Maximizing Your Solo Business Tax Strategy Before Year-End
With roughly two months remaining in the 2026 tax year, solo entrepreneurs have a critical window to make strategic decisions that can significantly influence their tax liabilities. Once December 31 passes, many tax-related choices become irreversible. This limited timeframe allows for timing purchases, funding retirement accounts, organizing contractor documentation, and ensuring you avoid penalties from underpayment during the year.
This year is particularly noteworthy due to substantial changes introduced by the tax law signed on July 4, 2025, officially known as the Working Families Tax Cuts. This legislation, colloquially called the One Big Beautiful Bill, has rewritten several tax rules affecting solo founders, freelancers, and small online businesses. Some provisions apply for the first time to payments made in 2026, making it essential for US-based solo operators to revisit their year-end tax planning. The advice here serves as a framework for productive conversations with your accountant, considering your entity type, income, and state-specific rules.
Close Your Books Before You Make Any Decisions
Accurate year-end planning starts with a clear understanding of your current financial position. Before making purchases or contributing to retirement accounts, update your bookkeeping through October. Reconcile all business bank and credit card accounts, categorize any transactions in suspense, and gather receipts for significant expenses. Then, build a projection for November and December based on signed contracts, expected invoices, and upcoming costs.
This projection provides an estimated profit for the year, which is crucial for informed decision-making. For example, a founder on track for a strong year has different tax planning options compared to one experiencing a slower period. Estimating inaccurately can lead to unnecessary expenses or missed opportunities for tax savings. For those interested in a deeper dive into how the new law affects business provisions, the IRS has published a recorded webinar on their official YouTube channel.
Check Your Estimated Tax Position Now, Not in April
Most solo entrepreneurs do not have tax withheld by an employer, placing the onus on them to pay estimated taxes throughout the year. According to the IRS’s estimated taxes guidance, underpayment penalties are generally avoided if you owe less than $1,000 after withholding and credits, or if you have paid at least 90% of your current year’s tax or 100% of the previous year’s tax, whichever is lower. Special rules apply to higher-income taxpayers, so be sure to verify your thresholds.
By comparing your tax projection against payments already made, you can adjust your final estimated tax payment accordingly. If your income increased during the year, earlier payments may have been too low, and the year-end payment is your last chance to avoid penalties. Conversely, if you’ve overpaid, you can redirect funds to business growth opportunities. Addressing this in October is far preferable to discovering surprises during tax filing season.
Time Equipment Purchases Around When They Go Into Service
One of the most impactful changes in the new tax law is the reinstatement of full expensing for many business assets. The IRS states that there is now a permanent 100% additional first-year depreciation deduction (often called bonus depreciation) for qualified property acquired after January 19, 2025. Additionally, the Section 179 expensing limit has increased to $2,500,000 for property placed in service in tax years starting after December 31, 2024, with adjustments for inflation in subsequent years.
For solo businesses, this means that planned purchases—such as computers, cameras, or studio equipment—should ideally be both purchased and placed into use before December 31 to maximize deductions in the 2026 tax year. However, the IRS’s guidance for gig economy workers reminds taxpayers that for certain property, including vehicles and some computers, business use must exceed 50% to claim the full deduction on the business-use portion in the first year.
Importantly, this strategy only makes sense for equipment you genuinely need. Spending money solely to reduce tax liability is counterproductive. Keep detailed records of purchase dates and usage, and consult your accountant to determine whether expensing immediately or depreciating over time is more advantageous.
Use the Retirement Plan Window While It’s Open
For profitable solo founders, retirement plans often represent the single largest tax-saving opportunity, while also building long-term wealth. In 2026, the IRS has increased the 401(k) elective deferral limit to $24,500, with catch-up contributions rising to $8,000 for those 50 and older, and $11,250 for participants aged 60 to 63. The IRA contribution limit has increased to $7,500, and the total defined contribution plan limit is now $72,000.
