To revoke or close a revocable trust, you first need to remove all assets from the trust. Then, you need to draft a formal declaration of your wish to dissolve the trust. These can often be downloaded online or acquired through a probate court, but make sure to consult a lawyer to ensure your form complies with local laws. Then, the grantor must sign with form with a notary acting as witness, and either file the form with the court where the trust was registered or append the form to existing trust documents.