It pays to take some time for the choice of an accounting firm. Different firms have various specializations, most of them specialize in certain legal forms.
It is recommendable to assess how much financial knowledge the board of directors and the treasurer of the cooperative have, and which tasks should be outsourced to professionals.
Please find attached a list to discuss with a firm of accountant concerning different tasks and duties.
Appendix: Division of duties with a firm of accountants (.xlsx)
Text by Merja Hiltunen, Idekoop Osuuskunta