Are gambling winnings taxable if won on a cruise ship?

[paulcox]

Ship was in international waters.  I received a W2-G for winnings from a slot machine. The amount was over $1,200. The cruise was on a Carnival Cruise Line ship that departed from Tampa, FL.

[Opus 17]

If you are a US citizen or permanent resident, you are required to report and pay income tax on all your worldwide income.

It is possible that the cruise line will use "international waters" as an excuse to not issue a W-2G form.  But that doesn't mean the money is not taxable, only that it will be harder for the IRS to catch you if you don't report it.

[rjs]

Since you received a W-2G, that means that the cruise line treated it as U.S. income. Just enter the W-2G in TurboTax as you would if it had been in a casino on land in the U.S. You have to enter the W-2G. It has been reported to the IRS.

[Critter]

Income of any kind is taxable on a US return no matter where in the universe it was earned.