Cyprus might have the lowest standard tax rate with 12,5% but don´t forget about the new GHS contributions which are now an extra 2,4% and while having a closer look Malta has an effective tax rate of 5% due to it´s 6/7 tax refund and Romania has a final corporate tax rate for micro companies...
The mentioned tax rates might be valid for private individuals, because of that you will also face social security contributions.
If you instead consider forming a company you could lower your tax bill in Romania to 1%, based on the revenue at the corporate level and another 5% would only...
romanian micro companies are taxed with 1% on their revenue - not profit - if it does not exceed 1 million euro and there is at least one employee.
another 5% withholding tax apply, but only when dividends are distributed to the shareholder.
Account opening with SOLO Bank can also be done remotely with a valid power of attorney instead of a personal visit.
Since SOLO is a private bank and only deals with individuals - not companies - there is no obligation to setup a company with business substance.
I have experience with Hipotekarna, Prva, Lovcen, Societe General and Zapad. All require personal visit to the bank in order to open an account. No remote opening. Hipotekarna has very poor support by phone. Emails are rarely answered and do not lead to satisfying results. Compliance is insane...
950 EUR for company formation incl. Registered Office and 700 EUR for remote bank account opening. If formed in a free zone, 5,000 USD in the first year and 4,000 USD in the consecutive years as a license fee, directly payable to the freezone.