Saving for Goals by Date: the Simple Math

There's something you want, and a date you'd like to have it by. Start with what it costs, subtract whatever you've already set aside, and divide what's left by the number of months you've got. That's your monthly number. Divide it again by how often you're paid and you've got the amount to move on payday. Over two years you can ignore interest completely and you'll still get there on time.

Key takeaways

• Price the thing properly first. If you guess your total, every number you work out after it is wrong.
• Take off what you've saved, divide by the months, then divide by your paydays. That's the figure you set up as an automatic transfer.
• On a two-year goal, interest does almost nothing for you. Stretch the same goal to five years and it covers about $1,700.
• If your monthly number's too big, you've got three moves. Push your date back, shrink your goal, or find more money. Pushing the date back does the most.
• You can start small. You can also set the increase now, dated, so you're not asked to decide again in three months.

What does the goal actually cost?

When a goal feels out of reach, the price behind it is usually a guess. Ask what a trip would really cost, or what the down payment on a house comes to, and most people can't say. They've never sat down and totalled it up.

Twenty thousand dollars is a lot to look at in one go, and that's where most people stop. Divided over two years it's about $660 a month.

So get your real price first. If it's a trip, that means the flights on the dates you actually want, the hotel for those nights, the airport parking, the insurance, and whatever you'll spend once you're there. Put it in a spreadsheet so you can see your total, and do the same whether you're pricing a car, a wedding or a down payment. Then choose your date, and be realistic with yourself about it.

Now you've got the two numbers you need, a price and a date.¹

How much do I need to save each month?

Take your price, subtract what you've already got, and divide by the number of months until your date. Say you want a $20,000 down payment, you've saved $3,500, and you've got two years. That leaves you $16,500 to find. Split across 24 months with no growth at all, that's $687.50 a month. In an account paying 3%, you need $659.19. Both figures are illustrative.

That isn't a figure your bank can act on, though, because your money doesn't arrive monthly. You need it in paydays.

Illustrative. The same $659.19 a month on each pay schedule, rounded up to the next dollar.

$305 every two weeks looks lighter than $330 twice a month, and it is. Two months a year you'll get three cheques instead of two, so you're making 26 payments over the year rather than 24.

Whatever your number comes to, round it up, never down and never to the nearest dollar. The exact figure here is $304.24, and if you set aside $304 you'll finish your final month about $13 short, while $305 leaves you roughly $41 ahead.

The savings goal calculator opens on this same example, so you can push your date around, try a different pay schedule, and watch your number move. Run your own numbers

Does the interest do any of the work?

Almost none, on a goal this close. Of your $20,000, roughly $679 arrives as growth, and the remaining $19,321 comes from you and from whatever you'd already saved. Stretch the same goal out to five years and growth covers about $1,711, which is two and a half times as much and still under a tenth of what you need.

So you're putting in nearly all of it yourself, which means you can leave it somewhere completely safe and still arrive on time. Money you intend to spend within a year or two normally belongs somewhere protected and easy to reach, so a savings account, a short-term deposit, or a short-term guaranteed investment certificate, or GIC.¹ If you want the fuller version of the account question, where you keep money you might need in a hurry covers it.

When the number doesn't fit

Sometimes you do the division and the answer's more than you've got. You've got three ways to change it. Push your date back. Shrink your goal. Find more money.

Moving your date helps most at the near end. Going from one year to two takes your monthly figure from $1,347 to $659. Going from four years to five only takes it from $315 to $246. A goal you want inside two years counts as short term, three to five years as medium term, and six or more as long term.¹ Once you're past two years you've got more choice about where you keep the money, because you're not about to spend it.

Shrinking your goal is the option people resist most. Price it anyway. The same plan at $16,000 instead of $20,000 needs $497 a month rather than $659.

Your third option is to sell things you already own. Two thousand dollars now takes your monthly figure from $659 down to $573.

A mother ran a garage sale with her two children and let each of them price their own things. She promised to match whatever they sold, so anything they made, they doubled. Her son priced his high, because he was sure his things were worth a lot. Her daughter priced hers low and went for volume. He made about fifty dollars. She made close to a thousand.

So price yours to sell. Twenty dollars for a coat and thirty for a chair doesn't sound like it's worth your afternoon, but that's how you get to two thousand.

Most people who miss the number push their date back rather than shrink the goal. Some do the opposite, when the date's fixed by a lease running out or a wedding that's already booked.

Start small and step it up

You can start below the number you need, with an amount you can move without noticing it, and raise it on a schedule you set today.

