For Married Filing Jointly you must file a Federal Tax Return if you had income of:
- Both spouses under 65, at least $20,600
- Both spouses 65 or over, at least $23,000
- One spouse under 65, at least $21,800
If you are Married Filing Separately, you must file a Federal Tax Return if you had $3,950 or more in income.
Please note: Generally, the advantages of filing Jointly far outweigh what you will receive if you file Separately. This is true even if one spouse made very little.
For more information on filing requirements:
https://ttlc.intuit.com/replies/3302274
For more information on filing Joint vs. Separate:
https://ttlc.intuit.com/replies/3288477
