Why Changes to Postmarks Matter for Deadlines

Published: Feb. 17, 2026Updated: Feb. 23, 2026

Chris Arroyo, Deputy Director of Policy and Public Affairs at the State Council on Developmental Disabilities, explains upcoming changes to how postmarks work—and why they matter more than you might think. These changes could impact critical deadlines related to benefits, taxes, and even voting. Learn why mailing something “on time” may no longer be enough and what families should watch for as these changes roll out.

Want to know more about the California state budget? Check out our What to Know about California’s Budget Proposal for 2026-27.

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