How can I enter property tax on land for which I receive royalties for natural resources? Turbo Tax has automatically asked for this in previous years.

Follow these steps:

1. Return to your royalty and edit. 
2. Continue past the income until you reach your depletion summary. 
3. Select More Expenses. 
4. Continue answering questions until you reach your Royalty Summary. 
5. Select to Start/Edit/ Update/ Revisit Expenses.