Think your Roth IRA lowers your taxes this year? It doesn't, because contributions aren't deductible, and here is who should use it now

For a small business owner, tax planning is not just something to think about when a return is due. The decisions made throughout the year can determine how much taxable income remains at the end of it.

Two tools matter most; deductions and tax credits. They work differently, and confusing the two can lead to missed opportunities.

A tax deduction reduces taxable income. A tax credit reduces the tax itself. For example, a $2,000 deduction would reduce taxable income by $2,000. At a 22% tax rate, that could produce about $440 in federal tax savings. A $2,000 credit, by contrast, can generally reduce the tax bill by $2,000, subject to the particular credit's rules.

Which small business expenses can actually be deducted?

The basic rule is that an expense generally needs to be ordinary and necessary for the business. That covers a much wider range of costs than office rent alone.

Self-employed workers may be able to deduct qualifying health insurance premiums. Businesses can also deduct eligible professional services, including accounting, tax preparation and legal costs. Software subscriptions and other tools used to run the business can qualify as well.

Travel is another area where documentation matters. Business-related transportation, lodging and certain meal expenses may be deductible, but the rules vary by expense. Personal travel cannot simply be classified as a business cost because work happened during the trip.

The same principle applies to vehicles. Owners who use a car for business need records showing the business purpose and mileage or expenses supporting the deduction. Keeping those records throughout the year is considerably easier than reconstructing them months later.

When does a home office become a tax deduction?

Working from home does not automatically make the entire home deductible. The home office generally needs to meet specific IRS requirements, including regular and exclusive business use in qualifying circumstances. Eligible taxpayers can generally choose between the actual-expense method and the simplified method.

Under the simplified method, the deduction is based on $5 per square foot, with a maximum of 300 square feet. That produces a maximum deduction of $1,500.

The actual-expense method is more involved. It can allocate a qualifying share of expenses such as rent, utilities and other household costs to the business. The method that produces the larger deduction can depend on the taxpayer's circumstances and records.

Could retirement contributions lower your tax bill?

Retirement planning can serve two purposes for business owners: building long-term savings and potentially reducing current taxable income.

Traditional IRAs, 401(k)s, SEP plans and Solo 401(k)s have different eligibility requirements and contribution rules. The figures in the original material, such as the $23,500 employee 401(k) limit and $70,000 SEP limit, apply to 2025 and should not be treated as 2026 limits without checking the latest IRS guidance.

A Roth IRA works differently. Contributions are made with after-tax money, so they generally do not provide the same upfront deduction as traditional retirement contributions.

Why can an HSA be especially valuable?

For people who qualify for a health savings account, the tax treatment can be unusually favorable. Eligible contributions can be deductible, investment growth can be tax-free, and withdrawals used for qualified medical expenses can also be tax-free.

The 2025 contribution limits cited in the source material were $4,300 for individuals and $8,550 for families. Those numbers should be checked against the applicable 2026 limits before filing.

The larger point is that an HSA is not simply another account for paying medical bills. For an eligible taxpayer, it can combine several tax advantages in one place.

A freelancer expecting a payment near year-end may sometimes be able to delay receiving it until the following year. That does not erase the tax obligation. It shifts when the income is recognized.

The same thinking can apply to expenses. A business may choose to make legitimate year-end purchases or payments when doing so makes commercial and tax sense.

Possible expenses include insurance renewals, office supplies, vendor payments and qualifying equipment.

Tax rules can make equipment purchases particularly significant. The source material notes that the One Big Beautiful Bill Act increased the Section 179 deduction limit to $2.5 million and made 100% bonus depreciation permanent for qualifying property acquired and placed in service after January 19, 2025. Businesses should verify eligibility and the applicable rules before relying on either provision.