Sinking funds: the budget hole no one talks about

The situation that repeats every year

January brings the renewal notice for the homeowner's policy. In March, the car needs new tires and a service before the snow finally clears. Property tax arrives in April, right alongside the federal filing. Two close friends were born in June and July, and a card is not going to cut it. The professional licensing fee comes due in August. The summer trip you were sort of saving for ends up funded from whatever happens to be in checking. By November the auto insurance renews again, and December lands with the winter holidays.

Every time, the thought is roughly the same — «not again, of bad timing». And yet the auto policy renews every November. Friends were born on the days they were born. The state did not invent the tax bill last week; it has been on the calendar since the previous year. Winter tires do not fall from the sky. The license renews not «suddenly» but exactly a year after the last renewal.

Write all of this down in a single column and what comes out is a calendar you already know by heart. And still, each of these payments takes money that seemed to be there a moment ago, and leaves the impression that the budget has, once again, failed to hold. Budgeting and discipline have very little to do with it. These costs live on a different timescale than the one most of us use to look at money.

Why a thirty-day horizon is too short

Most people think about money in monthly terms. This is not arbitrary. Paychecks land monthly, rent is paid monthly, the core subscriptions bill monthly, utilities arrive monthly. The natural unit of the budget snaps to that rhythm: count what came in, subtract the recurring lines, see what is left to live on.

Inside that horizon, most things behave reasonably well. If groceries cost roughly the same each month, the pattern is visible and easy to plan around. Transportation, the same. A monthly budget is a good instrument for anything that repeats every thirty days.

The trouble is that a substantial part of life does not repeat every thirty days. Insurance repeats every twelve months. Birthdays happen twelve times a year — but each in its own month, and in that month the spending is no longer «normal» but a noticeable bump on top of it. Taxes come once a year. Phones get replaced every three or four. These costs live on an annual horizon, and the budget looks at them through a thirty-day window — and through that window they look like one-off violations of the norm.

So every time one of these costs arrives, it feels sudden. Even though it was not — the tool we use to look at money simply does not show it. This is a structural problem of how we plan, not a failure of willpower. You can promise yourself, over and over, to be more organized; inside a monthly budget, annual costs will still land like hits.

Why «one big emergency fund» is not the answer

The most common objection at this point sounds like this: «I already have an emergency fund, that's exactly what it's for». And on paper, an emergency fund does cover any unexpected expense. In practice, an emergency fund sitting in a single account has a catch: it stops being an emergency fund.

When one account holds a sum from which you can simultaneously «pull out if disaster strikes», «pull out for November's insurance», «take a little for a birthday gift», «spend on new tires» — that sum has no clear purpose. Each of those withdrawals looks justified: the policy is due, the birthday only comes once a year, the tires really are needed. And each of them eats into the money that was meant to be there for the moment something actually breaks.

By the end of the year the fund is empty, or visibly thinner, and it is not clear where it went. Not on a «catastrophe» — on a dozen ordinary things, each of which was known well in advance. And when the real unexpected does come — a sudden repair, a job loss, a serious medical bill — it has to be met without the buffer. An emergency fund only works when planned things are not pulled from it. For planned things not to be pulled from it, planned things need their own source.

The idea — a separate fund for every known expense

The solution is simple, and almost dull: for each known irregular expense, set up its own fund. Not a line in a spreadsheet, not a row in a budget — a separate account, with its own name, target amount and date. Insurance — one fund. Vacation — another. A close friend's birthday — a third. New tires — a fourth. Taxes — a fifth.

Each fund has three simple parameters: what it is for, how much is needed, and by which month. From those three a fourth follows — the monthly contribution: the target amount divided by the number of months left. These contributions add up, and the total tells you exactly how much of every paycheck is already committed before you have even walked into a store.

From the outside, ten funds look more frightening than one emergency cushion. In practice, the reverse is true. One cushion smears the information together: it is impossible to say which portion belongs to which event. Ten funds make the information visible: you see exactly the amount put aside for vacation, exactly the amount put aside for insurance, and they do not get confused with each other. When the insurance bill arrives, you are not «dipping into the emergency fund» — you spend the money saved precisely for it. The emergency fund stays where it should: ready for the genuine emergencies it was built for.

This approach only works inside a tool where goals exist as separate accounts with names, not as rows in a shared table. On paper, the «one fund per expense» method falls apart fast: within two months it becomes impossible to keep in your head which slice of the remaining balance is promised to which event.

Where to start — a half-hour exercise

You need to sit down once and walk through the dull but decisive part. Half an hour in the evening is enough. Open your calendar and the transaction history of your main account for the last twelve months. A full twelve, not «normal» ones, so that seasonal payments, gift-heavy months and the trip all end up in scope.

