How Can Small Business Owners Lower Their Tax Liability?

The Short Version: 
A lot of small business owners pay more tax than they need to, and it usually comes down to seven things: deductions and credits that never got tracked, a business structure nobody revisited, no control over when income and expenses land, equipment write-offs left unused, profit sitting in a checking account instead of a retirement plan, estimated payments that were never adjusted, and an accountant who only shows up in March. Several rules changed for 2026, and a few moved in your favor.

Are you tired of writing a big check to the IRS every year and wondering whether anything can actually be done about it?

Have you had the thought that you’re running a good business, but something about the tax side isn’t working the way it should?

A lot of small business owners overpay simply because no one has ever sat down and walked them through the alternatives.

Below are seven ways to lower what you owe, what changed for 2026, and how to tell which ones apply to your business.

What Changed for the 2026 Tax Year

A few of these rules moved recently, and some of the advice still floating around is out of date. Here’s where things stand as of the date this article was published:

The depreciation changes are the ones worth knowing about, because the scheduled federal phaseout that used to hang over equipment purchases is gone. More on that below.

1. Capture Every Deduction and Credit You’re Entitled To

This sounds obvious, and it’s still where most of the money goes missing. It’s usually because the records are messy, rather than because anyone decided to skip a deduction.

If you buy software, office chairs, or fuel for the business on a personal card, that can still be a legitimate deduction. But if it never gets tracked into your business books, you eat the cost and get nothing for it. The expense still has to be ordinary, necessary, and properly documented. And if something is partly personal, only the business portion counts.

Credits get overlooked even more often, because owners assume they’re for larger companies:

• If you offer health insurance, there may be a credit available. It’s aimed at smaller employers that meet specific employee-count, wage, premium-contribution, and coverage requirements.
• If you hired eligible workers from certain target groups who started work on or before December 31, 2025, you may still have Work Opportunity Tax Credit available. The credit doesn't currently apply to employees who started after that date, so review this with your tax professional before assuming it applies.
• If you invest in technology, process improvement, or product development, you may qualify for the R&D credit, even if you don’t think of what you do as research.

Every one of these is worth actual dollars. We put together a full guide to the deductions small businesses use most, including what changed for 2026 and where the documentation has to hold up.

2. Check Whether Your Business Structure Still Fits

A lot of owners start as a sole proprietor or single-member LLC and never revisit it. The structure you chose at the beginning is a tax strategy, not just a form you filed once.

If you’re an LLC taxed as a sole proprietor, all your business income passes to your personal return and net earnings from the business are generally subject to self-employment tax. As profit grows, that can get expensive.

An S-Corp can let you split income between a reasonable salary, which carries payroll taxes, and distributions that generally don't. That can save thousands when it’s done correctly, though it isn’t right for everyone. The salary has to be reasonable for the work you actually do, and the savings have to outweigh the added payroll, filing, and state-tax costs. We compared the structures and what each one does to your tax bill separately.

If it’s been more than a year since you looked at this, it’s worth another look.

3. Control When Income and Expenses Land

Here’s a question worth asking yourself: When do you actually recognize income?

On a cash basis, it’s generally when you get paid. Which means you have some control over it. Same with expenses. When you pay for that marketing contract or software license, you may be choosing which tax year it hits, depending on what you paid for and how far ahead you paid it.

Coming off a strong year and expecting a leaner one? It may make sense to delay invoicing into January, or pay legitimate business expenses before year-end. Prepayments have their own rules, so check the timing before assuming the whole cost lands this year. If you expect the opposite, pull income forward instead.

We look at a three-year window with clients: what happened last year, what’s happening now, and what’s coming. Without that context, you’re reacting instead of deciding, and reacting usually costs more.

4. Use Section 179 and Bonus Depreciation on Equipment

When you buy equipment, property, or large assets, you often don’t have to spread the deduction across years.

Section 179 can let you deduct the full cost of qualifying equipment in the year you place it in service, up to $2.56 million for 2026, with the phase-out starting at $4.09 million. Qualifying property can include computers, office furniture, machinery, certain business vehicles, and certain improvements to commercial property. The deduction is also limited by taxable business income, so not every dollar is always available immediately.

Bonus depreciation is now 100% for most qualified property acquired and placed in service after January 19, 2025. That’s a real change. The scheduled phaseout was heading toward zero, which made equipment timing a guessing game. That scheduled phaseout is gone.

