Business taxes can feel daunting, but they don’t have to be. The 2025 tax season (filed in early 2026) brings some solid opportunities for small business owners, and organizing your finances is a matter of creating a method that works for you. To create that method, you just need a solid system, some decent software, and maybe a strong cup of black tea (or coffee if you’re not on the tea train!).
Let's walk through how to organize your financial statements and make tax season less painful.
Disclaimer: This content should not be construed as legal or tax advice. Always consult an attorney or tax professional regarding your specific legal or tax situation.
Why organization is key for tax season

I'll be honest with you. When I first started my business back in 2007, I acted a little like tax season was something that happened to other people. You know, like the people who wore suits and had actual offices instead of working from their couch in pajamas like me.
Spoiler alert: Tax season happens to all of us.
And let me tell you, nothing humbles you quite like sitting in front of your computer trying to fill out tax forms and needing receipts you threw away six months ago as proof of the deductions you’re trying to claim. Not to mention trying to explain why you have 58 transactions labeled “miscellaneous” in your accounting software. Oops!
It’s important to get organized, and the first step in that process is figuring out exactly what taxes your particular business will owe.
What taxes do small businesses need to plan for?
Ultimately, the taxes you pay depend on your business structure. A sole proprietor files differently from an LLC or corporation. Here are the main taxes you may be on the hook for:
- Income tax is the big one. If you're self-employed, you'll pay this on your personal return at rates between 10% and 37%. C Corporations pay a flat 21%. Most pass-through entities (like LLCs and S Corps) get a 20% deduction on qualified business income, which is now permanent. That increases to 23% in 2026.
- Self-employment tax covers Social Security and Medicare. That's 15.3% of your net self-employment income, not gross revenue.
- Payroll tax kicks in if you have employees. You and your employees split Social Security (12.4% total) and Medicare (2.9% total). Plus, you'll pay federal unemployment tax at 6% on the first $7,000 of each employee's wages.
- Sales tax gets complicated fast, especially if you sell online. You need to collect it in any state where you have "nexus," which basically means a connection to that state. This could be an office, warehouse, or even just hitting $100,000 in sales there.
There are other taxes too (capital gains, property, excise), but these are the main ones keeping most small business owners up at night.
How to organize your business finances
Now that we’ve got a basic idea of what taxes tend to include, let’s go over how you can organize your finances for tax season.
Step 1: Get your records together
You know what makes your accountant charge you more? Showing up with a shoebox full of crumpled receipts and bank statements still in their envelopes.
Okay, this might not be completely accurate. But the more organized you are, the less you'll likely pay in fees, and the better your deductions will look.
Plus, if the IRS comes knocking, you'll actually be able to find what they're asking for.
So, what should you track?
- Every business expense. Yep! All of them. That coffee meeting? The new laptop? The business cards you ordered at 2 AM because you couldn't sleep? Write it all down. Documentation is the only way to claim anything!
- All of your income. Every payment from clients, customers, or that one person who still insists on paying by check.
- Employee salaries and contractor payments. If you pay anyone, document it.
- Mileage. Business trips count, and at 70 cents per mile in 2025, they add up fast.
- Estimated tax payments. Keep records of what you've already paid quarterly.
The IRS says you need to keep most tax records for three years, but it’s highly recommended you hold onto them for six if you underreport income by more than 25%.
Property records? Keep those until you sell the property, then add three more years.
Step 2: Choose accounting software that works for your needs
Look, you could track everything in a spreadsheet. But unless you really love spreadsheets (and if you do, we need to talk!), invest in actual accounting software.
- QuickBooks Online is the market leader. Many people would say there's a good reason for that. Just one of which is that it integrates with over 14,000 financial institutions and works with most accountants.
- Xero is great if you work with a team because it gives you unlimited users on all plans. That's huge.
- FreshBooks works best for service businesses and freelancers. Excellent time tracking and invoicing.
- Wave is completely free for basic accounting. Seriously. Free. They make money on payment processing. If you're just starting out or bootstrapping hard, this is your friend.
