Financial literacy is highly correlated to long‐term positive economic outcomes. Research into the financial literacy of autistic adults is virtually nonexistent which is concerning given the implications of financial decision making for quality of life. This study assessed conceptual understanding and financial behaviors of autistic adults compared to a matched group of non‐autistic adults. An online questionnaire assessed income, use of financial tools, feelings towards finances, use of financial literacy programs, financial knowledge, and preference for receiving financial education. The findings indicated autistic adults showed lower financial literacy and great uncertainty around many financial issues. They were less confident of their financial knowledge and ability to deal with daily financial matters. The autistic group showed less liking for some specific learning tools for receiving financial education. Our findings inform efforts to design specific curricula to improve the financial knowledge and understanding of autistic and other neurodiverse populations.This article is protected by copyright. All rights reserved.