TLDW: IRS Circular 230 AI guidance creates new compliance requirements that make hourly billing risky for tax prep firms using AI, potentially pushing the industry toward alternative fee models. Key points: - IRS Office of Professional Responsibility issued first-ever AI guidance for tax practitioners on Circular 230 compliance - Hourly billing combined with AI use may inadvertently violate IRS regulations, creating regulatory headaches for firm owners - The guidance provides an industry-wide catalyst to abandon billable hour model in favor of value-based or fixed-fee structures - Content covers Episode 494 of The Accounting Podcast with co-host David Leary - Blake Oliver frames this as both a compliance risk and business opportunity to modernize billing practices