Thursday
4th estimated tax payment for the prior year
past
IRS and Florida calendar
See it in the calendar
US tax deadlines 2026.
Every date that applies to anyone with a company or income in the US: income tax, S corporations and partnerships, nonresidents, FBAR, estimated tax, 1099s, the Florida annual report, payroll and sales tax. When a deadline falls on a weekend or holiday, the IRS rule is already applied.
Todayis the day
Individual and C corporation returns on extension
Thursday, October 15, 2026 · 1040 · 1120
This calendar is computed automatically from the rule behind each deadline. Today is .
January
Tuesday
Florida sales tax for the prior month, last day without penalty
past
February
Monday
Forms 1099-NEC and W-2 to the IRS and to recipients
Falls on Jan 31, which is a weekend. The deadline moves to the next business day.
past
Monday
Form 941 for Q4 and Form 940 (FUTA) for the prior year
Falls on Jan 31, which is a weekend. The deadline moves to the next business day.
past
Monday
Florida reemployment tax, Q4
Falls on Jan 31, which is a weekend. The deadline moves to the next business day.
past
Friday
Florida sales tax for the prior month, last day without penalty
past
March
Sunday
Delaware corporation annual report
past
Monday
S corporation and partnership returns, or extension request
Falls on Mar 15, which is a weekend. The deadline moves to the next business day.
past
Friday
Florida sales tax for the prior month, last day without penalty
past
April
Wednesday
Florida tangible personal property tax return
past
Wednesday
Individual income tax return, or extension request
past
Wednesday
C corporation return, or extension request
past
Wednesday
FBAR, foreign accounts above US$ 10,000
Automatic extension to October 15.
past
Wednesday
1st estimated tax payment
past
Monday
Florida sales tax for the prior month, last day without penalty
past
Thursday
Florida reemployment tax, Q1
past
Thursday
Form 941 for Q1
past
May
Friday
Florida annual report (Sunbiz)
US$ 400 penalty from the next day. LLC, corporation and partnership.
past
Wednesday
Florida sales tax for the prior month, last day without penalty
past
June
Monday
Delaware LLC annual tax
past
Monday
Nonresident income tax return, no US wages
past
Monday
2nd estimated tax payment
past
Monday
Florida sales tax for the prior month, last day without penalty
Falls on Jun 20, which is a weekend. The deadline moves to the next business day.
past
July
Monday
Florida sales tax for the prior month, last day without penalty
past
Friday
Florida reemployment tax, Q2
past
Friday
Form 941 for Q2
past
August
Thursday
Florida sales tax for the prior month, last day without penalty
past
September
Tuesday
S corporation and partnership returns on extension
past
Tuesday
3rd estimated tax payment
past
Monday
Florida sales tax for the prior month, last day without penalty
Falls on Sep 20, which is a weekend. The deadline moves to the next business day.
past
October
Thursday
Individual and C corporation returns on extension
today
Thursday
FBAR on extension
today
Tuesday
Florida sales tax for the prior month, last day without penalty
5 days
November
Monday
Florida reemployment tax, Q3
Falls on Oct 31, which is a weekend. The deadline moves to the next business day.
18 days
Monday
Form 941 for Q3
Falls on Oct 31, which is a weekend. The deadline moves to the next business day.
18 days
Friday
Florida sales tax for the prior month, last day without penalty
36 days
December
Tuesday
Nonresident return on extension
61 days
Tuesday
4th estimated tax payment for corporations
61 days
Monday
Florida sales tax for the prior month, last day without penalty
Falls on Dec 20, which is a weekend. The deadline moves to the next business day.
67 days
Rule applied: when a date falls on a Saturday, Sunday or federal holiday, the IRS deadline moves to the next business day. Emancipation Day in Washington, April 16, counts too. The Florida annual report does not move. Florida sales tax is due on the 1st of each month and accepted without penalty through the 20th; the table shows that last day, also moved to the next business day.
Frequently asked questions
What clients ask about deadlines.
What happens if I miss the S corporation or partnership deadline?
The IRS charges a penalty per month late and per owner, even if the company made no profit. If there is still time, an extension request on Form 7004 avoids it. If the deadline has passed, file as soon as possible to limit the amount.
Does an extension postpone the tax payment?
No. An extension postpones the filing, not the payment. The estimated tax must be paid by the original date, or the IRS charges interest and penalties on the difference.
I live in Brazil and own a US LLC. Which deadlines apply to me?
The company's, such as Form 1120 with Form 5472 for a single-member LLC owned by a foreigner, and Form 1040-NR if you have personal US income. The Florida annual report applies to every company registered in the state, wherever the owner lives.
Why did the date change from last year?
Because the day fell on a weekend or holiday. The IRS moves the deadline to the next business day, and this calendar applies the rule automatically every year.
No surprises
Want CKO to handle these deadlines for you?
Clients who do monthly bookkeeping with CKO do not need to follow this calendar. We do, and the return comes from their own books.
Chat on WhatsApp Or see monthly bookkeeping.