Can I monetize Korea-focused content as a foreigner before I have any company set up?

You can start earning from content before you have a company — many creators do — but there are limits worth knowing going in. The practical reality: platform payouts, ad revenue, and sponsorships are receivable as an individual in many cases, and small-scale content income often runs that way at first. Where it stops being simple is scale and formality — once income is steady, there are tax-reporting obligations, and once you're issuing invoices to Korean business sponsors, they'll want a proper tax invoice, which loops back to needing a business registration. There can also be income-type and withholding nuances for foreign individuals. I'm not a tax professional, so confirm the specifics for your situation with one. My take from doing the multi-platform thing: treat the pre-registration phase as validation, not as the final structure. Build the audience, prove the content earns, learn what actually monetizes — then formalize once the numbers justify the paperwork. Don't set up an entity for income that doesn't exist yet, and don't stay informal once it clearly does.