The two work together. A common approach is to look at Section 179 first, then bonus depreciation, then regular depreciation on whatever is left. The right order depends on your taxable income, the type of asset, and your state, since some states don’t conform to the federal bonus rules.

One caution. Don’t buy something just for the deduction. Spend $60,000 on a truck to save $15,000 in taxes, and you’re still out $45,000 in cash. Buy it because you needed it, make sure it is in service before December 31 if you want this year’s deduction, and let the tax savings be the bonus rather than the reason.

5. Move Profit Into Tax-Advantaged Accounts

A business makes good money, cash piles up in the operating account, and nobody has a plan for it. That’s a common and expensive pattern.

Retirement accounts are one of the clearest fixes. SEP IRAs, SIMPLE IRAs, and solo 401(k)s can let you put money aside for later and lower your taxable income now, if the plan and contribution are set up the right way. Employer contributions you make for your team are generally deductible too, which makes this one of the most underused moves available to owners.

Municipal bond interest is often exempt from federal tax and can sometimes be exempt from state tax too, which is worth knowing if you’re holding meaningful cash. But that doesn't make every bond the right place for operating cash, so look at the risk, the return, and the cash you may need before you move money.

What’s usually missing is the plan. These decisions tend to happen when someone remembers or a friend brings it up, rather than as part of an annual strategy.

6. Adjust Your Estimated Payments Before They Cost You

Penalties and interest are avoidable, and they happen constantly.

You had a better year than expected and never raised your estimated payments. Nobody flagged it. You assumed you were covered. Then, the bill arrives with a penalty attached.

The fix is forecasting. Look at the year ahead, decide what to pay and when, and adjust as the year moves. That turns a surprise into a decision you already made.

7. Work With Someone Who Plans Instead of Just Filing

There are too many moving pieces here to handle alone, and the gap between a tax preparer and a tax planner is where most of the money sits.

A preparer reports what already happened and makes sure the return reflects it correctly. A planner asks about your goals, your structure, your timing, and what you’re buying next year. One looks backward. The other helps you make decisions while they can still change your bill.

Where to Start Lowering Your Tax Bill

If you read through the seven areas above and recognized two or three, that’s normal. Most owners are leaving something on more than one of them.

The thing they have in common is timing. A lot of the biggest moves on this list have to happen before December 31. By the time a return is being prepared, many of the decisions that would have changed it are already behind you, though some retirement-plan and filing-related moves may still be available after year-end. That’s the real reason tax planning and tax filing aren’t the same job.

At Patrick Accounting, we work with small business owners across the country from our office in Cordova, Tennessee, and this is the conversation we have most. Not about finding a trick, but about making decisions early enough that they count.

Start with the deductions, since that’s where most owners find money first. Our guide to common deductions for business owners covers what qualifies, what changed for 2026, and what documentation you need to keep it.

And if you want someone to look at your situation and tell you which of these seven actually apply to you, let's talk.

Frequently Asked Questions About Lowering Your Tax Liability

What is the fastest way to lower my business tax bill?

Before year-end, the fastest levers are equipment purchases you already needed, retirement-plan contributions, and timing income or expenses across the year boundary. After December 31, many of those windows have closed, but you may still have retirement-plan and filing-related options depending on your business and the type of plan you use.

Is bonus depreciation still available in 2026?

Yes. The One Big Beautiful Bill Act restored 100% bonus depreciation for most qualified property acquired and placed in service after January 19, 2025, and removed the scheduled phaseout. It had been phasing down before that, so older advice may tell you otherwise.

Should I buy equipment just to lower my taxes?

No. A deduction reduces your taxable income, not your cash out the door. Spending $60,000 to save $15,000 still leaves you $45,000 lighter. Buy what the business needed anyway and treat the deduction as a bonus.

Will switching to an S-Corp lower my taxes?

It can. An S-Corp can split income between salary and distributions, so not every dollar is subject to payroll taxes. Whether it works depends on your profit, the reasonable salary you need to pay yourself for the work you do, your state, and the added payroll and filing costs.

When should I start tax planning for the year?

Earlier than most people do. The decisions that move the biggest dollars have to be made before December 31, and several of them take weeks to set up, so planning conversations in the fall are more useful than ones in December. And conversations even earlier in the year are best.