What do you mean non-resident business bank account?
1. Account open for DR business by a non-resident? Possible, read below.
2. Account open for foreign (non-DR) business? Possible but you have to register for tax purposes in the DR.
1 --- If your DR business is registered, you will need to supply all corporate documents (registro mercantil, ONAPI - nombre comercial, statutes, authorization to open account, your passport etc.)
2 --- If your company is foreign based, unless you register its branch office in the DR you will not be able to open up DR business bank account. It's 10 x EASIER to register a new company in the DR than to domicilise foreign one in the DR.
You will need:
- all foreign corporate documents apostillized in the country of origin
- all foreign corporate documents translated to Spanish by legally appointed translator
- register the company as foreign company in the local Registro Mercantil
- get RNC# from DGII (Impuestos Internos)
- Open bank account.
As you can see the process is petty similar to opening up new company in the DR, with the addition of your having to get all foreign corporate documents legally translated (including all bylaws!!!) and apostillized. This can get hefty costly $$$ !