How Much Could Reviewing Your Spending Actually Save You?

“How much would I actually save?” is a fair thing to ask before spending an afternoon on your bank statements. It is also the question the personal finance world answers worst, usually with an average that was never about you in the first place.

The honest answer is that nobody can tell you until they look at your accounts. What anyone can tell you is where the money usually hides, what each of those things costs at published rates, and how to add up your own figure. That is really what a financial health check is: not a guess at your number, a method for finding it. Here is the method, and the arithmetic underneath it.

Why nobody can quote you a number in advance

Any tool that promises “the average user saves $400 a year” is telling you about a group of people you may have nothing in common with. The savings available to you depend on four things that vary enormously: how many recurring charges you are carrying, whether you carry a credit card balance, what your bank charges you for ordinary banking, and how many years it has been since anyone repriced your phone and insurance plans.

Two people with the same income and the same rent can be hundreds of dollars a month apart on those four alone. One of them pays no account fee and clears the card every month. The other is on a legacy plan, pays interest, and has six subscriptions running. An average is the wrong instrument for a gap that wide.

The arithmetic that changes the answer

Everything on a bank statement is a monthly number, and every decision about it is an annual one. That mismatch is the single reason people underestimate what a review is worth.

A $14.99 charge is $179.88 a year. A $4 monthly account fee is $48. Under the Canadian rules that applied before March 2026, one bounced payment a month at a typical $45 to $48 came to more than $540 a year, which is the kind of figure that changes what you do about it. Nobody would sign a $540 agreement without reading it. Plenty of people have paid one without noticing, because it arrived in twelve pieces.

So before you start: whatever you find, multiply it by twelve. That is the real size of the decision in front of you.

The five places the money usually is

When people lay three months of transactions side by side, the same five categories account for almost everything worth recovering.

1. Fees you receive nothing at all for

This is the purest category, because there is no argument to be had about value. You paid, and you got nothing.

Canada changed here recently, and it is worth knowing. As of March 12, 2026, federally regulated banks cannot charge more than $10 in non sufficient funds fees on a personal deposit account, cannot charge it more than once in two business days on the same account, and cannot charge it at all when the shortfall is under $10. The Financial Consumer Agency of Canada notes that before those rules came into force, NSF fees typically ran between $45 and $48, and the Minister of Finance put the reach of them plainly: more than one in three Canadians are affected by these fees.

Account fees are the same story. Since December 1, 2025, fourteen federally regulated institutions including Canada’s six largest banks have committed to low cost and no cost accounts costing no more than $4 a month. If you are paying triple that for a basic chequing account, that is a phone call rather than a fact of life.

In the United States the equivalent quiet drain is cash machines. Bankrate’s 2025 Checking Account and ATM Fee Study puts the average cost of a withdrawal at a machine outside your own bank’s network at $4.86, made up of $3.22 to the machine’s operator and $1.64 to your own bank. Twice a week is more than $500 a year for the convenience of the nearest machine.

2. Interest that never looks like spending

Interest is the most expensive line most people have and the least likely to be counted, because it never appears as a purchase. Cash advances are where it gets genuinely costly. The FCAC is direct about it: there is no interest free grace period on a cash advance, so interest runs from the day you take the money, and the rate is usually higher than the purchase rate. Its own illustration is 19% on purchases and 22% on cash advances, and a fee applies on top of that each time.

The part that catches people is what counts as a cash advance. The FCAC lists cash like transactions that are treated the same way even though no cash changes hands: wire transfers, money orders, travellers’ cheques, and gaming transactions such as buying lottery tickets. Balance transfers behave similarly, and carry their own fee. The FCAC’s example is a 3% fee on a $1,000 transfer, so $30, with interest still applying to the transferred balance.

3. Money lost in the currency conversion

When you pay in a currency other than your own, your card applies an exchange rate and then a conversion charge on top. The FCAC’s worked example uses a conversion rate of 2.5%: a €1,000 purchase converted at 1.45 becomes $1,450, and the conversion charge adds $36.25 to it.

