STATUTORY TAX CALENDAR · GOESRED INC
2026 – 2027 Small Business Tax Deadlines & Statutory Roll Calendar
Official statutory compliance calendar for small business tax deadlines. When a federal or state statutory deadline falls on a weekend or legal holiday, the filing and payment deadline automatically advances to the immediate next business day. Below are the verified rolled due dates for 2026 and 2027.
1. Executive Summary Quick Reference Table
Swipe or scroll horizontally on mobile devices to view statutory adjustments.
| Deadline / Form | Cadence | Statutory Due Date | 2026 Rolled Deadline | 2027 Rolled Deadline |
|---|---|---|---|---|
| Form 941 (Q1) | Quarterly | April 30 | Thursday, April 30, 2026 | Friday, April 30, 2027 |
| Form 941 (Q2) | Quarterly | July 31 | Friday, July 31, 2026 | Monday, August 2, 2027 |
| Form 941 (Q3) | Quarterly | October 31 | Monday, November 2, 2026 (Weekend Roll) | Monday, November 1, 2027 (Weekend Roll) |
| Form 941 (Q4) | Quarterly | January 31 | Monday, February 1, 2027 (Weekend Roll) | Monday, January 31, 2028 |
| 1040-ES (Q1) | Quarterly | April 15 | Wednesday, April 15, 2026 | Thursday, April 15, 2027 |
| 1040-ES (Q2) | Quarterly | June 15 | Monday, June 15, 2026 | Tuesday, June 15, 2027 |
| 1040-ES (Q3) | Quarterly | September 15 | Tuesday, September 15, 2026 | Wednesday, September 15, 2027 |
| 1040-ES (Q4) | Quarterly | January 15 | Friday, January 15, 2027 | Tuesday, January 18, 2028 (Weekend + MLK Roll) |
| 1120-ES (Q4) | Calendar Yr Corp | December 15 | Tuesday, December 15, 2026 | Wednesday, December 15, 2027 |
| 1099-NEC & W-2 | Annual Worker | January 31 | Monday, February 1, 2027 (Weekend Roll) | Monday, January 31, 2028 |
2. Core Tax Clock Deep-Dive Breakdown
Form 941 (Employer’s Quarterly Federal Tax Return)
Every employer who pays wages subject to federal income tax withholding or Social Security and Medicare taxes must file Form 941 quarterly with the IRS.
- Automatic Payroll vs. Manual Payment: Clients using modern payroll platforms (e.g. Gusto, QuickBooks Online Payroll, ADP) typically have their federal 941 tax liability debited automatically per payroll run. However, manual payroll filings require direct tax deposits via EFTPS (Electronic Federal Tax Payment System).
- October 31, 2026 Roll: October 31, 2026 falls on a Saturday. The statutory Q3 filing deadline advances to Monday, November 2, 2026.
- January 31, 2027 Roll: January 31, 2027 falls on a Sunday. The statutory Q4 filing deadline advances to Monday, February 1, 2027.
Quarterly Estimated Tax (Form 1040-ES & Form 1120-ES)
Sole proprietors, partners, LLC members, and S-corporation shareholders make quarterly estimated tax payments via Form 1040-ES. C-corporations pay corporate estimated tax via Form 1120-ES / Form 1120-W.
- 1040-ES Installment Cadence: April 15, June 15, September 15, and January 15 of the following year.
- January 15, 2028 Roll: January 15, 2028 falls on a Saturday. Sunday is January 16, and Monday, January 17, 2028 is Martin Luther King Jr. Day (Federal Legal Holiday). The Q4 estimated payment deadline advances to Tuesday, January 18, 2028.
- 1120-ES Corporate Cadence: Due on the 15th day of the 4th, 6th, 9th, and 12th months of the corporation’s fiscal year (for calendar year corporations: April 15, June 15, September 15, and December 15).
- Payment Portal: Individual estimated taxes can be paid via IRS Direct Pay or EFTPS. Corporate estimated taxes must be paid via EFTPS.
State Sales Tax Compliance (All 50 States)
State departments of revenue enforce monthly, quarterly, semi-annual, and annual sales tax filing schedules.
- Standard 20th Day Rule: Most states (such as Texas, Illinois, Florida, and Georgia) mandate sales tax returns on the 20th day of the month following the close of the reporting period.
