VAT from December's business activity is payable in February. So January's VAT is payable in March... and so on. If your toiminimi is a small one , then I suggest you apply to pay your VAT on a quarterly basis (this is possible if your annual (forecast) income is below a certain amount).
There are some really good courses available to help you get started with business admin and VAT and they are FREE, you can enrol on-line, all you need is your business ID number:
I attended the course a couple of years ago, it is a nice place to meet other people who have just started up and exchange ideas. The courses are quite informal so you get an opportunity to ask lots of questions and you get a copy of the lecturer's presentation to take home.
Last edited by Rosamunda on Sun Feb 12, 2012 3:33 pm, edited 1 time in total.