Yes, there are tax implications for these types of transactions. First of all, you will need to file a Gift Tax Return, if you give away more than $18,000 per year, the you need to file a 709 Gift Tax Return that reports the gift. This is separate from your regular tax return. Receiving Crypto as a gift is not a taxable event unless you sell it or make a purchase with it.
In addition, you may have wire transfer reporting requirements to the IRS. Please review these requirements here. Look in the section entitled What's Cash.
If you receive more than $100,000 per tax year of crypto from a foreign person during the year, you need to report this is in a 3520 form. This is not a tax form but an informational form that the IRS requires. There is more information here regarding 3520 filing requirements.
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