The Money Mustache Community

Learning, Sharing, and Teaching => Ask a Mustachian => Topic started by: Workinghard on April 30, 2014, 03:00:24 PM

Title: Interest Rate Math Question (sigh)
Post by: Workinghard on April 30, 2014, 03:00:24 PM
What's is the difference in money earned if I had 35k in a savings account with Ally at 0.87% APY and interest rate versus the same amount at MMA in SunTrust at 0.05 APY and interest over the course of a year? I'm trying to decide if it's worth changing since we keep a large balance in our checking account anyway of 2-3 month's bills.
Title: Re: Interest Rate Math Question (sigh)
Post by: homeymomma on April 30, 2014, 03:09:03 PM
I'm not good at this stuff. I'm seeing this too simply perhaps.
35k x .0087 = 304
35k x .0005 = 17

Am I wrong?

Seems worth switching to me.
Title: Re: Interest Rate Math Question (sigh)
Post by: griffin on April 30, 2014, 03:36:26 PM
I'm not good at this stuff. I'm seeing this too simply perhaps.
35k x .0087 = 304
35k x .0005 = 17

Am I wrong?

Seems worth switching to me.
Nope you're entirely correct, assuming the amount of money in the account remains unchanged throughout the year. 35k is a lot of cash, but if you're sure you want to hold onto that much I'd definitely switch!
Title: Re: Interest Rate Math Question (sigh)
Post by: lb on April 30, 2014, 04:07:05 PM
We have about 40K in the same Ally Money Market account at  0.87% that we are saving for a downpayment on a house. It throws off about 30 bucks a month in interest. Free $!
Title: Re: Interest Rate Math Question (sigh)
Post by: Workinghard on April 30, 2014, 04:09:49 PM
Awesome! I'll "save" the calculations so I know how to do it in the future. The cash is for a vacation next year to Europe, a replacement car when we need it (ours are 12 and 15 yrs old), and possible roof replacement looming in the future.

Thanks for the help!

Lb, was there a reason you went with the MMA vs the savings account?
Title: Re: Interest Rate Math Question (sigh)
Post by: arebelspy on April 30, 2014, 06:01:51 PM
SmartyPig.com (BBVA Compass Bank), online only bank, offers 1%. Transfers take a few days in/out, but if you're not going to need the money on a day's notice, it's good for short term funds.
Title: Re: Interest Rate Math Question (sigh)
Post by: Workinghard on April 30, 2014, 07:22:09 PM
SmartyPig.com (BBVA Compass Bank), online only bank, offers 1%. Transfers take a few days in/out, but if you're not going to need the money on a day's notice, it's good for short term funds.

That's better than Ally. I'll have to check them out.  Thanks!
Title: Re: Interest Rate Math Question (sigh)
Post by: MarciaB on April 30, 2014, 07:28:07 PM
I'm getting 1% from MySavingsDirect (just switched recently...my other online bank was paying a whopping 0.1% - one-tenth of one percent - so I got a ten-fold increase by switching. Totally worth doing.
Title: Re: Interest Rate Math Question (sigh)
Post by: Workinghard on April 30, 2014, 07:39:35 PM
I'm getting 1% from MySavingsDirect (just switched recently...my other online bank was paying a whopping 0.1% - one-tenth of one percent - so I got a ten-fold increase by switching. Totally worth doing.

Have to admit, I like their name and website better than what arebelspy posted (no offense intended)!
Title: Re: Interest Rate Math Question (sigh)
Post by: arebelspy on May 01, 2014, 07:39:04 AM
I'm getting 1% from MySavingsDirect (just switched recently...my other online bank was paying a whopping 0.1% - one-tenth of one percent - so I got a ten-fold increase by switching. Totally worth doing.

Have to admit, I like their name and website better than what arebelspy posted (no offense intended)!

lol, I don't take any offense, I have no dog in the fight.

I agree that SmartyPig's name is stupid, but I don't really care about the name of the bank I use.  It's not a relevant factor to me.  :)