Year-end contribution deadlines

To qualify for state tax benefits for tax year 2026, account contributions must meet the following deadlines:

Online Process Deadline

Thursday, December 31, 2026

Must be received by my529 before 11:59 p.m. MT.

Manual Process Deadline

Thursday, December 31, 2026

Must be received by my529 before 5:00 p.m. MT.