I am a hobby photographer. I recently was approached by a pre-school to take their students' pre-school year-end/graduation pictures. I thought I could make some side money and said yes. I took the photos and uploaded them to a website. I signed up for stripe to accept payments from parents and linked it to the website. I disabled the Sales Tax option on Stripe. But the website that I used (Pixieset), had it enabled (I did, by mistake) and it collected sales tax for every print order. I now have $750 in sales in the last week.
I thought I could just pay the sales tax as a sole proprietor by going online. It turns out that I need to have a seller permit before I even sell anything. I don't have any legal entity set up. It just happened in a matter of a couple of days. What is my recourse? Do I incur huge penalties?
Edit: This is in California.
Edit2: I called CDTFA and I was able to create a temporary seller permit online. The rep walked me through the process. No issues. But always good to register BEFORE a planed sale.