rated:
posted: Aug. 28, 2008 @ 8:42p
fiftythreebytes said:Therefore, with a 5% cash rewards card the break-even point would be a charge of $182.66 (0.05x = $4.95 + 0.0229x). With the same card a $1500.00 mortgage payment yields a profit of $35.70 (fee = $39.30).
Not to nitpick or anything, but wouldn't the true break even point be at $166.40? Because you'd be earning 5% back on the $4.95 service fee and the 2.29% fee as well? Or are those not charged to the card?
Maybe my math is wrong but here is my equation
.05x + .05(4.95 + .0229x) = 4.95 + .0229x
.05x + .25 + .001145x = 4.95 + .0229x
.051145x - .0229x = 4.70
.028245x = $4.70
x = $166.40
with some rounding in there etc.
So on a $1500 payment, you'd make $75 + $.25 + $1.72 - 4.95 - 34.35 = $37.67?
Also note that breakpoint at 3% rewards (Citi AMEX Plat with 3pts/dollar for 24 months - $125 annual fee) would be $616.42. That could be a little more useful for those looking just to make their regular mortgage payments for a couple years and benefit from the float.
If I have countrywide, can I pay Bank of America and have it work?
Message edited by: bassmanben on 2008-08-28 21:12:53 CDT