| Definitions |
| Mortgage amount | Original or expected balance for your mortgage. |
| Interest rate | Annual interest rate for your mortgage. Interest rates are generally lower for shorter term mortgages. |
| Marginal tax rate | This is your combined state and federal tax rate. This is used to calculate your potential income tax savings by deducting your mortgage interest. |
| Monthly payment | Monthly principal and interest payment (PI). Both 30 year and 15 year mortgages are shown. |
| Total payments | Total of all monthly payments over the full term of the mortgage. Both 30 year and 15 year mortgages are shown. |
| Total interest | Total of all interest paid over the full term of the mortgage. Both 30 year and 15 year mortgages are shown. |