I don't have any experience with the intricacies of dealing with Germany's tax code, but I have been through the ringer with the US' IRS and HK's IRD. I would very strongly advise you against starting a new company in Hong Kong. You will have to prove that you are compliant with every box that needs to be checked to qualify for tax-free status every year. As was mentioned earlier in the thread, proving this to the IRD's satisfaction is going to cost both money and your time under the best of circumstances. Remember that you are always guilty of owing tax until you prove︀ otherwise. It's not like a Freezone company in the Middle East or IBC in other︁ jurisdictions where incorporating the right way equals zero tax for life. While simply paying the︂ tax for a year or two may be cheaper than all of the compliance hoops︃ you have to go through to get out of it, you run the risk of︄ getting hit extra hard when trying to claim you don't owe tax later. In addition︅ to proving you don't owe tax now they may demand that you prove how your︆ operation is materially different from when you paid the taxes you technically didn't owe. You'll︇ beat it, eventually, but all of this is a further time and money suck. Every︈ year there are more fees and compliance hoops (auditing of all accounts is both a︉ hassle and surprisingly high expense relative to the value provided rarely mentioned by people that︊ have never owned a HK company) that must be completed perfectly, even if you will︋ never actually owe tax. The red tape has been strongly moving in the wrong direction︌ for the last 7-10 years and shows no signs of easing up when everyone eligible︍ to run for public office is hand-picked by the CCP. In the current year Singapore︎ offers everything you would like about Hong Kong with fewer headaches and no risk of️ your structure being made obsolete by communists determined to transform Hong Kong into a crappier version of Shenzhen. If you believe polls 80% of Hong Kongers want to leave...that's never a good sign. Getting a bank account at a decent Singaporean bank isn't a cake walk anymore and will require a trip to Singapore (awesome city, make a vacation out of it) but it's nothing compared to trying to get an account in HK with less than $HK10m.
As a German citizen the US is a reasonably good offshore choice, but both state and federal tax codes are complicated enough that you do not want︀ to do this yourself based on a few things you read on the internet. Find︁ a decent lawyer in the state you will incorporate to set everything up properly. The︂ US is one of those jurisdictions that can be great to you if you set︃ everything up right the first time and an absolute nightmare if the slightest thing is︄ wrong. If you screw up your structure they can and will nail you to the︅ wall on a technicality. As a foreigner they'll probably be more interested in ripping you︆ off than sending you to minimum security prison, but still not something you want. Delaware︇ and Wyoming are common choices to incorporate, but Nevada, Florida, Texas and South Dakota offer︈ zero corporate tax without the scummy feeling a Wilmington, DE mailing address could potentially give︉ some of your clients. The prestige of having a Las Vegas, NV address may outweigh︊ whatever the difference is for your business in one of those other states. Las Vegas︋ is the new Times Square both for prestige and the quality of business done there.︌ It's also one of the few major cities that is nicer today than it was︍ 10 or 20 years ago. Something to consider.