BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Collective//Solopreneur Tax Calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Collective 2026 Tax Deadlines
X-WR-CALDESC:Every major tax filing\, estimated payment\, and retirement co
 ntribution deadline due during calendar year 2026\, adjusted for weekends 
 and federal holidays. Informational only\, not tax\, legal\, or accounting
  advice. Deadlines are set by the IRS and adjusted here for weekends and f
 ederal holidays\; always confirm specifics with a tax professional. State 
 deadlines vary and may apply separately.
BEGIN:VEVENT
UID:2026-prior-year-q4-estimated@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260115
DTEND;VALUE=DATE:20260116
SUMMARY:2025 Q4 estimated tax payment due
DESCRIPTION:Fourth-quarter estimated payment for the 2025 tax year.\n\nAppl
 ies to: ALL.\n\nInformational only\, not tax\, legal\, or accounting advic
 e. Deadlines are set by the IRS and adjusted here for weekends and federal
  holidays\; always confirm specifics with a tax professional. State deadli
 nes vary and may apply separately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 Q4 estimated tax payment due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-q4-payroll-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260202
DTEND;VALUE=DATE:20260203
SUMMARY:2025 Q4 payroll tax return due
DESCRIPTION:Federal and state quarterly payroll return\, for entities runni
 ng payroll.\n\nJan 31\, 2026 falls on a Saturday\, so this shifts to the n
 ext business day.\n\nApplies to: ALL\, PAYROLL.\n\nInformational only\, no
 t tax\, legal\, or accounting advice. Deadlines are set by the IRS and adj
 usted here for weekends and federal holidays\; always confirm specifics wi
 th a tax professional. State deadlines vary and may apply separately.
CATEGORIES:ALL,PAYROLL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 Q4 payroll tax return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-w2-1099-filings@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260202
DTEND;VALUE=DATE:20260203
SUMMARY:2025 annual W-2/1099 filings due
DESCRIPTION:For businesses that ran payroll or paid 1099 contractors in 202
 5.\n\nJan 31\, 2026 falls on a Saturday\, so this shifts to the next busin
 ess day.\n\nApplies to: ALL\, PAYROLL.\n\nInformational only\, not tax\, l
 egal\, or accounting advice. Deadlines are set by the IRS and adjusted her
 e for weekends and federal holidays\; always confirm specifics with a tax 
 professional. State deadlines vary and may apply separately.
CATEGORIES:ALL,PAYROLL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 annual W-2/1099 filings due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-scorp-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260316
DTEND;VALUE=DATE:20260317
SUMMARY:2025 S Corp return due or extend
DESCRIPTION:Extending moves the filing deadline to Sep 15\, 2026. An extens
 ion payment is still due if tax is owed.\n\nMar 15\, 2026 falls on a Sunda
 y\, so this shifts to the next business day.\n\nApplies to: S CORP.\n\nInf
 ormational only\, not tax\, legal\, or accounting advice. Deadlines are se
 t by the IRS and adjusted here for weekends and federal holidays\; always 
 confirm specifics with a tax professional. State deadlines vary and may ap
 ply separately.
CATEGORIES:S CORP
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 S Corp return due or extend is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-timely-scorp-election@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260316
DTEND;VALUE=DATE:20260317
SUMMARY:Timely S Corp election due
DESCRIPTION:For a Jan 1\, 2026 effective date. Miss it and the IRS still gr
 ants relief for late elections in defined circumstances\, so ask before as
 suming you have to wait a year.\n\nMar 15\, 2026 falls on a Sunday\, so th
 is shifts to the next business day.\n\nApplies to: LLC.\n\nInformational o
 nly\, not tax\, legal\, or accounting advice. Deadlines are set by the IRS
  and adjusted here for weekends and federal holidays\; always confirm spec
 ifics with a tax professional. State deadlines vary and may apply separate
 ly.
CATEGORIES:LLC
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Timely S Corp election due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-retirement-employer-scorp@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260316
DTEND;VALUE=DATE:20260317
SUMMARY:2025 Solo 401(k) / SEP IRA employer contribution due (S Corp)
DESCRIPTION:Employer profit-sharing contribution for the 2025 tax year\, ti
 ed to the S Corp filing deadline.\n\nMar 15\, 2026 falls on a Sunday\, so 
 this shifts to the next business day.\n\nApplies to: S CORP\, RETIREMENT.\
 n\nInformational only\, not tax\, legal\, or accounting advice. Deadlines 
 are set by the IRS and adjusted here for weekends and federal holidays\; a
 lways confirm specifics with a tax professional. State deadlines vary and 
 may apply separately.
