- January 13, 2024: Salary Arbitration Exchange Date
- January 15, 2024, 9:00 a.m. ET: Opening of the 2024 International Signing Period
- February 14, 2024: Voluntary Report Date for Pitchers and Catchers
- February 19, 2024: Voluntary Report Date for Position Players
- March 2, 2024: First date to renew Major League contracts
- March 3, 2024: First date clubs may ask waivers on selected Rule 5 or draft-excluded players
- March 8, 2024: First date clubs may assign draft-excluded players
- March 11, 2024: Last date to renew Major League contracts
- March 11, 2024, 2:00 p.m. ET: Last date to request UR waivers to owe 30 days’ termination pay
- March 12, 2024: UR waivers requested 3/12 through 3/26, Club will owe player 45 days’ termination pay
- March 12, 2024: Last date to assign injured player to a Minor League club, if applicable
- March 18, 2024: Last date XX(B) players signed to a Minor League UPC qualifies for opt-outs
- March 19, 2024: Earliest date a player may be placed on the 60-day Injured or the Minor League Full Season List
- March 23, 2024: XX(B) Minor League player may require release if not added to the 26-man roster
- March 24, 2024: The earliest date that a Club may backdate a placement on the 7-day Concussion Injured List
- March 24, 2024: Last date to request UR Waivers to owe 45 days’ termination pay (before 2 pm ET).
- March 25, 2024: The earliest date that a Club may backdate a placement on the 10 or 15-day Injured List
- March 25, 2024: Last day to request OR waivers prior to Opening Day
- March 26, 2024: Last day to request UR waivers prior to Opening Day
- March 28, 2024: Official opening of 2024 season; rosters reduced to 26 (13 pitchers) by Noon ET
- March 28, 2024: After noon, optional assignments begin to count towards the annual option limit of 5
- March 29, 2024: Triple-A Opening Day; Domestic Reserve List limit reduced to 165
- March 31, 2024: First date 7-day Injured List players may be reinstated, if applicable
- April 4, 2024: First date 10-day Injured List players may be reinstated, if applicable
- April 7, 2024: First date optioned players may be recalled, if applicable
- April 9, 2024: First date 15-day Injured List players may be reinstated, if applicable
- April 11, 2024: First date optioned pitchers may be recalled, if applicable
- May 1, 2024: XX(B) Minor League player may require his release if he is not added to the Active Roster
- May 4, 2024: Start of the Florida Complex League
- May 15, 2024: Earliest date Clubs may re-sign Major League players they released after August 31, 2023
- May 27, 2024: First date that players on the 60-day Injured List may be reinstated
- June 1, 2024: XX(B) Minor League player may require release if not added to Active Roster
- June 3, 2024: Start of the Dominican Summer League
- June 8-9, 2024: MLB London Series (Mets vs. Phillies)
- June 15, 2024: First date Clubs may trade a XX(B) player without his consent
- June 17-22, 2024: MLB Draft Combine, Phoenix, AZ
- July 7, 2024: Start of the Closed Period for the 2024 MLB First-Year Player Draft
- July 13, 2024: 2024 MLB All-Star Futures Game, Arlington, TX
- July 14-16, 2024: 2024 MLB First-Year Player Draft, Arlington, TX
- July 15, 2024: 2024 T-Mobile Home Run Derby, Globe Life Field, Arlington, TX
- July 16, 2024: 2024 MLB All-Star Game, Arlington, TX
- July 19-22, 2024: Hall of Fame Induction Weekend
- July 25, 2024: End of the Florida Complex League regular season
- July 29, 2024: Start of the Florida Bridge League (16-game schedule among Phillies, Pirates, Blue Jays, Yankees, Tigers)
- July 30, 2024, 6:00 p.m. ET: Trade deadline
- August 1, 2024, 5:00 p.m. ET: Signing deadline for drafted players – (First -Year Player Draft)
- August 15, 2024: Last date to select a player to avoid draft-excluded status
- August 30, 2024: Unconditional release waivers must be requested by 2 p.m. ET to avoid May 15, 2025, signing restriction
- August 31, 2024: Post-season eligibility lists are established at 11:59 p.m. ET
- September 1, 2024: Active Major League player limit increased to 28 and 14 pitchers
- September 6, 2024: Players optioned today through the end of the season accrue MLS while optioned
- September 6, 2024: End of the Florida Bridge League season
- September 8, 2024: End of Jersey Shore’s regular season
- September 8, 2024: End of Clearwater’s regular season
- September 15, 2024: End of Reading’s regular season
- September 22, 2024: End of Lehigh Valley’s regular season
- September 29, 2024: End of the Phillies’ regular season
- September 29, 2024: Last weekend date waivers will be processed until next Spring Training
- September 29, 2024: Last day of the 2024 championship season
- September 30, 2024: All players on optional assignment must be recalled
- September 30, 2024: All players on the 7-day, 10-day and 15-day Injured Lists must be reinstated
- September 30, 2024: Minor League UPCs may now be traded between Major League Clubs
- September 30, 2024: Injured players may now be assigned to the Minor Leagues until Nov. 19, if permissible
- October 30, 2024: Article XX(D) Free Agency period. 48 hours following the last game for Postseason teams
- AFTER the WORLD SERIES
- 1st Day After: Eligible XX(B) players become free agents (start of the quiet period)
- First date players may be traded between Major League Clubs
- 4th Day After: Last date to request waivers on draft-excluded players until next spring
- 5th Day After: Last date to outright potential Minor League free agent without Major League contract, if applicable
- Last date for former Club to tender qualifying offer to XX(B) players, if applicable
- Domestic Minor League Player Limit increases to 175 players
- Minor League players become free agents at 5:00 p.m. ET, if applicable
- End of Quiet period, XX(B) free agents may sign with any Club
- All players on the 60-day Injured List (Major and Minor) and Full-Season Injured Lists must be reinstated
- 1st Day After: Eligible XX(B) players become free agents (start of the quiet period)
- November 1, 2024: Deadline for the 2025 International Player Registration Period
- November 15, 2024: Last date to ask Outright Waivers on an injured player, if applicable
- November 19, 2024: Last date to outright an injured player to the Minor Leagues, if applicable
- November 19, 2024: XX(B) players decide to accept qualifying offer from former Club by 4:00 p.m. ET. if applicable
- November 19, 2024: Reserve lists for all Major and Minor League levels filed by 6:00 p.m. ET (all Transactions MUST be entered by 5:30 p.m. ET)
- November 22, 2024: Tender Deadline
- December 1, 2024: Release of the 2025 International Registered Players List
- December 4, 2024: Last date to request Outright Waivers to assign player prior to Rule 5 Draft
- December 7-11, 2024: Baseball Winter Meetings, Dallas, TX
- December 8, 2024: Last date to outright a player prior to the Rule 5 Draft
- December 10, 2024: MLB Draft Lottery.
- December 11, 2024: Major League Rule 5 Draft – Winter Meetings, Dallas, TX
- December 15, 2024: End of 2024 International Signing Period
- Note: These dates will be used unless notified differently.