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Tax planning isn’t something most small business owners think about in July — but it probably should be. Between managing clients, paying staff, and keeping the lights on, taxes tend to fall into the “I’ll deal with it in April” category. The problem? By April, most of your planning opportunities for that year are already gone.
This FAQ covers the questions Steingard Financial hears most often from small business owners — from what tax planning actually means to which deductions you’re likely leaving on the table.
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What Is Small Business Tax Planning — and How Is It Different from Filing?
Tax filing is the paperwork you submit to the IRS by a deadline. Tax planning is everything you do before that to legally reduce what you owe.
Filing is reactive. Tax planning is strategic and ongoing. It looks at your income projections, business structure, retirement contributions, deductible expenses, and the timing of key purchases — all with the goal of minimizing your tax liability across the entire year, not just in Q1 of the following year.
Think of it this way: your accountant files your taxes. Your financial advisor — or a dedicated tax planner — helps you structure your finances so there’s less to owe in the first place. Those are two very different conversations.
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When Should I Start Tax Planning for My Business?
Now — regardless of what month it is.
Effective small business tax planning happens year-round. Key touchpoints include:
- January–March: Review the prior year, set estimated payment schedules, adjust withholding if applicable
- April–June: Q1 review; assess whether your entity structure still makes sense as income grows
- July–September: Mid-year check-in; accelerate deductions if you’ve had a strong first half
- October–December: Final push — max out retirement contributions, make equipment purchases, plan around Q4 income
If you only think about taxes during tax season, you’re leaving money on the table every single year. The most powerful strategies require lead time.
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What Business Expenses Can I Deduct?
This is the question we hear most. The short answer: any ordinary and necessary expense for your business. The longer answer involves a few categories worth paying close attention to:
- Home office: If you use part of your home exclusively and regularly for business, a portion of your rent or mortgage, utilities, and internet may be deductible
- Vehicle use: Business mileage tracked with a log — or actual vehicle expenses, whichever benefits you more
- Equipment and technology: Under Section 179, many businesses can deduct the full cost of qualifying equipment in the year of purchase rather than depreciating it over several years
- Health insurance premiums: Self-employed owners may deduct 100% of premiums for themselves and their families
- Retirement contributions: SEP IRA, Solo 401(k), and SIMPLE IRA contributions are deductible and one of the most powerful tools available for reducing taxable income
- Professional services: Accounting, legal, and financial advisory fees tied to your business
- Marketing, software, subscriptions, and travel: All potentially deductible when directly connected to business activity
The key word in all of this is documentation. A deduction you can’t substantiate is a deduction you’ll lose in an audit. Track as you go — not at year-end.
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Which Business Structure Is Best for Taxes?
It depends on your income level, growth stage, and how you pay yourself — but structure has an outsized impact on your annual tax bill.
- Sole proprietorship: The simplest option, but all net income is subject to self-employment tax (15.3% on the first $184,500 of net earnings in 2026)
- Single-member LLC: Same default tax treatment as a sole proprietorship, but with liability protection layered on top
- S-Corporation: One of the most commonly used strategies for reducing self-employment tax. You pay yourself a reasonable salary (subject to payroll taxes) and take additional profit as distributions, which are not subject to SE tax. The annual savings can be meaningful once net income exceeds roughly $50,000–$60,000
- C-Corporation: Subject to a flat 21% corporate rate, but profits distributed as dividends face double taxation. Generally better suited to businesses planning to retain and reinvest earnings over time
Many small business owners are operating as sole proprietors or single-member LLCs when an S-Corp election could save them several thousand dollars per year. This is a conversation worth having before you assume your current structure is right for where your business is today.
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How Do Estimated Quarterly Taxes Work?
If you’re self-employed or run a pass-through business, no employer is withholding taxes from a paycheck on your behalf. That means you’re responsible for making estimated tax payments four times per year.
Standard due dates:
- April 15 — Q1
- June 16 — Q2
- September 15 — Q3
- January 15 — Q4 of the prior year
The IRS safe harbor rule: if you pay at least 100% of your prior year’s tax liability (or 110% if your AGI exceeded $150,000), you won’t face underpayment penalties — even if you end up owing more at filing.
Underpaying estimated taxes is one of the most common and entirely avoidable problems we see. A solid planning process sets these payments based on real-time income projections, not guesswork.
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What Records Do I Need to Keep — and for How Long?
Strong records are the foundation of both good tax planning and audit protection. At minimum, maintain:
- Bank and credit card statements (business accounts only)
- Receipts for all deductible expenses
- A mileage log with date, destination, business purpose, and miles driven
- Payroll records
- Invoices, contracts, and client agreements
- Tax returns and all supporting documents
How long? The IRS generally has three years to audit a return, but six years if income was substantially underreported — and no statute of limitations applies in cases of fraud. Most advisors recommend keeping records for at least seven years as a practical baseline.
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What Are the Most Common Tax Mistakes Small Business Owners Make?
A handful of patterns show up consistently:
1. Mixing personal and business finances — complicates bookkeeping and makes deductions harder to substantiate
2. Missing estimated quarterly payments — generates penalties even when you pay everything at filing
3. Skipping retirement contributions — a deduction that also builds your future; leaving it on the table is a double loss
4. Not tracking mileage — a simple running log can add up to a meaningful deduction over a year
5. Waiting until tax season to think about taxes — by then, most strategies are off the table
6. Staying in the wrong business structure — paying self-employment tax on income that could have been structured as distributions
The good news: every one of these is fixable, and most are entirely preventable with the right system in place from the start.
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Do I Need a CPA, a Tax Attorney, or a Financial Advisor?
These roles overlap but serve different purposes:
- CPA: Files your returns, handles compliance, and may do some forward-looking planning — but their primary job is accuracy and filing
- Tax attorney: Handles legal disputes, complex business transactions, and IRS negotiations
- Fee-only financial advisor: Looks at the whole picture — investments, retirement accounts, business structure, cash flow, and tax efficiency — as a coordinated strategy rather than a series of separate decisions
The most effective approach is usually a financial advisor and CPA working together. Your CPA knows what happened last year. Your advisor helps you shape what should happen next year.
At Steingard Financial, we work alongside your existing tax professional or can connect you with a vetted CPA from our network — so tax planning becomes one integrated conversation, not a series of disconnected appointments.
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The Bottom Line
Good small business tax planning isn’t about finding loopholes. It’s about using the tools that already exist — deductions, structure, timing, and retirement vehicles — to keep more of what your business earns. The earlier in the year you engage with these strategies, the more room you have to act on them.
If you have more questions or want to see what a proactive tax planning approach could look like for your specific situation, reach out to Steingard Financial. We’re happy to start with a straightforward conversation.
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_This article is for general informational and educational purposes only and does not constitute financial, tax, or legal advice. Contribution limits, tax thresholds, and regulations change from year to year, and any figures cited reflect the rules in effect at the time of writing. Your circumstances are unique — please consult a qualified financial, tax, or legal professional before acting on anything described here._