Yesterday I showed how the simple PMT() function in Excel can be used to estimate your periodic mortgage payments, if you have all the pertinent information. Today we can use that information to build a schedule to show your mortgage payments and how they change your Mortgage Principle over time.
First a clarification, as was pointed out by one of my commenters, the PMT() function gives you the wrong periodic payment, due to Canadian Mortgages having their interest compounded semi-annually (twice a year) whereas in the U.S. it is compounded annually. The fix for this is to change the first entry in your PMT function from:
I like a Mortgage Schedule Table, just because it gives you the ability to understand where you stand in terms of paying off your loans.
Each row of the table will show a payment, how it breaks down in terms of interest and principle payment and how much principle remains after each payment (sounds simple doesn’t it, well it is):
Let’s try this example and show some of the sheet. Assume a $100,000 Mortgage, with an interest rate of 5.95% compounded semi-annually, with a 25 year pay back with monthly payments. We use the PMT() function to find out that our monthly payment will be $636.84.
The sheet will be laid out in the following way:
| Mortgage Schedule | |||||
| Mortgage Amount | $100,000.00 | Interest | 5.950% | ||
| Monthly Payment | $636.84 | Years | 25 | ||
| Periods/Year | 12 | ||||
| Term | 300 | ||||
| Start | 01-Jun-08 | ||||
| ========================================================================== | |||||
| Date | Payment | Interest | Principal | Balance | Total Interest |
| 01-Jun-08 | $0.00 | $100,000.00 | $0.00 | ||
| 1-Jul-08 | $636.84 | $489.80 | $147.04 | $99,852.96 | $489.80 |
Simple isn’t it?
You just keep going line by line for 25 * 12 times for all the payments and you will see the loan drop to zero. Hopefully tomorrow I will have a link to the example worksheets I set up, for both US and Canadian Mortgages.
More interesting versions of this is if you add an OVERPAYMENT column and then start seeing what happens when you add extra payments early on and how much faster your mortgage gets paid off!
My major tool in my Financial Planning activities is my computer. I use it to track my spending, I use it to make up financial plans for the coming time, and I use it to analyze my spending habits, all in all a very powerful tool for me.
My wife prefers to use pen and paper because she likes to see the spending and such, and if that is the way you work, I have no problem with that either. It takes a little longer, but maybe when it takes longer you might notice and absorb more information from the data entry side of things.
My major tools that I use (I am not endorsing these computer tools, I am simply pointing this out to be complete) are:
These tools make Personal Finance for me a little easier to deal with.
As with all tools, you must maintain your PC. Yesterday my PC was taken away, because it was doing suspicious “Virusy” things at work and now I sit at my kids’ computer attempting to get anything done. I am lucky because I have an entire I.T. group to take care of my PC (for now), most folks do not, so here is my views on the minimal I.T. tasks you should be performing on your PC (this advice I do actually stand behind, because this is an area I think I have some expertise):
There are many other tricks of the trade you should think about, but this is my minimum list. If anyone else cares to comment on other important tasks, please feel free, as I don’t think this list is exhaustive, just a good starting point.
If you are carrying debt with a bank, you were just given a gift (a huge gift if you live in the U.S.), because the banks have lowered their interest rates yet again on loans. What will you do? Will you simply lower your monthly payment to match what the banks ask you and use the extra money elsewhere, or will you exert financial intelligence on this debt and attempt to pay it off faster?
I propose a very pedagogical example for your reading pleasure.
If you were say a Financial blogger and you had say, $13000 on your line of credit with your banking institution, your pay off schedule for that debt might look like this:
| Loan | $13,000.00 | Interest | 6.500% | ||
| Monthly Payment | $398.44 | Term of Loan | 36 Payments | ||
| Date | Payment | Interest | Principal | Balance | Total Interest Paid |
| 01-Jan-08 | $13,000.00 | $13,000.00 | $0.00 | ||
| 1-Feb-08 | $398.44 | $70.42 | $328.02 | $12,671.98 | $70.42 |
| 1-Mar-08 | $398.44 | $68.64 | $329.80 | $12,342.18 | $139.06 |
| 1-Apr-08 | $398.44 | $66.85 | $331.58 | $12,010.60 | $205.91 |
| etc.,etc., | |||||
| 1-Nov-10 | $398.44 | $6.41 | $392.03 | $790.45 | $1,337.31 |
| 1-Dec-10 | $398.44 | $4.28 | $394.16 | $396.29 | $1,341.59 |
Great easy to understand and see, but wait, the bank just dropped my interest by 1/4 %!!!
Well how would that look then if I was only paying 6.25%?
| Loan | $13,000.00 | Interest | 6.250% | ||
| Monthly Payment | $396.96 | Term of Loan | 36 Pay’ts | ||
| Date | Payment | Interest | Principal | Balance | Total Interest Paid |
| 01-Jan-08 | $13,000.00 | $13,000.00 | $0.00 | ||
| 1-Feb-08 | $396.96 | $67.71 | $329.25 | $12,670.75 | $67.71 |
| 1-Mar-08 | $396.96 | $65.99 | $330.97 | $12,339.78 | $133.70 |
| 1-Apr-08 | $396.96 | $64.27 | $332.69 | $12,007.09 | $197.97 |
| etc.,etc., | |||||
| 1-Nov-10 | $396.96 | $6.14 | $390.82 | $787.76 | $1,284.38 |
| 1-Dec-10 | $396.96 | $4.10 | $392.86 | $394.29 | $1,288.48 |
That’s kind of cool, I have saved $60 in interest over the length of the 3 year loan, that is nice.
The twist would be continuing to make the payment I would have made at 6.5%?
| Loan | $13,000.00 | Interest | 6.250% | ||
| Monthly Payment | $398.44 | Term of Loan | 36 Pay’ts | ||
| Date | Payment | Interest | Principal | Balance | Total Interest Paid |
| 01-Jan-08 | $13,000.00 | $13,000.00 | $0.00 | ||
| 1-Feb-08 | $398.44 | $67.71 | $330.73 | $12,669.27 | $67.71 |
| 1-Mar-08 | $398.44 | $65.99 | $332.45 | $12,336.81 | $133.69 |
| 1-Apr-08 | $398.44 | $64.25 | $334.19 | $12,002.63 | $197.95 |
| etc.,etc., | |||||
| 1-Nov-10 | $398.44 | $5.86 | $392.58 | $732.84 | $1,279.80 |
| 1-Dec-10 | $398.44 | $3.82 | $394.62 | $338.22 | $1,283.62 |
So what, I hear you say? Well I have saved about $5 in interest payments and my final principal payment is about $46 cheaper, so what? Um, that isn’t a good thing, you kept you spent $53.48 and you saved over $60 (or so) over 3 years, but you are paying ths debt down faster! If you had put that money in a bank account, would you have got that kind of payback?
Don’t just play with the cards dealt you, if you have budgeted to pay off a loan with a specific payment amount and interest rates drop, then keep up the original payment amount, you will speed up your Debt Pay down!