Introduction to Mortgage Loans | Housing | Finance & Capital Markets | Khan Academy

– [Voiceover] What I
want to do in this video is explain what a mortgage is. I think most of us have at
least a general sense of it, but even better than that,
actually go into the numbers and understand a little bit
of what you are actually doing when you’re paying a
mortgage, what it’s made up of and how much of it is interest versus how much of it is
actually paying down the loan. Let’s just start with a little example. Let’s say that there
is a house that I like. Let’s say that that is the house that I would like to purchase. It has a price tag of, let’s say that I need to pay $500,000 to buy that house. This is the seller of
the house right here. And they have a mustache. That’s the seller of the house. I would like to buy it. I would like to buy the
house. This is me right here. And I’ve been able to
save up $125,000 dollars. I’ve been able to save up
$125,000 but I would really like to live in that house so I go to a bank. I go to a bank, let me get
a good color for a bank. That is the bank right there. And I say, “Mr. Bank, can you lend me “the rest of the amount
I need for that house?” Which is essentially $375,000. I’m putting 25% down.
This number right here, that is 25% of $500,000. So I ask the bank, “Can I
have a loan for the balance? Can I have $375,000 loan?” And the bank says, “Sure.
You seem like a nice guy “with a good job who
has good credit rating. “I will give you the loan but while you’re paying off the loan you can’t
have the title of that house. “We have to have that title of the house “and once you pay off the loan, “we’re going to give you
the title of the house.” What’s gonna happen here is
the loan is gonna go to me, so it’s $375,000. $375,000 loan. Then I can go and buy the house. I’m gonna give the total $500,000, $500,000 to the seller of the house, and I’ll actually move
into the house myself, assuming I’m using it
for my own residence. But the title of the house, the document that says who actually owns the house. This is the home title. This is the title of the house. Home title. It will not go to me.
It will go to the bank. The home title will go from the seller, or maybe even the seller’s bank, because maybe they haven’t
paid off their mortgage. It will go to the bank
that I’m borrowing from. This transferring of the
title to secure a loan. When I say “secure a
loan,” I’m saying I need to give something to the
lender in case I don’t pay back the loan or if I just disappear. This is the security right here. That is technically what a mortgage is. This pledging of the title
as the security for the loan, that’s what a mortgage is. It actually comes from old French. Mort means dead, and
the gage means pledge. I’m 100% sure I’m mispronouncing it, but it comes from dead pledge because I’m pledging it
now but that pledge will eventually die once I pay off the loan. Once I pay off the loan this
pledge of the title to the bank will die and it will come back to me. That’s why it’s called a
dead pledge, or a mortgage. And probably because it
comes from old French is the reason we don’t say
mort-gage, we say mortgage. But anyway, this is a
little bit technical, but normally when people
refer to a mortgage they’re really referring
to the loan itself. They’re really referring
to the mortgage loan. What I want to do in
the rest of this video is use a screenshot from
a spreadsheet I made to actually show you the math, or actually show you what your
mortgage payment is going to. You can download this
spreadsheet at khanacademy, Or actually, even better, just
go to the downloads folder and on your web browser
you’ll see a bunch of files, and it will be the file
called MortgageCalculator, MortgageCalculator.xlsx. It’s a Microsoft 2007 format. Just go to this URL, then
you’ll see all the files there and you can just download this file if you want to play with it. What it does here, in this
kind of dark brown color, these are the assumptions
that you can input and then you can change these
cells in your spreadsheet without breaking the whole spreadsheet. Here I’ve assumed a 5.5% interest rate. I’m buying a $500,000 home. It’s a 25% down payment, that’s the $125,000 that I had saved up, that I talked about right over there. And then the loan amount. Well, I have 125, I’m
gonna have to borrow 375, it calculates it for us. And then I’m gonna get a
pretty plain vanilla loan. This is gonna be a 30 year. When I say term in years, this
is how long the loan is for. So 30 years. It’s gonna be a 30 year
fixed-rate mortgage. Fixed rate, which means the
interest rate won’t change. We’ll talk about that a little bit. This 5.5% that I’m paying
on the money that I borrowed will not change over the
course of the 30 years. We will see that the amount I’ve borrowed changes as I pay down some of the loan. This little tax rate that I have here, this is to actually figure
out what is the tax savings of the interest deduction on my loan. We’ll talk about that in a second, you can ignore it for now. Then these other things
that aren’t in brown, you shouldn’t mess with these if you actually do open up the
