4 Ways to Budget With Inconsistent Income

How to budget with inconsistent income. Even with unpredictable and irregular cash flow, you can enjoy financial freedom. Here are 4 strategies that work!


I’m 30 years old and I’ve never had salary certainty. That is, I’ve never had a definite (or even approximate) sense of how much money I’m going to make in a given year.

From teenage camp counselor to professional actress to full time entrepreneur, inconsistent, unpredictable income has always been a fact of my financial life.


Even as my income has grown, the uncertainty of cash flow remains. (Turns out it doesn’t matter how many thousands of dollars are “on the way”, if none of them are in your bank account when it comes time to pay your quarterly tax bill).

To manage the demands of cash flow management with irregular income, I’ve mastered a variety of techniques to stay solvent in the short-term while also staying accountable to my big picture goals.


Today, I’m going to walk you through 4 ways to budget with inconsistent income. These strategies can be used individually, they can be mixed and matched, or they can be implemented all at once.

The objective is to create a framework that allows you to feel financially secure, even without salary certainty – to address long term financial plans like paying down debt and building savings, while meeting your monthly needs.


1. Live on Last Month’s Income


Instead of trying to guess what you’re going to make this month and budgeting off of that projection, use your actual earnings from last month to set the parameters for your spending this month.


I use my total income at the end of each month as a guide to map out my spending and savings plan for the next 30 days.


That way, I stay grounded in the reality of my means, even when I don’t know exactly what my means will look like going forward.


But what happens if you don’t earn enough one-month to cover the cost of your necessities the following month? And what is “enough” anyway?

That brings me to the next way to budget with inconsistent income…


2. Know Your Make or Break Number


How much, at a minimum, does it cost to run your life each month? That’s your make or break number.


To calculate your make or break number you need three totals:

  1. Your monthly bare bones budget total. That is, the cumulative cost of your monthly necessities – anything you need to live and work normally, including housing, food, insurance, transportation, etc.

Remember to include any irregular (but necessary) expenses in your monthly bare bones budget total. An annual bill for property taxes for example, you would divide by 12. A quarterly insurance payment, divide by 3.

  1. A bare bones budget buffer. Take your monthly bare bones total and add a budget buffer of at least ten percent. Life is always more expensive than we anticipate (even when we keep it bare bones).
  1. Monthly financial goal targets. What are you long-term financial goals? Paying off student loan debt? Hitting a retirement savings target? Saving up for a down payment on a home? Taking a vacation next summer?

Get grounded in the numbers needed to achieve your goals, then break each one down into a manageable monthly mini-target. If the total monthly sum of your financial goal targets is more than you can afford, prioritize those that are most important to you, adding the remainder into your plan as you’re able.

Monthly bare bones total + budget buffer + monthly financial goal targets = monthly make or break number




Your make or break number, calculated in this fashion, is a benchmark for the financial viability of your life.


I like this system because it makes your long-term financial goals as non-negotiable as your necessities. If you find yourself having to prioritize elements of the make or break number over others – for example, transit costs over retirement contributions – you have reached “break” point, leaving you with two options – reduce your bare bones expenses and/or increase your earnings.

When you have inconsistent income, knowing you make or break number is critical as it tells you exactly how much you need to earn to have “enough” each month.

To budget with your make or break number, simply subtract it from your previous month’s income.

You’ll then know how much you have to dedicate toward discretionary spending – like eating out and buying gifts – or how much you can devote to super charging your financial goal getting.


3. Try Zero Sum Budgeting


The make or break number offers a lot of budget flexibility.

Basically, as long as you surpass your make or break point, you can spend your money however you like.

If, however, you prefer a bit more structure, or you want to fast track a certain savings goal, saving up for a wedding for example, consider the zero sum budgeting technique.


Zero sum budgeting gives every dollar you earn a destination, reducing the likelihood of pre-emptive spending on fleeting luxuries when you’re trying to save up for big picture priorities.


Here’s how it works – write down your last month’s income on a piece of paper, then subtract your bare bones budget total, that is, the cost of your monthly necessities – housing, food, etc.

