It is November, your business has earned a profit, and you are considering a purchase or an extra owner withdrawal. The bank balance looks healthy. What you cannot confidently answer is how much of that cash you will need for taxes.
A year-end tax projection estimates your annual tax liability using current financial information and assumptions about the remaining months. Unlike a filed return, it can help you evaluate decisions before they happen.
Effective year-end tax planning for small business owners connects that estimate with personal income, payments already made, and cash needs. A useful review should leave you knowing what the numbers mean and what to do next. Start with these five questions.
Your projection should begin with current records and realistic expectations for the rest of the year. An estimate built on incomplete books can miss both income and deductions.
Ask which month has been reconciled and whether the figures include recent payroll, loan activity, large purchases, and unusual transactions. Then discuss what is likely to happen before December 31: outstanding customer collections, new contracts, scheduled expenses, or changes in staffing.
Revenue, taxable profit, and available cash measure different things. A strong sales month does not tell you the tax due, and a bank deposit is not necessarily taxable income. Loan proceeds, for example, need different treatment from customer payments.
Your accounting method also matters. Under the cash method, income generally counts when actually or constructively received, including when it is available without restriction. Accrual accounting uses different recognition rules. Your CPA should apply the appropriate method rather than assume every invoice or payment falls into the same tax year. IRS Publication 538 explains these distinctions.
Ask for the assumptions behind the number. If a major customer payment moves or an expected expense changes, you should know whether the projection needs another look.
For many owners, business results are only one part of the tax calculation. A useful business tax projection should identify which taxes belong to the business and which affect your individual return.
Sole proprietors generally report business income on their personal returns. Partnerships and S corporations generally pass income and other tax items through to owners. A C corporation has a separate federal income tax calculation, while an owner’s wages or dividends can affect their personal return. An LLC’s tax treatment depends on its classification, not simply the letters in its name. The IRS overview of business income explains these differences.
Share relevant changes outside the business, including a spouse’s wages if you file jointly, investment gains, rental activity, income from another business, and changes in deductions or credits.
Do not assume that the amount withdrawn from the business equals the income taxable to you. Distributions and the separate items reported on a Schedule K-1 require appropriate treatment.
Give your CPA the full picture. A projection that excludes a significant household income change may leave you with an incomplete estimate, even when the business books are accurate.
The projected annual liability is not necessarily the amount you still need to pay. Your review should reconcile that estimate with applicable credits, withholding, and estimated tax payments already made.
Consider this hypothetical: Your projected federal tax liability, after applicable credits, is $40,000. You have paid $28,000 through withholding and estimated payments. That suggests a $12,000 funding gap before further adjustments, including any remaining withholding.
That calculation helps you plan cash. It does not establish when payments are due, whether earlier payments were sufficient, or what you owe separately to a state or through a business entity.
Federal income taxes operate on a pay-as-you-go basis. The IRS guidance on withholding and estimated tax explains that an underpayment in a payment period can create a penalty even if the final return shows a refund. A payment made in November does not automatically eliminate an earlier shortfall.
Ask for both a reserve recommendation and a tax payment schedule. Keep the payment confirmations available, and confirm which taxpayer and tax year each payment belongs to. Cash sitting in a savings account is available for taxes, but it has not yet been paid to the tax authority.
A proposed decision should be evaluated for its tax effect, cash cost, and business purpose. Lowering taxable income is useful only when the wider financial consequences make sense.
A deduction reduces the income subject to tax; it does not reimburse the entire purchase price. Buying equipment you do not need can leave the business with less cash for payroll, suppliers, or an unexpected slowdown.
Year-end tax planning for small business owners becomes more useful when the CPA compares specific alternatives.
Proposed decision | Tax question | Cash or business question |
Buy necessary equipment | What deduction is available, and when would it apply? | Is the equipment needed now, and how will payment affect reserves? |
Make a retirement contribution | What is permitted and deductible under the applicable plan? | Can you fund it while meeting business and personal commitments? |
Change the timing of an expense or receipt | Does the accounting method permit the intended treatment? | Would the change affect customers, suppliers, or near-term cash? |
For retirement contributions, confirm eligibility, plan terms, employee obligations, and deadlines. The IRS guide to retirement plans for small businesses describes different rules for different arrangements.
Ask your CPA to compare the expected 2026 and 2027 effects where appropriate. For the wider budgeting and operational context, DWG’s guide to year-end financial planning provides a broader framework.
Review the alternatives before committing cash. Sometimes proceeding is sensible; sometimes retaining flexibility has greater value.
A year-end tax review should produce a short action plan with responsibilities and dates. Knowing the estimated bill is helpful; knowing what to do about it makes the review actionable.
For each agreed step, record the decision, responsible person, supporting documents, applicable deadline, and next review date. If you are considering a purchase, for example, identify who will confirm the tax treatment and who will check the cash available.
Bring the following to your planning discussion:
December 31 is not a universal deadline. Plan establishment, contribution elections, funding, estimated payments, and return filings can follow different schedules. Ask which actions apply to you and which require coordination with a payroll provider or plan administrator.
Agree on what would trigger an update: an unexpected contract, a major expense, an investment sale, or a household income change. Set the next check-in while everyone has the same information.
Year-end tax planning for small business owners works best when the estimate leads to practical decisions about payments, reserves, and proposed changes. The goal is to understand your position well enough to act with confidence.
DWG CPA PLLC’s business tax planning and preparation services support proactive planning alongside compliance. With an emphasis on timeliness, responsiveness, and accuracy, DWG can help you review business decisions alongside relevant personal tax considerations, within the scope of your engagement.
Understand your projected tax position before making your next year-end decision. Explore DWG’s tax planning packages to find the level of support that fits your needs.
If you’re building something important and need a trusted financial partner to grow with you – we’d love to hear from you.
DWG CPA PLLC is a Texas-based accounting firm serving businesses and nonprofits since 2005. We specialize in virtual accounting, tax strategies, and personalized financial guidance across industries like healthcare, construction, real estate, and nonprofits.
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