Late-filed taxes can trigger penalties and interest if you owe money, and your refund can be delayed if you’re due one. If you file more than 60 days late, there can also be a minimum failure-to-file penalty, so it’s usually worth filing as soon as possible even if you can’t pay right away.

What usually happens

  • If you owe taxes: the IRS can charge a failure-to-file penalty, usually 5% of the unpaid tax per month or part of a month , up to 25% , plus interest.
  • If you don’t pay on time: you may also get a failure-to-pay penalty, which adds more cost until the balance is paid.
  • If you’re getting a refund: you generally won’t owe a penalty just for filing late, but your refund may be delayed.
  • If you’re very late: there can be a minimum penalty when the return is more than 60 days late.

What to do next

  1. File your return as soon as you can.
  2. Pay as much as possible now to reduce penalties and interest.
  1. Check whether you can request an extension if the deadline hasn’t passed yet; an extension usually gives more time to file, not more time to pay.
  1. If you can’t pay in full, look into an IRS payment plan.

Simple rule of thumb

If you’re late and owe taxes , the bill can grow quickly; if you’re late and expect a refund , the main downside is usually a delayed refund.

If you want, I can also give you a state-by-state version or a very short plain-English explanation.