BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//OntarioLLB//Compliance Calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Ontario business key dates — OntarioLLB
X-WR-TIMEZONE:America/Toronto
BEGIN:VEVENT
UID:t4-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260228
DTEND;VALUE=DATE:20260301
SUMMARY:T4 slips and summary due to CRA
DESCRIPTION:Employers file T4 slips and the T4 summary\, and give slips t
 o employees. Confirm the exact date with CRA.
URL:https://ontariollb.com/compliance
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:T4 slips and summary due to CRA is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:rrsp-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260301
DTEND;VALUE=DATE:20260302
SUMMARY:RRSP contribution deadline (prior tax year)
DESCRIPTION:Last day to contribute to an RRSP for the previous tax year. 
 Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:RRSP contribution deadline (prior tax year) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:eht-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260315
DTEND;VALUE=DATE:20260316
SUMMARY:Ontario employer health tax annual return
DESCRIPTION:Ontario employers over the EHT exemption file and pay. Check 
 the current exemption with the Ontario Ministry of Finance.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Ontario employer health tax annual return is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:t1-balance-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260430
DTEND;VALUE=DATE:20260501
SUMMARY:Personal income tax balance owing due
DESCRIPTION:Tax owing on self-employment income is due April 30 even thou
 gh the return can be filed to June 15.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Personal income tax balance owing due is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:t1-filing-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260615
DTEND;VALUE=DATE:20260616
SUMMARY:Self-employed T1 return (with T2125) due
DESCRIPTION:Self-employed filers and their spouses file the T1 return wit
 h form T2125.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Self-employed T1 return (with T2125) due is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q1-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260315
DTEND;VALUE=DATE:20260316
SUMMARY:Tax instalment payment (Q1)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q1) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q2-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260615
DTEND;VALUE=DATE:20260616
SUMMARY:Tax instalment payment (Q2)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q2) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q3-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20260915
DTEND;VALUE=DATE:20260916
SUMMARY:Tax instalment payment (Q3)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q3) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q4-2026@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20261215
DTEND;VALUE=DATE:20261216
SUMMARY:Tax instalment payment (Q4)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q4) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:t4-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270228
DTEND;VALUE=DATE:20270301
SUMMARY:T4 slips and summary due to CRA
DESCRIPTION:Employers file T4 slips and the T4 summary\, and give slips t
 o employees. Confirm the exact date with CRA.
URL:https://ontariollb.com/compliance
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:T4 slips and summary due to CRA is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:rrsp-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270301
DTEND;VALUE=DATE:20270302
SUMMARY:RRSP contribution deadline (prior tax year)
DESCRIPTION:Last day to contribute to an RRSP for the previous tax year. 
 Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:RRSP contribution deadline (prior tax year) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:eht-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270315
DTEND;VALUE=DATE:20270316
SUMMARY:Ontario employer health tax annual return
DESCRIPTION:Ontario employers over the EHT exemption file and pay. Check 
 the current exemption with the Ontario Ministry of Finance.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Ontario employer health tax annual return is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:t1-balance-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270430
DTEND;VALUE=DATE:20270501
SUMMARY:Personal income tax balance owing due
DESCRIPTION:Tax owing on self-employment income is due April 30 even thou
 gh the return can be filed to June 15.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Personal income tax balance owing due is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:t1-filing-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270615
DTEND;VALUE=DATE:20270616
SUMMARY:Self-employed T1 return (with T2125) due
DESCRIPTION:Self-employed filers and their spouses file the T1 return wit
 h form T2125.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Self-employed T1 return (with T2125) due is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q1-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270315
DTEND;VALUE=DATE:20270316
SUMMARY:Tax instalment payment (Q1)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q1) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q2-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270615
DTEND;VALUE=DATE:20270616
SUMMARY:Tax instalment payment (Q2)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q2) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q3-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20270915
DTEND;VALUE=DATE:20270916
SUMMARY:Tax instalment payment (Q3)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q3) is due in 7 days
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:instal-q4-2027@ontariollb.com
DTSTAMP:20260920T201010Z
DTSTART;VALUE=DATE:20271215
DTEND;VALUE=DATE:20271216
SUMMARY:Tax instalment payment (Q4)
DESCRIPTION:Quarterly instalment date for individuals who owe instalments
 . Confirm with CRA.
URL:https://ontariollb.com/taxes
TRANSP:TRANSPARENT
BEGIN:VALARM
TRIGGER:-P7D
ACTION:DISPLAY
DESCRIPTION:Tax instalment payment (Q4) is due in 7 days
END:VALARM
END:VEVENT
END:VCALENDAR