How will I know if I can take mortgage insurance premiums off my taxes that have already been filed for 2018

[rjs · Accepted solution]

In the unlikely event that Congress extends the deduction for mortgage insurance premiums retroactively for 2018, there will certainly be news reports about it. You can also come back here and ask about it again around mid-April. You will have until April 15, 2022 to amend your 2018 tax return to claim the deduction.