No matter which software you choose, connect your bank accounts so transactions import automatically. Set up categories that match IRS tax forms. Attach receipt photos to transactions (most apps let you snap pics with your phone). You’ll save yourself so much time in the future.
And please, please keep your business and personal expenses separate. Get a business bank account and credit card, and never let the two cross over. Co-mingling these two accounts is called piercing the corporate veil, and basically, it can cause a business owner to be held personally liable for their company’s debts and obligations.
Not only does mixing personal and business funds make a mess for taxes, it also makes you look unprofessional if you ever get audited, and creditors can go after your personal assets because you could lose the protection of limited liability.
Step 3: Know your deadlines

Missing tax deadlines costs you money in penalties. The IRS charges 5% of unpaid taxes for each month you're late, maxing out at 25%. That's real money leaving your pocket for no good reason.
Add these key dates for 2026 to your calendar:
- January 31: If you have employees, file Form 940, and send W-2s to employees and 1099-NECs to contractors who made more than $600.
- March 17: S Corporations and Partnerships must file (Form 1120-S and Form 1065).
- April 15: Sole proprietors and C Corporations file. This is also when your first quarterly estimated tax payment is due.
- Quarterly payments: Due April 15, June 16, September 15, and January 15 of the next year.
You can request extensions (Form 7004 for corporations and partnerships, Form 4868 for sole proprietors), but that only extends your filing time. You still have to pay what you owe by the original deadline or face penalties.
Step 4: Track everything that saves you money
Tax deductions reduce your taxable income, which means you pay less tax. The IRS lets you deduct "ordinary and necessary" business expenses. Let’s take a look at the big ones.
- Home office: If you use part of your home exclusively for business, you can deduct it. The simplified method is $5 per square foot, up to $1,500 annually. Or calculate the percentage of your home used for business and deduct that percentage of rent, utilities, and insurance.
- Vehicle expenses: Track every business mile. You can deduct 70 cents per mile in 2025, or calculate actual expenses (gas, repairs, insurance) times your business use percentage.
- Equipment purchases: This is where 2025 gets interesting. Recent tax law changes restored 100% bonus depreciation for property acquired after January 19, 2025. That means you can deduct the full cost of qualifying equipment in the year you buy it. Plus, Section 179 limits doubled to $2.5 million.
- Office supplies and software: Printer ink, shipping materials, that fancy project management tool. All deductible.
- Professional services: Accountants, lawyers, web designers, business consultants. Keep those receipts.
- Business meals: Restaurant meals are 100% deductible through December 31, 2026. After that, they drop back to 50%. Other business meals stay at 50%.
- Phone and internet: Deduct the percentage you use for business.
- Advertising and marketing: Website hosting, social media ads, business cards, that sponsored post you paid for.
- Travel expenses: Airfare, hotels, rental cars for business trips.
- Retirement contributions: SEP IRAs max out at $70,000 for 2025 (or 25% of compensation, whichever is less). Solo 401(k)s allow $23,500 in employee deferrals plus employer contributions up to $70,000 total.
The key is documentation. Document everything!
For every deduction, you need a receipt showing the date, amount, vendor, and what you bought. For expenses over $75, you need a detailed receipt. No receipt? No deduction.
Step 5: Set up monthly money dates

I know, I know. Looking at your financial statements sounds about as fun as getting a root canal.
But spending a couple of hours each month on your books will save you days of panic at tax time. Here's the monthly routine I recommend:
- Reconcile your bank accounts. Make sure everything in your accounting software matches your actual bank statements. This catches errors and spots potential problems early.
- Categorize all transactions. Don't let them pile up. Future you will hate the present you if you have to categorize 500 transactions in March. Ask me how I know…
- Review your profit and loss statement. Are you making money? Where are you spending the most? Any surprises?
- Scan and file receipts. Use your phone to snap photos and attach them to transactions in your accounting software. According to Neat, the IRS accepts photos for documentation, so it’s best to snap pictures before the ink fades!
- Update your mileage log. If you're using the standard mileage rate, you need detailed records of business trips.
- Check accounts receivable. Who owes you money? Follow up on overdue invoices.
