What does a freelancer based in Switzerland need to consider in terms of taxation when selling digital services via the US based reseller Digistore24?

yes. As long as your main place of work is your home/office.

I have registered over 20 companies in the last decade and from my experience I can tell you that every country serves a different purpose. I run a small gambling company that I have registered in Malta due to the legality of online gambling there. I have another company registered in Delaware, whilst my main company is registered in the Netherlands. If your business is only online I would advise you to register it in Europe or if you must in the United States in Delaware/Nevada. Credibility wise I would say that registering your company in Singapore or Malta or Costa Rica, will not benefit you much opposed to say Delaware or The Netherlands. I am available for a call if you need anymore help. I am currently doing a promotion for a one time free 15 minute phone call so just send me a message for the discount code.

The income should be reported by the individual or business that provided the service and earned the income. If the 1099 is in your name, you could ask the issuing Company to change to the S-Corp if that is who earned the income. In the future, have a written agreement between your S-Corp and the Company you are providing service. Also, provide them with a Form W9, so they know where to report the 1099 income at year end.

I have established off-shore development relationships with individuals and firms in India, Ukraine, Belarus, Russia and Korea going back to 1996. You might find it a lot smoother to have them work through an established firm in India that is already set up with all appropriate licenses, tax-reporting, payment systems, and so on. It can be tricky enough to communicate the software requirements and other specifics of your project without you and them also learning and implementing processes to respect domestic and foreign regulations. If you'd like more information, feel free to set up a call.

There shouldn't be any tax consequences for the founders if you've made 83b elections--the election meant you paid tax already on the full value of the stock at the time of the election (presumably zero) even though it was subject to future forfeiture. If you sell newly-issued stock there should be no tax impact. If you sell your own common stock, you'd pay tax on the gain, but I doubt that is what you mean here. Of course, you should not take the free advice dispensed on Clarity and consult your own tax preparer--this is not tax advice.