Montana Form AOS

A complete guide to completing Montana Form AOS, the Affidavit of One and The Same, used to legally verify identity discrepancies.

Montana Form AOS (Affidavit of One and The Same) is a legal document used to clarify and confirm that two different names appearing on legal documents refer to the same individual. This form is often required by the Montana Department of Revenue or other agencies when there is a discrepancy in an individual’s name across various records—such as a tax return, title, deed, or identification document. For example, if a person is listed as “John A. Smith” on a driver’s license but “John Smith” on a property title, this affidavit formally declares under oath that both names refer to one and the same person. Because this is a sworn statement, it must be signed in the presence of a Notary Public to be valid.

How To File Montana Form AOS

This form is typically submitted as a supporting document along with other filings, such as tax returns, vehicle titles, or property records, rather than being filed on its own. It should be submitted to the specific division or agency requesting the clarification of identity. If you are unsure where to send it, refer to the correspondence you received requesting the form or submit it with the application or return that caused the name discrepancy. For questions about where to send the form, you can contact the Montana Department of Revenue at (406) 444-6900.

How to Complete Montana Form AOS

How to Complete Montana Form AOS

Header Information

State of Montana
This section is pre-printed to indicate the jurisdiction.

County of
Enter the name of the county in Montana where this affidavit is being signed and notarized. This establishes the venue where the oath is taken.

Affiant Statement

I, [Name of Affiant]
On the first blank line following “I,”, print your full legal name as the person making the sworn statement (the affiant).

…being duly sworn under oath, state that [Name 1] and [Name 2] is one and the same person.
In the two blank lines following “state that,” enter the two different names that need to be linked.

  • On the first line, write one variation of the name (e.g., the name as it appears on a birth certificate or ID).
  • On the second line, write the other variation of the name (e.g., the name as it appears on the document in question).
  • The order does not strictly matter, but ensure both variations are spelled exactly as they appear on the documents you are trying to reconcile.

Date And Signature

Dated this [Day] day of [Month], 20[Year]
Enter the day, month, and year that you are signing the document. This date should match the date you appear before the notary.

Signature
Sign your name on the “Signature” line. Do not sign this until you are in the presence of the Notary Public. The notary must witness your signature for the document to be valid.

Printed Name
Print your full legal name clearly on the “Printed Name” line below your signature.

Notary Section

Subscribed and sworn to before me this [Day] day of [Month], 20[Year]
The Notary Public will complete this section, filling in the date they witnessed your oath and signature.

Notary Signature and Stamp
The Notary Public will sign their name and affix their official notary stamp in the designated area. Do not write in this space; it is reserved for the notary’s official use.

Assistance

If you have questions about the form or the process, the bottom of the form provides contact information: Call (406) 444-6900 or use Montana Relay at 711 for the hearing impaired.

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