Tax credits annual declaration

My UK husband has to send in his "Tax Credits Annual Declaration" for year ending 5 April, 2017. He is self employed. Last year we had to put me on this form because we were now married, (I am here on FLR(M) ) but we put 'zero' income claim for me because I had not started with my small business yet.

Since then I have begun business and submitted taxes in the US and UK, I only had to pay tax in the UK not on my profits (it was a loss) but on my other income...bank account interest etc. It was around 100.

Now he's freaking out because this form part 1 + 2 is us separate and none of it applied to me but the last "income from self-employment", I put "zero". BUT the next page Part 2 INCOME DETAILS continued has Joint Other Income and that's where we're stumped. If I put some income there won't it affect his tax credits? What do we put there?
Any help would be appreciated!
Mary

Hey Mary! Can't help with your question, sorry but I just wanted to say hi! 

Hi Larrabee! Nice to hear from you! I just want to bury my head sometimes when it comes to tax and money stuff, my eyes get glazed over when my husband or the accountant start to whiz through dates and numbers! I'm very organized and keep records of everything and need the accountant here in the UK and back in the US to translate and submit. It's hard with our tax years not lining up the same!

My accountant here has given me some input but said to go by what's on my 2016 US tax form but convert US to Sterling, but that has changed a lot since December! Does anyone know what "Ordinary Dividends" and "Qualified Dividends" are?