What you're spending is irrelevant. Read the tax codes of the countries you visit, and most likely you'll see that you owe that country tax for the work "arisi

What you're spending is irrelevant. Read the tax codes of the countries you visit, and most likely you'll see that you owe that country tax for the work "arising from that country". Check with the lawyer from that country and most likely you'll see that "arising from that country" includes sitting with laptop in hotel and working. Due to double taxation treaties most likely you'll end up paying the same amount of tax plus hassle/expenses for filing return in the visited country and for getting the foreign tax deducted from the tax of country of your residence. And of course visited country has very little means to measure your earnings and collect tax from you.