I'm assuming that you're entering information in the 1099-INT interview.
Nothing has changed in this interview from the prior year, at least not in the desktop editions. After entering your 1099-INT information you click "Continue" and on the next page - "Tell us if any of these uncommon situations apply" - you tick the box next to "I need to adjust the taxable amount." You then tell TurboTax the state(s) involved and on the page following that - "Report Interest Adjustment" you enter the amount and tick the "My accrued interest is included on this Form 1099-INT."
Tom Young