Then write down everything that stuck out from the ordinary monthly flow. Not «lunch at work», not «cab fares» — the larger one-off items: insurance, gifts above the usual size, a repair, a trip, an annual subscription, a license, a tech replacement, a medical visit whose bill was noticeably higher than usual. Some of these you will remember on your own; others will only surface when you scroll through the statements. Write down more rather than less — it is easier to drop a line later than to track it down.

When the list is collected, mark each item with an approximate amount and the month it happened. Then group them: what repeats every year, what comes around every few years, what floats in date but consistently returns. For anything yearly, divide the amount by twelve — that is the monthly contribution to its fund. For anything every few years, divide by the number of months until the next replacement.

The final step is to add the contributions up. The number is usually unpleasantly surprising: a few hundred a month, it turns out, is effectively not yours — it is already promised to the calendar. That is the useful shock: the money exists, and part of it is already spoken for, and until now you simply had no way of seeing it.

You can keep this table anywhere — in a notebook, in a plain spreadsheet, in our app. What matters is that each fund stands on its own — with its own name, amount and date — rather than living inside a single «irregular expenses» line.

What people usually miss — a list by pattern

If you try to assemble this list on your own, it is easy to skip whole layers of spending — especially the things that come around only every few years; they are too rare to hold in mind. It is easier to sort expenses not by life category («car», «house», «health») but by how they repeat in time. Six durable patterns cover almost everything that falls outside a monthly budget.

Once a year, on a fixed month

The most predictable group. The date can be set in advance and the amount estimated from last year's bill.

• Insurance: auto, home, health, travel
• Subscriptions and software paid yearly up front
• Professional dues, licensing fees, certification renewals
• Taxes, where they arrive as an annual bill

Seasonal regulars

The month is not strict, but the timing is consistent. These are the things done «before the season».

• Seasonal tire swap and getting the car ready for the new conditions
• Back-to-school: textbooks, uniforms, after-school programs, summer camp
• Seasonal expensive pursuits: skiing, bike servicing and gear

A calendar of people

The largest group by item count, and the most underestimated. It is not one birthday — it is ten.

• Birthdays of close friends and family — most people have eight to twelve such dates a year
• Weddings of relatives and close friends
• Baby-shower and new-baby gifts within your circle

A cultural calendar

Holidays that, in your circle, are traditionally marked with gifts or a table.

• The main yearly holidays with a shared meal and gifts
• Family-specific dates that recur for you every year

Once every few years

The most invisible group. These costs come so rarely that they cannot be «remembered». And they are almost always large.

• Replacing a phone
• Replacing a work computer
• Major appliances: refrigerator, washing machine, stove
• A mattress and larger furniture

Regular, but the date floats

These costs happen reliably, but they are tied not to the calendar but to your body and circumstances. They can only be estimated as an annual average.

• Dental: routine cleanings plus one or two fixes a year
• Regular checkups and visits to specialists
• Personal care that costs noticeably more than an average month

When all six groups are written out, it usually turns out that you have not three but fifteen or twenty annual obligations. This is not bad news. It is the same total you have been paying every year anyway — now it simply has names attached.

How the feeling changes after six months and a year

The first month after the funds are set up usually feels strange. The money in hand seems smaller: part of every paycheck now goes into the funds, and the working balance is noticeably leaner than before. It looks as if «nothing is being saved» — the funds are small, the targets far. This is normal. The method first looks like impoverishment, because for the first time you are seeing the share of your money that was never really yours — it just had no name on it.

By the third or fourth month, the first annual expense arrives — insurance, or a tax bill, or a seasonal swap. And here, for the first time, the thing the method was built for actually happens: you pay it from its own fund. Not from the main account, not from the emergency fund, not from «we'll figure something out» — but from the exact amount that had been collected for it. The feeling of «again, the wrong time» disappears, because the expense arrived on time — it was always going to.

By the twelfth month the annual cycle closes. The emergency fund is untouched: across the whole year, nothing planned was pulled out of it. It sits there for its actual purpose — the genuinely unexpected, the reason it was built. The budget has no more «surprises» in it. Income has not gone up. It is simply that the planning horizon now matches the horizon on which these costs actually live.

Where the funds should live

The method asks for one thing — that every fund be visible on its own. A separate account with a name, a target amount and a date; a single «irregular expenses» line cannot do this. Otherwise, in two or three months, it becomes impossible to say which slice of the remaining balance is promised to the vacation and which to the insurance.

In Finamus, goals are built exactly this way. Each goal is a separate account with its own name, amount and date. You see how much has accumulated in each, how much is left to save, and how the contribution lines up with your rhythm. When you spend from a particular fund, that fund's balance drops by exactly the amount spent. Goals do not mix with each other and do not dissolve into the overall balance.

The method rests on manual entry. You decide what belongs to the «vacation» fund, and you see that committed sum before you have even reached for your wallet. We have written in detail about why Finamus does not connect to your bank — in the context of these funds, that decision has a practical side: a bank shows a single combined balance, while you see many named funds, and the question «can this be spent?» is answered against a specific goal. You can set up and configure these funds on the goals page.