Have you ever been hit with a surprise tax bill in April and wondered what you could have done differently?
Are you scrambling every December to make last-minute tax moves while juggling holiday chaos, client demands, and family time?
Year-end tax planning doesn't have to feel like a frantic scramble. But it does require starting earlier than most business owners think and knowing which moves will actually lower your bill.
At Patrick Accounting, a Memphis-based accounting firm, we've guided hundreds of service business owners through Q4 planning, from law firms, architects, and medical practices to electricians, plumbers, and salon owners.
In this article, you'll get a month-by-month Q4 action plan to help you avoid tax surprises and make smart moves before December 31. You'll learn when to start, which equipment purchases make sense, how to time expenses, what's changed for 2026, and which documents to gather before the holidays hit.
The Short Version:
The best time to plan for taxes was January (and the rest of the year), but Q4 still gives you real options. Start with a year-to-date tax projection, then decide on equipment you were already planning to buy (100% bonus depreciation is back, as long as it's in service by December 31), time your prepaid expenses, and check your retirement and HSA contributions while you still have paychecks left. Collect W-9s now. For 2026 payments, the general Form 1099-NEC reporting threshold for contractor services is $2,000, up from $600. Exceptions apply based on the contractor’s tax classification, payment method, and backup withholding.
Why You Shouldn't Wait Until Q4 to Plan for Taxes
If you're just now thinking about year-end taxes, you're in good company. But by October, some of your best tax-saving opportunities have already passed. Proactive tax planning should start in January, not October. Owners who plan throughout the year have more ways to lower their tax bill than owners who wait until December.
Even so, Q4 isn't too late. The key is to act now, not wait until mid-December, when your options shrink fast.
How Do You Start Year-End Tax Planning?
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Start with a projection. Your tax bill is tied directly to your profit, so you need this number first.
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Identify gaps. Have you set aside enough for taxes? Are you on track with retirement contributions? Did you fund your HSA?
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Make final moves. Time equipment purchases, prepay certain expenses, or make last-minute retirement contributions.
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Look ahead to next year. Good year-end planning keeps you from scrambling again 12 months from now.
Tax time shouldn't be a surprise. If you own a service business, let's see if our year-round support is a fit. → Let's grab 30 minutes together.
Should You Buy Equipment Just to Lower Your Taxes?
Buying equipment is the most misunderstood year-end tax strategy. You've probably heard it: "Go spend money to lower your taxes!" The problem is that you're still spending the money.
If you spend $60,000 on a truck and save $15,000 to $20,000 in taxes, the truck still costs you $40,000 to $45,000 after those tax savings. Your actual deduction depends on the vehicle and how you use it for business. Unless your business needs that truck, you'll come out behind.
How to Know If a Year-End Equipment Purchase Makes Sense
A year-end purchase is a smart move when it meets three criteria:
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You were planning to buy it anyway. If you'd need it in January or February, moving the purchase into December can help your tax timing.
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You can place it in service before December 31. Ordering it isn't enough. It needs to be installed and ready to use.
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Your business genuinely needs it. It should support revenue, improve efficiency, or replace aging equipment.
We have an optometrist client who's mastered this. Every year, we talk through what equipment he plans to upgrade and make sure purchases happen before year-end when it makes sense operationally and for taxes.
What Changed with Bonus Depreciation for 2026?
Qualifying equipment may be written off in the first year through Section 179 expensing or bonus depreciation, instead of being spread over several years. Thanks to the One Big Beautiful Bill Act, 100% bonus depreciation is back and permanent for most qualifying property acquired after January 19, 2025. Some states don't follow the federal rules, though, so your state return may look different. The IRS covers the details in Publication 946.
Key takeaway: Don't buy something you don't need just to lower your tax bill. But if you DO need it, the timing is important.
Should I Prepay Business Expenses Before Year-End?
If your business uses cash-basis accounting for tax purposes, you generally deduct expenses when you pay them, not when you incur them. Prepaid expenses can have additional rules. To lower this year's taxable income, consider paying these before December 31:
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Insurance premiums if your renewal falls in January
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Marketing costs for a planned Q1 push
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Equipment maintenance scheduled for January
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Professional services, like annual retainers or subscriptions you'd pay anyway
Some prepaid expenses qualify for an immediate deduction under the 12-month rule, while others must be deducted over the period they cover. Prepaying rent or another expense does not automatically make it deductible this year, so check with your accountant before prepaying anything large.
When to Hold Back on Year-End Expenses
If you expect a better year next year, consider waiting until January to pay certain bills. You'll take the deduction in the year you're in a higher tax bracket, when it's worth more.
Curious which write-offs could ease your Q4 tax crunch → Download the free Business Owner's Guide to Common Tax Deductions
Are You Missing Out on Retirement and HSA Tax Deductions?
In year-end planning meetings, we always ask: "Are you on track to max out your retirement contributions?" You'd be surprised how often the answer is, "I don't know."
Depending on your plan, you may be able to make substantial tax-deductible contributions to a 401(k), Solo 401(k), SEP IRA, or SIMPLE IRA. Eligible pretax or deductible contributions reduce your current taxable income; Roth contributions do not. Limits vary by plan type and adjust every year, and our business retirement plan options guide compares them side by side.
If you have HSA-eligible health coverage and meet the other eligibility requirements, consider funding your HSA too. Eligible personal contributions are generally deductible, earnings grow tax-free, and withdrawals for qualified medical expenses are tax-free.
