Most small business owners think about year-end planning in November. Some wait until December. A few don’t think about it until April by which point it’s not planning at all. It’s just filing.
Here’s the reality: a year-end financial plan built in August is worth significantly more than one built in December. Not because the strategies are different, but because time is the critical ingredient in almost every one of them. Retirement contributions need runway. Equipment purchases need to be placed in service. Entity elections have deadlines. Income timing requires decisions made before the year closes.
By the time November arrives, the menu of options has already narrowed considerably. By December, it’s narrower still.
This blog covers how to build a year-end financial plan that actually produces results, the components it needs to include, the sequence in which to approach them, and why starting in August gives businesses a meaningful advantage over those that wait.
There is a version of year-end planning that happens in a single meeting in late November: the accountant reviews the numbers, identifies a few remaining deductions, makes some adjustments, and the business files in April roughly knowing what to expect.
That version is better than nothing. But it’s not really planning, it’s forecasting with very little time left to act on what the forecast reveals.
Real year-end financial planning is a process that runs from roughly August through December, with distinct phases: assessment, strategy development, implementation, and close. Each phase depends on the one before it. And the businesses that do this well don’t just arrive at a lower tax bill. They arrive at a clearer picture of their financial position, more confident decisions for the year ahead, and a Q1 that starts with momentum rather than scrambling.
The starting point is always the same: knowing where the business actually stands.
Before any strategy can be built, the numbers need to be current and accurate. This means:
Up-to-date books: If the books are more than 30 days behind, everything that follows is built on an unreliable foundation. The first step is getting the books current – reconciled, categorized, and reviewed, before any planning conversation begins.
Year-to-date P&L review: Compare actual revenue and expenses year-to-date against the original projection for 2026. Where are the gaps? Which expense categories have drifted? Is gross margin tracking where it should be?
Cash flow position: What does the current cash position look like, and what are the projected inflows and outflows through year-end? This is particularly important for businesses planning capital expenditures or retirement contributions in Q4.
Tax liability projection: Based on year-to-date income, what does the projected 2026 tax bill look like at current rates, before any additional planning moves? This number anchors the entire planning conversation.
Without this assessment, year-end planning is guesswork. With it, every subsequent decision is grounded in real data.
Retirement contributions are consistently the highest-impact, lowest-complexity year-end tax strategy available to small business owners and they are regularly underutilized.
SEP-IRA: Contributions of up to 25% of net self-employment income can be made up until the tax filing deadline, including extensions. The 2026 limit is $70,000. These contributions are fully deductible, reducing taxable income dollar-for-dollar.
Solo 401(k): For self-employed individuals, the Solo 401(k) allows contributions both as an employee (up to $23,500 in 2026, plus a $7,500 catch-up contribution for those 50 and older) and as an employer (up to 25% of compensation). The combined limit is $70,000. Critically, the plan must be established by December 31 of the tax year, even if the actual contribution can be made later.
SIMPLE IRA: For businesses with employees, the SIMPLE IRA allows employee contributions of up to $16,500 (plus $3,500 catch-up for those 50 and older) in 2026, with mandatory employer contributions.
Defined Benefit Plan: For high-income business owners looking to shelter significantly more than the defined contribution limits allow, a defined benefit pension plan can allow contributions well above the $70,000 ceiling. These plans are more complex to administer but can be extraordinarily tax-efficient for the right profile.
The August action item here is straightforward: calculate how much has been contributed year-to-date, how much room remains under the applicable limit, and whether the cash flow projection supports maximizing the contribution before year-end.
If the business is planning any significant capital purchases – equipment, technology, vehicles, or other qualifying assets, the timing of those purchases relative to December 31 has material tax implications.
With 100% bonus depreciation now permanently restored under the One Big Beautiful Bill Act, the full cost of qualifying assets placed in service before December 31 can be deducted in 2026. There is no partial-year proration for bonus depreciation – an asset purchased and placed in service on December 30 generates the same first-year deduction as one purchased in January.
This means that a planned purchase which is executed before year-end creates a 2026 deduction. The same purchase executed in January creates a 2027 deduction. For businesses projecting a higher tax liability in 2026 than in 2027, accelerating the purchase can produce meaningful tax savings.
Section 179 expensing, which allows up to $1,220,000 in immediate deductions for qualifying equipment in 2026 applies the same logic. The key distinction between Section 179 and bonus depreciation is that Section 179 cannot create a loss, while bonus depreciation can. For businesses in a profitable year, both tools are generally available and can be layered.
The August planning step is to identify any capital purchases that are planned or under consideration for the next 12 months, and evaluate whether accelerating any of them into 2026 produces a net tax benefit.
