I paid a supplemental property tax but its not accounted in my 1098. Where do I enter the additional supplemental tax amount?

[DS30]

You can include under the home section as either other propertytaxes or include as part of your home property taxes. (Either way it will be reporting in total on your Schedule A.)

To enter property tax information in TurboTax, log into your tax return (for TurboTax Online sign-in, click Here and click on "Take me to my return") type "Schedule a" in the search bar then select "jump to Schedule a". TurboTax will guide you in entering this information.