What is the difference between Salary Slips and Invoices?

The invoice is the claims that Manymore.com has sent to your clients on the basis of what you have reported. This may include taxes such as VAT and Employer's tax, as well as fees.

The salary slip is the calculation of your payment, which may show your hourly salary, number of KM/travel expenses, income tax, etc. You will see what you get paid and when you get paid. Salary slips are generated when the payment happens.