As far as I know, I can choose between “Einzelfirma” and adding my income to my husband's annual tax return form . The second option seems to be the easiest, at least for now. If you are already familiar with this type of taxation, please read the following questions:
1. How would I pay the AHV contributions? Will the Tax Office calculate them for me after we submit my husband's tax return and send me a bill?
1A. Some sources say that I have to register in Ausgleichskasse as soon as I start and provide an estimate of my income. Ausgleichskasse would then calculate AHV contributions based on that estimate and I will have to pay them every 3 months. Do you know if I really have to register? It would be easier to pay the taxes and AHV contributions once a year.
2. Should I lodge the money to a separate (business) account or can I still use the joint account that we have with my husband?
3. I suppose that in this model I cannot claim any expenses but I also heard all receipts have to be in my name. Is there any benefit of collecting receipts, then?
4. Can I issue any form of receipts for my clients as a proof of services provided? If yes, is there a specific template for such receipts? How should I track them?
5. In this model I do not directly register the business. Can I still fully advertise it and put a business plate on my door?
Thank you in advance for all your feedback.