我母親在美國一直都是零收入,在填寫I-864表格為我弟弟做申請的時候,有一項“I was not required to file a Federal income tax return as my income was below the IRS reuiqred level and I have attached evidence to support this", 我隻能在這一項打勾,可是需要遞交怎樣的材料去證明媽媽零收入, 還是不用遞交任何材料。另外補充一下,我是joint sponsor可以提供收入證明。 大家一般如何填寫呢?
謝謝啦!