Anybody with experience of managing treasury for a small pre-school?

[FelicityFeline]

I have just taken over the treasury management of a little playgroup (pre-school), with four staff and a group of about 30 kids. I am a volunteer, as are the other committee members. Most of the work is fine, all Excel based and fairly manual though. However, I also need to do payroll, using HMRC basic tools, but this is where the problems are occurring. Is it normal for a volunteer to do the payroll? I don't mind doing it but it is a bit tricky and i am conscious that it is quite a responsibility, I wonder if it is something usually outsourced to a professional accountant? I am also worried that if i mess something up, i am liable, even though i am unpaid and untrained.
Any advice of the processes and systems you use would be great please? Thank you!

Hi. I'm about to start helping out for our preschool. I won't be directly involved in payroll but another of the parent volunteers is managing that.

Those of us new to the committee are having handover meetings with the previous volunteers.

Could you track down who did it last? Are there any spreadsheets etc already set up?