Nic threshold

Jade’s daughter, Emerald, has recently returned to the United Kingdom after travelling overseas. She currently has no income for the tax year 2024/25. For the three-month period ended 5 April 2025, Emerald will be employed by Jade’s business at a gross monthly salary of £2,000, payable on the 5th of the month. This salary is reasonable in relation to the duties that will be performed by Emerald. So over here employee and employer nic would be apportioned?

Q2) if employee worked only 3 months from the start of the fiscal yr and then left the employer and started self employment even then we will apportion nic threshold of class 1 emplyee nic and for his employer class 1 employer nic

Q3) and as class 1 a is 13.8% will we also apportion it according to the months?