Which is the best practice for documenting a cancellation or changes to a sale in Wisconsin?

• A. Document the changes in writing, with new signatures and dates, and provide updated disclosures if required.
• B. Note changes on a phone call log only.
• C. Allow changes without written documentation.
• D. Update the title but not the sale documents.

Answer: (A)

The important idea is that any cancellation or change to a vehicle sale must be captured in a written document that is signed and dated by all parties, with any required disclosures updated. Verbal changes or notes in a phone log don’t provide a reliable, enforceable record and can lead to disputes about what was actually agreed. A written amendment or cancellation agreement clearly states the new terms, the effective date, and who is responsible for any new obligations, making the contract change enforceable and easy to reference later.

Relying on the title update alone doesn’t prove that the sale terms were altered, and changing the sale terms without a proper written document leaves a gap in the record. If the change triggers disclosures required by law, those must be included with the written document to meet regulatory requirements. So the best practice is to prepare a written modification or cancellation, have both parties sign and date it, include any updated disclosures, and then reflect the changes in the sale documents (and, if applicable, in the title).