2027 tax deadline calendar
Every 2027 federal filing date FundTaxes tracks for a calendar-year Opportunity Zone fund, a real estate partnership and a business that files 1099s, with the rule behind each.
Business compliance, 15 dates
Feb 1, 2027Form 1099-MISC recipient copies (tax year 2026)Form 1099-NEC to recipients and the IRS (tax year 2026)Forms W-2/W-3 to the SSA and W-2 to employees (tax year 2026)Mar 15, 2027Form 1120-S due (tax year 2026)Form 7004 extension deadline for Form 1120-S (tax year 2026)Schedule K-1 to shareholders (tax year 2026)Mar 31, 2027Form 1099-MISC e-file through IRIS (tax year 2026)Apr 15, 2027Corporate estimated tax installment 1 of 4 (tax year 2027)Form 1120 due (tax year 2026)Form 7004 extension deadline for Form 1120 (tax year 2026)Jun 15, 2027Corporate estimated tax installment 2 of 4 (tax year 2027)Sep 15, 2027Corporate estimated tax installment 3 of 4 (tax year 2027)Form 1120-S due (tax year 2026, extended)Oct 15, 2027Form 1120 due (tax year 2026, extended)Dec 15, 2027Corporate estimated tax installment 4 of 4 (tax year 2027)
- Business compliance
| Date | Line | Filing |
|---|---|---|
| February 1, 2027 | Business compliance | Form 1099-MISC recipient copies (tax year 2026) |
| February 1, 2027 | Business compliance | Form 1099-NEC to recipients and the IRS (tax year 2026) |
| February 1, 2027 | Business compliance | Forms W-2/W-3 to the SSA and W-2 to employees (tax year 2026) |
| March 15, 2027 | Business compliance | Form 1120-S due (tax year 2026) |
| March 15, 2027 | Business compliance | Form 7004 extension deadline for Form 1120-S (tax year 2026) |
| March 15, 2027 | Business compliance | Schedule K-1 to shareholders (tax year 2026) |
| March 31, 2027 | Business compliance | Form 1099-MISC e-file through IRIS (tax year 2026) |
| April 15, 2027 | Business compliance | Corporate estimated tax installment 1 of 4 (tax year 2027) |
| April 15, 2027 | Business compliance | Form 1120 due (tax year 2026) |
| April 15, 2027 | Business compliance | Form 7004 extension deadline for Form 1120 (tax year 2026) |
| June 15, 2027 | Business compliance | Corporate estimated tax installment 2 of 4 (tax year 2027) |
| September 15, 2027 | Business compliance | Corporate estimated tax installment 3 of 4 (tax year 2027) |
| September 15, 2027 | Business compliance | Form 1120-S due (tax year 2026, extended) |
| October 15, 2027 | Business compliance | Form 1120 due (tax year 2026, extended) |
| December 15, 2027 | Business compliance | Corporate estimated tax installment 4 of 4 (tax year 2027) |
| Date | Filing | Rule |
|---|---|---|
| Form 1099-MISC recipient copies (tax year 2026) | IRC §6041(d) | |
| Form 1099-NEC to recipients and the IRS (tax year 2026) | IRC §6071(c); §6041(d) | |
| Forms W-2/W-3 to the SSA and W-2 to employees (tax year 2026) | IRC §6071(c); §6051(a) | |
| Form 1120-S due (tax year 2026) | IRC §6072(b) | |
| Form 7004 extension deadline for Form 1120-S (tax year 2026) | IRC §6081(a); Form 7004 instructions | |
| Schedule K-1 to shareholders (tax year 2026) | IRC §6037(b) | |
| Form 1099-MISC e-file through IRIS (tax year 2026) | IRC §6071(b) | |
| Corporate estimated tax installment 1 of 4 (tax year 2027) | IRC §6655(c) | |
| Form 1120 due (tax year 2026) | IRC §6072(a) | |
| Form 7004 extension deadline for Form 1120 (tax year 2026) | IRC §6081(a); Form 7004 instructions | |
| Corporate estimated tax installment 2 of 4 (tax year 2027) | IRC §6655(c) | |
| Form 1120-S due (tax year 2026, extended) | IRC §6081(a); Form 7004 | |
| Corporate estimated tax installment 3 of 4 (tax year 2027) | IRC §6655(c) | |
| Form 1120 due (tax year 2026, extended) | IRC §6081(a); Form 7004 | |
| Corporate estimated tax installment 4 of 4 (tax year 2027) | IRC §6655(c) |
Proposed-rule dates come from regulations not yet final (REG-116506-25). Fiscal-year entities file on the same months counted from their year end.
Your own dates, in your calendar
This page is the calendar-year version. Add your fund or business and FundTaxes works out its own dates, fiscal years included, and gives you a private calendar link for Google Calendar, Outlook or Apple Calendar.
How dates roll
When a due date falls on a Saturday, Sunday or legal holiday, it moves to the next business day. Legal holidays are those in the District of Columbia, so Emancipation Day on April 16 can move an April 15 date. IRC §7503; Pub 509
| Statutory date | Falls on | Due | For |
|---|---|---|---|
| Jan 31, 2027 | Sunday | Feb 1, 2027 | Forms 1099-NEC and W-2 |
| Feb 28, 2027 | Sunday | Mar 1, 2027 | Form 1099-MISC on paper |
| Mar 15, 2027 | Monday | Same day | Forms 1065, 1120-S, 8996 and 7004 |
| Mar 31, 2027 | Wednesday | Same day | Form 1099-MISC e-filed |
| Apr 15, 2027 | Thursday | Same day | Form 1120 and corporate estimated tax |
| Jun 15, 2027 | Tuesday | Same day | Corporate estimated tax |
| Sep 15, 2027 | Wednesday | Same day | Extended Forms 1065 and 1120-S |
| Oct 15, 2027 | Friday | Same day | Extended Form 1120 |
| Dec 15, 2027 | Wednesday | Same day | Corporate estimated tax |
Legal holidays in 2027
- New Year’s Day, Friday
- Martin Luther King Jr. Day, Monday
- Washington’s Birthday, Monday
- DC Emancipation Day, Friday
- Memorial Day, Monday
- Juneteenth, Friday
- Independence Day, Monday
- Labor Day, Monday
- Columbus Day, Monday
- Veterans Day, Thursday
- Thanksgiving Day, Thursday
- Christmas Day, Friday
Get the dates for your own entities
Add a fund or a business: its testing dates, returns, extensions, K-1s and 1099s are worked out from its entity type and year end.