When you close your first trade on Poloniex, the money should appear in your account balance. Nevertheless, there may be a waiting period before their withdrawal.
This waiting period is typical for newly registered accounts on some exchanges, such as Poloniex. Usually, security and fraud prevention are the main reasons for implementing it. The exchange might carry out extra verification checks or put temporary limits on withdrawal capabilities during this period.
As a result, even though your money might show up in your account balance as soon as you make your first trade, you might have to wait a little while to actually withdraw it. Make sure to review Poloniex's policies as well as any emails or notifications you receive from the exchange to find out when new accounts can make withdrawals.
If you have additional information or insights, feel free to share them in the comments or file your complaint.
