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PRODID:-//Merchant Financial Advisory//MFA Insights//EN
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METHOD:PUBLISH
X-WR-CALNAME:When Is a Business Tax Return Due\, and What If You Missed I
 t?
X-WR-TIMEZONE:America/New_York
REFRESH-INTERVAL;VALUE=DURATION:P1D
X-PUBLISHED-TTL:P1D
BEGIN:VEVENT
UID:business-tax-return-deadline-late-0@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270315
DTEND;VALUE=DATE:20270316
SUMMARY:Form 1065 and Form 1120-S due for calendar-year 2026
DESCRIPTION:File the return or Form 7004 for a six-month extension. Late 
 penalty for returns due in 2027: $260 per partner or shareholder per mont
 h\, up to 12 months.\n\nDetails: https://mfa-advisory.com/blog/business-t
 ax-return-deadline-late/\nGeneral information\, not tax advice. Merchant 
 Financial Advisory\, mfa-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Form 1065 and Form 1120-S due for calendar-year 2026
TRIGGER:-P7D
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END:VEVENT
BEGIN:VEVENT
UID:business-tax-return-deadline-late-1@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270315
DTEND;VALUE=DATE:20270316
SUMMARY:NY: Form CT-3-S due (calendar-year S corporations)
DESCRIPTION:File within 2½ months after the year ends\, or request six m
 ore months with Form CT-5.4 and pay the estimated tax.\n\nDetails: https:
 //mfa-advisory.com/blog/business-tax-return-deadline-late/\nGeneral infor
 mation\, not tax advice. Merchant Financial Advisory\, mfa-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:NY: Form CT-3-S due (calendar-year S corporations)
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:business-tax-return-deadline-late-2@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270415
DTEND;VALUE=DATE:20270416
SUMMARY:Form 1120 due for calendar-year 2026 C corporations
DESCRIPTION:Form 7004 gives six more months to file\, not to pay. Minimum
  late-filing penalty for returns due in 2027: the smaller of $535 or the 
 tax due.\n\nDetails: https://mfa-advisory.com/blog/business-tax-return-de
 adline-late/\nGeneral information\, not tax advice. Merchant Financial Ad
 visory\, mfa-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Form 1120 due for calendar-year 2026 C corporations
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:business-tax-return-deadline-late-3@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270415
DTEND;VALUE=DATE:20270416
SUMMARY:NY: Form CT-3 due (calendar-year C corporations)
DESCRIPTION:Form CT-5 gives a six-month extension if the properly estimat
 ed tax is paid by April 15.\n\nDetails: https://mfa-advisory.com/blog/bus
 iness-tax-return-deadline-late/\nGeneral information\, not tax advice. Me
 rchant Financial Advisory\, mfa-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:NY: Form CT-3 due (calendar-year C corporations)
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:business-tax-return-deadline-late-4@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270415
DTEND;VALUE=DATE:20270416
SUMMARY:NJ: CBT-100S due (calendar-year 2026)
DESCRIPTION:The 15th day of the month after the federal due month. A six-
 month extension needs Form CBT-200-T and at least 90% of the tax paid.\n\
 nDetails: https://mfa-advisory.com/blog/business-tax-return-deadline-late
 /\nGeneral information\, not tax advice. Merchant Financial Advisory\, mf
 a-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:NJ: CBT-100S due (calendar-year 2026)
TRIGGER:-P7D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:business-tax-return-deadline-late-5@mfa-advisory.com
DTSTAMP:20261113T125803Z
DTSTART;VALUE=DATE:20270517
DTEND;VALUE=DATE:20270518
SUMMARY:NJ: CBT-100 due (calendar-year 2026)
DESCRIPTION:The 15th day of the month after the federal due month\; May 1
 5\, 2027 is a Saturday\, so it moves to Monday.\n\nDetails: https://mfa-a
 dvisory.com/blog/business-tax-return-deadline-late/\nGeneral information\
 , not tax advice. Merchant Financial Advisory\, mfa-advisory.com
URL:https://mfa-advisory.com/blog/business-tax-return-deadline-late/
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:NJ: CBT-100 due (calendar-year 2026)
TRIGGER:-P7D
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