P11D benefits and Class 1A

Adding a benefit

1. Open P11D

   On the Payroll tab press "P11D and Class 1A" and choose the tax year.

2. Add the benefit

   Choose the employee and kind of benefit, such as a car, van, loan or medical insurance, and enter the cost and anything made good.

3. Car and loan details

   For a car or van enter the list price, CO2 figure, fuel type and dates available. For a loan enter the balances and interest paid.

4. Add

   Press "Add". Tick "Taxed through the payroll" for payrolled benefits.

Filing

"P11D(b) and Class 1A" shows the number of P11Ds, the Class 1A due at 15%, and the dates to file and pay. Filing with HMRC switches on once HMRC has issued Accountin its own vendor ID. Until then the filing buttons are greyed out, and the return can still be prepared, printed and approved.

P11Ds for 2026-27 can be prepared now. They can be filed once HMRC publishes the 2026-27 expenses and benefits schema that Accountin checks them against.