But to give you a rough idea of what Iโve done so far:
โข Register myself at Chamber of Commerce (kvk)
โข Set up a company bank account at Revolut (itโs free, but it sucks because there are 0 integrations with Dutch bookkeeping software, and those are aimed at the Dutch market so theyโve got tax rules and stuff built-in)
โข Set up a company bank account at Knab (Dutch online bank like Bunq but they seemed the cheapest for starting out)
โข Start a trial at Jortt as was recommended by a friend, the software seems nice as it tries to automate a lot of things, but it can only do so if it can read your (Dutch) bank account transactions. However as I mentioned they recommend using the built-in translator of your browser for other languages than Dutch, which I find quite a pity. There are many more alternatives so Iโd just give them a try, they all should offer trials, although some of them actually cost more to connect to your bank account, depending on the bank and software.
And thatโs it. I also did some stuff in regards to setting up my travels by train but thatโs probably too specific for you now. And I might go to the Dutch tax officeโs website (Belastingdienst) and request a provisional tax return based on my estimated freelancing income, because otherwise Iโll have to suddenly pay all of my taxes at once next year, and with a provisional tax return I believe you can request the Belastingdienst to calculate your monthly taxes and pay them immediately, just like your employer would do normally.