How Can I Reduce My Business Taxes Legally Before Year-End?

You can reduce business taxes legally by acting before December 31. Most tax-saving moves only count if they happen within the calendar year. Once the year closes, your numbers are mostly locked in, and you lose the chance to change them.

That is why year-end tax planning matters so much. The right business tax strategies can reduce taxable business income, protect your cash flow, and keep you fully compliant with IRS rules.

Follow these steps to lower business taxes before the books close.

Step 1: Delay Income Into Next Year

If your business uses cash-basis accounting, income counts in the year you receive it. Send invoices in late December so payment arrives in January. That income then moves to next year's return.

This works best if you expect to be in the same or a lower tax bracket next year. If you expect a big jump in income next year, it may be smarter to take the income now. Check your projections before you decide.

Step 2: Prepay Business Expenses

Pay upcoming bills before December 31 instead of waiting until January. This includes rent, business insurance, supplies, and software subscriptions.

Under the IRS 12-month rule, prepaid expenses are usually deductible this year if the benefit lasts no more than 12 months and does not extend past the end of next year. Only prepay expenses you would pay anyway. Spending money just to get a deduction rarely makes financial sense.

Step 3: Buy Needed Equipment Now

Equipment purchases are one of the biggest sources of small business tax savings. Two rules make this possible:

• Section 179 lets you deduct the full cost of qualifying equipment, vehicles, and software in the year it is placed in service, up to an annual limit.

• Bonus depreciation is now permanent at 100% for qualifying property acquired after January 19, 2025.

The asset must be placed in service by December 31. That means it is delivered, set up, and ready to use. Ordering it is not enough.

Step 4: Max Out Retirement Contributions

Retirement contributions lower your taxes and build your savings at the same time. Pick the plan that fits your business:

• Solo 401(k): Best for self-employed owners with no employees. You contribute as both employee and employer.

• SEP-IRA: Easy to set up. Contribute up to 25% of eligible compensation, subject to annual limits.

• SIMPLE IRA: A low-cost option for businesses with employees.

Watch the deadlines. Setting up a Solo 401(k) by December 31 is the safest move, although some sole proprietors may have until their filing deadline for a new plan. A SEP-IRA can be opened and funded until your tax filing deadline, including extensions.

Step 5: Claim Every Deduction You Qualify For

Many owners overpay because they miss deductions they already qualify for. Review these common categories before year-end:

• Home office expenses

• Business use of your vehicle

• Business travel and qualifying meals

• Business insurance premiums

• Marketing, website, and software costs

• Professional fees, licenses, and training

• Health insurance premiums for self-employed owners

Keep receipts and a clear record of the business purpose for each expense. Good records make every deduction easier to defend.

Step 6: Protect Your QBI Deduction

If you own a pass-through business, such as a sole proprietorship, partnership, LLC, or S corporation, you may deduct up to 20% of your qualified business income. This deduction is now permanent.

At higher income levels, limits apply, especially for service businesses like consulting, law, and health care. Retirement contributions or wage adjustments can help keep you under the income thresholds and protect the full deduction.

Step 7: Adjust Your S Corp Salary

S corp owners who work in the business must pay themselves reasonable compensation. Pay too little and you risk IRS penalties. Pay too much and you lose payroll tax savings.

Review your salary before the final payroll run of the year. Changes made after December 31 will not count for this tax year.

Step 8: Hire Your Children

Paying your children for real work shifts income from your higher tax bracket to their lower one. Your business deducts the wages, and your child can use their standard deduction to shelter much of that income.

For sole proprietorships and partnerships owned only by the child's parents, wages paid to children under 18 are generally exempt from Social Security and Medicare taxes. The work must be real and the pay must be reasonable. Keep timesheets and pay through proper payroll.

Step 9: Write Off Bad Debts and Old Inventory

If a customer will never pay an invoice you already reported as income, you may be able to deduct it as a bad debt. This mainly applies to accrual-basis businesses.

You can also write off damaged, obsolete, or unsellable inventory. Document the condition of the items and how you disposed of them.

Step 10: Review the PTET Election

West Virginia allows partnerships and S corporations to elect a pass-through entity tax (PTET). This lets the business pay state income tax at the entity level, which can help owners work around the federal SALT deduction cap.

Whether it saves you money depends on your income and entity type. Review it with your CPA before year-end.

Year-End Mistakes to Avoid

• Buying equipment you do not need just for a deduction

• Missing the placed-in-service deadline

• Mixing personal and business expenses

• Skipping quarterly estimated tax payments

• Waiting until tax season to plan

Get a Year-End Tax Plan Before December 31

Every business is different. The right strategy depends on your entity type, income, and cash flow. A move that saves one business thousands could cost another money.

We Do Taxes is a CPA-led firm helping small businesses in Morgantown, WV, and beyond find legal tax savings before the deadline. We also offer business tax advisory and filing, and Controller and CFO advisory to keep your records clean and ready all year.

Book your free year-end tax planning call today and start next year with a lower tax bill and a clear plan.