Based on what you state, there doesn't appear to be a requirement for the spouse with no income to file.
As a married dependent, you're required to file a return if any of the following apply. (WARNING: These are Tax Year 2017 amounts. For subsequent year amounts, please see Table 1-2 referenced in the link below.)
- Your unearned income was more than $1,050.
- Your earned income was more than $6,350.
- Your gross income was at least $5 and your spouse files a separate return and itemizes deductions.
- Your gross income was more than the larger of $1,050, or your earned income (up to $6,000) plus $350.
For more information, see Table 1-2, 20XX Filing Requirements for Dependents, in IRS Publication 17, Your Federal Income Tax for Individuals.
[Edited 3|16|2020 8:00 am]