Say you can manage $150 every two weeks, not $305. On its own, that gets you to $20,000 in about 47 months. Now add $10 to the transfer every three months and change nothing else, and you're there in roughly 36 months, eleven months sooner. By the time you arrive you're moving $260 a payday, which is still comfortably less than the $305 that looked impossible when you started.

Two years in, you're $1,852 ahead of where you'd have been, on seven increases of ten dollars. Three years in, your gap is $4,410.

Keep adding them, or set the increase to repeat if your bank lets you, and you've then decided this once, today, instead of having to decide again every three months for the next three years.

Most people go looking for the extra money by cutting everything they enjoy out of their week, and those plans tend to collapse around month two. Most people do better giving the coffee a budget of its own, fifty dollars a month say. Then when you skip one, that's what goes to your goal. At five dollars a coffee, and that price is illustrative, four skipped coffees a month is about twenty dollars. That's one of your ten dollar steps.

Before you set up the transfer

If you're carrying a credit card balance, that usually comes first. A card at 20% takes 20% from you every year, guaranteed, and no savings account will pay you anything approaching that.¹

If you're saving inside a tax-free savings account, or TFSA, the timing of your contribution room matters. Withdraw the money and you get that same amount of contribution room back on January 1 of the following year, not right away.² On a dated goal you already know roughly when you'll spend it, so you can see that cost coming. Take $20,000 out in October and you're $20,000 of room short until January. Your limit is $7,000 for 2026, so a goal that size uses about three years of your room on its own.²

If your income moves around, what your worst month can cover is a safer size than what your average month can. That's anyone self-employed, on commission, or working shifts. You can then top it up manually in the months you do well. A transfer that bounces costs you an overdraft fee on top of everything else.

Look up what your own account actually pays before you count on any growth. A savings account paying 0.05% and one paying 3% won't build you the same balance, and your bank publishes both on its own site.

Saving for more than one thing at once

Most people have more than one goal running. A laptop this year, a trip next summer, a house one day.

Plenty of people give each goal its own account. It sounds like too much, but it lets you watch each one progress separately. A single balance with your trip money, your laptop money and your down payment mixed into it won't tell you whether any single one of them will land on time. You decide how much goes into each. They run at different speeds.

Order matters when you can't fund all of them immediately. Your emergency fund usually comes before a dated goal, because if something goes wrong and you've got nothing behind you, it goes onto a credit card and undoes the saving you've already done. How big your emergency fund should be is a separate question, and it's worth answering before you split up the rest.

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Common questions

Should I pay off debt before saving for a goal?+

Usually, where the debt costs you more than your savings earn. The card's charging you a guaranteed 20% a year, and nothing you can safely earn on savings gets near it, so clearing it first leaves you further ahead. Plenty of people keep a small transfer to the goal running anyway, so they can watch something move, and send the bulk to the card.

Is a TFSA a good place to save for a goal?+

It can be, as long as you know the timing. A TFSA can hold a plain savings account, which suits a dated goal. When you withdraw, you don't get that contribution room back until January 1 of the next year, so spending in the fall costs you room for the rest of that year.

I get paid every two weeks. Do I just halve the monthly amount?+

No, and if you halve it you'll be saving more than you need. Being paid every two weeks gives you 26 cheques a year rather than 24, so your per-payday amount is a little under half the monthly figure. On $659 a month that's $305 every two weeks, not $330.

What rate of return should I assume?+

On a goal two years out, assume very little and treat anything extra as a bonus. Growth covers only a few hundred dollars of a $20,000 goal over two years, so you'll be putting in nearly all of it whatever the rate turns out to be.

What happens if I miss a transfer one month?+

Nothing breaks. You're behind by that one amount, so either add it back across the following months or accept that your finish date moves by a few weeks.

Further reading

• Your Money or Your Lifeby Vicki Robin & Joe Dominguez

  Useful before you pick the goal at all. It's about working out what you actually want your money to buy you.

Sources

1. FCACSetting savings and investment goals. Carries the amount-and-date method, the short, medium and long term horizon bands, what short-term savings are usually held in, and the guidance on paying down debt first. Accessed 2026-08-31.
2. CRAHow to calculate your TFSA contribution room. Carries the 2026 TFSA dollar limit of $7,000 and the rule that withdrawn amounts return as contribution room on January 1 of the following year. Accessed 2026-08-31.

Educational, not financial advice. Figures verified against primary sources on the date shown.

See it in a story: "Sinking Funds," where Maya prices a friend's wedding, a dying laptop and a trip she keeps putting off, and finds out none of them is an emergency. Or browse the rest of the budgeting hub.