Fl 420 2026

1. Click ‘Get Form’ to open FL 420 in the editor.
2. Begin by entering your contact information in the 'Attorney or Party Without Attorney' section, including your name, state bar number, and address. If applicable, include your telephone number and email address.
3. Fill in the details for the court, including the Superior Court of California's name, street address, mailing address, city, and zip code.
4. Identify the parties involved by entering the names of the petitioner/plaintiff, respondent/defendant, and other parent along with the case number.
5. In the 'Declaration of Payment History' section, declare your name and check all applicable obligations such as child support or spousal support. Attach any necessary pages detailing amounts ordered and paid.
6. Complete the 'Support Arrearage Summary' by specifying interest calculations and providing totals for each type of support. Ensure you sign and print your name at the end.

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