Follow the steps to complete the A3490 SB form online.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Begin by entering your surname, forename, maiden name, place of birth, and date of birth in the designated fields. This information is essential for identification purposes.
3. Next, fill in your current address. Ensure that this is completed accurately to avoid any issues with processing.
4. Indicate your nationality or nationalities. This helps to establish your eligibility and the necessary documentation.
5. If you have changed your nationality, complete the section regarding your previous nationality, including the date of acquisition.
6. If you are applying for survivors' benefits, provide the necessary information regarding the deceased, including their surname, forename, place of birth, date of birth, and date of death.
7. Complete the official confirmation section. Confirm that all details you have provided are correct and list the documentary evidence you have submitted, including type and date of issuance.
8. Sign and date the form to confirm your application. This step is crucial; ensure your signature matches any identification provided.
9. Once all fields are completed, review the form for accuracy. You may then save changes, download, print, or share the completed form as required.

Ensure your applications are submitted promptly by completing all documents online.