I have a mortgage for 30 years, and thinking to shorten the years of payment. And I do not want to rI have a mortgage for 30 years, and thinking of shorten the years of payment. And I do not want to refinance because I have to pay another finance charges. Friends told me I can pay double the principal or pay extra amount into principal payment will help me shorten the years of payment and also interests. Is that the smart way to do so?January 09 2011 - Tulsa00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.