spreadsheet yourself. These are automatically calculated. This right here is a
monthly interest rate. So it’s literally the
annual interest rate, 5.5%, divided by 12. And most mortgage loans are
compounded on a monthly basis so at the end of every month
they see how much money you owe and they will charge you this much interest on that for the month. Now given all of these assumptions, there’s a little bit of
behind-the-scenes math, and in a future video I
might actually show you how to calculate what the
actual mortgage payment is. It’s actually a pretty
interesting problem. But for a $500,000 loan–
Well, a $500,000 house, a $375,000 loan over 30 years
at a 5.5% interest rate, my mortgage payment is
going to be roughly $2,100. Right when I bought the house, I want to introduce a
little bit of vocabulary, and we’ve talked about this
in some of the other videos. There’s a asset in question
right here, it’s called a house. And we’re assuming it’s worth $500,000. We’re assuming it’s worth
$500,000. That is an asset. It’s an asset because it
gives you future benefit; The future benefit of
being able to live in it. Now there’s a liability
against that asset, that’s the mortgage loan. That’s a $375,000 liability. $375,000 loan or debt. If this was your balance sheet, if this was all of your assets
and this is all of your debt, and you were essentially
to sell the assets and pay off the debt, if you sell the house you get the title, you can get the money, then
you pay it back to the bank. Well actually, it doesn’t
necessarily go into that order but I won’t get too technical. But if you were to unwind
this transaction immediately after doing it, then you
would have a $500,000 house, you’d pay off your $375,000 in debt, and you would get, in
your pocket, $125,000, which is exactly what your
original down payment was. But this is your equity. The reason why I’m pointing it out now is, in this video I’m not
gonna assume anything about the house price,
whether it goes up or down, we’re assuming it’s constant. But you could not assume it’s constant and play with the
spreadsheet a little bit. But I’m introducing this
because as we pay down the debt this number’s going to get smaller. So this number is getting smaller. Let’s say at some point
this is only 300,000. Then my equity is going to get bigger. So you could do equity is
how much value you have after you pay off the debt for your house. If you were to sell the
house, pay off the debt, what do you have left over for yourself. This is the real wealth in the
house, this is what you own. Wealth in house, or the
actual what the owner has. What I’ve done here is– Actually before I get to
the chart let me actually show you how I calculate the chart. I do this over the course of
30 years, and it goes by month. So you can imagine that there’s actually 360 rows here in the actual spreadsheet, and you’ll see that if
you go and open it up. But I just want to show you what I did. On month 0, which I don’t show
here, you borrow $375,000. Now, over the course of that month they’re going to charge you .46% interest. Remember, that was 5.5% divided by 12. .46% interest on $375,000 is $1,718.75. So I haven’t made any
mortgage payments yet. I’ve borrowed 375,000. This much interest essentially
got built up on top of that, it got accrued. So now before I’ve paid
any of my payments, instead of owing 375,000 at
the end of the first month, I owe $376,718. Now, I’m a good guy, I’m not
gonna default on my mortgage so I make that first mortgage payment that we calculated right over here. After I make that payment
then I’m essentially, what’s my loan balance
after making that payment? Well, this was before making the payment, so you subtract the payment from it. This is my loan balance after the payment. Now this right here, the
little asterisk here, this is my equity now. So remember, I started
with $125,000 of equity. After paying one loan balance,
after my first payment, I now have $125,410 in equity, so my equity has gone up by exactly $410. Now you’re probably saying,
“Gee. I made a $2,000 payment, “roughly a $2,000 payment, “and my equity only went up by $410 “Shouldn’t this debt
have gone down by $2,000 “and my equity have gone up by $2,000?” And the answer is no because you had to pay all of this interest. So at the very beginning, your payment, your $2,000 payment, is mostly interest. Only $410 of it is principal. So as your loan balance goes down you’re going to pay less interest here, so each of your payments are going to be more weighted towards principal, and less weighted towards interest. And then to figure out the next line, this interest accrued right here, I took your loan balance
exiting the last month, multiplied that times .46%. You get this new interest accrued. This is your new pre-payment balance. I pay my mortgage again.
This is my new loan balance. And notice, already by month
two, $2 more went to principal. and $2 less went to interest. And over the course of 360
months you’re going to see that it’s an actual, sizable difference, and that’s what this
chart shows us right here. This is the interest
