How do I know if I owe any back taxes?

[naudiajans]

I had problems completing one year, and im sure how it concluded

[Mike9241]

for the IRS you can log in or register to review your transcripts 

account transcripts go back to 2017

return transcripts go back to 2020

https://www.irs.gov/individuals/get-transcript 

you could also call

Call 800-829-1040
1) Choose your language,
2) Then choose option 2
3) Then 1
4) Then 3
5) Then 2
6) When it asks you to enter your SSN or EIN do nothing – wait - - After it asks twice, you will get another menu
7) Then 2
😎 Then 3

It should then transfer you to an agent. Note when its phone line are busy you may be on hold for a long while or disconnected

[xmasbaby0]

You have not mentioned which year you had trouble with---it is important to tell us.   You can still use TurboTax software for tax years as far back as 2021.   Online is only for 2024, but you can still use the desktop software on a full PC or Mac for 2021, 2022 or 2023.   If you owe tax due--you are late and will also owe late filing penalties and interest, which are continuing to increase.    If you are getting a refund for any of those years, you can still receive the refund, and there is no penalty for filing late.