Follow the steps to effectively fill out the WA DoL TD-420-550 online.

1. Click ‘Get Form’ button to obtain the form and open it in the online editor.
2. Begin by filling out Section 1, which contains the registered tow truck operator (RTTO) information. Provide your name, phone number, address, city, date stored, date abandoned, report date, state, and RTTO number.
3. Next, move to Section 2 to input the vehicle information. Enter the Vehicle Identification Number (VIN), year, model, plate/tag/decal number, body style, fax number, ZIP code, police agency storing, make, state, and type of vehicle.
4. Complete Section 3, the affidavit of sale section. Here, you need to provide the purchaser's name, total lien (less sales tax), sale price, tax amount, amount collected, surplus amount, the date the surplus amount was sent to the Department of Licensing, and the purchaser's street address, city, state, and ZIP code.
5. In this section, include the date of sale and the driver license or UBI number. Additionally, answer whether the vehicle was purchased for resale.
6. Proceed to Section 4, the certification. Indicate whether the statement is true by answering 'yes' or 'no.' If there are surplus funds, mail them within 30 days to the Department of Licensing at the specified address.
7. Finish the form by certifying your information under penalty of perjury, documenting the date and place (city or county) signed.
8. Ensure that the completed form is printed and signed in front of a notary or vehicle licensing agent, as required. This step finalizes the document.
9. If applicable, provide the notary/certification section and ensure that it is filled out correctly.
10. Review the entire form for accuracy and completeness. Once satisfied, you can save changes, download, print, or share the completed document as needed.

Complete the WA DoL TD-420-550 online today to manage your abandoned vehicle affidavit efficiently.