Annuitants who have health insurance coverage from another source between January 1- December 31, 2021, received a mailing detailing the process for applying for a premium subsidy. Applicants must complete and return the application (Form 355). The deadline to submit applications is August 31, 2022, with a grace period to September 16, 2022. Applications postmarked after September 16 will not qualify for a 2021 rebate.