BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//thresholds//Thresholds calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Thresholds — Estimated taxes 2026–27
X-WR-CALDESC:Estimated taxes deadlines and announcements.
X-WR-TIMEZONE:America/New_York
REFRESH-INTERVAL;VALUE=DURATION:P1W
BEGIN:VEVENT
UID:est-tax-2026-q1@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20260415
DTEND;VALUE=DATE:20260416
SUMMARY:Estimated tax — first installment for 2026
DESCRIPTION:Estimated tax — first installment for 2026\n\nApplies if you 
 pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-taxe
 s/due-dates/\n\nSource: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — first installment for 2026
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2026-q2@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20260615
DTEND;VALUE=DATE:20260616
SUMMARY:Estimated tax — second installment for 2026
DESCRIPTION:Estimated tax — second installment for 2026\n\nApplies if you
  pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-tax
 es/due-dates/\n\nSource: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — second installment for 2026
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2026-q3@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20260915
DTEND;VALUE=DATE:20260916
SUMMARY:Estimated tax — third installment for 2026
DESCRIPTION:Estimated tax — third installment for 2026\n\nApplies if you 
 pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-taxe
 s/due-dates/\n\nSource: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — third installment for 2026
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2026-q4@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270115
DTEND;VALUE=DATE:20270116
SUMMARY:Estimated tax — fourth installment for 2026
DESCRIPTION:Estimated tax — fourth installment for 2026\n\nApplies if you
  pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-tax
 es/due-dates/\n\nSource: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — fourth installment for 2026
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2026-q4-waiver@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270201
DTEND;VALUE=DATE:20270202
SUMMARY:File your 2026 return and pay in full — and the January 15 instal
 lment is not required
DESCRIPTION:File your 2026 return and pay in full — and the January 15 in
 stallment is not required\n\nApplies if you skipped the fourth installment
 .\n\nFebruary 1 rather than January 31 because January 31\, 2027 is a Sund
 ay.\n\nDetails: https://thresholds.pages.dev/estimated-taxes/due-dates/\n\
 nSource: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:File your 2026 return and pay in full — and the January 15 in
 stallment is not required
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2027-q1@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270415
DTEND;VALUE=DATE:20270416
SUMMARY:Estimated tax — first installment for 2027
DESCRIPTION:Estimated tax — first installment for 2027\n\nApplies if you 
 pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-taxe
 s/due-dates/\n\nSource: https://www.irs.gov/forms-pubs/about-form-1040-es
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:scheduled
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — first installment for 2027
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:federal-filing-2026@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270415
DTEND;VALUE=DATE:20270416
SUMMARY:Federal income tax return for 2026 due (or file for an extension)
DESCRIPTION:Federal income tax return for 2026 due (or file for an extensio
 n)\n\nApril 15\, 2027 is a Thursday. District of Columbia Emancipation Day
  falls on Friday April 16\, 2027\, so it does not push the deadline.\n\nDe
 tails: https://thresholds.pages.dev/estimated-taxes/\n\nSource: https://ww
 w.irs.gov/publications/p509
URL:https://thresholds.pages.dev/estimated-taxes/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Federal income tax return for 2026 due (or file for an extensio
 n)
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2027-q2@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270615
DTEND;VALUE=DATE:20270616
SUMMARY:Estimated tax — second installment for 2027
DESCRIPTION:Estimated tax — second installment for 2027\n\nApplies if you
  pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-tax
 es/due-dates/\n\nSource: https://www.irs.gov/forms-pubs/about-form-1040-es
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:scheduled
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — second installment for 2027
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2027-q3@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20270915
DTEND;VALUE=DATE:20270916
SUMMARY:Estimated tax — third installment for 2027
DESCRIPTION:Estimated tax — third installment for 2027\n\nApplies if you 
 pay estimated tax.\n\nDetails: https://thresholds.pages.dev/estimated-taxe
 s/due-dates/\n\nSource: https://www.irs.gov/forms-pubs/about-form-1040-es
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:scheduled
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — third installment for 2027
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:federal-filing-extension-2026@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20271015
DTEND;VALUE=DATE:20271016
SUMMARY:Extended federal income tax return for 2026 due
DESCRIPTION:Extended federal income tax return for 2026 due\n\nApplies if y
 ou filed an extension.\n\nDetails: https://thresholds.pages.dev/estimated-
 taxes/\n\nSource: https://www.irs.gov/publications/p509
URL:https://thresholds.pages.dev/estimated-taxes/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:fixed
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Extended federal income tax return for 2026 due
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:est-tax-2027-q4@thresholds
DTSTAMP:20260907T000000Z
DTSTART;VALUE=DATE:20280118
DTEND;VALUE=DATE:20280119
SUMMARY:Estimated tax — fourth installment for 2027
DESCRIPTION:Estimated tax — fourth installment for 2027\n\nApplies if you
  pay estimated tax.\n\nJanuary 15\, 2028 is a Saturday and Monday January 
 17 is Martin Luther King Jr. Day\, so the installment is due Tuesday Janua
 ry 18\, 2028.\n\nDetails: https://thresholds.pages.dev/estimated-taxes/due
 -dates/\n\nSource: https://www.irs.gov/forms-pubs/about-form-1040-es
URL:https://thresholds.pages.dev/estimated-taxes/due-dates/
CATEGORIES:TAX
X-THRESHOLDS-CERTAINTY:scheduled
TRANSP:TRANSPARENT
CLASS:PUBLIC
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER:-P6DT15H
DESCRIPTION:Estimated tax — fourth installment for 2027
END:VALARM
END:VEVENT
END:VCALENDAR