Retirement Contribution Deadlines to Know
Deadlines depend on the plan and contribution type. Some contributions can be made by your tax filing deadline, including extensions where allowed. To increase employee 401(k) deferrals through payroll, adjust your remaining paychecks this year; you generally can't retroactively defer wages already paid. Special rules can allow later first-year Solo 401(k) deferrals for a sole proprietor with no other employees. You can generally make eligible HSA contributions through your individual tax filing deadline, without extensions.
What Tax Documents Should You Gather Before December 31?
Skipping the paperwork now is the quickest way to make January through April miserable. Start gathering these:
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W-9s from all contractors. For 2026 payments, you generally must issue Form 1099-NEC for reportable contractor payments of $2,000 or more, up from $600. You must file the forms with the IRS and send copies to contractors by February 1, 2027.
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Insurance information, including workers' comp, health insurance premiums, and business policies.
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Mileage logs showing the date, miles, start and end locations, and business purpose for each trip. If you haven't been tracking, start now with an app like MileIQ or Ramp. Logs rebuilt from memory are hard to defend in an audit.
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Owner health insurance premiums. If you're self-employed, you usually deduct these on your personal return, depending on your business structure.
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Personal use of business vehicles. Track personal use so your accountant can calculate any taxable employee benefit or adjust your deductible vehicle expenses.
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Uncollectible receivables. If you use accrual-basis tax accounting, ask your accountant whether unpaid invoices previously included in taxable income qualify for a bad-debt deduction.
Update Your Bookkeeping for the 2026 Meal Rules
Starting in 2026, employers generally can no longer deduct office snacks and breakroom coffee provided as de minimis fringe benefits, or meals provided for the employer’s convenience, such as qualifying overtime meals. Limited exceptions apply. Holiday parties and similar recreational or social events primarily for employees generally remain 100% deductible; an ordinary company-wide working lunch does not automatically qualify. Qualifying client business meals generally remain 50% deductible. If these all sit in one expense category, split them out before year-end.
How Should You Handle Bonuses and Owner Pay at Year-End?
For cash-basis businesses, deductible bonuses generally count in the year they are paid. Accrual-basis businesses may be able to deduct qualifying bonuses paid within 2½ months after year-end on the prior year’s return, but the liability must meet year-end requirements, and special rules apply to related-party and owner bonuses.
If you work in your S-Corp, you need to pay yourself a reasonable salary before taking profit distributions. Planning that mix affects your tax bill. Make these decisions before your December payroll runs, because once the year closes, your options get much more limited.
What Happens If You Wait Until Q4 to Plan for Taxes?
We regularly see new clients come to us in October or November, and when we ask, "Have you been setting aside money for taxes?" the answer is often, "Well, not really."
Now they're facing what we call the double whammy: They need to find $50,000 for this year's tax bill while also starting to save for next year's. When this happens, it's stressful, it strains cash flow, and it's completely avoidable.
If that's you, get an accurate projection, make a plan to cover it, and set aside a percentage of every deposit in a separate tax savings account so you're never behind again. It's one of the core habits of Profit First, and here's how much small businesses should set aside for taxes if you're not sure where to start.
Your Q4 Tax Planning Checklist, Month by Month
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When |
What to Do |
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October |
Schedule your year-end planning meeting. Review your year-to-date profit and loss statement and calculate your tax projection. |
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November |
Decide which early-2027 equipment purchases to move up (if any). Check retirement and HSA contributions and adjust payroll deferrals. Start collecting W-9s. Split employee meals into the right expense categories. |
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December |
Place any new equipment in service by December 31. Pay any expenses you're accelerating. Run bonuses through payroll. Review uncollectible receivables for qualifying bad-debt deductions if you use accrual-basis tax accounting. |
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January 15, 2027 |
Final 2026 estimated income tax payment due for individuals, including many owners of pass-through businesses. |
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February 1, 2027 |
File and furnish Forms 1099-NEC for reportable 2026 contractor-service payments, generally $2,000 or more. |
If you're reading this in November or December, start with the month you're in and pull forward anything you've missed.
How to Move from Scrambling to Strategic Tax Planning
Year-end tax planning feels overwhelming when it all lands in December. Spread across the quarter, it's manageable.
The goal is to avoid the April surprise, keep more of what you earn, and stop starting every year behind. Start your tax planning in January next year, and Q4 will be about small adjustments instead of big surprises.
At Patrick Accounting, we work with law firms, architects, medical practices, home service trades, salons, and other service businesses nationwide to simplify their financial complexities so they have the opportunity to thrive.
If you're wondering why your accountant has never walked you through any of this, read "Why Your Annual Accountant Isn't Saving You Money on Taxes" to see what proactive tax planning should look like.
Year-End Tax Planning FAQs
What's the 1099 threshold for 2026?
For 2026 payments, the general Form 1099-NEC reporting threshold for contractor services is $2,000, up from $600 for 2025. Many Form 1099-MISC categories also increase to $2,000, but not all: royalties generally remain reportable at $10, and gross proceeds paid to attorneys generally remain reportable at $600. Reporting also depends on the payment type, recipient’s tax classification, payment method, and any backup withholding.
Is bonus depreciation still 100%?
Yes. The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for most qualifying property acquired after January 19, 2025. Some states don't conform, so your state deduction may be smaller.
Does equipment have to be in use by December 31 to count this year?
It must be placed in service by December 31 to qualify for a deduction that year for a calendar-year business. That means it must be ready and available for its intended business use; you don't necessarily have to have started using it. Ordering it in December isn't enough.
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