As the year winds down, small business owners juggle multiple priorities—from holiday promotions to finishing client projects—while also finding time for family. Amid this year-end hustle, one task stands out: tax planning.
Spending
just a few hours organizing your finances now can save thousands at tax time.
Beyond reducing your tax bill, proper planning strengthens your financial
foundation and sets your business up for growth in the new year.
Review Income and Adjust Withholdings
Begin by
reviewing your income, payroll, and tax withholdings. Changes in revenue, new
hires, or business growth can affect your overall tax obligations.
Money Math
Example:
Monthly business profit: $20,000
Federal tax withholding: $4,000/month
Year-end projection shows $10,000 owed. Increasing withholding by $1,000/month
for the last two months can prevent a tax surprise.
Use the IRS
Withholding Estimator to make sure your numbers align. Reducing withholdings
may free up cash flow if you expect a large refund; increasing them early helps
avoid penalties if you'll owe.
Maximize Retirement Contributions
Retirement
accounts reduce taxable income while building long-term wealth. For 2025:
- 401(k): $23,500
- IRA: $7,000
- Catch-up contributions (age
50+): 401(k) +$7,500; IRA +$1,000
Small
business owners can also utilize SEP IRAs or SIMPLE IRAs, which often allow
higher contributions. Employer-sponsored plans must be funded by December 31,
while IRA contributions are accepted until April 15, 2026.
Money Math
Example:
Contribute $15,000 to a SEP IRA.
Taxable income drops from $150,000 to $135,000, lowering federal tax by about
$3,300-$3,900 depending on your bracket.
Even modest contributions can significantly reduce your tax bill.
Harvest Tax Losses Wisely
If some investments have underperformed, consider tax-loss harvesting. Selling losing assets lets you deduct up to $3,000 against ordinary income, with any remaining losses carried forward.
Avoid violating the wash-sale rule—do not repurchase the same investment within 30 days before or after selling. A financial advisor can help guide this process.
Use Flexible Spending Accounts (FSA) Before They Expire
FSAs follow
a "use it or lose it" policy—funds expire on December 31. Eligible expenses
include:
- Medical co-pays
- Prescriptions
- Dental and vision care
Money Math
Example:
FSA balance: $2,000
Using all funds avoids losing $2,000 in pre-tax dollars, saving about $400-$500
depending on your tax bracket.
Make Charitable Giving Strategic
Year-end
donations can reduce taxable income. Contributions to IRS-recognized 501(c)(3)
organizations made before December 31 are deductible.
- Donate appreciated stock to
avoid capital gains tax.
- Consider a Donor-Advised Fund
(DAF) for added flexibility.
Money Math
Example:
Donation: $5,000 in stock (cost basis $3,000)
Avoid around $400 in capital gains taxes while deducting $5,000 from taxable
income.
Take Advantage of the 0% Capital Gains Bracket
In 2025,
lower-income taxpayers may qualify for a 0% long-term capital gains rate:
- Single: up to $65,025
- Married filing jointly: up to
$124,050
Selling investments held for over a year within these thresholds may yield tax-free gains. Coordinate with your advisor for the best strategy.
Don't Overlook Required Minimum Distributions (RMDs)
If you or
your spouse are age 73 or older, RMDs from traditional retirement accounts must
be taken by December 31. Missing the deadline can result in a 25% penalty.
Consider making a Qualified Charitable Distribution (QCD) by donating up to $100,000 directly to charity—this satisfies your RMD and removes it from taxable income.
Review Business Deductions and Year-End Spending
Strategic
purchases before year-end can reduce taxable income:
- Section 179: Deduct the full
cost of qualifying equipment or technology.
- Prepay expenses like insurance,
rent, or memberships (for cash-basis taxpayers).
- Track all expenses—including
mileage, supplies, and home office use—to maximize deductions.
Money Math
Example:
Purchase $15,000 of qualifying office equipment.
Deduction reduces taxable income by $15,000, saving about $3,300 in the 22%
bracket.
Rebalance Your Investment Portfolio
Market
shifts can move your investments away from your target allocation. Rebalancing:
- Locks in gains
- Reduces volatility
- Keeps your investments aligned with your business and financial goals
Avoid Common Year-End Mistakes
Even the
most organized owners can fall into these traps:
- Missing estimated tax payments
or deadlines
- Mixing personal and business
finances
- Failing to track deductions or
donations
- Overlooking retirement account
beneficiaries
- Waiting until the last minute to
gather documents
Avoiding these mistakes saves time, money, and stress.
Make Tax Planning Year-Round
Treat tax
planning as a year-round habit, not a last-minute chore. Use cloud accounting,
automate expense tracking, and schedule regular CPA check-ins.
Recent
legislative updates—including the "One Big Beautiful Bill Act" and SECURE Act
2.0—provide new opportunities. A financial advisor can help ensure compliance
and maximize your benefits.
Year-end tax
planning isn't just about reducing taxes—it's about gaining clarity,
confidence, and control. Review your finances, maximize deductions, and tackle
key steps before December 31 to start the new year strong.
Contact us today to build a customized strategy that protects your bottom line and supports your business goals.
Sources:
- The Regions Bank 2025 Year-End
Checklist for Small Businesses outlines deductions I https://www.regions.com/insights/small-business/article/2025-year-end-small-business-checklist
- CLA (CliftonLarsonAllen LLP)
provides a detailed list of year-end business tax planning strategies for
2025 I https://www.claconnect.com/en/resources/articles/25/year-end-business-tax-planning
