To send USD wire transfers, you must first activate this feature in your Kraken account.
There are two ways US clients can fund their Kraken account with USD:
Normal USD domestic wire transfer funding
Activation instructions: Sign into your account and navigate to the Funding > Deposit > US Dollar (USD) page, then click the "Activate" button. Stay on this webpage.
Once activated, you can deposit a wire transfer using a Fedwire enabled routing number after agreeing to the ToS, or initiate a withdrawal after adding a bank account to your Kraken account.
High Limit USD Funding
Eligibility: Tier 4 verified US individuals or US corporations.
Activation instructions: Open a support ticket with our Transfer Limits Increase team.