How to Create a Zero-Based Budget
Build a zero-based budget once, automate it, and know every dollar has a job.
A zero-based budget tells you where every dollar is going before the month starts. You build it once, in an evening, and then you automate it. What you get for that evening is this. You know the rent's covered. You know you have the money for the utility bills. You know you've got a hundred dollars for coffee this month, and it's okay to spend it. And when those inevitable surprises happen, you know with confidence you've got this.
The zero means every dollar you earn has a job. It doesn't mean your account hits zero.
Key takeaways
- You build this once and automate it, so it runs without you. It isn't something you redo every month.
- Every dollar gets a job in one of three buckets: needs, wants and future.
- Your needs are the bare minimum you need to live. Your wants are what you choose to spend on. Your future gets taken care of first.
- The point is knowing you're going to be okay, and that a surprise won't put you under.
What a zero-based budget is
A zero-based budget is a plan you set as your standard for each month. Everything you earn goes into one of three buckets.
- Needs. The bare minimum you need to live. Rent, utilities, groceries, transit, your phone, and the minimum payment on every card and loan you carry. This one is fixed. It's unchanging, and the plan covers it in full.
- Wants. Takeout, delivery, coffee, subscriptions, entertainment, the gym. This is where you have the control. You decide what you spend the money on.
- Future. What you're setting aside for your future self. This one gets taken care of first, before the needs and before the wants.
It's tempting to put the coffee in needs, because it feels like you need it to get through the month. You don't need it to live, so it's a want.1 That doesn't mean it goes. It means you decide on it.
Most people who add up their real spending find out they're already in the negative before the future gets a single dollar. That's why so many people are in debt, and it's the exact reason to build the budget.
Find your situation
The method is the same for everyone. What typically changes is how the income comes in.
- Maya, renting on one income. About $3,200 a month. She runs the three buckets straight, and her future gets funded first, fifty dollars every two weeks, before she can spend it in the month. See it in her story.
- Nadia and Theo, two incomes and two kids. About $7,400 a month between them, landing on different days, with bills leaving from two accounts. They build one plan for the household, together.
- Frank, self-employed. Big invoices some months, quiet stretches in others. He keeps a buffer of a month or two of expenses in his chequing account and plans with money that has already arrived.
- Joanne, a few years from retiring. The amount she's paid rarely changes, so there's no mystery to solve. She's checking that everything has a home and that it all still fits.
How do you create a zero-based budget?
You start by finding out what you've actually been spending. This is the difficult part, writing it all down, all of it, and it's also the part you only do once. The plan has to be built on your real life, not the life you assume you're living.
Pull last month's transactions from every account and card you use. Your last month is more than enough to start, and three months is better if you have the patience, because one strange month can mislead you.
Go down the list and give every transaction a category. Aim for about seven. Rent, utilities, groceries, takeout, subscriptions, transit, entertainment. Use whatever names match your life, and don't judge any of it yet.
Keep your food in more than one category. Groceries, takeout and the delivery apps are three different habits and three different numbers, and adding them up as one line hides where the money is going.
Then put each category into its bucket.
| Category | Bucket |
|---|---|
| Rent | Need |
| Utilities | Need |
| Groceries | Need |
| Minimum debt payments | Need |
| Takeout and delivery | Want |
| Subscriptions | Want |
| Coffee | Want |
| Transfers to savings | Future |
When you're done, you can see what your life actually costs and where your money has been going.
What your wants show you
Your needs number is worth knowing on its own. It's the bare minimum your life costs, and most people have never added it up.
Your wants are a different story, because this is the bucket you control. One couple did this exercise and found they were spending over eight hundred dollars a month on takeout between the two of them. Not groceries, takeout. When they put takeout, the delivery apps and groceries side by side, food was costing them about twelve hundred a month. It shocked them, and it answered the question of why they felt behind. And unlike their rent, it was entirely theirs to change.
Having the control doesn't just mean cutting things out. You can drive to pick up your order instead of paying the fees on delivery apps. Most times, people find they're paying for subscription services they can't remember the last time they used, or thought they'd cancelled.
You're not looking for things to feel guilty about. You're finding the money you'd rather be spending somewhere else.
Take care of your future first
Now you build the plan, and the order is the whole point. The future gets taken care of before anything else, because when it goes last it gets nothing.
Start with ten dollars a week, moved automatically into its own account. Nobody really notices ten dollars a week leaving their account, and that's exactly why it works. It might not seem like much, but it will add up, and you can always increase it, even by $5. The key is to start somewhere.
That money has one job. It's for the bills you can't plan for. The dental work, the tire, the vet. It isn't the six-month emergency fund people picture. It's there so that when a surprise bill lands, it isn't a panic and it isn't a stressor. You don't put it on a credit card, and you don't stick the bill in a drawer where it causes you more issues down the road. You pay it, and you carry on with your month. Maya calls hers the calm account.
Then your needs, in full, including every minimum payment for any debt you have. Build the plan on your take-home pay, or net pay, the amount that's actually deposited into your account, not your gross salary.
Then your wants get what's left, and you decide how to spend it. If you gave coffee a hundred dollars, the coffee is paid for. Enjoy it.
