Can me and my girlfriend file together jointly

[AliS]

No, unmarried couples are not able to file a joint tax return.  If you were married as of 12/31/15, you can file jointly, otherwise you can’t.

Note:  More information on this topic is provided below.

• https://www.irs.gov/uac/What-Is-My-Filing-Status%3F

• Can-an-Unmarried-Couple-File-Jointly

https://ttlc.intuit.com/replies/3302320

[jerry2000]

You can not file jointly unless you are legally married.