Hello
On 01/01/2023, I started as a self-employed person in a secondary occupation. I read (https://dexxter.be/kan-ik-aankopen-inbrengen-van-voor-de-opstart-als-zelfstandige/) that you can still claim costs incurred for start-up. From my case, these costs relate to December 2022. Can I simply enter them as expenses now in 2023?
Kind regards,
Annelies