Changes are not needed for this.
Payment profiles can already be set up for benefits in kind using the Payroll - Maintenance - Payment Profile form. Payrolling of these new allowable benefits should be dealt with using that feature.
If you prefer you can still continue to report BiKs on the P11D after the end of the tax year as normal.
There is no change to the process for reporting and collecting Class 1A NICs. You will still need to complete a P11D(b) after the end of the tax year, but you will need to ensure that you include the values for both payrolled and non-payrolled BiKs.
Tip: For full details of payrolling of benefits, visit www.gov.uk/guidance/paying-your-employees-expenses-and-benefits-through-your-payroll.