And--you mentioned getting "caught up"---it is too late to receive refunds for tax years 2019 or 2020. The deadline to file a 2020 return and receive a refund was May 17, 2024. It is not too late to receive a refund for 2021, 2022 or 2023. Each tax year has to be prepared separately using the forms and software for the specific tax years, and all except 2023 can only be filed by mail. Only a 2023 return can still be e-filed. If you owe tax due for any of those tax years, it is owed with late filing penalties and interest, for which the IRS will bill you after they have received your return and your payment for the amount of tax due as shown on the Form 1040.
It might be better for you to seek local paid tax help in a situation when you are several years behind in filing your tax returns. Do you even have all of the documents you will need to enter and show your income—like your W-2’s and any 1099’s?
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