The surprise is that you do not have to be travelling. An online order or a subscription billed in another currency triggers the same charge from your living room, every single month, which is why software and streaming services priced in US dollars are such a common source of it. While you are looking, check for merchant surcharges too. Outside Quebec, a merchant may add up to 2.4% for paying by credit card, and must disclose it before you approve the payment.

4. Subscriptions that are still running

This is the category everyone expects, and it earns its place anyway. Charges in the $5 to $30 range are priced precisely to sit below the level where you would question them, and they are scattered across cards and app stores so no single statement ever shows the total. Our guide to the subscriptions people forget they are paying for covers how to hunt them down, including the two places your bank statement cannot see.

One less obvious cousin lives here: the FCAC notes that some financial institutions charge an inactive account fee on a credit card you have not used in a long time, and may close the account. The card you keep “just in case” is worth a look for exactly that reason.

5. Plans sized for a life you no longer have

Phone data you never come close to using. Insurance still written for a car you sold. Cloud storage a tier above what you need. A gym membership from a year when you lived closer to it.

Nothing here is waste in principle, which is exactly why it survives every review. These are legitimate expenses at the wrong size, and they tend to hold the single largest recoverable amount on the whole statement. A fifteen minute call about a phone plan pays you every month afterwards and asks nothing of you again, which beats almost anything you can do to your daily spending.

How to run the financial checkup yourself

You do not need a budget for this. A budget is a plan for money you have not spent yet. This is a look at money that already left, which is a smaller job and a much faster one.

• Pull three months from everywhere. Chequing, savings, every credit card, every payment app. One month hides the annual and quarterly charges, and those are the ones with the biggest amounts attached.
• Sort by merchant, not by date. This is the entire trick. Date order hides repetition. Merchant order makes it obvious: anything appearing three times for a similar amount is recurring, even when the amount drifts.
• Use three columns, not one. Fees and interest in the first, recurring charges in the second, plans and memberships in the third. The three behave differently and are fixed in different ways, and mixing them is why the exercise usually stalls.
• Multiply every column by twelve. Monthly numbers are what you feel. Annual numbers are what you decide on.
• Count only what you will actually change this week. A total built from things you intend to get around to is a fantasy total, and it is the reason these exercises end in disappointment rather than money.

Then ask one question of every line you flagged: if this charge appeared today for the first time, would I sign up for it? Not whether it is good value in theory. Not whether you might use it again some day. Would you buy it today. Everything where the answer is no belongs in your total.

What a realistic answer looks like

The honest range is wide, but the shape is predictable, and knowing the shape tells you where to spend your half hour.

• Fees and interest usually have the fewest lines and the least defensible ones. This column is small in count and often the fastest to fix, because a single phone call or a switched account settles it permanently.
• Recurring charges have the most lines at middling amounts. This is where the satisfying wins live, and where spending leaks quietly add up to something that surprises people once it is on one page.
• Plans and memberships have the fewest lines and the largest amounts. This column takes the most effort per item and usually pays the most, and it is the one people skip.

And if your three columns add up to almost nothing? That is a real answer too, and a genuinely good one. Knowing that there is nothing quietly leaving your account is worth the half hour, because it moves the question somewhere more useful: not what to cut, but what to do next with what you have.

The number is not really the point

What you recover once, you can recover again in six months, because charges rebuild and plans drift. The lasting value is not the total you find this weekend. It is knowing what your money is actually doing, and having a way to check it that does not depend on you remembering to track anything.

That fuller picture is what a financial health score is for. Not a verdict on your character, just a plain read on how your money behaves: what comes in, what goes out, what repeats, and what to change first. Fees and forgotten charges are among the first things it surfaces, because they are the most fixable things on the list.

See what your own statements say

Sorting three months of transactions by merchant across four accounts, then separating fees from subscriptions from plans, is exactly the sort of task people fully intend to do and never quite start. That is fair. It is also why the charges keep running, and it is why we built Finally.

Upload your statements and Finally does the sorting. It is a free financial health check: every recurring charge in one list, the fees and interest you are paying for nothing, and a short list of the changes that would make the biggest difference to your month. No manual tracking, no spreadsheet, no lecture about coffee. Just a clear look at what your money is doing, so the number you act on is your own.