10 Questions Every Business Owner Should Ask Before Year-End

Key Takeaways

• Coordinate year-end tax planning by having your accounting and tax partners review the numbers together before year-end.
• Pass-through owners generally use the federal safe harbors for their individual estimated taxes; C corporations generally pay their own federal estimates.
• A safe harbor can reduce underpayment penalties, but you may still owe a balance due when you file.
• Deferral of income and expenses can change when you pay tax; it does not eliminate taxable income.
• How owners take money out of the entity affects payroll, cash flow, basis, deductibility, and business and personal taxes.
• Turn tax advice into action with a written plan that assigns an owner, deadline, and cash requirement to each step.
• Year-end tax planning for business owners starts with a simple goal: understand what happened this year, what it means for the entity and your personal return, and what you can still do about it. Filing a return only reports the past. The decisions that change the outcome happen before the year closes.

You should not have to decode financial reports or technical tax advice on your own. Your accounting partner, an outsourced advisor who knows your business year-round, should explain the financial story and work directly with your tax partner. These ten questions help you start that conversation.

1. What Happened in My Business This Year, and Why?

Start with the basics. Did revenue, profit, cash, payroll, debt, receivables, or owner distributions go up or down?

Then look for the changes behind the numbers: new customers, pricing changes, added employees, new states or locations, major purchases, unusual expenses, or a large gap between profit and cash. Ask your accounting partner what changed, why, and what may affect taxes or future decisions.

Owner takeaway: You should be able to explain, in plain English, whether the business made money, where the cash went, and what changed.

2. Have I Met With My Accounting and Tax Partners Before Year-End?

Put yourself, your accounting partner, and your tax partner in one meeting. Review current financials, the full-year forecast, owner compensation and distributions, estimated payments, major transactions, and relevant personal income.

Timing matters. Your advisors need time to project the business and personal tax effects, weigh the options, and act before deadlines pass.

Owner takeaway: Your advisors should lead this conversation together and give you one clear view of the decisions ahead.

3. Did I Pay Enough in Estimated Taxes, and at Which Level?

The answer depends on your entity type.

• Pass-through entities: A sole proprietorship, single-member LLC, partnership, or S corporation generally passes taxable income to its owners. The federal safe-harbor rules generally apply to the owner’s individual estimated income taxes, not to a federal entity-level income tax paid by the business.
• C corporations: The corporation generally pays its own federal estimated income taxes. Owners may also need personal estimates for wages, dividends, or other income.

The common federal safe harbors for individuals are 90% of current-year tax, 100% of prior-year tax, or 110% of prior-year tax for certain higher-income taxpayers. The IRS estimated tax guidance explains the details. A safe harbor may reduce underpayment penalties, but you can still owe a balance when you file.

Also review state estimates, pass-through entity tax payments, payroll withholding, and payment timing. Rapid growth can make the original estimates out of date.

Owner takeaway: Your advisors should reconcile what you paid and confirm the individual, entity-level, federal, and state requirements.

4. What Can I Still Defer, Deduct, or Plan Before Year-End?

Ask the practical questions. Can income legally move to a later period? Can a valid expense be paid or accrued sooner? Can compensation, retirement contributions, benefits, equipment purchases, or state tax elections be planned more effectively?

The answers depend on entity type, accounting method, transaction timing, related-party rules, business purpose, available cash, and deadlines. Your accounting partner models the financial and cash impact. Your tax partner confirms the treatment, eligibility, limits, documentation, elections, and deadlines.

Deferral generally changes when you pay tax. It does not make taxable income disappear, and every decision must still make business sense.

5. Are My Advisors Connecting the Financial Results With the Tax Advice?

Your accounting partner should explain the financial results, cash needs, owner activity, and operational changes to your tax partner. Your tax partner should assess the consequences and give clear technical guidance.

Together, they should tell you what the advice means, what it may cost or save, whether it supports your goals, and what must happen next. Your accounting partner then coordinates the accounting, payroll, cash management, and documentation to carry out the plan.

Owner takeaway: A clear bridge between the numbers and the tax advice keeps the guidance accurate, practical, and actionable.

6. Am I Taking Money Out of the Business the Right Way?

Review how money leaves the entity: salary, draws, guaranteed payments, bonuses, distributions, benefits, retirement contributions, and personal expenses the business pays.

Watch for unreasonable compensation, unsupported distributions, payroll errors, insufficient basis, missed benefit reporting, and withdrawals that strain cash. Your accounting partner should show what you took, how it was recorded, and what needs correction. Your tax partner should confirm the treatment, limits, and reporting before the final payrolls of the year.

Owner takeaway: How money leaves the entity affects payroll, cash flow, basis, deductibility, and both business and personal taxes.

7. What Can I Still Do Before My 2026 Returns Are Filed?

Separate the deadlines. Some actions must happen by December 31. Others depend on payroll cutoffs, estimated tax dates, state elections, or retirement-plan deadlines. Some can wait for the return.

Then ask what each action accomplishes. Does it reduce tax, defer tax, avoid a penalty, improve cash timing, or shift tax to the owner? Your accounting partner should keep the action list. Your tax partner should confirm the treatment and deadlines.

Owner takeaway: Knowing each deadline and planning for it is critical.

8. Have I Told My Advisors About Every Major Business and Personal Change?

Business changes include new owners, contracts, locations, states, employees, debt, equipment, acquisitions, dispositions, lawsuits, or a significant shift in profit. Personal changes include additional income, investment gains or losses, a home sale, charitable giving, retirement activity, or a change in residency or family circumstances.

Your accounting partner should ask about these items, update the forecast, and bring the relevant ones to your tax partner.

Owner takeaway: A projection is only as complete as the information your advisors receive.

9. Do I Have the Cash to Pay the Taxes and Carry Out the Plan?

Profit is not cash. Project the cash you need for taxes, payroll, debt service, owner distributions, planned investments, and operating reserves.

Then compare the cash cost and expected tax benefit of each option, such as bonuses, retirement contributions, equipment, or accelerated expenses. Check whether safe-harbor payments still leave a large balance due, and whether the entity must fund owner tax distributions.

Owner takeaway: The lowest projected tax is not always the right answer. A strategy that strains cash or does not support the business is not a good trade.

10. Do I Have One Clear Year-End Plan, and Who Is Accountable for It?

Put the plan in writing. List each action with its rationale, owner, deadline, cash requirement, expected tax effect, and required documentation.

Your accounting partner should maintain the forecast, reconcile payments, and manage the work to completion. Your tax partner should confirm the projected liability, safe-harbor requirements, elections, and limits. The plan should also say what you will not do, why, what remains due, and what carries into 2027.

Owner takeaway: One coordinated recommendation is preferable to disconnected answers.

Final Thoughts and Additional Reading

Business owners should not have to interpret financial reports or technical tax advice alone. Before year-end, ask your accounting partner to lead a planning meeting with you and your tax partner. Leave with one clear plan: what happened, what it means, what you can still do, what the business can afford, and who owns each action.

For more on understanding your numbers and planning ahead, read Why Understanding Your Numbers Is Crucial for Business Owners and Strategic Tax Planning for Founders and Growing Businesses.