How to track your expenses

Why tracking rarely survives into a second month

The usual story goes like this: the first week everything is written down to the penny, the second week every other day, and by the third the sheet is empty. The reason is almost always the same — the daily cost is higher than the benefit. Twenty entries a day in a spreadsheet are twenty small decisions, and every one of them can be put off.

So the question “how do I track my expenses” is really a different one: how cheap can you make it in daily effort, so that it survives a bad week. Precision paid for with effort almost always loses to a rough figure that holds for months.

Three ways, and what they cost in time

• Record by hand — a spreadsheet or an app. The most accurate and the most expensive: roughly 3–5 minutes a day. It makes sense for the first two or three months, while you still do not know your own habits.
• Go through a statement once a week. You write nothing down day to day, and once a week you import the statement from your bank and sort the transactions into categories. Roughly 15 minutes a week, and the card forgets nothing on your behalf.
• Combine the two: card spending from the statement, cash and odds and ends by hand. In practice this is the most durable option, because the manual work left over is exactly what the bank cannot see.

What to record and what to skip

You need as many categories as you are prepared to make decisions about. “Groceries” is a useful category, because you can act on it. “The supermarket on the corner” is not — that is a place, not a decision. If a category never changes your behaviour, it only makes the report longer.

Start with seven or eight: housing, groceries, transport, cafés, health, subscriptions, clothes, other. If “other” has swollen after a month, split that one — not the rest.

How to make the habit invisible

1. 1Attach the entry to something you already do: you paid, so you write it down while you are putting the card away. Not “I will remember this evening” — you will not.
2. 2Cut the action itself down to a few seconds. In FinLad an expense can be written as one line — “coffee 85” — and the app works out the amount, the date and the category itself; or photograph the receipt, and the fields fill in from the photo.
3. 3Once a week, spend fifteen minutes reviewing rather than entering. This is where tracking starts to pay back: you can see where the money went, and how much of that you never noticed.
4. 4Do not catch up on what you missed. A week without entries is simply a week without entries; trying to reconstruct it from memory is the most common reason people quit for good.

Irregular costs — what breaks every budget

A month adds up right up until insurance, a car service, winter boots or a dentist turns up in it. These are not monthly, so nobody puts them in the budget — and every time they look like bad luck, even though they happen every year for roughly the same amount.

The cure is arithmetic, not discipline. Write down everything that happens once a year or once every few years: insurance, servicing, presents, a holiday, replacing appliances, medical bills. Add up the yearly total and divide by twelve — that is the amount your monthly budget is short every single month. In most households it comes to between ten and twenty per cent of everything they spend.

From there you have two routes. The simpler one: keep that amount aside — in a separate account, or simply as its own category — and draw on it when the time comes. The harder but more honest one: put it into the monthly limit as an ordinary expense, so that December does not look like a catastrophe next to November. In FinLad that is a separate account or a goal, and in the statistics those costs stay visible apart from the day-to-day ones.

Cash — the one thing a statement will not record for you

• The cheapest option: do not itemise it at all. You withdrew a thousand, you record one expense called “cash”. You lose the breakdown inside that thousand, but you keep the habit, and the overall picture stays true.
• The middle option: record only purchases above some threshold — say two hundred. Small change goes into “cash” as a single sum at the end of the week. That way you see the large cash spending and stop fighting every bus fare.
• If cash is more than a third of everything you spend, the reverse move works better: do not improve your cash tracking, reduce the cash. Move what can be moved onto a card and half the problem disappears along with the entries.
• What is not worth doing is reconciling cash down to the penny. That is precision paid for with effort again, and it is usually where tracking stops.

How to tell whether it is working

• You can name your three largest categories without opening the app. If you cannot, you are recording but not looking — the most common way to waste the effort entirely.
• At the end of the month no figure surprises you. Surprise means you spent the month blind and found out afterwards, which is precisely the job tracking was supposed to take away.
• You have made at least one decision because of what you recorded: cancelled a subscription, changed shops, postponed a purchase. Tracking that changed no decision is a diary, not a tool.
• And one sign in the negative: if you missed a week and came back without trying to “catch up”, the habit is solid. It is the attempt to reconstruct a missed week from memory that finishes people off.