Can we record employees holidays in payroll database, then record on payslip when holidays taken?

Hello kasia3, thanks for joining this thread. In QuickBooks Online Standard Payroll, holidays are added at the point of running the payroll; there's no booking system to enter the start and end dates. To add the holiday pay, create the pay type by navigating to the employee > actions > additional pay > select the + icon > choose other earnings > rename and enter the default amount (tip: you can enter zero here and change the default amount when you run payroll). 

The new pay type will be added to the employee record. The pay type is also added to the company settings, so that you can use it for other employees. To include or exclude this earning pay type in your employee’s pay, select the slider to turn it on or off in the employee record. 🙂