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Currently the Amortization Schedule Calculator is the most popular financial calculator on this website. It calculates one of four unknowns or you can provide all the values. You are also in control of the loan and first payment dates. More below...»

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Enter a "0" (zero) for one unknown value above.
No/Yr Date Payment Interest Principal Balance
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$ : mm/dd/yyyy
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Related: Need to amortize a really big debt? US National Debt Calculator handles debts to $99 trillion. Amortize entire debt or your family's share of the debt (surprise!). Also, generic use for bond coupon schedules.

Important Note About Dates: This calculator allows irregular length first periods. That is, the calculator calculates the exact amount of interest due even when the initial period is shorter or longer than the other scheduled periods. This will produce interest charges that do not match other calculators. If you want to match other calculators then set the "Loan Date" and "1st Payment Date" so that they equal one full period as set in "Payment Frequency". Example: If the "Loan Date" is May 15th and the "Payment Frequency" is "Monthly", then the "1st Payment Date" should be set to June 15th, that is IF you want a conventional interest calculation. See the end of the "Help" text for some more details.

What is amortization? According to, "amortization means a debt is being paid off by a series of payments". When people search for an amortization calculator, they search for it using many different search phrases. If you are searching for any of these financial calculators, this calculator should meet your needs. If it doesn't, feel free to tell me what you need in the comment area below and there is a good chance I'll be able to make a recommendation.

Related: Don't over pay, don't under collect. If you need to track payments on the exact date they are paid (or missed) for whatever amount, then use the loan payoff calculator. For a step-by-step example see the payoff calculation tutorial.

This website has dozens of financial calculators that create various amortization schedules, payment schedules, withdrawal schedules and general cash flow schedules. This is a complete list of our free, online calculators. Feel free to surf!

Need More Features?

The loan calculator, mortgage calculator and
auto loan calculator have all recently been updated.

  • Supports setting dates - just like this calculator
  • User controls when and how odd day interest is due
  • Do "what-if" with extra payments
  • User can select last month for year end totals

571 thoughts on “amortization-schedule

  1. Hey Karl,

    Your services are being requested. My name is William, I’m a local real estate wholesaler in Cincinnati, Ohio. Recently, I’ve been buying homes “subject to” financing (owner financing, seller financing) and reselling the properties on land contracts (seller financed). I collect a non-refundable down payment, I collect monthly payments, and I amortize the balance over 30 years with interest. I would like to print an amortized payment schedule for my buyers.

    I like the amortization schedule cause it allow me to set the date back to when I initially originated the loan with my client. However, the problem I’m having is when I hit calculate I’m having negative numbers in schedule and on the last page of the schedule.

    I would like to request several things so I can learn and resolve these issues. 1.) Email me at so I can send you a screen shot of exactly what I’m referring to. Then, have you reply on this site. 2.) Do you have Youtube tutorials that visibility illustrate how to use everything on this site? If so, what’s your youtube channel? If not, please strongly consider making a youtube channel. 3.) Do you have a paypal or gofundme account, so I can contribute a small token of appreciation for your time?

    HouseMan Willie

    • Hi Willie,

      The email address can be found on this contact page. You’ll have to scroll down a bit. I won’t put the address here because screen scrappers will just add it to spam lists.

      Numbers will go negative when the payment does not cover the interest. One scenario when this will happen is when the time between the origination date and the first payment is longer then the regular expected periods. Such as origination date Jan 2 and first payment date Mar 21 when the normal payment period id monthly. This results in a lot of accrued interest, i.e. more than might be covered by the regular payment amount that is due on Mar. 21.

      You can send me a screen shot, but if you see that’s what’s happening, then you should be using this calculator to create an amortization schedule because under that calculator’s "Settings", you’ll find an option for "Interest" and how interest long periods are handled. Scroll down the page for a list of tutorials. I think #25 might be of particular interest to you.

      No, no YouTube channel at this time. I hope to get a few videos created this year. We’ll see.

      And regarding #3, thank you, that’s very generous, but not necessary (and I don’t have those accounts). I would much prefer that if you are happy with the site that you pass on links to your friends and associates. Or if you have a website that you can use to link back to this site as a free resource, that would really be great.

  2. What does “25 month amortization” mean

    • Where are you seeing that text? Are you asking about something you see on this calculator’s page, or are you asking about something you’ve read unrelated to this calculator and you want an explanation?

  3. I saw it as term on a proposal, wondered what it meant in the context of a 10 year contract. That’s what lead me to your page.

    • Ok, understood. I think it simply means the loan is amortized (paid off) in 25 months. It’s another way to state the term of the loan.

    • So, for a 10-year contract with monthly payments, one would say " 120-month amortization."

