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Chris Martin, Real Estate Pro in 30030

How do I calculate future 5/1 ARM payments on a loan in its seventh year with lump sum principal added?

Asked by Chris Martin, 30030 Wed Jun 23, 2010

I have a 5/1 ARM. It's completing it's 7th year in August and its rate will adjust then. It's currently 3.75 so let's say it hypothetically rises to 4.75. The balance in August will be $127800, since I've made many lump sum extra principal payments in the psat years.
Can I use a regular mortgage calculator to figure out what my monthly payment will be post-August? Or do I need to use a different formula because I"m at the middle of the loan rather than the beginning? THanks.

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http://www.bankrate.com has great mortgage calculators.

Flo Hammond
Harry Norman, Realtors
flo.hammond@harrynorman.com
0 votes Comment Flag Wed Apr 25, 2012
Sounds like you are already aware that you should consult your loan docs to understand which index your ARM is tied to and how much is added to it to determine your new rate. Here's the good news -- your loan may very likely decrease, not increase. The federal rate of funds is near zerio, and most margins are no more than 2.75 to 3 additional points. Good luck!
0 votes Comment Flag Sun Sep 12, 2010
You should be able to use a normal calculator if it allows you to enter the term. Trulia offers one at http://www.trulia.com/mortgage/calculator/payment/ . I you want help working through it, feel free to contact me. I'm in Decatur, and would be happy to go through the details. There are some factors that could be addressed in your specific loan that will affect the actual payment, but in a straight forward scenario, just use the calculator referenced above adjusting the months to the remaining term of your loan and the new interest rate.
0 votes Comment Flag Wed Jun 23, 2010
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