Please provide more details that way someone can help you.

I will have to use a joint sponsor but he has not file his tax return for this recent year

He still can file his taxes. He have up to three years to file. I Hope this helps.

ok. but how soon after filing will I get form 1040 to upload on nvc?

I assumed you need his tax transcripts. if thats the case, it won't be long. Once he filed his taxes, he can order it online and provide you with the information that way you can upload it to the NVC.

yes I need his transcipt. thanks you!