With the remaining earnings, allocate specific dollar amounts for discretionary spending (spending on your wants) and your monthly financial goal targets (as defined in your make or break number, plus anything else you’d like to fund), until you get down to zero, with every dollar accounted for.


For example, if I earned $3,500 last month and my monthly bare bones total is $2,500, I now have $1,000 to designate between my “wants and my goals”. Instead of just letting my spending play out as the month progresses, I can use a zero sum budget to set my spending and savings intentions at the start.

For example, $150 to short-term/emergency fund savings, $500 to retirement savings, $100 to the vacation fund, $200 for entertainment and $50 for gift giving.


To hold myself accountable, I can then satisfy my financial goal targets, (whether it’s setting aside money in savings, contributing to a retirement account or paying off debt), immediately. Meaning, I fund my financial goals at the beginning of the month because I’ve already calculated exactly how much I can afford to contribute to them.

With those dollars already set aside in savings or elsewhere, I’m much less likely to overspend on non-necessities.


By accounting for every dollar, zero sum budgeting adds an extra layer of accountability to achieving your financial goals, even when you don’t have consistent earnings.


4. Use an App


If you want even more accountability to your spending plan, or, if by contrast, you’re struggling to implement any of these techniques and need a super simple way to start managing your financial life, try downloading a smartphone app that tracks your spending, like Personal Capital.


In my opinion, tracking your spending is the single most effective thing you can do to transform your financial life – regular income or not.


It fosters mindfulness around your money and shows you exactly where you stand financially, providing a no nonsense indicator of how your present financial picture compares to your desired financial future.


I’m a big fan of apps because they make that financial picture mobile. It’s like having a tiny scale in your pocket as you’re working towards a fitness goal. If you step on the scale in a moment of decision – when considering a second glass of wine or piece of chocolate cake for example – and find yourself already teetering on the edge of your target weight, you’ll probably have an easier time saying no to the extra indulgence, keeping you accountable to your long-term bikini body goal.

Similarly, an app that tracks your spending can offer that same kind of accountability for your budget. In the moment of decision, you can quickly check-in on your smartphone to assess whether your spending choices are something you can actually afford and whether they’re going to bring you closer towards or push you further from your long-term financial goals.


How to Budget With Inconsistent Income: Final Tips


1. Be patient. It can take anywhere from 3 to 6 months to find a budgeting system that works – and that’s if you have regular income. Don’t beat yourself up if you’re struggling to implement one of these systems effectively. it takes time. Stick with it and I’m 99% sure you’ll reap the benefits.


2. Be flexible. What I’ve outlined here are merely suggestions – frameworks for getting started. It’s up to you to fill in those frameworks with budgeting strategies that work for you. Feel free to experiment and play around with new techniques (and share any you find useful in the comments).


3. Build a healthy cash cushion. As your considering financial goal targets to include in your make or break number, be sure to account for a healthy emergency fund – a 3-6 month cash reserve.

For those with inconsistent income, I recommend an even greater cash cushion, 6-9 month’s worth of expenses in savings.

I know it’s daunting, but you don’t have to do it all at once. Once you get an initial emergency fund in place, you can add to it gradually over time.

Having that cash cushion will give you security and peace of mind when work dries up or paychecks take an extra 6 weeks to process, or whatever else might interrupt your cash flow.


Whatever you do, do not use inconsistent income as a crutch or justification!


Meaning, don’t use irregular income as an excuse for why you can’t budget, save, invest or pay down debt.

You can enjoy financial freedom with irregular income, as long as you continue engage with tools and strategies to build the right financial framework for you.




34 responses to “4 Ways to Budget With Inconsistent Income

  1. Tracking your spending is so simple now with the free aggregators, that there really is no excuse to not at least have a general idea of where your money is going.

    I feel like I generally have a pretty good handle on it, but even being a super PF nerd, there are still times when I get caught by surprise that I actually spend $X on last month on Z thing,. So no wonder people who aren’t remotely interested in PF get frustrated with it.