Entity structure is one of the most impactful tax decisions a business makes and it’s one that has a time-sensitive element in year-end planning.
For businesses operating as sole proprietors or single-member LLCs whose net profit has consistently exceeded $80,000–$100,000, an S-Corporation election may generate meaningful self-employment tax savings. However, an S-Corp election for the 2027 tax year must be filed with the IRS by March 15, 2027. The preparation work – evaluating whether the election makes sense, modeling the tax impact, setting up payroll infrastructure should begin in the fall of 2026.
Similarly, businesses that have grown beyond their current structure, whether that means converting from a sole proprietorship to an LLC, adding a holding company, or restructuring ownership should begin those conversations in Q3 rather than Q4, when implementation timelines become compressed.
For a detailed comparison of entity structures and their tax implications, DWG’s earlier posts on Tax Benefits of Treating Your Business as an S-Corp vs. C-Corp and Tax Strategy Tips for S-Corps, LLCs, and Self-Employed Professionals cover the foundational considerations in detail.
For businesses with some flexibility in when income is received and when expenses are paid, the fourth quarter offers timing opportunities that can meaningfully shift tax liability between years.
Deferring income: If 2026 income is projecting significantly higher than 2027 is expected to be, there may be value in deferring billable work or invoice timing into January. Cash-basis taxpayers recognize income when received, so an invoice sent in late December that is paid in January becomes 2027 income rather than 2026 income.
Accelerating deductions: Conversely, expenses that would otherwise be incurred in early 2027 can sometimes be prepaid or accelerated into December 2026. Prepaid insurance, prepaid rent, subscriptions, and professional development expenses are all candidates for acceleration, subject to the 12-month rule for prepaid expenses.
Managing bonuses: For businesses with employees, bonus payments made by December 31 are deductible in 2026, even if the bonus is earned over the full year. Accrual-basis businesses can deduct bonuses accrued by year-end as long as they are paid within 2.5 months of the year-end.
These timing strategies require genuine flexibility and careful analysis. Not all businesses have meaningful control over when income arrives or when expenses are incurred. But for those that do, the difference between a deduction in 2026 and a deduction in 2027 can be the difference between a manageable tax bill and an unpleasant one.
A clean year-end close doesn’t happen automatically. It is the result of decisions and actions taken in the months before December 31, not in the weeks after.
Reconcile monthly through November: A year-end that follows 11 months of clean reconciliations is orderly. A year-end that follows 6 months of deferred reconciliations is a crisis. The goal is to arrive at December with only one month left to close, not three or four.
Resolve outstanding receivables: Aging receivables that aren’t going to be collected need to be identified and potentially written off before year-end. Bad debt write-offs require documentation — a record of the debt, evidence of collection attempts, and a business decision that the amount is uncollectable.
Conduct an inventory count if applicable: For product-based businesses, a year-end physical inventory count is often required for accurate financial reporting and tax purposes. This takes time to organize and should be planned in advance.
Document everything: Deductions require documentation. Vehicle mileage logs, receipts for meals and entertainment, home office calculations, contractor payments for 1099 purposes, all of these need to be current and organized before the filing season begins.
For a comprehensive year-end bookkeeping checklist, DWG’s earlier post Year-End Bookkeeping Checklist for Small Businesses provides a detailed step-by-step guide.
Year-end financial planning is not a solo exercise. The strategies outlined above – retirement contributions, entity elections, income timing, capital purchase decisions, each require accurate financial data, knowledge of current tax law, and judgment about which levers make sense for a specific business in a specific year.
A CPA who only hears from a client in March is working with historical information. There is nothing left to plan, only to report. A CPA who is engaged through the fall and year-end is working in real time, with the ability to model scenarios, recommend timing decisions, and ensure that the strategies being implemented are actually producing the intended results.
At DWG CPA, year-end planning is not a separate service. It is built into how the team works with every client from Q3 onward – reviewing projections, identifying opportunities, and ensuring that the year closes cleanly and strategically.
For businesses that haven’t yet had this conversation for 2026, August is the right time to start.
Year-end financial planning works best when it starts early. Not because the strategies are complicated, but because time is what makes them executable.
A retirement plan established in August can receive contributions over four months. A capital purchase evaluated in August can be made at the right moment. An entity structure decision explored in August can be implemented before the year-end deadline. These are not details, they are the difference between a tax strategy and a tax payment.
At DWG CPA, the team works with clients through every phase of this process, from mid-year assessment through year-end close, so that the business arrives at December 31 with a clear picture, a clean set of books, and a tax position that reflects intentional planning rather than missed opportunity.
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.
Copyright 2026 Designed & Developed by MYCPE ONE LLC. All Rights Reserved.