Skip to content
Canajun Finances Home » Effective Interest Rate of Service Charges

Effective Interest Rate of Service Charges

Bank Fees as Simple Interest

What if banks had to tell you their service charges as an interest rate?

Bank Fees are clearly displayed as a dollar value. As an example $15.00 for our Extra Special Banking Service. However, what if we do a little simple arithmetic? Michael James could do the more interesting compound interest version of this equation.

Assume that you hold a balance of about $500 in your chequing account over a year and that you receive no interest on your balance. You do, however, get charged $12.95 a month for the Extra Special Banking Service offered by Leech Banks.

EQ Bank Savings Account
No Bank Fees here though

Let’s wander through the calculations:

  • If you pay $12.95 monthly in service fees (excluding other fees for cheque printing, non-bank ATM withdrawals, etc.), that adds up to $155.40 in service charges in a year.
  • Assuming we keep the balance in our chequing account at $500.00
  • If you use a simple interest model (compounded once a year), you then have paid a 31.08% simple interest charge for this service.

Think about the number you just saw. You lost over 31% of your principal due to your bank withdrawing service charges. This value would be higher if you had a monthly compounding period (I think). Suppose you carried more money in your account. In that case, this might be a lower rate (in my bank, if I hold over $5000 in my chequing account, I don’t pay at all). Still, if you kept a lower principal, the rate would even be more astronomical (if you held a balance of less than $200, it would be closer to a 100% simple interest charge).

Would you use a bank that gave you -31% interest on your chequing account? Would you go anywhere near a bank that advertised that service?

What to do about service charges?

The easiest thing to do is find a bank that charges no Service Charges.

  • Most major banks will charge no fees if you carry a minimum balance of $5000 in your account. I don’t like this solution, but it does work.
  • Find an online bank like EQ Bank (a sponsor) that charges no fees. PC Financial and Simplii also have no service charges. Many Credit unions offer no fees. Don’t be afraid to change your bank.
  • Be a Senior Citizen. Most banks offer zero-fee accounts to Seniors. Seems a bit drastic, but it works as well.


This is a rework of an article I wrote back in 2009.

Feel Free to Comment

  1. It’s time to go find a free chequing account. If you’re actually getting something for your $12.95 per month, then it’s not fair to treat it like interest, but if you’re getting the same thing that’s available with free chequing accounts, then it’s fair to call it interest of a sort. Weird things happen when compounding negative rates — they actually become a little less negative (-27% in this case).

  2. Interesting idea, that a bank account can charge the same rate as a credit card. Too bad we don’t live in a society where the banks are grateful to the people who provide them capital.

  3. Luckily my husband is a big five bank employee so we get free banking, lower mortgage rates (3.55 fixed 5 year) and brokerage fees applicable to people with high brokerage account balances (9.95 per trade).

    If he wasn’t working there, I would use the bank I used before I married him – PC Financial…they have an unlimited chequng account with no monthly fee – – unlimited debit card uses, unlimited cheques etc. Before I met him, when I was with PCF, I never paid any fees because I always used PC or CIBC atms. The only way you’d pay fees with them is if you used some other atm or if you needed a special request like a bank draft. So for everyday banking, why would anyone bother pay fees to be at some other bank for their chequing account? It makes no sense.

    I still maintain my PCF chequing account and put money into it so that I can use the debit card at real canadian superstore and no frills and thus get PC points which equate to a dollar value.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Verified by MonsterInsights