Hi All going well, I'll be taking over a brick and mortar retail business in the near future, and as such will need to become a VAT registered sole-trader. With retail not being the bustling sector it once was, I may find myself with plenty down-time to think of side businesses to try. How does running unrelated side businesses work when you are a 'taxable person'? Two of the main aspects of the retail business are Key Cutting and 'household goods' retailing. Independently, these wouldn't reach the VAT threshold, but trying to separate and account for them separately would be a clear case of evasion, and wouldn't fly. That much is obvious. We also do a little bit of engraving in-house. If I were to set up an e-commerce store to try new engraving services/personalised goods and reach new markets, that would obviously also fall under the turnover of the main retail business. But business is slow, and I'm a not-bad musician, so a say I decide to start giving guitar lessons from the staff-room of the store in on occasional evenings after the store has closed. That's a separate business, no VAT to pay on that, right? I've also started up an unrelated print-on-demand T-shirt store, not earning anything so far but gradually I'll add designs and it may in time earn me a couple hundred quid a month, fingers crossed. No vat to pay on that, right? Say I start to video blog the ups and downs of life as an independent trader (and bard) on YouTube, giving business advice and whatnot - and by some daft miracle this YouTube channel gains a million views and I start getting a bit of ad revenue - that's a separate venture into media production, no vat to pay on it right? And I use my inexplicable YouTube fame to sell even more Print-on-demand merch, but then I realise I enjoy making things with my own hands anyway, so I buy a dye-sublimation/printing equipment and start to produce the shirts myself. But at this point, I'm creating things to sell in the workshop of my retail business (which already produces personalised goods), so it's essentially an extension of that - so do I pay vat on that? Indulge my daft examples, howzit work?