Where should I register my business to pay less tax, legally
The honest answer: where you actually live and work decides most of it. Here is what genuinely moves the number, and what does not.

Business5 min readSole traders, freelancers, creators and small company owners choosing a country or a state.
The short answer
- Tax follows where the work is done and where you are resident, not the address on the certificate.
- The real choices are your structure, your salary and dividend mix, and your timing.
- State or territory choice matters in the United States. It barely matters in the United Kingdom or Australia.
Biggest lever
Structure
Sole trader against company
Second lever
How you pay yourself
Salary, dividends, pension
Overrated lever
The address
Unless you truly move
Only if you want the detail
What actually decides your tax bill
Tax authorities look at where the value is created: where you sit, where your staff sit, where decisions are made, and where your customers are for sales tax.
United Kingdom
Companies House registration is national, so a London or a Cardiff address changes nothing on tax.
United States
Here the state genuinely matters, but only where you and your people actually are. A Delaware or Wyoming company still pays tax where the work happens, and often has to register as a foreign entity in your home state as well.
Australia
Company registration is federal through ASIC, so the state does not change income tax. Payroll tax and land tax do differ by state once you have staff or property.
What people get told, and what is true
I will register in Delaware or Dubai and pay nothing.
If you live and work elsewhere, your home country taxes you, and you may now owe two sets of filings instead of one.
A company always beats being a sole trader.
Below a certain profit the running costs and payroll admin cost more than the tax saved.
Now do it on your numbers
Reading is the easy half. The saving comes from applying this to your income, your country and this tax year, with the deadline written down.
Where this comes from
General guidance, not personal advice. Anything involving a company, a trust or another country should be checked by a qualified accountant or tax adviser before you act.