A vacation property with personal use days is Type 1 (Residential rental). For Vacation Home Property, the program defaults to the rental percentage computed on the Schedule E Worksheet. If no business use percentage is entered, TurboTax uses 100%.
To see a full discussion of how this is percentage is used, open the form in Forms Mode and right-click on the Line 6 entry box and choose "About Business use %." Tax Help (On Demand Tax Guidance) will appear in a pop-up with more information.
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