To send money to someone in the United States or abroad, you can use your bank's wire service. A form from your bank must be completed, either in person or online, and must include your bank account number as well as the recipient's name, account information, and routing number (for international transfers, you'll need the SWIFT ID or BIC instead of a routing number). The recipient could be able to get the money the same day if they are in the United States. The usual fee range is $15 to $50.
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