I'm married to a Canadian citizen, and I'm a US citizen. I live in the US, and they live in Canada, so I only earn US income, and they earn only Canadian income. We've elected to file jointly because I can't qualify for the healthcare credit anymore due to just my earnings being below the threshold required to get the credit for myself now due to marriage.
How would I file jointly with my spouse and add their income to my tax return?
They already have an ITIN number and already have a declaration written out, but I'm not sure how to add their income onto my return; since Canadians don't have W2s and have their equivalent which is a T4, would I convert their income and add it to mine, or does theirs need to go into the foreign income section somewhere?
And one other question, is it possible to amend my 2021 return and change the filing status from married filing single to filing jointly for last year?
Thanks for any advice and tips.