CATEGORIES:S CORP,RETIREMENT
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 Solo 401(k) / SEP IRA employer contribution due (S Corp) i
 s in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-individual-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260415
DTEND;VALUE=DATE:20260416
SUMMARY:2025 individual return due or extend
DESCRIPTION:Extending moves the filing deadline to Oct 15\, 2026. An extens
 ion payment is still due if tax is owed.\n\nApplies to: ALL.\n\nInformatio
 nal only\, not tax\, legal\, or accounting advice. Deadlines are set by th
 e IRS and adjusted here for weekends and federal holidays\; always confirm
  specifics with a tax professional. State deadlines vary and may apply sep
 arately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 individual return due or extend is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-prior-year-retirement-employer-llc@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260415
DTEND;VALUE=DATE:20260416
SUMMARY:2025 Solo 401(k) / SEP IRA employer contribution due (LLC)
DESCRIPTION:Employer profit-sharing contribution for the 2025 tax year\, ti
 ed to the individual filing deadline.\n\nApplies to: LLC\, RETIREMENT.\n\n
 Informational only\, not tax\, legal\, or accounting advice. Deadlines are
  set by the IRS and adjusted here for weekends and federal holidays\; alwa
 ys confirm specifics with a tax professional. State deadlines vary and may
  apply separately.
CATEGORIES:LLC,RETIREMENT
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2025 Solo 401(k) / SEP IRA employer contribution due (LLC) is i
 n 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q1-estimated@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260415
DTEND;VALUE=DATE:20260416
SUMMARY:2026 Q1 estimated tax payment due
DESCRIPTION:First-quarter estimated payment for the 2026 tax year.\n\nAppli
 es to: ALL.\n\nInformational only\, not tax\, legal\, or accounting advice
 . Deadlines are set by the IRS and adjusted here for weekends and federal 
 holidays\; always confirm specifics with a tax professional. State deadlin
 es vary and may apply separately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q1 estimated tax payment due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q1-payroll-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260430
DTEND;VALUE=DATE:20260501
SUMMARY:2026 Q1 payroll tax return due
DESCRIPTION:Federal and state quarterly payroll return\, for entities runni
 ng payroll.\n\nApplies to: ALL\, PAYROLL.\n\nInformational only\, not tax\
 , legal\, or accounting advice. Deadlines are set by the IRS and adjusted 
 here for weekends and federal holidays\; always confirm specifics with a t
 ax professional. State deadlines vary and may apply separately.
CATEGORIES:ALL,PAYROLL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q1 payroll tax return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q2-estimated@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260615
DTEND;VALUE=DATE:20260616
SUMMARY:2026 Q2 estimated tax payment due
DESCRIPTION:Second-quarter estimated payment for the 2026 tax year.\n\nAppl
 ies to: ALL.\n\nInformational only\, not tax\, legal\, or accounting advic
 e. Deadlines are set by the IRS and adjusted here for weekends and federal
  holidays\; always confirm specifics with a tax professional. State deadli
 nes vary and may apply separately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q2 estimated tax payment due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q2-payroll-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260731
DTEND;VALUE=DATE:20260801
SUMMARY:2026 Q2 payroll tax return due
DESCRIPTION:Federal and state quarterly payroll return\, for entities runni
 ng payroll.\n\nApplies to: ALL\, PAYROLL.\n\nInformational only\, not tax\
 , legal\, or accounting advice. Deadlines are set by the IRS and adjusted 
 here for weekends and federal holidays\; always confirm specifics with a t
 ax professional. State deadlines vary and may apply separately.
CATEGORIES:ALL,PAYROLL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q2 payroll tax return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q3-estimated@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260915
DTEND;VALUE=DATE:20260916
SUMMARY:2026 Q3 estimated tax payment due
DESCRIPTION:Third-quarter estimated payment for the 2026 tax year.\n\nAppli
 es to: ALL.\n\nInformational only\, not tax\, legal\, or accounting advice
 . Deadlines are set by the IRS and adjusted here for weekends and federal 
 holidays\; always confirm specifics with a tax professional. State deadlin
 es vary and may apply separately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q3 estimated tax payment due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-extended-prior-year-scorp-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260915
DTEND;VALUE=DATE:20260916
SUMMARY:Extended 2025 S Corp return due
DESCRIPTION:No further extension is available. Late filing penalties may ap
 ply.\n\nApplies to: S CORP.\n\nInformational only\, not tax\, legal\, or a
 ccounting advice. Deadlines are set by the IRS and adjusted here for weeke
 nds and federal holidays\; always confirm specifics with a tax professiona
 l. State deadlines vary and may apply separately.
