P11d car fuel custom form 2026

1. Click ‘Get Form’ to open the p11d car fuel custom form in the editor.
2. Begin by entering the employer details, including the employer name and PAYE reference. This information is crucial for identification.
3. Next, fill in the employee details such as their name, surname, and National Insurance number. Ensure accuracy to avoid processing issues.
4. In section 1, provide details about the car available to the employee, including its make, model, and registration date. Indicate if this was the only car made available.
5. Proceed to section 2 where you will enter the list price of the car and any accessories. Follow the guidelines provided for classic cars if applicable.
6. Calculate the appropriate percentage based on CO2 emissions in section 5. Use tables provided in the form to determine this accurately.
7. Finally, calculate any deductions for unavailability and private use payments before summarizing your entries in sections 8 and 9.

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