If you’re selling or servicing loans to Freddie Mac and artificial intelligence (AI) or machine learning (ML) shows up anywhere in your process — underwriting automation, document intelligence, chatbots, fraud detection, income calculation, payment processing, borrower outreach — you have a deadline: March 3, 2026.
Freddie Mac updated its Seller/Servicer Guide in March 2025, adding a new section addressing the governance of AI and machine learning. That change was formally announced later in Bulletins 2025-16 and 2025-17 , issued in December 2025, which established March 3, 2026 as the effective date for compliance. This isn’t guidance, and it isn’t optional. It’s a requirement — and it changes how mortgage sellers and servicers are expected to oversee AI-enabled vendors and tools across the entire loan lifecycle, from origination to servicing.