Notional Principal Amount

Categories: Banking, Accounting

To get to this one, we have to plow through a little background info on interest rate swaps.

An interest rate swap involves two parties trading the proceeds from debt instruments they own. They don't swap the actual instruments...just the money they earn from them. Usually, one side of the deal has a fixed-rate investment and the other side has an adjustable-rate one. The fixed-rater wants to live it up a little, take on the extra risk (and extra potential upside) of the adjustable-rate situation. Meanwhile, the adjustable-rater wants to slow down a bit and live a more stable lifestyle...get the sure-thing confidence that comes with a fixed-rate investment. The notional principal amount represents the underlying dollar value of the debt instruments being swapped.

You own a 10-year note with a fixed interest of 7.5%. Your buddy has a 10-year adjustable-rate note currently paying 8%. You both agree to an interest rate swap. You'll receive the proceeds from the 8% rate, though you accept that the number might change over time because it's an adjustable rate. Meanwhile, your pal will now receive your steady-eddy 7.5% fixed rate. You agree to a notional principal amount of $5,000. That might not represent the total value of the debt instruments you hold. Your 10-year note might be worth $20,000 and your friend might hold a $15,000 note. But for the purposes of the swap, you both agree that you're just paying on an underlying value of $5,000. So, in the first year, you send them a check of $375 (7.5% of the notional principal amount of $5,000). Meanwhile, your friend sends you a check of $400 (8% of the $5,000 figure).

Related or Semi-related Video

Finance: What is principal?707 Views

00:00

finance a la shmoop what is principle answer its the loan amount you borrow

00:08

when you do you sign a bunch of papers promising to pay back the principal and [Person signs paper]

00:12

the interest that goes with it and that interest is like rent you have to rent

00:17

that money you swear up and down you'll pay back the principal that princess is

00:21

not necessarily your pal it might be a monkey on your back it might be a mule [Mule kicking a man]

00:26

that kicks you the wrong way but you owe it you owe that principal to the lender

00:32

who loaned it to you and you want to put it on a diet as fast as you can

00:37

why well because when that principal shrinks the rent you owe on it shrinks

00:41

as well all right here's some simple math you borrow 40 grand by a

00:45

three-year-old ludicrous mode enabled Tesla with a few minor dents and you [Man driving a supercar]

00:51

know you got a few shards of deer antlers stuck in the grille there for

00:54

free you are considered a risky bet by the lenders loaning you your money or

00:58

principle partly because of the way you drive so the rent on that principle 12%

01:03

a year or 1% a month big interest rates because well you're such a crappy driver

01:08

so on 40 grand of principal the cost to rent that money is 400 bucks a month or

01:12

$4,800 a year that is just to stay even on the principle you've borrowed you [Principal interest payment chart appears]

01:18

have to pay $400 every month and that's just the interest if you paid 30 40 50

01:23

60 months of 400 bucks a month well you would still owe that principal of 40

01:29

grand because all you did was baby interest or rent on it

01:31

ouch but what if he went six months paying a full thousand dollars a month

01:35

yes much would go from not eating or something like that well what would [Guy driving blue tesla]

01:39

happen think about that first month you've quote overpaid unquote by 600

01:44

bucks so if your loan resets or recalibrates every month well then you

01:48

get to put your principal at least a little bit on a diet so after that first [Principal constricted by tape measure]

01:53

month of paying a grand your 40 grand in debt goes down to thirty nine thousand

01:59

four hundred dollars pay a thousand bucks another month and while you're

02:01

still paying twelve percent a year or one percent a month to rent that money

02:05

only now that monthly rent was reset at one percent of thirty nine thousand four

02:11

hundred or 394 bucks right six dollars cheaper

02:14

than the 400 you started with but you paid a grand so now you get to use 606

02:20

dollars to pay down the principal and see the math there the new principal

02:23

thirty nine thousand four hundred minus at six hundred six it's now thirty eight

02:27

thousand seven hundred ninety four dollars that you owe do a grand another

02:30

month and you get to pay down even more of the principal about three hundred

02:34

eighty eight bucks is attributable to interest but you paid a grand so that's

02:38

a thousand minus the three eighty eight there so then that goes to principal pay

02:42

down or $612 a principal pay down alright you're getting the gist here as

02:46

you paid down the principal you get to attribute more and more of that made-up [Clock ticks as money stacks land]

02:51

thousand dollars a month payment so check out what happens when you just

02:55

keep going and as we look a couple of years into the future just look at how

02:58

little interest there is now here relative to what there was when we

03:03

started so yeah it's totally worthwhile to pay

03:05

more than minimum payments when you can and you know really as much as you can

03:09

manage that way when your bank statement for what you owe arrives in the mail you [Bank statement appears through letter box]

03:14

you know don't feel like a dear

Find other enlightening terms in Shmoop Finance Genius Bar(f)