> In my experience (UK), company tax filings are very simple if you have a solo business selling online, and not more difficult than tax filings as an individua

> In my experience (UK), company tax filings are very simple if you have a solo business selling online, and not more difficult than tax filings as an individual If you haven't done it before, I think it's realistically several days of work over the first year to get up to speed (e.g. dividends, payments on account, what you can expense, deadlines + fines, setting up a business account). Most of the time you'll have to do a personal tax return at a minimum and the company tax return would be on top of the personal tax return (so extra rules to learn and extra paperwork you could forget to submit during the year). I'm not saying it's impossible and you shouldn't look at forming a company, but I wouldn't call it simple in terms of time and stress, especially when you want to focus on validating a modest side project.