I am a student and just married my wife, who is from the UK. We have a co-sponsor willing to help us, as my income alone doesn't meet the requirement.
I know that I need to write a letter explaining my reasons for not filing taxes, but I'm unsure of what is needed exactly. Also, our co-sponsor has only filed taxes for two years, would he also need to write an explanation letter for not filing three years ago? I'd appreciate any help with this, thank you!