and principal portions of our mortgage payment. So this entire height
right here, this is– Let me scroll down a little bit. This is by month. So this
entire height, you notice, this is exactly our mortgage
payment, this $2,129. Now, on that very first month
you saw that of my $2,100, only $400 of it, this is the $400. Only $400 of it went to
actually pay down the principal, the actual loan amount. The rest of it went to pay down interest, the interest for that month. Most of it went for the
interest of the month. But as I start paying down the loan, as the loan balance gets
smaller and smaller, each of my payments, there’s
less interest to pay. Let me do a better color than that. There’s less interest. We go
out here, this is month 198, over there that last month
there was less interest, so more of my $2,100 actually
goes to pay off the loan until we get all the way to month 360. You can see this in
the actual spreadsheet. At month 360 my final payment is all going to pay off the principal. Very little, if anything,
of that is interest. Now, the last thing I want
to talk about in this video, without making it too long, is this idea of a interest tax deduction. A lot of times you’ll hear
financial planners or realtors tell you the benefit of buying your house is it has tax advantages, and it does. Your interest is tax deductible. Your interest, not your whole payment. Your interest is tax deductible. I want to be very clear
what deductible means. First let’s talk about
what the interest means. This whole time over 30 years
I am paying $2,100 a month, or $2129.21 a month. Now the beginning, a
lot of that is interest. So on month one, 1,700
of that was interest. That $1,700 is tax deductible. As we go further and further, each month I get smaller and
smaller tax deductible portion of my actual mortgage payment. Out here the tax deduction
is actually very small, as I’m getting ready to
pay off my entire mortgage and get the title of my house. I want to be very clear on this notion of what tax deductible even means, because I think it is
misunderstood very often. Let’s say in one year
I paid, I don’t know, I’m gonna make up a number, I didn’t calculate it on the spreadsheet. Let’s say in year one I
pay $10,000 in interest. 10,000 in interest. Remember, my actual payments
will be higher than that because some of my payments went to actually paying down the loan. But let’s say 10,000 went to interest. And let’s say before this, let’s say before this
I was making 100,000, let’s put the loan aside. Let’s say I was making $100,000 a year, and let’s say I was paying
roughly 35% on that 100,000. I won’t go into the whole tax structure and the different
brackets and all of that. Let’s say if I didn’t have this mortgage I would pay 35% taxes, which would be about $35,000
in taxes for that year. This is just a rough estimate. When you say that $10,000
is tax deductible, the interest is tax deductible, that does not mean that I can
just take it from the $35,000 that I would have normally
owed and only pay 25,000. What it means is I can deduct
this amount from my income. When I tell the IRS how
much did I make this year, instead of saying I made $100,000,
I say that I made $90,000 because I was able to deduct this, not directly from my taxes, I was able to deduct it from my income. So now if I only made $90,000 — and this is, I’m doing a
gross oversimplification of how taxes actually get calculated — and I pay 35% of that, let’s
get the calculator out. Let’s get the calculator. So 90 times .35 is equal to 31,500. So this will be equal to $31,500. $31,500. Off of a 10,000 deduction,
$10,000 of deductible interest, I essentially saved $3,500.
I did not save $10,000. Another way to think about it, if I paid 10,000 interest
and my tax rate is 35%, I’m gonna save 35% of
this in actual taxes. This is what people mean
when they say deductible. You’re deducting it from the income that you report to the IRS. If there’s something that
you could take straight from your taxes, that’s
called a tax credit. If there was some special
thing that you could actually deduct it straight from your
taxes, that’s a tax credit. But a deduction just
takes it from your income. On this spreadsheet I
just want to show you that I actually calculated, in that month, how much of a tax deduction do you get. So for example, just off
of the first month you paid $1,700 in interest of your
$2,100 mortgage payment, so 35% of that, and I got 35%
as one of your assumptions, 35% of $1,700, I will save
$600 in taxes on that month. So roughly over the
course of the first year I’m gonna save about $7,000 in taxes, so that’s nothing to sneeze at. Anyway, hopefully you found this helpful and I encourage you to
go to that spreadsheet, and play with the assumptions, only the assumptions in this brown color unless you really know what
you’re doing with a spreadsheet, and you can see how this
actually changes based on different interest rates,
different loan amounts, different down payments, different terms. Different tax rates, that will actually change the tax savings, and you can play around
with the different types of fixed mortgages on this spreadsheet.

