Can I link my existing standalone Cryptocurrency Service Provider account to my IBKR account?

No, you must open (or have) an IBKR securities brokerage account with trading permissions other than Cryptocurrency first. You then might be eligible to request cryptocurrency trading permissions, at which point a Cryptocurrency Service Provider account will be created for you and linked to your IBKR trading platform's interface. To keep the cryptocurrency trading permissions you must maintain at least half of your account activity in something other than cryptocurrency. …

Yes, you can, but first make sure there is no cash balance, open positions or pending orders at your IBKR-linked Cryptocurrency Service Provider account. Quick steps:

1. Be sure you have no USD balance being held in your Cryptocurrency Service Provider account. If you do have a balance, you can transfer USD from your IBKR-linked Cryptocurrency Service Provider account to your IBKR securities brokerage account in IBKR Client Portal, or by using the…

No, you will not be able to place buy orders with Cryptocurrency Service Provider if your Cryptocurrency Service Provider account is not pre-funded.

Please Note…

To trade cryptocurrencies, you must become a client of Cryptocurrency Service Providers. When you trade cryptocurrency through the IBKR platform, although IBKR acts as your cashiering agent, IBKR has no custody or control over the cryptocurrency assets you hold in your account at Cryptocurrency Service Providers…