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Top 10 Tax Deductions Most Small Business Owners Miss

Small Business | By John Miller | 2025-05-23 12:50:55

Top 10 Tax Deductions Most Small Business Owners Miss

Small businesses in the USA make up more than 90% of all businesses and provide jobs to almost half the private-sector workforce. And yet, industry estimates indicate that as many as 90% of these small business owners never use relevant tax deductions to help lower their tax liability and thus end up paying an unnecessary amount in taxes every year. If small businesses lose priceless hours to tax compliance, then not merely improperly assessing, but also failing to claim deductions, wastes thousands of dollars and precious time. Taking into account these tax write-offs on accepted deductions will further help in reducing taxable income, increase profit margin, result in more cash flow, and help the business grow. 

Tax Deductions for US Small Business Explained in Detail

Here are the most overlooked tax deductions by many small businesses in the USA:

1. Startup Costs

Most small business owners do not recognize that the costs they incur can be deducted even before the start of business. The IRS lets you deduct the first $5,000 of the cost of organizing the business and the first $5,000 of startup expenses in the first year, with anything above being amortized for 15 years. Some of these costs might include things like legal fees, market surveys, advertising, and travel expenses in order to organize the business.

2. Home Office Deduction

If you have a dedicated space in your home used solely and regularly for business, you might qualify for the home office deduction. You can qualify to deduct a portion of your home mortgage or lease payment, utilities, insurance, repairs, and countless other expenses on a percentage basis devoted to business. The simplified option lets you deduct a $5/square-foot amount, up to 300 square feet ($1,500 total). Remember, though, it has to be devoted solely to business-working in your kitchen and dining table area doesn't count.

3. Business Vehicle-Related Expenses

Are you operating your car for business? If so, you can either deduct actual costs incurred, such as fuel, maintenance, repairs, insurance, and depreciation on your vehicle or claim the standard mileage rate as set by the IRS, which is evaluated and revised on an annual basis. Looking ahead to 2025, accurate mileage tracking as well as all receipts in support will need to be maintained to support your claim in an effective manner. This specific deduction goes unnoticed for individuals operating their own car for a mixture of business use and personal shopping.

4. Fees for Professional Services and Consulting Engagements

Expenses paid to accountants, tax professionals, attorneys, consultants, or other professionals directly associated with your business are deductible as taxes. Business owners tend to forget to deduct these expenses when they pay for services on an irregular basis or from individual accounts.

5. Business Insurance Premiums

Business insurance premiums, ranging from different types like liability, property, malpractice, cyber incidents, to even business disruption insurance, are deductible costs. These fall under the category of ordinary and necessary business expenses. Other than this, it must also be remembered that health insurance premiums paid are deductible in the case of self-employed taxpayers as well.

6. Contributions to the Retirement Plan

All such contributions about small business owners are a financial gain and serve as a tool to properly reduce one's taxable income. If SEP IRA contributions are concerned for 2025, they can get as much as 25% of the individual's total compensation or $69,000, whichever is lower. Offering retirement plans to workers also helps retain existing workers and assists in recruiting and hiring new members into the company.

7. Contributions to Charitable Organizations, Accrued Interest, Fees Paid, and Taxes Due

Below are some of the most common contributions made by small businesses that are tax-deductible:

  • State and Local Taxes: Most people miss the valuable opportunity of deducting state income taxes, payroll taxes, and real estate taxes paid as a business use deduction.
  • Interest and Fees: Interest on business loans, interest on credit cards, and even any bank fees that would be incurred, and the merchant processing fees are all tax-deductible.
  • Donations: The donations your company makes to qualified charitable institutions can be deducted from your taxes; however, keep in mind that the rules that dictate the deductions differ based on the nature of the business that you are involved in.

8. Advertising and Marketing Expenses Related Costs

All about promoting your business online, i.e., payments on websites, online sponsorships, printing items, print sponsorships, and event sponsoring tax deductibles. Even stationery and merchandise with your logo are tax-deductible. Don't miss these if you pay bit by bit while promoting all year round.

