Last day of the NBA regular season
Also: Last day players can sign contracts for 2024-25. Last day two-way contracts can be converted to standard NBA contracts. Luxury tax penalties are calculated based on payroll as of this day.
The value of teams’ unused mid-level exceptions and bi-annual exceptions begins to prorate downward
Exceptions prorate down by 1/174th per day.
Most offseason signees become eligible for inclusion in trades
Also the last day to apply for a disabled player exception.
Last day to waive non-guaranteed NBA contracts (including two-way contracts) before guaranteed for rest of the season
Salaries officially guarantee on January 10 if players haven’t cleared waivers before this date.