My husband incurred startup expenses in December 2017 for a company he started in January 2018. He filed an 1040EZ in 2017. The startup costs exceeded $10,000. We are trying to figure out if we need to do an amendment for 2017 or can we claim all of those start up expenses on the 2018 return. Or If there is a different less stressful option please tell. Thank you.