73 comments on “Introduction to Mortgage Loans | Housing | Finance & Capital Markets | Khan Academy”

  1. nintendogaming .com says:


  2. Amer A says:


  3. MustafaBarodawala says:

    i like the drawing of that house

  4. Boricua Nice says:

    Very helpful video, now how do i explain this to my wife in woman talk???

  5. Irfan Soeparno says:

    They reach 2,000,000 subscribers

  6. Marty McFly says:

    What you unfortunately fail to mention here is that the money you lend is created out of thin air when it is credited to you.
    The original French translation of mortgage 'dead pledge' needs to understood literally, it is a pledge to pay back a principal amount that gets created out of nothing being money that is backed by nothing tangible, plus interest to private financial institutions until you are dead.

  7. Kevin Liao says:

    Don't forget property taxes 😉

  8. purno1 says:

    they forgot to say..that you "never" own the house. Go see some Jordan Maxwell videos.. he breaks it down to real man terms.

  9. Ahmad Abu-Gdairi says:

    @MikeLopez so sexest. Woman understand everything men do.

  10. Darren Hong says:

    Amazing video on the basics of mortgages. I'd like you to more of these since the banks clearly don't want you to know how this works. Also, that tax thing sucks didn't realize the government takes away so much. Our millennial generation needs to be taught this because of 2008 as seems like it is going to happen here in Canada if out notion is to buy without thought.

  11. Vinnie says:

    This video is extremely helpful. As a freshman in college, i know a lot less than i should about living in the real world than i should. This video is very clear, and a lot makes sense to me now. It would be very nice if you could continue to put out some of these "general knowledge in the real world" videos for us who dont know anything about it, such as myself. Thanks again for the great vid!

  12. Spoif says:

    @Khan Academy Very thorough explanation.   Thank you.  Whether tax paid on mortgage interest can be offset against income tax is dependent on government policy.

  13. xApemanx says:

     hmm payment calculation? sounds like calculus. new goal to learn how before video

  14. Philip J says:

    Thanks for the video! Very interesting concepts.

  15. James Black says:

    The origin of mortgage means until your death, you have this pledge. Like you said, the bank has security should anything happen to you.

    Question: does the details of the mortgage the same globally(I'm in the UK)?

  16. sidd200 says:

    Taylor Swift is seriously the best artist out there right now!

  17. Nicholas Wilhite says:

    Are there transcripts or actual captions for your videos? The Google automatic captioning does not work very well (give it a try, turn the sound off and see how much sense it makes). Deaf people are missing out on this resource. Thanks.

  18. SuperFpac says:

    What if you pay a down payment of more than 50% on the house? Does the bank still keep the title until you pay off what you owe them?

  19. PCDIY says:

    the handwriting is barely legible 

  20. swigga4O says:

    Thank you Khan! THIS right here is one of real world essentials EVERY kid should be taught… I've always believed that this stuff should be required teaching in high school.

  21. El Patron says:

    Lol that introduction music at 0:00

  22. Timothy Hill says:

    This will be more than helpful for future, long term investments. Thanks for sharing this information! It's as if taking your time and diligently working hard will reward you greater over time.

  23. Marie McDôwell says:

    Thank you so much Sal, you are the best.

  24. Kenan Sooklall says:

    one day Sal I'll repay you for all of that knowledge

  25. equn says:

    Title should be the buyer's. The bank just put a mortgage lien on your property.

