What's the difference between an interest rate and Annual Percentage Yield?

I see bank offering 5% interest on a nest egg tale and when you check, it shows 4.93% interest and 5.05% APY. What's the difference between the two?

Answers:
The APY is the number to look at, and is a function not purely of the interest rate itself, but how repeatedly the interest is credited to your go together:

Let's vote you amenable an description next to $100, and the explanation advertise a 5% interest rate: If the interest is remunerated annually, after 12 months, you'll hold $5 added to your be a foil for. If it's salaried monthly, however, you will obtain (5%/12) added at the start of respectively month, and by the second month, you'll be earn interest not single on the $100, but also on the 41.67cents interest you get salaried the first month! By the third month, you are earn (5%/12) * ($100.4167 + 41.84c), and so on...

Behold the miracle of compound interest!

If you can find an justification where on earth interest is compounded each day, you formulate out resembling a thug!


(Ironically, it is this "each day compounding" which turns what SEEMS approaching a credible interest rate on a credit card debt deeply efficiently into a quagmire for oodles folks near poor math skills...)
Annual Percentage Yield (APY) expresses an annual rate of interest taking into portrayal the effect of compounding, usually for deposit or investment products (such as a card of deposit). It is analogous to the Annual percentage rate (APR), which is used for loans.

Interest rate refers to the rate compensated minus any compounding. That's why the APY is other better. It reflect the compounding.


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