The tax treaty
In force
The United States and Azerbaijan have an income tax treaty in force. It can lower the US tax withheld on dividends, interest and royalties paid to you, if you claim it on a W-8BEN with your Azerbaijani tax number, and it settles which country taxes what when both could. This is the 1973 treaty with the Soviet Union, which the United States still applies to Azerbaijan. It's older and narrower than modern treaties, so check what it covers before you rely on it.
Stripe
Not available locally
Stripe doesn't take businesses registered in Azerbaijan. A US LLC with an EIN and a US bank account is a US business, so it can apply for a US Stripe account, and that's often the main reason founders in Azerbaijan form one.
Banking
Mercury available
Mercury opens accounts remotely for US companies whose founders live in Azerbaijan. It asks for the EIN, the formation documents, your passport, a real business address and a description of the company's existing or planned US operations. Relay asks a non-US owner for a US address, an ITIN or Social Security Number and a US operating presence, so it rarely suits a founder living in Azerbaijan.
The time difference
UTC+4
New York is 8 hours behind Azerbaijan in summer. Everything we do is in writing, through your dashboard and email, and we reply within one business day, so the time difference rarely slows anything down.