How to Build a 2027 Budget That's Based on What Actually Happened in 2026
Your 2027 budget should start with 2026
Most small business owners I talk to build their budget one of two ways. They make an educated guess in a spreadsheet, or they skip it entirely and plan to "watch the bank account."
I get it. A budget can feel like one more thing on a long list. But a budget built on a guess is just a guess with columns.
A budget works when it starts from real numbers. And right now, you have almost a full year of real numbers sitting in your books. So this coming year, don't start with what you hope will happen in 2027. Start with what actually happened in 2026.
Here's how to do it in six steps.
Step 1: Get your 2026 books caught up and accurate
Your budget can't be better than your books. If your 2026 numbers are behind, mis-categorized, or missing a few months, everything you build on top of them will be off too.
Before you plan anything, make sure:
Every month of 2026 is entered and reconciled to your bank and credit card statements
Expenses are in the right categories (not all piled into "Miscellaneous" or "Ask My Accountant")
Personal and business spending are separated
Loan payments are split between principal and interest
If you're reading that list and thinking "well, that's not happening," you're not alone. This is exactly what our catch-up bookkeeping service is for. Getting caught up now means you go into 2027 with a clean starting point instead of a pile of questions.
Step 2: Pull your real numbers
Once your books are clean, run a Profit and Loss report for January through December 2026, broken out by month. If you use QuickBooks Online, that's the Profit and Loss report with columns set to "Months."
You're looking for four things:
Monthly revenue. What came in each month, not just the yearly total.
Your biggest expense categories. Usually your top five or six make up most of your spending. Those are where your budget decisions really matter.
Owner pay. What you actually took out of the business, whether that's payroll, owner draws, or distributions.
Debt payments. Loans, lines of credit, equipment financing, and credit card payoffs.
Use the full 12 months. It's tempting to grab your best quarter and multiply by four, but that's how budgets end up wildly optimistic. Real numbers, the good months and the slow ones, are what make a budget you can actually use.
If you haven't read it yet, read my post that explains why your profit and your bank balance don't always match. It's helpful context before you start building.
Step 3: Find your seasonal pattern
Almost every business has a rhythm, even if you've never written it down. Look at your monthly revenue from Step 2 and ask:
Which months were strongest?
Which months were slow?
Did the slow months line up with anything predictable, like holidays, summer heat, school schedules, or your clients' own busy seasons?
This matters because your bills don't take the slow months off. Rent, software, insurance, and loan payments show up whether you had a great month or a quiet one.
Once you know your pattern, you can plan for it. Set aside cash during the strong months so the dips don't catch you off guard. A slow month you saw coming is a lot less stressful than one that surprises you.
Step 4: Decide what you'll pay yourself first
Here's a habit I see all the time: the business pays every bill, and the owner takes whatever is left over. Some months that's a decent amount. Some months it's nothing.
In your 2027 budget, owner pay gets its own line, and it goes in before you plan anything else. Pick a monthly amount that's realistic based on your 2026 numbers. Then build the rest of the budget around it.
This does two things. It makes your personal income more predictable. And it tells you very quickly whether your business, as it runs today, can support the pay you want. If it can't, that's not a failure. It's useful information that points you toward pricing, costs, or growth decisions.
Step 5: Build a simple monthly budget
You don't need fancy software for this. A spreadsheet with your categories down the side and January through December across the top works fine.
Start with last year's actuals. Fill in each month using your real 2026 numbers. This is your baseline.
Add your planned changes. Think through what will be different in 2027. Are you hiring? Raising prices? Adding a new tool or subscription? Paying off a loan? Adjust the months those changes actually start, not the whole year at once.
Plug in your owner pay from Step 4.
Leave room for taxes. Set aside a percentage of profit each month for income taxes. Your tax preparer can help you land on the right number for your situation but you can use 20 - 35% to start.
Look at the bottom line for each month. If a month shows a shortfall, now you know to set cash aside ahead of time.
Keep it simple. A budget you'll actually use beats a perfect one that sits in a folder.
Step 6: Check it against your actuals every month
A budget you never compare to your real results is just a wish list.
Once a month, after your books are closed, put your budget next to what actually happened. You're not looking for perfection. You're looking for patterns:
Is revenue tracking ahead or behind?
Is one expense category creeping up?
Are you on track to pay yourself what you planned?
This monthly check-in is where the budget earns its keep. It's also why monthly bookkeeping matters so much. When your books are current every month, you can spot a problem in the following month instead of finding out about it next year.
A note from my years as a lender
I spent more than 20 years in commercial and residential lending before starting Teal Business Solutions. When a business owner came to me for a loan, a budget sitting next to their actual results told me more than almost anything else in the file.
Here's what it told me:
You know your numbers. You aren't guessing about where the money goes.
You plan ahead. You've thought about slow months, upcoming costs, and how you'll handle them.
Your projections are believable. When your past budgets were close to your actual results, I could trust the projections you were giving me now.
The owners who walked in with clean books and a budget they'd tracked all year had a much easier conversation. They looked prepared, because they were. Even if you're not planning to borrow in 2027, building this habit now means you'll be ready if an opportunity comes up.
Frequently asked questions
What if I don't have 12 full months of numbers? If you started your business partway through 2026, use the months you have. Look at your average month, then adjust for anything you know is seasonal in your industry. Plan to update your budget after your first full year, once you have the complete picture.
When should I build my 2027 budget? November or December is ideal, once most of 2026 is in your books. January works too. The sooner you have it, the sooner it starts helping you make decisions.
How often should I update my budget? Compare it to your actuals monthly. Revisit the budget itself quarterly, or any time something big changes, like a new hire or a lost client.
Do I need a CPA to build a budget? No. A budget is a planning tool, not a tax document. Your bookkeeper can help you build it from your real numbers.
Ready to build your 2027 budget?
Start with mt free Revenue Goal Calculator. It helps you figure out what your business needs to bring in to cover your costs and pay you what you want.
If you'd rather have help, I'd love to talk. Teal Business Solutions works with small business owners in Conroe, The Woodlands, and across Montgomery and Harris County, plus clients nationwide, to get the books caught up and build a budget from real numbers. Fill out our contact form to book a Beyond Bookkeeping call, and let's see if we're a good fit.
