Tax Planning Strategies for Small Business Owners

Tax preparation is looking backward — it's organizing last year's numbers and filing the required returns. Tax planning is looking forward — it's making strategic decisions throughout the year to legally minimize your tax burden.

Most small business owners only think about taxes when it's time to file. By then, the opportunities for the previous year have already passed. The deductions you didn't take, the entity election you didn't make, the retirement contributions you didn't fund — those decisions were made by default, and they almost always cost you money.

Proactive tax planning starts at the beginning of the year and continues throughout. It's an ongoing conversation between you, your advisory team, and your accountant — adjusting strategy as your revenue, expenses, and business conditions evolve. The difference between reactive and proactive tax management can easily be $10,000 to $50,000 per year for a business earning $200,000 or more. That's not a rounding error.

Your business entity type directly determines how you're taxed — so this is the foundational question. A single-member LLC is taxed as a sole proprietorship by default, meaning all profits are subject to self-employment tax (15.3%) on top of income tax. A multi-member LLC is taxed as a partnership. A corporation can be taxed as a C Corp or elect S Corp status.

The S-Corp election is one of the most powerful tax planning tools available to small business owners. Here's how it works: when you elect S Corp taxation, you pay yourself a reasonable salary (subject to payroll taxes), and remaining profits pass through as distributions — not subject to Social Security and Medicare taxes. For a business earning $200,000 with an $80,000 owner salary, the payroll tax savings on the $120,000 in distributions can exceed $18,000 per year.

The key phrase is "reasonable salary." The IRS scrutinizes S Corp owner compensation, and paying yourself too little will trigger an audit. Work with your advisory team to determine a salary that reflects market rates for your role and industry.

The right time to evaluate your entity structure is before the tax year begins. S Corp elections (Form 2553) must be filed within 75 days of the start of the tax year to take effect for that year (late elections are possible but not guaranteed). Don't wait until December to have this conversation.

The Qualified Business Income (QBI) deduction — made permanent by the One Big Beautiful Bill Act of 2025 — allows eligible pass-through business owners to deduct up to 20% of their qualified business income from their federal taxes. For a business owner with $150,000 in qualified business income, that's a potential $30,000 deduction — reducing the effective tax rate by several percentage points. It's one of the most significant deductions available to small business owners, and a lot of people leave it on the table.

The QBI deduction has income limitations and phase-outs. For 2026, the deduction begins to phase out for single filers above approximately $200,000 and joint filers above $400,000. Above these thresholds, the deduction is limited based on W-2 wages paid and the unadjusted basis of qualified property.

So what does this mean practically? Strategic planning around QBI means understanding where your income falls relative to the thresholds and making decisions accordingly. If you're near the phase-out range, strategies like maximizing retirement contributions, timing income and deductions, or adjusting owner compensation can preserve your QBI eligibility.

Specified service businesses (law, medicine, consulting, accounting, and similar professions) face additional restrictions above the income thresholds. If your business falls into this category, planning becomes even more critical.

Retirement plan contributions are one of the most effective tax reduction tools available — and one of the most underutilized by small business owners. Frankly, it's the area where we see the biggest missed opportunities. The right plan structure lets you defer significant income from current taxation while building long-term wealth.

Solo 401(k): For self-employed individuals with no employees (other than a spouse), the Solo 401(k) allows contributions of up to $24,500 as an employee (2026 limit) plus up to 25% of net self-employment income as an employer contribution. The total combined limit is $72,000 (or $77,500 if you're ages 50–59 or 64+, and $81,250 if you're ages 60–63 under the enhanced catch-up provision). This plan offers the highest contribution limits for sole proprietors and single-member LLC owners.

SEP IRA: Allows employer contributions of up to 25% of compensation (net self-employment income for sole proprietors), up to $72,000 for 2026. SEP IRAs are simpler to administer than Solo 401(k)s but don't allow employee elective deferrals.

