What Do I Need to Sign My Healthcare Proxy in Montana?

Notarization is not required for a healthcare proxy to be valid in Montana.Mont. Code Ann. § 50-9-103Verified Jul 15, 2026

Montana allows Remote Online Notarization (RON) for healthcare proxies.Mont. Code Ann. § 50-9-103Verified Jul 15, 2026 The notarization can be completed via secure video call with an approved RON provider. The state also accepts out-of-state RON.

To execute a healthcare proxy in Montana: Find 2 adults to serve as witnesses. Review witness restrictions to ensure eligibility. Give copies to your healthcare agent and doctors. Remote notarization is available; whether the document itself may be signed electronically is unresolved

Yes. Montana has an explicit reciprocity statuteMont. Code Ann. § 50-9-111Verified Jul 15, 2026: a healthcare directive executed in another state is honored in Montana if it was valid where signed. Montana still operates under the Rights of the Terminally Ill Act (Mont. Code Ann. Title 50, ch. 9); it has not adopted the UHCDA. Per Mont. Code Ann. § 50-9-111, an out-of-state directive is valid if executed in a manner "substantially similar" to § 50-9-103 and in compliance with that state's law (place-of-execution test; both conditions required). The document portability tool covers reciprocity rules in detail.