Ask most small business owners if they have a budget and you'll get one of three answers: "I keep it in my head," "I tried a spreadsheet once but stopped updating it," or a long pause followed by "not really." You're not alone. A 2024 Clutch survey found that 61% of small businesses do not maintain a formal budget. They wing it — checking their bank balance, eyeballing expenses, hoping the math works out.
Sometimes it does. Often it doesn't. Without a budget, you don't find out you're losing money until you've already lost it. You don't notice that your packaging costs doubled over six months. You don't realize that the $47/month in subscriptions you forgot about is eating $564 a year. You can't plan for the slow months because you don't know how slow they actually get.
A budget isn't about restriction. It's about knowing where your money goes so you can make better decisions about where it should go.
The Simplest Budget Format That Works
Forget complicated accounting software. Your small business budget boils down to one equation:
Revenue - Fixed Costs - Variable Costs = Profit
That's it. Everything else is detail inside those three buckets. Let's fill them in with a real example.
Meet Sarah. She makes beaded jewelry and sells it on Etsy and at two local markets each month. She's been at it for a year and averages about $3,000/month in revenue. She thinks she's doing okay, but she's never actually sat down and mapped it out.
Fixed Costs: What You Pay No Matter What
Fixed costs don't change much month to month regardless of how many sales you make. For Sarah:
- Etsy Plus subscription: $10/month
- Canva Pro (for product photos and social graphics): $13/month
- Cloud storage for product photos: $3/month
- Craft fair booth fees: $75/market x 2 = $150/month
- PO Box rental: $22/month
- Business insurance: $40/month
Total fixed costs: $238/month
Variable Costs: What Changes With Sales Volume
Variable costs go up when you sell more and down when you sell less. These are directly tied to making and delivering your product:
- Materials (beads, wire, clasps, cord): $480/month
- Packaging (boxes, tissue, thank-you cards, branded stickers): $120/month
- Shipping supplies and postage: $225/month
- Etsy transaction and payment processing fees: roughly 10% of Etsy sales, so about $210/month
- Marketing (Instagram ads, promoted Etsy listings): $100/month
Total variable costs: $1,135/month
The Profit Picture
$3,000 revenue - $238 fixed - $1,135 variable = $1,627 profit
That's before Sarah pays herself. And before taxes — she should be setting aside 25-30% for quarterly estimated payments. At 25%, that's $407.
Actual take-home: roughly $1,220/month.
Sarah thought she was keeping "most" of her $3,000. Seeing $1,220 on paper is a reality check — but it's also a starting point. Now she can see exactly where her money goes and start making choices about it.
Listing Your Real Expense Categories
The biggest reason budgets fail is that people forget categories. Here's a comprehensive list for product-based businesses. Not all will apply to you, but scan through it and check which ones you're currently ignoring:
- Materials and supplies — raw materials, components, ingredients
- Packaging — boxes, mailers, tissue paper, tape, labels, inserts
- Shipping and postage — USPS, UPS, FedEx, shipping software subscriptions
- Platform fees — Etsy, Shopify, Amazon, Square transaction fees
- Payment processing — credit card fees (typically 2.9% + $0.30 per transaction)
- Software subscriptions — design tools, accounting software, email marketing, scheduling tools
- Marketing — ads, promoted listings, business cards, event sponsorships
- Booth and event fees — craft fairs, farmers markets, pop-up shops
- Equipment and tools — budget a small monthly amount for replacement and upgrades
- Business insurance — general liability, product liability
- Professional services — accountant, bookkeeper, lawyer (even if just once a year)
- Education — workshops, courses, books
- Travel — gas, mileage to post office, markets, supply runs
- Taxes — federal, state, self-employment (set aside 25-30%)
Go through your bank statements from the last three months. Every business transaction gets assigned to a category. You'll probably find at least two or three expenses you completely forgot about.