A side benefit of this monthly check-in is that it also helps you make better business decisions. You'll spot problems faster and understand your cash flow better.
Step 6: Hire a professional to help out
Unless you have a weird love for tax code (and hey, no judgment if you do), you may want to consider finding an accountant and hiring help.
A good accountant costs money upfront, but usually saves you more than they cost. They find deductions you'd miss, keep you compliant, and handle the paperwork. The average cost for a sole proprietor is $192 to $750. S Corporations run $913 to $1,850 or more.
When you're interviewing accountants, ask these questions:
- How many clients do they have with businesses like yours?
- What's included in their base fee?
- Do they charge extra for disorganized records? (They do, and it's usually around $166.)
- Can they represent you if you get audited?
- Are they available outside tax season for planning help?
Look for a CPA (Certified Public Accountant) or EA (Enrolled Agent). Both can represent you before the IRS. CPAs have broader accounting expertise. EAs specialize in taxes and are often less expensive.
If it’s too late in the year to find a pro, here’s some steps you can take:
- File for extension immediately (Form 4868)
- Pay estimated taxes owed to avoid penalties
- Sort documents by category, not chronological order
- Focus on the largest deductions first
- Call an accountant today, not tomorrow
Step 7: File your taxes
Once everything is organized and your forms are filled out, it's time to actually file.
- Sole proprietors use Schedule C with Form 1040. You'll also file Schedule SE for self-employment tax.
- S Corporations file Form 1120-S and provide Schedule K-1s to shareholders.
- Partnerships file Form 1065 with Schedule K-1s for partners.
- C Corporations use Form 1120.
If you have employees, you'll also file quarterly Form 941s and annual Form 940.
You can file electronically through accounting software, tax software, or your accountant. Electronic filing is faster, more accurate, and you get confirmation the IRS received it.
What could go wrong (and how to avoid it)
Let's talk about mistakes that you might want to avoid. After all, learning from other people's errors is way cheaper than making them yourself.
- Mixing personal and business money will attract an audit. The IRS gets suspicious when they can't tell what's a business expense and what's your grocery run.
- Missing estimated payments triggers underpayment penalties at about 7% to 8% annually. Make those quarterly payments or face the consequences.
- Not keeping receipts means you can't prove your deductions. The IRS might disallow them entirely.
- Claiming your business as a hobby happens when you show losses year after year. The IRS wants to see profit three out of five years. Otherwise, they'll reclassify you as a hobby and disallow your deductions.
- Using round numbers screams "I'm guessing." Always use exact amounts, down to the cents.
Additional tips and suggestions for staying organized
Okay, admittedly, this was more for me than anything else. But, because I want to help where I can, these ideas might help you, too. Here’s what I’m doing to ease the tension about tax season:
- Start a stress journal. Track what makes you anxious about your business finances. Patterns emerge, and you can fix the root problems.
- Set up automatic bank feeds. Let technology do the boring work of importing transactions.
- Review your business structure annually. Would you save money as an LLC instead of a sole proprietor? Ask your accountant.
- Pay yourself properly. If you're an S Corp, you need to pay yourself a reasonable salary. Taking only distributions can trigger audits.
- Keep learning. Tax laws change. The 2025 changes are significant, but there will be more updates. Stay informed, or pay someone to stay informed for you.
Stay organized and reduce tax season stress
Tax preparation doesn't have to be the worst part of owning a business. With good systems, consistent effort, and maybe some professional help, you can file accurately and keep more of your hard-earned money.
The 2025 tax year brings real opportunities, especially with restored bonus depreciation and doubled Section 179 limits. If you need equipment, furniture, or technology for your business, now is the time to buy it and deduct it.
Start organizing now, not in March when you're panicking. Your January self will thank your November self for being so responsible.
And remember: A large percentage of small business owners hire tax help. You're not admitting defeat by getting assistance. You're making a smart business decision so you can focus on what you do best instead of wrestling with tax forms.
Now, if you'll excuse me, I need to go categorize some transactions before I conveniently "forget" about them again.






