We're married filing jointly for federal and WI state taxes. We each earned $1,500 working in Idaho. Do we have to file in ID because together (gross) we earned $3,000?

According to https://tax.idaho.gov/i-1039.cfm : "Nonresidents must file an Idaho income tax return if their gross income from Idaho sources is more than $2,500."

posted

Yes, you are correct unless you are a "special case Idaho resident". I don't think this applies to you, but you can take a look at it.

Special-case Idaho residents don't have to file an Idaho income tax return if they're absent from the state for at least 445 days in a 15-month period. However, they must meet certain qualifications. Here are the guidelines:

https://tax.idaho.gov/i-2015.cfm?seg=specific