Follow the steps to efficiently fill out the Beih3 form online.

1. Press the ‘Get Form’ button to retrieve the Beih3 form and open it in the online editor.
2. Start by marking the relevant checkbox indicating your request for the increased family allowance due to significant disability.
3. Provide the family or last name and first name of the child in block letters as requested.
4. Enter the insurance number and date of birth for both the child and the applicant.
5. Fill in the postal code, place of residence, street, house number, and door number for both the child and the applicant.
6. Include the telephone number of the applicant to enable communication.
7. Describe the child’s significant disability or illness in block letters.
8. Indicate the start month and year for the increased family allowance based on the medical expert's assessment.
9. If applicable, state the details about any care allowance being received for the child.
10. Finally, enter the place and date, and ensure to sign the form to confirm your application.
11. After completing all fields, you can save your changes, download the document, print it, or share it as needed.

Start completing your Beih3 form online now to ensure you receive the financial support you need.