Originally posted by: dullard
Originally posted by: alkemyst
It's not a myth, but your lender has to be set up to apply the payments to principal.
I think you really misunderstood me because what you said is exactly what I said.
The reason for the shorter mortgage period is NOT due to the timing of the payments. The timing of the payments makes almost no difference at all to the amount you pay or the length of the loan (the timing is just some very minor interest change as you pointed out). You did point out the real reason (as did I). The real reason you get the mortgage paid off earlier is because you are paying MORE per year with a bi-weekly program. "It usually adds up to one extra payment a year". Exactly. You pay more per year, thus your mortgage is over sooner. The myth part comes from people thinking the timing of the payments causes the shorter mortgage. In reality the extra paid per year causes the shorter mortgage.
I just want people to realize that they are paying far more each year for the bi-weekly plans. They are confused by the math and think they are paying the same amount. Actually, you pay more than an extra months worth every year.
Case 1: Traditional loan, $1000/month
* You pay $1000 * 12 = $12,000/year.
Case 2: Biweekly loan, $500/two weeks
* Remember there are slightly more than 52 weeks in a year. 52.18 to be more exact. Thus, there are slightly more than 26 bi-weekly periods on average in a year.
* You pay $500 * 26 = $13,000/year on 82.1% of the years
* You pay $500 * 27 = $13,500/year on 17.9% of the years.
* You pay on average $500 * 26.09 = $13,045/year
Difference in average year = $13,045/$12,000 = 8.7% more.