Iknow this will sound really bad but i really need an idiots guide to an interest only mortgage. i currently have an interest only mortgage for half the value of my house, how do i start paying the mortgage off and not just the interest, i am on a great rate. i just cant figure these things out. i have spoken to adviser and he suggested paying any extra money i have each month towards the mortgae but doesnt that mean i am just paying the interest and not paying to make the house freehold. any advice appreciated.