      • Thank-you. I was thinking that the amortization schedule for a 10-year loan would be 120 months. I didn’t understand where the 25 month amortization related to the 10-year. So it is either a typo or a different term

  4. I like your program but I haven’t found a way to print lines on the schedule. Can the program be set up to print lines on the schedule like an excel spreadsheet?

    • I’m glad to hear you like the calculator. There is not an option for printing lines on the report. However, there is a work around, if you want to try it. From the "Print Preview" window, select the entire report and then copy/paste it into Excel. Once you do that, you can change the formatting and add the lines as you desired. Then you can use Excel to print. If you do that, you’ll only have to do it once. Save the workbook, and then going forward, paste the results from the print preview to the saved workbook and the formatting should remain in tact.

      Depending on your browser, you may have to use Excel’s "Paste Special" feature.

  5. Hello,

    Great site! I’m trying to set up a loan for 350,000 at 12% for a 5 year term starting May 1 with interest only the first year. Not quite sure how to come up wit that schedule. Thanks!

    • Thanks Shannon. Much appreciated.

      For what you want to do, you’ll need to use this

      financial calculator

      Scroll down the page and see tutorial #1 to get a quick overview of how the calculator works and then look at this tutorial for your specific use case:

      14 Interest Only Loan
         Initial series of interest only payments

      If you have any questions once you’ve check out the calculator, just ask.

  6. worthless
    I can’t print the damn thing. Even screen shot doesn’t help.

    • How did you try to print? Did you click on the "Print Preview" button and then the "Print" button in either the upper left corner of the preview window or at the end of the amortization schedule?

      If you did that, and it doesn’t print, please tell me what browser and version you are using. And if you are on Windows or what operating system.

  7. I’m using Firefox. I don’t see a print preview button. Here’s the page I was looking at. If I can print it, I take back my ill tempered remark. I thought I had to pay $69 to get a printable version. THis is a one time thing for me.

    • Nope, no need to pay $69 or anything.

      And no problem with FireFox.

      Presumably, you saw the "Calc" button? In that row, go 2 buttons to the right for "Print Preview."

      By the way, the "Print Preview&quot button also calculates the schedule, so no need to click on the "Calc" button too.

  8. These guys ROCK! I had troubles using this program, but Karl was great, helped me through it, and it worked like a champ! I was making a stupid mistake, missing something that was right in front of me!


  9. Hello, I’m trying to figure out a schedule for one of my clients and they got behind on some of their payments (and some they paid more but are still about 11k behind). So I am wondering if there was an option to enter in what they paid so I can show them on the schedule what I owed on the balance?

    This would help out a great deal if I could personally enter in some of their payments in order to do show their personal schedule to them.

    Thank you so much for your time in this matter.


    • Correction:
      **What they owe on the balance.

      • They started on a 175,000 note with 11,000 down and me financing the rest over a 15 year term at 7% interest. I charge $50 late fee if not paid by the due date (I didn’t see a late fee column as well). Just trying to figure this out, thank you again for all your help in this matter.


        • Sorry just trying to give all information you may need:

          They started Aug. 11 2016, with their first monthly payment starting Oct. 1 2016.


          • Hi Adam, you can do what you want, but just not with this calculator.

            Please use the Ultimate Financial Calculator. That calculator is designed to allow the user to put in each payment as it is made. The user can also put in a series of payments if some of them were regular, i.e. paid on the date due.

            If you try it, scroll down the page to the tutorials. Everyone should review tutorial #1. Then tutorial #25 addresses your specific needs:

              25. Calculate Loan Balance — Loan Payoff Calculation
                  Enter payments for any amount on date made — audit balance due
  10. Hi,
    Could it be that this site has changed?
    I am trying to calculate an amortization schedule showing straight line amortization, not one which shifts around. I expect to see that the principal portion of the payment will increase steadily, and the interest portion will decrease steadily. I have been able to generate this in the past, but perhaps I am not following the same settings or something. Can you please help me?

    loan $48,000
    interest rate 9.5%
    15-year, 180 month term
    $512 monthly payment

    Thank you

    • Hi Janice, this calculator has not had any changes in over a year. You should see an increasing amount being allocated to the principal with each payment made.

      There are conditions, however, when this does not happen. If the compounding is set to continuous, daily or exact, some payment will have less applied to principal than the immediately preceding payment due to the difference in the number of days in the month.

      Or if the first period is a longer or shorter period than the following regular length periods, the principal will change.

      If this does not answer your question, then I need to see your schedule to understand the specifics.

      • Karl,
        This answers my questions perfectly. Thank you for your complete and speedy reply. I changed my specs to “monthly” compounding, and all is as I had expected — straight line amortization (if this is what it is known as.)


        • Great. Thanks for letting me know. And regarding, "straight line amortization", you may have just coined a phrase there. 🙂

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