Solo business owners can often contribute in two capacities within a one-participant 401(k) plan: as an employee through elective deferrals and as an employer with nonelective contributions, subject to overall limits and specific calculations for self-employed individuals. Alternatively, a Simplified Employee Pension (SEP) plan is a simpler option. According to the IRS, a SEP plan can be established as late as the business tax return due date, including extensions, with contributions of up to 25% of compensation.
Because deadlines and paperwork vary by plan type, don’t wait until December’s final week. Engage your plan provider or accountant in November to determine which plan best suits your needs, what must be established by year-end, and what can wait until tax filing. Establishing retirement savings habits now can profoundly affect both your personal finances and the trajectory of your business growth. For more on how personal finance habits influence entrepreneurship, see this resource.
Get Ahead of Contractor Paperwork
If you engage freelancers, designers, editors, or developers, the new law will affect your January reporting requirements. The IRS has raised the Form 1099-NEC reporting threshold to $2,000 for payments made in 2026, up from the longstanding $600 threshold. This threshold will be subject to inflation adjustments starting in 2027. As a result, some smaller contractor payments will no longer require reporting.
However, this increase in threshold should not lead to lax recordkeeping. You still need to track total payments to each contractor to determine who crosses the reporting threshold. Additionally, a 1099-NEC must be filed for any contractor from whom you withheld federal income tax under backup withholding rules, regardless of the payment amount. A smart year-end practice is to generate a payee report now, collect missing W-9 forms while contractors are responsive, and correct any inaccurate names or Tax Identification Numbers before the January filing rush.
If you have a system for managing contracts and payments without a team, consider integrating W-9 collection into contractor onboarding for smoother compliance next year. Learn more about managing contracts and payments as a solo founder here.
Know What Payment Platforms Will Report About You
Many online businesses receive income through payment platforms and marketplaces, which have updated reporting requirements. The IRS has retroactively reinstated the Form 1099-K reporting threshold for third-party settlement organizations to $20,000 in payments and 200 transactions per year. Platforms must issue a 1099-K only when both criteria are met.
It is essential to understand that you must report all income on your tax return, regardless of whether you receive a 1099-K or other informational forms. Changes in reporting thresholds affect the paperwork you receive, not your tax liability. Keep meticulous records of all revenue streams, including smaller platforms that may not issue tax forms, to ensure your tax filings accurately reflect your business income.
Don’t Leave the Qualified Business Income Deduction to Chance
Owners of sole proprietorships, partnerships, and S corporations have benefited from the qualified business income (QBI) deduction since its introduction for tax years after 2017. The new tax law has made this deduction permanent. The IRS states that eligible taxpayers may deduct up to 20% of their qualified business income, subject to limits. This deduction is available whether you itemize or take the standard deduction. For tax years beginning after 2025, the IRS also implemented a minimum deduction threshold for active qualified business income. Income earned as a C corporation or as an employee does not qualify.
The QBI deduction depends on taxable income, business type, and for higher earners, factors such as wages paid and property owned. This complexity underscores why it should be part of your year-end tax planning conversations. Your income projection, retirement contributions, and equipment purchases can all affect your taxable income and, consequently, the amount of QBI deduction you can claim.
Set Up 2027 Before the Year Even Starts
One of the smartest year-end tax moves is preparing for a smooth 2027. Start by opening a separate account dedicated to tax savings if you don’t already have one. Deposit a fixed percentage of every payment received into this account to build a reliable tax reserve. Mark your calendar with quarterly estimated tax payment due dates to avoid late penalties.
Choose a bookkeeping tool that fits your workflow and commit to monthly reconciliations rather than scrambling during December. Scheduling a mid-year 2027 planning session with your accountant can help you adjust course based on real-time financial insights.
While these steps may seem mundane, disciplined tax and financial management differentiate businesses that grow intentionally from those continually surprised by their numbers. Investing focused time on these year-end tax moves in the coming weeks, armed with your projections and questions, will position you for increased cash flow, fewer surprises, and a clearer understanding of your business’s true earnings.
For additional guidance on paying yourself as a business owner, see Here.
