What box number is the income reported on your your 1099-MISC (Box 3 or 7)? As Critter#2 notes below, if you have a 1099-INT, then enter in the Interest section.
If you have a 1099-MISC, you can use TurboTax Deluxe to report the form as income (with no expenses)
Type 1099-MISC in the search box, then select the 'jump to' link. Enter the form details and the follow up questions. Be certain to answer the question 'Did the (form) involve an intent to earn money' NO. Continue on.
The $300 will be reported on line 21 as Other Income on your tax return.
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