2024 HR Calendar - Open Enrollment Reminders - Federal Holidays - HR Form Filing Dates

Sep 19, 2026

2024 HR Calendar consolidates key human resources reminders, federal holidays, seasonal start dates, and celebratory observances across the year. It highlights important workforce compliance timelines tied to benefits administration and federal filings, including open enrollment end timing and multiple IRS form due items. The calendar also flags common HR documentation and reporting moments such as W-2 and 1099-related schedules, privacy day, equity and non-discrimination events, and year-round employee support observances.

LanguageEnglish

CategoryGeneral

FormatPDF

Pages21

Reading Time7 min

AccessFree to download

Open Enrollment Reminders

Federal Holidays

HR Compliance and Form Filing Dates

Seasonal and Celebratory Days

2024 HR Calendar 8150 Beverly Blvd. | Los Angeles, [CA 90048 www.MMChr.com | 800.899.6624](CA 90048 www.MMChr.com | 800.899.6624) Open Enrollment Reminders Federal Holidays First Day of Season Celebratory Days/ Events SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY The first month of the year is when MMC Labor Law posters are generally sent to clients to ensure workplace compliance JANUARY 07 14 21 28 Data Privacy Day 01 New Year’s Day 08 15 Martin Luther King Day 22 29 02 09 16 Federal Open Enrollment Period Ends 23 30 03 10 17 24 W-2 Forms 31 Form 1099-MISC. & NEC Form 940 04 11 18 25 05 12 19 26 06 13 20 27 Disclaimer: Please note that unless marked with key dates provided in this calendar are mostly general in nature. Actual timeframes may vary depending on the complexities and characteristics of your plan/s as well as your residing state. FEBRUARY SUNDAY 04 11 18 25 MONDAY 05 12 19 President’s Day 26 TUESDAY 06 13 Mardi Gras 20 27 WEDNESDAY 07 14 Valentine’s Day 21 1094c & 1095c I RS filing (paper) 28 LA City Taxes THURSDAY 01 08 15 22 29 Leap Day FRIDAY 02 Groundhog Day 09 16 23 SATURDAY 03 10 Chinese New Year 17 Random Acts of Kindness Day 24 Black History Month MARCH SUNDAY 03 10 17 St. Patrick’s Day 24 MONDAY 04 11 18 25 TUESDAY 05 12 19 First Day of Spring 26 WEDNESDAY 06 13 20 Baha’i Holiday 27 THURSDAY 07 14 21 28 FRIDAY 01 Employee Appreciation Day Furnishing Form 1095c 08 International Women’s Day Non-discrimination 401 (k) testing 15 22 29 SATURDAY 02 09 16 23 30 Women’s History Month APRIL SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY April is the perfect month for your HR department to re- organize! Begin updating documentation for policy & procedures. Easter Day 31 International Transgender Visibility Day 07 14 21 28 Summary Plan Description Requirement 1094c & 1095c IRS & 1099-MISC filing (electronic) Cesar Chavez Day 01 08 02 09 03 10 Eid al Fitr National Tax Day 15 IRS Form 7004 Filing IRS Form 8928 Filing 22 16 23 17 24 04 11 18 25 05 12 19 26 06 National Employee Benefits Day 13 20 27 Earth Day Administrative Professionals Day 29 30 National Volunteer Month MAY |
SUNDAY |
MONDAY |
TUESDAY | WEDNESDAY
01 |
THURSDAY
02 | FRIDAY
03 |
SATURDAY
04 | | --- | --- | --- | --- | --- | --- | --- | | 05

Cinco de Mayo | 06 | 07 |
Baha’i Holiday
08 | 09 | 10 | 11 | |
12

Mother’s Day |
13 |
14 |

Non-Profit Tax Returns IRS Form 990
IRS Form 8868
15 |
16 |
17

National Bike to Work Day |
18

Armed Forces Day | | 19 | 20 | 21 | 22 | 23

Baha’i Holiday | 24 | 25 | |
26 |
27

Memorial Day |
28

Baha’i Holiday |
29 |
30 |
31 |
01 | Global Employee Health & Fitness Month-AAPI Heritage Month-Mental Health Month JUNE |
SUNDAY |
MONDAY | TUESDAY |
WEDNESDAY |
THURSDAY | FRIDAY | | SATURDAY | | --- | --- | --- | --- | --- | --- | --- | --- | |
02 |
03 |
04 |
05 |
06 | | 07 |
08 | | 09 | 10 | 11 | 12 | 13 |
Flag Day | 14 | 15 | | 16 | 17 | 18 | 19 | 20 | | 21 | 22 | |
Father’s Day | | |
Juneteenth National Independence Day |
First Day of Summer | | | | |
23 |
24 | 25 |
26 |
27 | | 28 | 29 | |
30 | | | | | | | | Pride Month JULY SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY End of July marks the time to review benefits notices, or issued as required 01 02 03 04 05 06 Independence Day 07 08 09 10 11 12 13 Baha’i Holiday 14 21 28 15 22 2

FAQs

What information does the 2024 HR Calendar include?

It includes open enrollment reminders, federal holidays, seasonal or “first day of season” items, and celebratory observances alongside HR compliance and form filing dates.

Which HR compliance themes are emphasized in the calendar?

The calendar emphasizes workplace compliance and employee benefits administration timelines, including open enrollment end timing and key IRS form-related schedule items.

How should the calendar be used regarding plan timing?

Use the listed dates as general guidance; actual timeframes may vary depending on plan complexity and the participant’s or resident state.

Sep 19, 2026

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