SIMPLE IRA: Allows employee contributions up to $17,000 plus employer matching. Suitable for small businesses with employees who want a lower-cost plan option.

Defined Benefit Plan: For high-income business owners, a defined benefit (pension) plan can allow annual contributions exceeding $200,000 depending on age and income. These plans are complex and expensive to administer but offer the highest deduction potential.

The key is matching the plan to your income level, employee situation, and long-term goals. A Solo 401(k) is often the best choice for solopreneurs, while businesses with employees may benefit from a SEP or SIMPLE structure.

Most small businesses are cash-basis taxpayers — which means you have significant control over when income is recognized and when expenses are deducted. That control is leverage. Use it.

If you expect your income to be higher this year than next, consider deferring income (delay invoices to January) and accelerating expenses (prepay rent, insurance, or subscriptions; buy equipment before year-end). If you expect income to be lower this year, do the opposite — accelerate income and defer expenses.

The Section 179 deduction lets you immediately expense qualifying equipment and asset purchases up to $2,560,000 (2026 limit, phasing out at $4,090,000 in total purchases) rather than depreciating them over several years. Bonus depreciation has been restored to 100% for qualifying property acquired after January 20, 2025, providing a full first-year deduction for qualifying assets.

Timing strategies are especially effective in years when you anticipate a significant change — launching a new product, losing a major client, expanding to a new location, or transitioning your entity structure. These are the moments when a little planning goes a long way.

Self-employed individuals and business owners are required to make quarterly estimated tax payments (April 15, June 15, September 15, and January 15). Underpayment penalties apply if you don't pay at least 90% of your current year's tax liability or 100% of last year's liability (110% if your AGI exceeds $150,000).

Look — most business owners either overpay quarterly taxes (essentially giving the government an interest-free loan) or underpay (incurring penalties). Neither is the goal.

A fractional CFO or tax advisor can help you calculate accurate quarterly estimates based on your current-year income trajectory — adjusting each quarter as your actual results come in. This keeps you compliant without tying up excess cash in overpayments.

State estimated taxes add another layer. New York requires quarterly estimated payments for both personal income tax and any applicable LLC or corporation taxes. New Jersey, Connecticut, and Pennsylvania each have their own estimated payment schedules and rules. It adds up fast if you're not tracking it.

Your federal tax strategy is only part of the picture. State tax obligations can significantly shift your overall burden — and the differences between states are more dramatic than most people realize.

New York has a progressive personal income tax topping out at 10.9%, plus New York City income tax of up to 3.876% for city residents. New York also imposes an LLC filing fee based on New York-source gross income, ranging from $0 to $4,500 annually.

New Jersey has a top marginal personal income tax rate of 10.75% and a corporate business tax of 6.5% to 9% based on net income (plus a 2.5% surtax for C Corps with income over $1 million). S Corps pay the corporate tax but are exempt from the surtax.

Connecticut has a top personal income tax rate of 6.99%. Note that Connecticut's former $250 biennial business entity tax on LLCs was repealed in 2020.

Pennsylvania has a flat personal income tax rate of 3.07% — one of the lowest in the Northeast — making it attractive for business owners near the PA border.

Delaware has no sales tax and relatively competitive income tax rates (top rate of 6.6%). For businesses incorporated in Delaware but operating elsewhere, the state's tax advantages primarily apply at the entity level.

Wyoming has no state income tax, no corporate tax, and no franchise tax — making it the most tax-efficient state in the region for pass-through entities.

These differences matter a lot for multi-state businesses and for entrepreneurs deciding where to form their entity.

Bottom line: the most expensive tax strategy is no strategy at all. Every month that passes without proactive planning is a month of missed opportunities — and they don't come back.

At Business Therapy & Advisory, tax planning is built into our advisory approach. We work alongside your CPA to make sure your entity structure, compensation, retirement planning, and timing strategies are all aligned for maximum tax efficiency.

Explore our S-Corp election guidance or schedule a consultation to start building your tax strategy for this year and beyond.