  26. Christine Weinbrecht says:

    I like the video! what software or program did you use to produce this?

  27. Leopard-King says:

    The sin debt needs to be paid.  Other spiritual traditions call it karma.  We think that we pay for our ill doings, but we are only paying the INTEREST (the fake bill).  God pays the principle and interest.    Sin literally works like a massive loan where you become a slave to accruing interest never touching principle amount.  We live in a sin based world much like we live in a debt based economy.  If you run out of debt the market would crash based on our current model.  Same goes for worldly progress, it runs on sin.  If there was no sin, then the world system crashes.  Jesus overcame that system and crashed that market of sin in the spiritual sense.  He has a new model, a new life, new wealth, and  a new freedom.

    Jesus crashed the market with his payment.  Why? The payment was to be a PERFECT  SINLESS SACRIFICE/PAYMENT. None of us could pay that bill.  Jesus had the profile and the currency, sinless divine blood.    We benefit from that payment.   That is why if you want to pay your own sin debt, you will pay forever in hell because it took an infinite God paid and infinite price.  Christ bares his wounds for all eternity.  You will be in debt bondage for eternity paying interest because sinful flesh and blood is not good enough to pay principle.  Just like you can not pay a credit card debt with another credit card, you can not pay sin debt with sin spotted sincerity.  Accept the payment of the master or pay with our own charred body in hell.  Why burn forever feeding into an endless usury?

    Galatians 5:1
    Stand fast therefore in the liberty wherewith Christ hath made us free, and be not entangled again with the yoke of bondage.

  28. Orlando Mortgage Guy says:

    Very well done!

  29. carlos skenandore says:

    This was really helpful, I'm in college and I'm pretty interested in this. Potential career field for me. Thanks again

  30. Ken C says:

    What device was he using to write on?

  31. Khal Drogo says:

    No wonder banks are so freaking rich…

  32. sino7 says:

    thank you!!!!

  33. Annie Cui says:

    So helpful. Thank you so much!!

  34. Sarah Collins says:

    This is wonderful. Thank you!

  35. Abdoul Rachid Ayouba says:

    i love this guy

  36. HW Keepsie35 says:

    Thanks !

  37. lonwoogmail says:

    wow. it's nice to be a bank.

  38. Евгений Попов says:


  39. Rakibul Eliot says:

    Nice vedio

  40. Cer says:

    Khan, do you have an excel sheet or a way to calculate the exact amount of interest being paid after 30 years of mortgage payments? I would like to find out how much money I will be losing in the long run with a mortgage. I already downloaded your excel sheet here, but wondered if there was a quicker way of finding out the total interest payments in 30 years rather than calculating 360 months. =) if possible…

  41. Enzo Braganza says:

    Came here to try and understand everything about the movie "The Big Short". The terminologies on that movie is sooo overwhelming, not even knowing most of the words being said. First step, I guess.

  42. Wouter Dewet says:

    Can you PLEASE!!! Explain the Helper Variable? That is where the real math lies but alas, it is above my creative brains capacity. I really want to understand how you calculated the monthly payments and interest and all the math there of.

  43. R Feyman says:

    Well this is how it used to work. Now banks call up Wall Street to securitize pretty much all loans. The bank gets a check right away for selling this asset and goes out and makes more loans. Wall Street bundles the loans and sells it off to fund managers who will put it in your retirement accounts if you are lucky enough to have one these days. Wall Street also creates synthetic derivatives and sells that off to fund mangers as well who are all to happy to add that crap, sorry, asset to your retirement account. More Americans should watch movies such as the Big Short to learn what is going on. You can also search youtube and many clips from the movie are available where they explain in non technical terms how the game is played.

  44. Omar Bubteina says:

    Thank you so much for this video!

  45. says:

    Mortgage = French for dead Pledge. (the promise pledge will die once paid off). Interesting word from mortuary and engage.

  46. yeahdude1986 says:

    I calculated at 75k with 25% down @ 5.5% interest rate over 30 years is ALMOST 115k!!!!!!!!!!!!!!!!!!!!!!!!!!!

  47. Ognara Enterprises says:

    very good information.

