This could be weekly or monthly by bank transfer. Do not pay in cash. Decide what is best for both of you. If your personal budget is monthly, it makes sense to pay monthly.
Register as an employer and take out liability insurance
You should register as an employer 4 weeks before your PA starts work.
It’s also important to take out employer’s liability insurance. This will cover you against your employee having accidents at work. If you and your PA will be leaving the house frequently, you may also need to take out public liability insurance.
You will need to deduct Income Tax and National Insurance from your employee’s wages and pay these to the HMRC (tax office). You must run a payroll (GOV.UK) to calculate the amount of pay and tax deductions. You can pay an accountant or a payroll service to do this.
You might want to use software to help you run your payroll and automatically calculate any salary deductions. Brightpay manages payroll for you. Your personal budget should cover the cost of using it.
You must submit your payroll and pay to the tax office every month by cheque or bank transfer. Give your personal assistant an electronic or paper payslip (GOV.UK) on or before payday. Payroll software can produce these for you or you can use an online template (redtapedoc.co.uk).
Provide holiday and sick pay
You must pay Statutory Sick Pay (SSP) if your PA is eligible. You can pay more if you wish.
Holiday pay must be at least 28 days (you do not have to give Bank Holidays as paid leave). Your employee’s contract can say they only get sick pay and holiday pay after the probationary period.