Yes I believe doing tax/accounts yourself is simple if your tax affairs are simple. All the online book keeping software nowdays is quite sophisticated. I just have to type in what I bought or sold.
The VAT I pay each quarter is just a sum of the VAT I typed in on entry. So generating and submitting the VAT return is literally just one click.
End of year tax is just the difference been costs and sales (profit). In the UK, HMRC, provide you this PDF form where you input the total sales etc, they calculate the tax for you. So it really is just form filling.
I believe being a native Belgium there is nothing stoping you from forming a UK company, nor taking it's profits back to Belgium?
Even if you carry on launching this service 'just as yourself', that's being self-employed, or a sole-proprieter, you are the legal entity that is the company, and are personally liable for it. People setup separate legal entities 'companies' because it keeps their liability separate from their personal lives.
People can own many companies and it has no bearing on if they have a full time job with someone else. In your case you would setup a 'Limitada' (Ltd) company and this can be done online at https://www.portaldaempresa.pt
I'm from the UK, setting up a company is easy, cheap. Each year I need to submit a small set of accounts, and a tax return. The first time you do this might seem hard, but it's basically form filling, and after the 2nd time it's much easier and simple.
Concentrate on your product, when you take on investment or make profit, look into setting up a company.
I believe it's common for a developer to have their own company to use to sell all their products over their carears.
Spammers likely use the public API to send the fake traffic (https://developers.google.com/analytics/devguides/collection...). The issue Google has is they need to provide a way to authentiate the data rather than rely on the public tracker id, then at least the data could be relayed server side after the server has already filtererd out spam; it would also be less trivial to generate fake traffic reports too.
One tip is to set the main view to filter only to include your actual domain name. I notice a lot of the fake traffic is for traffic on other domains. I don't think these spammers are crafting fake data specific for your website. Much like comment spam, the same HTTP GET is executed millions of times against a list of defined tracking ids they have obtained.
The VAT I pay each quarter is just a sum of the VAT I typed in on entry. So generating and submitting the VAT return is literally just one click.
End of year tax is just the difference been costs and sales (profit). In the UK, HMRC, provide you this PDF form where you input the total sales etc, they calculate the tax for you. So it really is just form filling.
I believe being a native Belgium there is nothing stoping you from forming a UK company, nor taking it's profits back to Belgium?