  48. BANKING SUTRA says:

    Very nice video sir. Your explanation is just awesome.I have also made a video on concept and types of Mortgage in India.
    Kindly watch this one too. Hope you ll like it video link :

  49. James Ambalathunkal says:

    Super helpful.

  50. Anne-Marie Lewis says:

    Very clear explanation

  51. Yeven Hurt says:

    You are the best! Thanks

  52. iMortgage Broker Brisbane says:

    Thanks for the video. Can you PLEASE!!! Explain the Helper Variable?

  53. vanderberg08241988 says:

    Thank you for your efforts in making these videos… I've watched many of you videos and find them very educational. Best!

  54. 163 Reasons Why Real Estate Agents Fail says:

    In my opinion, everyone thinking of buying a home needs to watch this video and understand how the mortgage loan process works. You have provided a great service to the home buying public.

  55. Cacciatore di pappataci says:

    Doesn't inflation also affect an adjustable rate mortgage?

    Let's make an example to make things clear .
    My ARM is initially 4% , but each year inflation increases by 150% .
    So if at year 0 i was paying $2000 of intererest , at year 5 i am still paying $2000 but these $2000 became much less valuable due to inflation .
    The present value of the $2000 at year 5 is 2000/(1+1.5)^5 = $20.5
    So i am basically giving them the present value of $20 instead of the $2000 that i should give to them .

    I know that i'm exageratting a lot since an inflation of 150% each year is very very high but this scenario actually took place many times in history so it's not unlikely to see it happen again.

  56. Tanvir Alam says:

    The bank gets a down payment of $125k and the guy pays his loan of $375K with interest after a certain period then what happens to the down payment?

  57. karen patterson says:

    thanks for sharing, how can i find out how many properties you can own under one ssn in Delaware

  58. wayne warren says:

    This video should have talked about the area under the curve in the graph. It's a wonderful visualization demonstrating how over the course of this particular thirty year mortgage the amount of interest paid is nearly as much as the loan principal.

  59. Allenr661 says:

    Very helpful. Easy to understand. And practical real word knowledge.

  60. Parth Mandalaywala says:

    Your explanation always hits the mark….Good job

  61. mAcroFaze says:

    Khan Academy: Getting me through university in the way of Matrices tutorials, and now getting me through life years and years later in the form of teaching me about housing and mortgage loans. You really are the best! 😀

  62. Val's Whitewolf Media says:

    learned alot more then I knew thanks.

  63. Артём Кусачёв says:

    Very-very well explained!!!

  64. susan chambers says:

    Only if I had access to loan !

  65. krotsin says:

    On one hand you rent a place and you pay to some guy. At the end you're nobody. On the other hand you get a mortgage and pay to your bank all these interests for decades which will eventually cost you the place a double price from initial. However, at the end the place is yours. Also, you don't know what can happen to you during all those 30 year period of paying off mortgage. You can lose a job, get married and divorce, get sick and all other stuff. What if you decide to move? You're stuck with your mortgage.

  66. Gary Greenstein says:

    Great info. Thanks for sharing.

  67. Cristian Radu says:

    Nice video. Here in Romania the property title goes to you and you guarantee that you pay back the money with that house. I think it's better this way.

  68. Fiftys Lady says:

    Thanks! Super helpful. Also am really shocked at how much banks make on interest every month. That's so sad

  69. Aiden Ray says:

    If the house was bought at 500k$ and John will eventually pay for it 600k$ (because of mortgage interest) but he sells the house with an equity of 200k$ to Rob for 700k$, would John make a profit of 500k$? What happens to the interest of the mortgage that John pledged to pay to the bank?
    Another question – if the market is down and the house can't be sold for a profit and John decides to cancel the mortgage with an equity of 200k$, would he get all his 200k$ back and the only loss will be the interest payments that were made up to that point?

  70. Rxmbo says:

    It’s called a dead loan because you’ll pay it off untill you die .

  71. OperTM1274 says:

    In the example presented in the video above .. just come up with another $375,000 more and you own the house with no interest payments. But, you'll still have to pay the property taxes every year for the rest of your life. Or you can not buy a house and pay ever increasing rent for as long you live. Bottom line is that it cost money in one way or another for a place to live.

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