I checked your account and it looks like our team has already assisted you with your tax request. You can check the ticket here.
VAT is applied to the Upwork service fee, premium Upwork memberships, and purchases of Connects. The tax is collected by Upwork and remitted to the Belarusian government. The Ministry of Taxes and Duties of the Republic of Belarus keeps track of all companies that have registered to pay VAT. You can find Upwork Global Inc. on the list here, by selecting “List of Foreign Companies.”