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Allen ISD Calendar 2026-2027

Collin County · Richardson area (Region 10)

First day of school: Thursday, August 13, 2026

The Allen ISD academic calendar for the 2026-2027 school year starts on Thursday, August 13, 2026 and ends on Thursday, May 27, 2027. Through the fall, families can plan around Labor Day on September 7, a fall break from October 12 through 14, and the Thanksgiving break from November 23 through 27. The winter break runs from December 21 through 31. In the second semester, the calendar includes the Martin Luther King Jr. holiday on January 18 and a spring break from March 15 through 19.

Last updated August 4, 2026

Official Calendar

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Official Allen ISD 2026–2027 calendar

Printable calendar (PDF)

Allen ISD printable 2026–2027 calendar PDF

Full-year Allen ISD calendar with every key date — district logo, color legend and a QR code to this page.

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Interactive calendar

Browse the key dates month by month — colored markers show each event.

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    Calendar Dates

    • Professional DevelopmentAug 4 — Aug 7Teacher Day
    • Professional DevelopmentAug 10 — Aug 12Teacher Day
    • First Day of SchoolAug 13, 2026School Opens
    • Start of Grading PeriodAug 13, 2026Grading
    • Labor DaySep 7, 2026No School
    • Professional DevelopmentSep 21, 2026Teacher Day
    • End of Grading PeriodOct 9, 2026Grading
    • Fall BreakOct 12 — Oct 14No School
    • Professional DevelopmentOct 15, 2026Teacher Day
    • Parent/Teacher ConferencesOct 16, 2026Teacher Day
    • Start of Grading PeriodOct 19, 2026Grading
    • Early ReleaseNov 20, 2026Early Release
    • Thanksgiving BreakNov 23 — Nov 27No School
    • Early ReleaseDec 18, 2026Early Release
    • End of Grading PeriodDec 18, 2026Grading
    • Winter BreakDec 21 — Dec 31No School
    • Winter BreakJan 1, 2027No School
    • Professional DevelopmentJan 4, 2027Teacher Day
    • Bad Weather Make-Up DayJan 4, 2027Event
    • Start of Grading PeriodJan 5, 2027Grading
    • Martin Luther King Jr. DayJan 18, 2027No School
    • Presidents’ DayFeb 15, 2027No School
    • Professional DevelopmentFeb 16, 2027Teacher Day
    • End of Grading PeriodMar 12, 2027Grading
    • Early ReleaseMar 12, 2027Early Release
    • Trade DayMar 15, 2027Event
    • Spring BreakMar 15 — Mar 19No School
    • Start of Grading PeriodMar 22, 2027Grading
    • Good FridayMar 26, 2027No School
    • HolidayApr 19, 2027No School
    • Bad Weather Make-Up DayApr 19, 2027Event
    • Last Day of SchoolMay 27, 2027School Closes
    • End of Grading PeriodMay 27, 2027Grading
    • Student Early ReleaseMay 27, 2027Early Release
    • Professional DevelopmentMay 28, 2027Teacher Day
    • Allen High School GraduationMay 28, 2027Event

    Frequently asked questions

    When is the first day of school for Allen ISD in 2026-2027?

    The first day of school for Allen ISD is Thursday, August 13, 2026.

    When is the last day of school for Allen ISD in 2026-2027?

    The last day of school for Allen ISD is Thursday, May 27, 2027.

    When is Thanksgiving break for Allen ISD?

    Allen ISD has Thanksgiving break from November 23 through 27, 2026.

    When is winter break for Allen ISD?

    Allen ISD's winter break runs from December 21 through 31.

    When is spring break for Allen ISD in 2026-2027?

    Allen ISD's spring break is March 15 through 19, 2027.

    When is fall break for Allen ISD?

    Allen ISD has a fall break from October 12 through 14, 2026.

    Does Allen ISD have school on Martin Luther King Jr. Day?

    No. Allen ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.

    Does Allen ISD have school on Labor Day?

    No. Allen ISD is closed for Labor Day on Monday, September 7, 2026.

    When is the first day of school in Allen ISD 2026-2027?

    The first day of school for Allen ISD for the 2026-2027 academic year is August 13, 2026.

    When is Spring Break in Allen ISD 2026-2027?

    Spring Break in Allen ISD for the 2026-2027 school year is scheduled from March 15-19, 2027.

    When is Christmas Break in Allen ISD 2026-2027?

    Christmas Break in Allen ISD for the 2026-2027 school year begins on December 21, 2026 and continues through January 1, 2027.

    When is Winter Break in Allen ISD 2026-2027?

    Winter Break for Allen ISD during the 2026-2027 academic year runs from December 21, 2026 through January 1, 2027.

    When is Thanksgiving Break in Allen ISD 2026-2027?

    Thanksgiving Break in Allen ISD for the 2026-2027 school year is from November 23-27, 2026.

    When is the last day of school in Allen ISD 2026-2027?

    The last day of school for Allen ISD in the 2026-2027 academic year is May 27, 2027. This day is also an early release day.

    When is Fall Break in Allen ISD 2026-2027?

    Fall Break for Allen ISD during the 2026-2027 school year is scheduled for October 12-14, 2026.

    When is Labor Day in Allen ISD 2026-2027?

    Labor Day will be observed on September 7, 2026 in Allen ISD, and students will not have school on this day.

    When is Martin Luther King Jr. Day in Allen ISD 2026-2027?

    Martin Luther King Jr. Day will be observed on January 18, 2027 in Allen ISD.

    When is Allen High School Graduation in Allen ISD 2026-2027?

    Allen High School Graduation for the 2026-2027 school year is scheduled for May 28, 2027.

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