division of Taxation: Filing and Remitting Sales and Use Tax
- New Mexico Taxation and Revenue Department: Gross Receipts Tax Return
- New York State Department of Taxation and Finance: 2026 tax filing dates
- North Carolina Department of Revenue: Sales and Use Tax Frequently Asked Questions
- North Dakota Tax: Sales and Use Tax Deadlines
- Ohio Department of Taxation: Due Dates
- Oklahoma Tax Commission: Business Sales & Use Tax
- Pennsylvania Department of Revenue 2026 Due Dates
- Rhode Island Division of Taxation: Sales & Use Tax
- South Carolina Business One Stop: Tax Due Dates
- South Dakota Department of Revenue: Upcoming Events & Dates
- Tennessee Department of Revenue: Sales and Use Tax Filing–Filing Due Dates
- Texas Comptroller: Sales and Use Tax
- Utah State Tax Commission: Tax Commission Due Dates
- Vermont Department of Taxes: Sales and Use Tax
- Virginia Department of Taxation: Business FAQs
- Washington State Department of Revenue: Filing frequencies & due dates
- West Virginia Tax Division: Tax Calendar June 2026
- State of Wisconsin Department of Revenue: Businesses Calendar
- Wyoming Code R. §§ 2-5 – Reporting
