Investors & landlords

@Rick19744 Niw I see what you are saying. in the first year  the interest allocated for the primary home is

(total interest charged by the bank in the full year  * 750 )/1000. Assuming that total principal that got paid in the first year  year is is 30K,  - the said amount  in the second year would be (total interest charged by the bank in the full year  * 720 )/1000 ... and so on.

Did I get that right?

I too would calculate it this way. But honestly, there is some principal getting paid every month. I don't know whether IRS expects you to calculate this every month.