I filed as head of household but still legally married but didn’t live in same house as Spouse for 6 months. When he files his taxes, will he need to file as single?

[carakirks]

I recently filed married, head of household. We are still legally married but didn’t live together the last 6 months of the tax year. I have qualifying dependents and maintained the bills in the household. When my spouse filed his return, will he need to file as single? 

[Opus 17 · Accepted solution]

Your spouse files as married filing separately (unless your spouse also qualifies as HOH because at least one of your children lived with him instead of you).