Independent Contractor and Vendor Agreements: When Notarization Comes Up

Most independent contractor and vendor agreements are simply signed, not notarized — a standard contract between two parties doesn’t typically carry a notarization requirement under Kansas or Missouri law. But there are specific situations where notarization enters the picture, and it’s worth knowing what triggers it.

When notarization actually applies

• The agreement includes a recorded lien or security interest — documents that will be filed with a county recorder’s office generally need notarized signatures as part of the recording requirements
• A party is signing under a power of attorney on behalf of the actual contracting entity, which brings in the same requirements covered in notarizing under an existing POA
• One party specifically requests it as a condition of the deal — often for higher-value or longer-term vendor relationships, where notarization adds a layer of assurance about who actually signed
• The agreement is going into a court filing or legal proceeding where a sworn, notarized affidavit version is required alongside or instead of the plain agreement

Mechanic’s liens are a common example

Contractors in the construction trades run into this often: a mechanic’s lien filed against a property for unpaid work generally needs to be notarized before it can be recorded with the county. If you’re a contractor who files liens as part of your collections process, this is one of the more predictable, recurring reasons you’ll need a notary.

If a contract doesn’t say “must be notarized” anywhere on it, it probably doesn’t need to be — but it’s always worth a quick check rather than an assumption, especially before something gets filed or recorded.

Fast turnaround for deal timelines

Business deals often move on tight timelines. If you need a notarized signature to close out an agreement quickly, same-day and next-day mobile appointments are usually possible — reach out and we’ll do our best to match your timeline.