- Needs$1,980
- Wants$1,120
- Future Maya ($50 every two weeks)$100
| Category | Maya's ~$3,200 month, all of it spoken for (illustrative) |
|---|---|
| Needs | $1,980 |
| Wants | $1,120 |
| Future Maya ($50 every two weeks) | $100 |
Here's the shape of it on Maya's month. About $3,200 is deposited monthly. Her future gets $100, taken off the top. Her needs come to roughly $1,980. Her wants get the rest, about $1,120, and she decides what that buys.
Then automate it
Set the future transfer to move by itself. Put your fixed bills on automatic payment where you can. That turns one evening into a plan that runs without you, and it's why you're not redoing this every month.
After that, a month takes minutes. You check the plan still matches your life, and you're adjusting numbers you already know. A rent increase, a new job, a baby. Move the money between buckets and keep going. You don't start over.
What if your pay isn't steady?
This is where looking at a few more months will be useful. Look at your lowest month, and your average. If the swings are bigger, allocate a buffer line in your future bucket and work on building up a one-month buffer of expenses. In looking at your income, a hoped-for number will set you up for failure before you've even started.
What changes this answer
- Bills that come once or twice a year. Car insurance, property tax, the holidays. You always knew they were coming, and they still land like a surprise if nothing was set aside. The fix is simple. Take the yearly amount, divide it by twelve, and set that much aside every month in a separate account, so the money is waiting when the bill is due. Your car insurance is still a need and the holidays are still a want. You're just saving for them monthly instead of scrambling when they arrive. Maya sets one up here.
- Joint finances. If you share money with someone, you need one plan, not two. Settle who pays what from which account, so nothing gets counted twice and nothing gets missed because you each assumed the other had it.
- How often you're paid. Twice a month is 24 paycheques a year. Every two weeks is 26, so twice a year a third cheque lands in a month you only planned two for. Build your plan on the standard months, and when the extra paycheque comes in, plan for it to go directly to the line items in your future bucket.
Run your own numbers
Run your own numbers in a budget that adds up every category and shows you what's still left to assign.
Our take
Most people who reach for a zero-based budget are tired of ending the month wondering where the money went, and would rather decide than react.
Plenty of people resist budgeting altogether, because it feels like a lot of work and, underneath that, because they're scared of what the numbers will show them. That first look is the hardest part, and it's also where everything turns. Once you've seen what a month of spending actually costs you, the budget stops being homework and starts being information.
What works after that is small changes rather than big ones. Nobody is telling you to give up your coffee. Keep the coffee, and take the money from something you care about less. You're deciding how you want to live. The budget is just where you write it down.
Where people go wrong
The first is quitting after a rough month. You'll have one, and so does everyone who does this. When you look back over a month that fell apart, you'll almost always find the one number you were guessing at, and now you know it. Put the real figure in and start the next month.
The second is leaving out the bills that only come once or twice a year, so something you always knew was coming arrives as a surprise. You didn't fail at willpower. The plan was missing a line, and you can add it.
The third is saying "I'll stick to the plan next month." You have to choose if you want to move from being worried or scared about your bills, to being confident in how you'll pay all your bills and enjoy the life you're building.
The last one is reading "zero" as spend down to empty and writing the method off as reckless, when it does the opposite. The dollar you set aside for your future is still in your plan, and a healthy month often ends with money sitting safely in your account.
Common questions
Is zero-based budgeting the same as YNAB?
YNAB, short for You Need A Budget, is a paid app built around the zero-based method, so the underlying idea is the same. But zero-based budgeting is the method, not the app. You can run it on paper, in a spreadsheet, or in any budgeting tool you like.
What if my income is irregular?
Do not budget a guess. The common fix is to budget last month's actual income this month, so you are always working with money that has already arrived, or to build a one-month buffer and work a month ahead off it. Seasonal, self-employed and commission earners lean on this, because it turns pay that rises and falls into a steady number you can plan against.
Is zero-based budgeting better than 50/30/20?
They answer different questions. A zero-based budget decides the job of every dollar. The 50/30/20 rule, popularized by the 2005 book All Your Worth, checks your proportions instead, roughly half your take-home pay on needs, thirty percent on wants and twenty on your future. Plenty of people build the zero-based plan first, then use the percentages as a check that one bucket has not taken over the month.
Does zero-based budgeting mean spending all my money?
No. Zero means you have nothing left unassigned, not that your account hits zero. Money you set aside for your future, or for a bill later in the year, is fully budgeted and stays in the account. A zero-based month often ends with a healthy balance whose purpose you have already decided.
Still have a question about your own situation?
Further reading
- All Your Worthby Elizabeth Warren & Amelia Warren Tyagi
The 2005 book behind the 50/30/20 split, which its authors call the Balanced Money Formula. Their case is that the handful of large commitments decides whether a month works, not the small economies.
Sources
Educational, not financial advice. Figures verified against primary sources on the date shown.
See it in a story: "Give Every Dollar a Job," the Sunday Maya learns to fund her future bucket off the top instead of from the leftovers. To build the plan on real numbers, first see where your money actually goes: track it for one honest month. Or browse the whole budgeting hub.