The CPI-U for September 2023 was published with a value of 307.789. Based on Tom Poje's spreadsheet, the dollar limits for 2024 are projected to be:
Almost all increased (NOT Official yet, of course):
Deferral limit: $23,000 (up from $22,500)
Catchup: $7,500 (unchanged)
Compensation Limit: $345,000 (up from $330,000)
Annual Addition Limit: $69,000 (up from $66,000)
DB Limit: $275,000 (up from $265,000)
HCE: $155,000 (up from $150,000)
Key Employee: $220,000 (up from $215,000)
Just for reference, the unrounded figures are:
Catchup: $7,793.00
Deferral limit: $23,379
Compensation Limit: $345,220
Annual Addition Limit: $69,044
DB Limit: $276,176
HCE: $155,984
Key Employee: $224,393