Investment loan Interest write off on taxes

[Al Pat]

For those of you, who use primary home line of credit or equity to buy rental property. How do you write off or claim the interest on that loan on your taxes. Given that you used that loan to purchase your investment property.

This is for the scenario when you used the funds to do all cash purchase and until you refinance your investment property, you will be paying interest on that loan received on your home equity or line of credit.