> However, the system of corporate earnings taxation currently in force in Estonia is a unique system, which shifts the moment of corporate taxation from the moment of earning the profits to the moment of their distribution. In other words, earning profits in itself does not bring income tax liability, which arises only when earned profit is distributed to shareholders.
You can stay in the UK for a further 5 years from the date you get pre-settled status and the deadline for applying is 30 June 2021, as long as you were living in the UK before 31 December 2020.
The settlement scheme is basically just a mobile app for you to take a selfie, scan the tag in your passport using NFC and answer a few questions like "Are you currently in the UK?", "How many years have you been living here?", "What's your NI Number?" ..they will then check your employment records electronically.
So apply after you get your NI No. by letter and your limited company is setup. You will usually get a decision a few weeks later which is just an email, explaining how you can prove your status online to others (like landlords or employers) if needed.
Regarding taxes, google for "optimal directors salary and dividends uk" and you will find loads of articles by accountants explaining the how and why in detail.
Living in London might just be cheaper or similar as Berlin after tax savings. Because I believe in Germany, taking profits out of your company will incur an additional 25% personal tax whereas in the UK, dividends are only taxed at 7.5% up to a threshold:
If you're in the UK, Tesco's recipe site is really convenient because you can add all the ingredients to your shopping basket and then get it delivered or click and collect them:
https://realfood.tesco.com/
* Open a personal and business bank account, e.g. with Revolut or TransferWise
With a combination of low salary and issuing dividends your personal tax liability will be something like 5% on £50,000 of income (not counting corporation tax which is currently 19%), if you have a spouse or civil partner it's even better...but watch out for tax payments on account:
In my opinion, the UK is a great place to do business in Europe if you're working remotely for clients all over the world and London is a great place to live too (if you don't mind the high housing prices with an income that can support it).
If you change your mind later, you can always close your company and move away but getting a visa and moving here after Brexit will probably be a bit more complex.