Though you can still file your 2019 return, you shouldn’t expect to get your refund swiftly. That’s because 2019 returns must be filed on paper, which take longer for the I.R.S. to process.

How to file your 2019 tax return The IRS offers three ways people can file their returns from tax year 2019: Taxpayers can request Forms W-2, 1098, 1099 or 5489 for years 2019, 2020 and 2021 from ...