    Irregular income is super scary. I’m headed there next year, but certainly will have a solid cash + bond cushion. :-O

        1. Hi Virginia, I’d recommend an app like Mint or Personal Capital that syncs all your accounts in one place so you an visualize your full financial picture.

  2. Nice tips Stefanie. There are certain members of our family who flat out refuse to budget (and everything similar) as they have very inconsistent income. They are the ones who could benefit most from your tips!

    If only they’d listen/learn.


    1. It’s definitely a tough to see friends/family struggling with their financial life and refusing to be proactive. One thing I’ve come to terms with is the fact that people have to want to make that change on their own time.

  3. Really great resource you’ve put together here, Stefanie! I’ve virtually ruled out running a business full-time until my wife is done with grad school, but there are clearly millions who make it work with inconsistent income.

    1. With the rise of the gig economy and more people managing inconsistent income, it will be interesting to see how the PF/financial landscape changes.

  4. I was talking with a friend of mine that we need to manage at least 2 jobs at the same time to have a decent salary…in the past 20 years salary kept the same while tax increased, so sometimes is necessary to manage multiple jobs, but having a budget and understand priorities could help to manage every kind of budget…

    1. Calculating your make or break number will give you a sense of how much you need to start making through your biz to quit your job too!

  5. These are such great tips. I see a lot of people throw in the towel because they can’t figure it out. I worked a 100% commission job for a while, and hated the stress of starting over every month. Keeping a cash cushion was key! We didn’t get paid till items were delivered, which could be weeks or months out.

    1. Same here. It can take weeks for me to get paid. I only count income that’s actually arrived in my bank account for a given month, not work I’ve done.

  6. Great point about having a healthy cash cushion! Not having an emergency fund is certainly a recipe for disaster. It’s important to have for someone earning a consistent income, more important to have for someone earning an inconsistent one!

  7. Nice tips Stefanie, I must say your analogy is definitely apply for financial needs and spending of an Individual. It will be good to know your passive and active income before spending all of it without making any proper plans which might leads to financial unstability.

    I always prefer using an applications to track your expenses and make a proper plan out of it.

    Nice post and keep writing great stuff,

    Have a good day!

  8. The zero sum budgeting concept works well with your income variation and also very well for salaried individuals. There’s a software called “You Need a Budget” that teaches that concept and it’s very effective. A good method to be debt free as well. (I’m not an affiliate of the software, but like it because it works) Good article.

    1. Thanks for sharing Gustav. I like the zero sum budget because it grounds me when I feel I’ve gotten a little lax or out of control with my finances. Staying accountable by designating every dollar keeps my money mindfulness on track.

  9. I had an extremely inconsistent, hourly job right out of college. My budget revolved around my set expenses, like my car payment and rent. Then “flexible” expenses like utilities and groceries were monitored very, very carefully. Out of fear I would squirrel away $20 a month for savings, since that’s all I could afford. It hurt because that $20 was half a week’s worth of groceries, but I made it happen with an inconsistent income. If I had surplus money at the end of the month, it went straight into savings.

    As it turns out, I later went a month without a paycheck and my meager savings saved my ass.

    I think it’s especially important to prioritize savings when you don’t have a regular income. You just don’t know what could happen.

    1. Your prioritization of your savings is SO impressive. Unfortunately, I think many individuals use inconsistent income as an excuse for NOT saving, rather than as motivation to save MORE.

  10. I found that it works better for me if I divide annual bills by 11 (months) as the bill is due in month 12. It does push the monthly payment a bit higher but you’re certain to have the full amount needed in good time to pay the bill immediately when it is due to be paid.

    Regards, Pinch

  11. Thank you for the very easy to understand article on budgeting. This is one of the most important money management tools we can do for ourselves and yet we don’t do it. I have tried many times to set up a budget. I don’t have a regular income and have never been able to figure out budgeting because of this. Thanks to your article I think I will give it another shot.

  12. I would say the most important is make knowing your “break or make number”. Going over the amount you can afford each month is what puts a lot of people in debt. Using credit on things they can’t afford.

    1. Agreed. If you don’t know your essential cost of living, it’s going to be hard to know how much you can afford to spend on everything else!

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