- State-Specific Exceptions: California CDTFA and Utah require returns on the last day of the month. Maine mandates the 15th. Ohio mandates the 23rd. Kansas, New Mexico, Vermont, and Washington mandate the 25th. Massachusetts mandates the 30th.
- Weekend Roll Invariant: When the statutory sales tax day falls on a Saturday, Sunday, or state legal holiday, the due date advances to the next business day (e.g. Texas Comptroller WebFile, California CDTFA).
- The 5 NOMAD States: Alaska, Delaware, Montana, New Hampshire, and Oregon do not levy statewide sales taxes (though local municipalities in Alaska may levy local sales taxes).
Annual Worker Reporting (Form 1099-NEC & Form W-2)
Employers and businesses paying non-employee compensation of $600 or more must file Form 1099-NEC and Form W-2 annually with the IRS and Social Security Administration.
- Statutory Deadline: January 31 of the calendar year following payment.
- January 31, 2027 Roll: Because January 31, 2027 is a Sunday, all 2026 Forms 1099-NEC and W-2 are due on Monday, February 1, 2027.
- December 15 W-9 Audit Best Practice: Bookkeepers should audit contractor records by December 15 to collect completed IRS Form W-9s before issuing final December disbursements.
3. Bookkeeper vs. Client Responsibility Matrix
Administrative deadline tracking establishes transparent division of responsibility between the independent accounting firm and the small business owner.
| Compliance Task | Bookkeeper Responsibility | Client Responsibility |
|---|---|---|
| Form 941 Payroll | Reconcile wage journals and verify payroll tax liability matches general ledger. | Authorize payroll debit in payroll software (Gusto/ADP) or submit payment via EFTPS. |
| State Sales Tax | Calculate taxable gross sales, verify non-taxable exemptions, and compile return figures. | Log in to state Department of Revenue portal (e.g. WebFile, CDTFA) to file and remit funds. |
| Estimated Taxes | Calculate quarterly safe-harbor tax estimates and provide voucher amounts to client. | Remit quarterly tax payments via IRS Direct Pay or EFTPS using personal/corporate funds. |
| 1099-NEC & W-2 | Audit contractor thresholds ($600+), collect W-9s, and prepare filing files. | Approve worker list, verify contractor mailing addresses, and confirm electronic submission. |
| Filing Confirmation | Monitor client response on tracking board; follow up if task remains unconfirmed. | Click 1-tap “Mark Handled” confirmation link to notify bookkeeper that payment is complete. |
4. Frequently Asked Questions
When is Form 941 due for 2026 and 2027?
For 2026: Q1 is due Thursday, April 30, 2026, Q2 is due Friday, July 31, 2026, Q3 is due Monday, November 2, 2026 (October 31 Saturday roll), and Q4 is due Monday, February 1, 2027 (January 31 Sunday roll). For 2027: Q1 is due Friday, April 30, 2027, Q2 is due Monday, August 2, 2027, Q3 is due Monday, November 1, 2027, and Q4 is due Monday, January 31, 2028.
When are quarterly estimated tax payments (1040-ES) due?
For 2026 tax year: Q1 is due Wednesday, April 15, 2026, Q2 is due Monday, June 15, 2026, Q3 is due Tuesday, September 15, 2026, and Q4 is due Friday, January 15, 2027. For 2027 tax year: Q1 is due Thursday, April 15, 2027, Q2 is due Tuesday, June 15, 2027, Q3 is due Wednesday, September 15, 2027, and Q4 is due Tuesday, January 18, 2028 (January 15 Saturday + MLK Day holiday roll).
How does the weekend and legal holiday roll rule work?
Under Internal Revenue Code § 7503 and state revenue statutes, when a statutory tax deadline falls on a Saturday, Sunday, or official legal holiday, the deadline is automatically extended to the next business day.
Which states have no state sales tax?
The five NOMAD states with no statewide sales tax are Alaska, Delaware, Montana, New Hampshire, and Oregon.
What is the deadline for filing Form 1099-NEC and Form W-2?
For tax year 2026, the statutory deadline of January 31, 2027 lands on a Sunday, rolling the official filing deadline to Monday, February 1, 2027. For tax year 2027, the deadline is Monday, January 31, 2028.
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