Millions of taxpayers may be owed an IRS refund for penalties or interest charged during COVID. You'll have to act quickly if you're one of them.

Can you still claim tax relief from previous years? Learn IRS deadlines, rules and when refunds, credits or penalty relief may still be available.

Korrena Bailie has over a decade of experience reporting and editing personal finance stories and reviews. Her work has been featured in Wirecutter, The New York Times, Bankrate and Credit Karma. Send ...