Latest / Budgeting for Beginners with Fexingo: Cash Envelopes, Apps, and Simple Money Tracking / How to Budget When Your Income Changes Every Month
Transcript
- Lucas: If your paycheck is different every single month — and I mean genuinely different, not just a few dollars either way — then most of the standard budgeting advice you hear is basically useless. Luna: Yeah, the whole 'divide your monthly income by four' thing doesn't work when some months you're looking at $3,000 and others you're scraping by on $1,800. Lucas: Exactly. That's the reality for about 36 percent of American workers now — freelancers, gig workers, commissioned salespeople, even some salaried roles with heavy bonus structures. And yet almost every budgeting book or app is built around a steady paycheck. Luna: It's like being handed a road map for flat terrain when you live in the mountains. Lucas: Right. So today I want to walk through a system that actually works for variable income. It's called the base-line method, and I first saw it articulated by a financial planner named J.D. Roth, though variations of it have been around for decades in the freelancer community. Lucas: The idea is simple: you don't budget based on what you hope to earn. You budget based on your rock-bottom, worst-month income from the past twelve months. That floor number becomes the ceiling for your fixed expenses. Luna: So if your worst month was say, $2,800, then your rent, utilities, car payment, minimum debt payments — all that combined needs to fit under that number. Lucas: Precisely. And I know that sounds painful. For a lot of people, that means their rent alone might be 60 percent of that floor. But the logic is defensive: if you can survive your worst month without touching credit cards, you can handle any month. Lucas: Now, before we go deeper — you'll notice there are no ads anywhere on this show. No sponsors, no affiliate links, no interrupting the flow to sell you something. If you find that valuable and want to support the choice to keep it that way, the link is buy me a coffee dot com slash fexingo. That's it. No pressure, just a way to keep these conversations ad-free. Luna: Yeah, we'd rather earn your trust than someone else's ad dollars. And it lets us focus entirely on what's useful for you. Lucas: Okay, back to the base-line method. Once you've locked in your fixed expenses at or below that floor, everything else becomes variable. Your groceries, entertainment, dining out, even some savings — those fluctuate month to month based on what's left over. Luna: And I think that's where people trip up. They feel like they should have a set grocery budget, but if you're variable income, that number has to be flexible by design. Lucas: Absolutely. Let me give you a concrete example. I worked with a graphic designer last year — call her Sarah. Her monthly income ranged from $3,200 to $5,800. Her lowest month was $3,200. So we set her fixed costs — rent, utilities, minimum student loan, car insurance, phone — at $2,700. That left a $500 buffer for her worst month. Luna: Only $500 for everything else in a bad month? That's tight. Lucas: It is. But here's the key: in her average months — around $4,500 — she had an extra $1,800. And in her best months, almost $3,000 beyond the fixed costs. The rule was: any income above the floor goes into one of two buckets. First, 20 percent into a buffer account that builds up for those tight months. Second, the rest can be used for variable spending, extra debt payments, or savings goals. Luna: So the buffer account essentially smooths out the dips. When a $3,200 month hits, she draws from that buffer to cover the gap above the $500 slack. Lucas: Exactly. Over the course of a year, Sarah's buffer never dropped below $1,200, and she actually built it up to about $4,000 by the end. That's the beauty of the system — it forces you to save during the good months so the bad months don't feel like a crisis. Luna: I want to ask about the psychology of this. Is it hard to not spend more when you have a $5,800 month and suddenly see all that extra cash? Lucas: It's the biggest challenge. There's a concept called lifestyle inflation, and for variable earners it's a trap. You land a big client, you get a fat commission check, and suddenly you 'deserve' a nicer dinner, a new gadget, a slightly more expensive apartment. But if that income spike isn't repeatable, you're setting yourself up for a crash. Luna: It's like a sugar high for your budget. Lucas: Exactly. The fix is to treat every dollar above your floor as if it doesn't belong to your everyday spending. It belongs to your future self. That buffer account, your emergency fund, your retirement, your irregular expenses — those all come first. Lucas: Let me add one more layer. If you're self-employed or freelance, you also have to account for taxes. Unlike a W-2 employee, nothing is withheld. So you need a separate tax savings account, and you should be putting aside roughly 30 percent of every payment — more if you're in a high bracket. Luna: That's not optional. I know too many freelancers who blew their whole first big check and then got slammed with a 10,000 dollar tax bill. Lucas: Yeah, I've heard that story way too many times. So in the base-line method, taxes come off the top before anything else. So Sarah's 5,800 month? First, 30 percent — 1,740 — goes to the tax account. That leaves 4,060. Then her fixed costs of 2,700 are covered. The remaining 1,360 gets split: 20 percent to the buffer account — 272 — and the rest, about 1,088, goes to variable spending and savings. Luna: So on a great month, she still only has about a thousand dollars of 'fun money' after everything else. That's disciplined. Lucas: It is. But that discipline is what makes the system work. Over a year, Sarah saved about 14,000 dollars — between her buffer, her tax account, and some retirement contributions. And she never once carried credit card debt. Luna: So for someone listening who's thinking, 'I don't even know what my lowest month is,' where should they start? Lucas: Go back through your bank statements for the past 12 months. Every month, calculate your total take-home income. Find the minimum. If you don't have 12 months, even six months gives you a decent picture. But be conservative — if you see a pattern, assume the worst might be lower than you've seen. Lucas: Then list all your fixed expenses — the ones that don't change month to month. Rent, insurance, subscriptions, minimum debt payments. Add them up. If that number is above your floor, you have two choices: cut expenses or increase your floor. And 'increase your floor' usually means finding a more stable income source — even a part-time gig — to raise that minimum. Luna: That's a hard conversation to have with yourself, but it's better than digging a hole. Lucas: Agreed. And once you get that fixed cost number under the floor, you can build your buffer. Aim for at least one month of fixed expenses in that buffer account before you worry about anything else. Luna: One thing I'd add: if you use cash envelopes, you can adapt this system too. Have a 'floor month' envelope with your bare-minimum cash for groceries, gas, and the like. Then have a 'surplus' envelope that you only fill in good months. Lucas: That's a great practical twist. The envelope system actually pairs beautifully with variable income because it forces you to see the scarcity in lean months and the abundance in fat months without panic. Lucas: One last point — and this is crucial — do not base your budget on your average income. If you make $4,000 one month and $2,000 the next, your average is $3,000. But if you budget at $3,000, you'll be short $1,000 in the low month and have a surplus of $1,000 in the high month. That sounds fine, but psychologically, that low month feels like failure. The base-line method avoids that entirely. Luna: Because you've already accounted for the worst case. There's no surprise. Lucas: Right. And that's really the goal — not just to manage your money, but to manage your stress around money. Variable income is already uncertain. Your budget shouldn't add to that uncertainty. Luna: So to wrap it up: find your floor, build your fixed costs under it, automate your tax savings, and let the buffer account handle the dips. Lucas: That's the framework. Next time, I want to talk about how to budget when you have multiple income streams — because that adds another layer of complexity. But for now, if you're living month to month on variable income, start with the floor.