Non resident spouse e file

[method1491]

Can I efile for joint married tax return for non resident alien with ss number if they already have been paying taxes?

[Critter-3]

Yes

[Opus 17]

To e-file, you just need an SSN or ITIN.

However, by filing jointly, you are required to report all your spouse's worldwide income and pay US tax on it.  You can claim a credit or deduction for foreign taxes paid.  If you file separately (MFS), you may pay higher US tax, but your spouse would not have to file a US tax return unless they had US-source income.  

Filing MFS is often worse financially than filing MFJ, but you may need to test your specific circumstances.