My business activity is only part-time and relatively small, do I need to do the bookkeeping aswell? Isn't it enough to make only a Business Tax Return? Asiakaspalvelu January 22, 2019 14:10 Updated Follow Yes, bookkeeping is mandatory for all businesses, regardless of size. Through us, it can be easily done without an accountant. Try for free! Related articles What is a voucher? Can i create invoices for free? Comments 0 comments Article is closed for comments.