Budgeting for Seasonal Swings
If your revenue is the same every month, you can skip this section. But for most product businesses, it's not even close. Sarah's monthly breakdown looks like this:
- January-February: $1,500-$1,800 (post-holiday slump)
- March-May: $2,500-$3,000 (Mother's Day, spring markets)
- June-August: $2,200-$2,800 (summer slowdown with a July dip)
- September-October: $3,000-$3,500 (holiday prep, fall markets)
- November-December: $5,000-$6,000 (holiday season)
Her "average" of $3,000 is misleading. In January she might bring in $1,600 but still owe the same fixed costs, still need materials for the spring inventory she's building, still pay for booth fees. If she budgets based on $3,000/month, she's going to be short in winter and flush in fall.
The fix: budget based on your lowest typical month, not your average. If Sarah budgets around $2,000/month in expenses and revenue hits $1,600 in January, the gap is $400 — which she can cover from the surplus she banked in November and December. If she budgets around $3,000 in expenses because "that's the average," January's shortfall is $1,400. That's a crisis.
The 50/30/20 Rule, Adapted
The personal finance 50/30/20 rule (50% needs, 30% wants, 20% savings) doesn't map perfectly to a business, but the concept adapts well:
- 50% — Cost of Goods Sold and Operations: Materials, packaging, shipping, platform fees, everything it takes to make and deliver your product. If this number exceeds 50%, your margins are too thin or your prices are too low.
- 30% — Owner Pay and Taxes: Your salary and your quarterly tax savings. If you can't pull 30% for yourself and taxes, the business isn't sustaining you yet.
- 20% — Growth and Reserves: Marketing, new equipment, education, and — critically — a cash reserve for slow months and emergencies.
For Sarah at $3,000 revenue: $1,500 for COGS and operations, $900 for her pay and taxes, $600 for growth and savings. Her actual numbers ($1,373 for COGS/ops, $1,220 for pay including tax set-aside, leaving $407 for growth) are close but slightly thin on the growth side. She might want to bump prices on a few items or trim that $100/month marketing spend if it isn't generating measurable returns.
The Monthly Check-In: 30 Minutes That Save You Thousands
A budget only works if you look at it. Once a month — pick a specific day, like the first Sunday — sit down and compare your budgeted numbers to your actual numbers.
Open your bank statement. Open your budget. For each category, write down what you planned to spend and what you actually spent. Here's what Sarah's March check-in might look like:
- Materials — Budget: $480, Actual: $540 (over by $60, she stocked up on a sale)
- Shipping — Budget: $225, Actual: $198 (under by $27, lighter month)
- Marketing — Budget: $100, Actual: $145 (over by $45, ran extra ads for spring)
- Platform fees — Budget: $210, Actual: $195 (under by $15)
Small variances are normal. You're looking for patterns. If materials have been over budget three months in a row, either your budget is wrong or your costs have changed and you need to adjust your prices. If marketing is consistently over, you need to decide whether the spending is working — are those extra ads bringing in enough sales to justify the cost?
What to Do When You're Over Budget
You ran the numbers and you're spending more than you're bringing in. Or your margins are razor-thin. Here's the decision tree:
First, look for expenses to cut. Subscriptions you forgot about. Shipping supplies you could source cheaper. Marketing channels that aren't converting. Sarah discovered she was paying $15/month for a scheduling app she stopped using four months ago. That's $180/year for nothing.
Second, look at your pricing. If your COGS is above 50% of revenue, your prices are probably too low. Run your products through a proper pricing formula — materials plus labor plus overhead, times a profit multiplier. Many makers are undercharging by 30-50%.
Third, examine your product mix. Not every product has the same margin. Sarah's simple stud earrings take 10 minutes to make and sell for $18 with $3 in materials. Her elaborate necklaces take 90 minutes and sell for $55 with $12 in materials. The earrings generate $90/hour in gross revenue. The necklaces generate $37/hour. If she's spending most of her production time on low-margin pieces, her overall profitability suffers. Shifting her product mix toward higher-margin items — or raising prices on the lower-margin ones — improves the whole picture.
Fourth, increase revenue. This is the last lever, not the first. More sales without healthy margins just means you're losing money faster. Fix your costs and pricing before chasing more volume.
Your budget doesn't need to be perfect. It doesn't need fancy software or an accounting degree. It needs to exist, it needs to be honest, and it needs to get looked at once a month. That's enough to put you ahead of the majority of small business owners who are running on gut feelings and bank balance checks.