In 2005, International Financial Reporting Standards (IFRS) have been legally adopted by listed firms to facilitate the harmonization of accounting practices. However, IFRS remain an option for non-listed firms in some countries. We investigate whether European privately held firms can raise more debt when they voluntarily report their consolidated financial information according to IFRS rather than local accounting rules. Using fixed effects regressions on 8391 firms in 22 European Union (EU) countries from 2005–2018, we document that IFRS adoption leads to more private debt issue for non-listed firms. This accounting option could be particularly useful for opaque firms or firms located in common law countries. Our results contribute to the debate on European accounting policy for non-listed firms.