9. Business Meals

Usually, a deduction of 50% of the cost incurred in treating employees, partners, or clients to meals may be claimed, provided the meals are directly related to the conduct of your business. If company meals are provided for an event, or are for the benefit of the employees, e.g., a holiday party or a celebration, these could be 100% deductible under certain conditions. You need to maintain a proper set of records that include relevant information such as the date of the meal, the dollar amount spent, who was there, and the purpose of the meal. 

10. Pass-Through Deduction (Qualified Business Income Deduction)

Owners of S Corporations, partnerships, LLCs, and sole proprietorships could, basically, deduct 20% of their qualified business income as a result of the pass-through deduction provided under the Tax Cuts and Jobs Act. It is an excellent deduction if one can claim it. However, very few business owners benefit from it, as they do not even know whether they are entitled to claim it or how to determine if they are entitled to do so.

Frequently Overlooked Deductions That Most Small Businesses Miss Out

If you overlook these deductions, you may not be able to use it to the maximum of your benefits:

  • Office equipment and supplies: Even small purchases can make a big difference in the long run.
  • Utilities and Internet: Deduct the business aspect of your internet and education expenses.
  • Repairs and Maintenance: The cost of keeping your business premises in prime working order is wholly tax-deductible.
  • Education and Training: Course fees, seminars, and certifications that are specific to your business are deductible.

The Effect of Overlooked Deductions on Your Overall Financial Standing

Ignoring these possible deductions is causing you to pay taxes on higher income than you have to. Consider a situation where you just happen to forget $6,000 in contractor payments. If you are at a particular individual tax rate, this mistake can cause you to pay more than $1,500 extra in taxes than you would have paid otherwise. If you consider a couple of other deductions that you could forget, the overall cost can become a real thing, severely taxing your budget.

Tips to Maximize Your Tax Deductions

Here are some of the tips you can use to increase your tax deductions:

  • Keep Complete and Detailed Records: Complete and detailed records of all individual business expenses incurred and all receipts and invoices should be kept.
  • Use Accounting Software: Automate tracking of expenses to avoid missed deductions.
  • Seek the Advice of a Tax Professional: Tax legislation is ever-evolving, and a professional like The Fino Partners will point out all the available deductions.
  • Read and study the various IRS Publications: It is essential to stay informed and up to date on the latest IRS instructions on the business expenses of small businesses that they can claim.

Also Read | Top Tax Deductions Every Small Business Should Know in 2025

Conclusion

Tax deductions mean so much for small businesses. They lower their taxable income to some extent and increase their profits simultaneously. So if you stay updated and alert, you can even ensure that you don't miss out on any money that is rightfully yours. Before filing your next tax return, strongly consider any commonly underutilized deductions, and maybe consider talking to a tax expert, who can completely guide you toward recognizing and maximizing your savings.

Frequently Asked Questions (FAQs)

The other one overlooked is the home office deduction by home-based owners, largely because many of them do not know that a dedicated area is required to qualify.

Yes. You may elect to expense up to $5,000 of startup costs, paying for it in the first year of operation, whether or not you have made a profit; the balance is amortized over 15 years.

You are allowed to use the actual expenses to deduct (e.g., gas, maintenance, insurance) or its standard mileage rate as fixed by the IRS. Now, keep your detailed mileage log to back up your claims.

Generally, 50% of the cost of business meals is deductible. However, in certain circumstances, meals for an employee's convenience or company use may be 100% deductible.

Pass-through 20% deduction lets eligible pass-through entity owners (sole proprietors, partnerships, S corporations, LLCs) deduct a maximum of 20% of qualified business income. There are income restrictions and qualifications, so consult a tax professional.

Accounting software will automate expense tracking, reduce errors, and help you avoid missing qualified deductions, so tax season is easier and more accurate.
Aishwarya-Agrawal

John Miller

With extensive experience in accounting and finance, John Miller brings clarity and expertise to complex financial topics. His in-depth knowledge of bookkeeping, year-end accounting, and tax preparation empowers business owners to make informed decisions. John’s writing simplifies the essentials of accounting, making it accessible and valuable for small businesses and entrepreneurs.

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