Question : Can you explain to me in layman terms how adjustable mortgage rates work?
My sister has an adjustable rate mortgage. Over the past year her mortgage payments have gone up several times. Now her monthly mortgage payment is $ 2,235 for a 2000 sq ft home in a nice area. No new construction has gone up..so I dont understand…

I was under the impression if you paid your bills on time your monthly payment would adjust down not up.

My condo (2500 sq ft also in a very nice area) payments have gone down, but her payments keep rising..why?
DJM: You hit on something that required a phone call to my sister. I pay $ 50 over my monthly payment while my sister simply pays the monthly payment…

Great answers here. So far only one answer had me pulling out my hair because the person used a lot of jargon…
2nd mortgage rates

Best answer:

Answer by levindis
Adjustable mortgages are linked to some market rate depending on how the lender rights up the terms. If that rate increases so does your intrest rate and if the rate decreases so does your intrest rate. Now most adjustable loans have a maximum number of times a rate can be adjusted in a year. That is essentially how adjustable mortgages work.