CATEGORIES:S CORP
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Extended 2025 S Corp return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-extended-prior-year-retirement-employer-scorp@tax-calendar.collect
 ive.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20260915
DTEND;VALUE=DATE:20260916
SUMMARY:Extended 2025 Solo 401(k) / SEP IRA employer contribution due (S Co
 rp)
DESCRIPTION:Final deadline for S Corps that filed an extension.\n\nApplies 
 to: S CORP\, RETIREMENT.\n\nInformational only\, not tax\, legal\, or acco
 unting advice. Deadlines are set by the IRS and adjusted here for weekends
  and federal holidays\; always confirm specifics with a tax professional. 
 State deadlines vary and may apply separately.
CATEGORIES:S CORP,RETIREMENT
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Extended 2025 Solo 401(k) / SEP IRA employer contribution due (
 S Corp) is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-extended-prior-year-individual-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20261015
DTEND;VALUE=DATE:20261016
SUMMARY:Extended 2025 individual return due
DESCRIPTION:No further extension is available. Late filing penalties may ap
 ply.\n\nApplies to: ALL.\n\nInformational only\, not tax\, legal\, or acco
 unting advice. Deadlines are set by the IRS and adjusted here for weekends
  and federal holidays\; always confirm specifics with a tax professional. 
 State deadlines vary and may apply separately.
CATEGORIES:ALL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Extended 2025 individual return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-extended-prior-year-retirement-employer-llc@tax-calendar.collectiv
 e.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20261015
DTEND;VALUE=DATE:20261016
SUMMARY:Extended 2025 Solo 401(k) / SEP IRA employer contribution due (LLC)
DESCRIPTION:Final deadline for LLCs that filed an extension.\n\nApplies to:
  LLC\, RETIREMENT.\n\nInformational only\, not tax\, legal\, or accounting
  advice. Deadlines are set by the IRS and adjusted here for weekends and f
 ederal holidays\; always confirm specifics with a tax professional. State 
 deadlines vary and may apply separately.
CATEGORIES:LLC,RETIREMENT
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:Extended 2025 Solo 401(k) / SEP IRA employer contribution due (
 LLC) is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-q3-payroll-return@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20261102
DTEND;VALUE=DATE:20261103
SUMMARY:2026 Q3 payroll tax return due
DESCRIPTION:Federal and state quarterly payroll return\, for entities runni
 ng payroll.\n\nOct 31\, 2026 falls on a Saturday\, so this shifts to the n
 ext business day.\n\nApplies to: ALL\, PAYROLL.\n\nInformational only\, no
 t tax\, legal\, or accounting advice. Deadlines are set by the IRS and adj
 usted here for weekends and federal holidays\; always confirm specifics wi
 th a tax professional. State deadlines vary and may apply separately.
CATEGORIES:ALL,PAYROLL
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Q3 payroll tax return due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:2026-retirement-employee-deferral@tax-calendar.collective.com
DTSTAMP:20260918T000000Z
SEQUENCE:1
DTSTART;VALUE=DATE:20261231
DTEND;VALUE=DATE:20270101
SUMMARY:2026 Solo 401(k) employee contribution due
DESCRIPTION:Employee elective-deferral deadline. S Corp owner-employees mus
 t have it withheld from payroll by Dec 31\; sole proprietors and single-me
 mber LLCs should lock in the election by Dec 31\, with funding allowed up 
 to the filing deadline.\n\nApplies to: ALL\, RETIREMENT.\n\nInformational 
 only\, not tax\, legal\, or accounting advice. Deadlines are set by the IR
 S and adjusted here for weekends and federal holidays\; always confirm spe
 cifics with a tax professional. State deadlines vary and may apply separat
 ely.
CATEGORIES:ALL,RETIREMENT
TRANSP:TRANSPARENT
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:2026 Solo 401(k) employee contribution due is in 14 days
TRIGGER:-P14D
END:VALARM
END:VEVENT
END:VCALENDAR