Tax Deduction Basics: A Complete Guide for Small-Business Owners

A deductible business expense generally must be both ordinary and necessary for your trade or business.

• Ordinary means the expense is common and accepted in your industry.
• Necessary means the expense is helpful and appropriate for operating your business.

An expense does not necessarily have to be indispensable to qualify as necessary. However, it should have a clear and reasonable connection to your business activities.

It is also important to understand that “deductible” does not mean free. A deduction may reduce your taxable business income, but your business still spends the money. Buy something because it serves a legitimate business purpose—not simply because someone online called it a “write-off.”

The following chart provides examples of expenses to discuss with your tax professional. It is not an automatic deduction list, and eligibility depends on the facts surrounding each expense.

These are some of the most recognizable categories, but they are not the only costs a small business may need to track.

Advertising and marketing expenses may qualify when they are directly connected to promoting the business, reaching customers or maintaining the company’s brand.

Potential expenses include:

• Website design and maintenance
• Domain registration
• Website hosting
• Search engine optimization
• Online and social-media advertising
• Email marketing services
• Printed flyers, brochures and business cards
• Signs, banners and vendor displays
• Branding and graphic design
• Promotional products
• Business photography
• Product photography
• Public relations services
• Marketing consultants
• Sponsorships that provide advertising or promotional benefits
• Social-media scheduling and analytics tools

Marketing expenses should be reasonable for the business and supported by receipts, invoices or contracts. If a payment is described as a sponsorship or donation, document what promotional benefit the business received.

Businesses often purchase many smaller items needed for daily operations.

Examples may include:

• Paper, pens, folders and notebooks
• Printer ink and toner
• Mailing labels and envelopes
• Planners used for business scheduling
• Bookkeeping and accounting software
• Tax preparation software
• Customer relationship management software
• Cloud storage
• Design and editing software
• Project-management tools
• Appointment-scheduling services
• Virtual meeting platforms
• Cybersecurity tools
• Website plug-ins
• Business-use mobile applications
• Electronic signature services
• Password-management services
• Stock photos, graphics or licensed digital assets

Review recurring subscriptions periodically. A subscription may be inexpensive by itself, but several unused services can quietly drain the business’s cash flow.

Fees paid for qualified professional assistance may be business expenses.

Examples include:

• Bookkeeping
• Tax preparation and planning
• Payroll services
• Legal services
• Business consulting
• Information technology support
• Website development
• Graphic design
• Marketing assistance
• Human resources consulting
• Virtual assistant services
• Professional cleaning for business property

Keep the service agreement, invoice and proof of payment. If the professional provides both business and personal services, ask for an itemized invoice so the business portion can be identified.

Insurance purchased to protect the business may qualify as a business expense.

Potential policies include:

• General liability insurance
• Professional liability insurance
• Errors and omissions coverage
• Commercial property insurance
• Cyber liability insurance
• Workers’ compensation insurance
• Commercial vehicle insurance
• Product liability insurance
• Business interruption coverage
• Eligible health or life insurance arrangements

Personal insurance does not automatically become deductible because it is paid through the business account. The policy, insured party and purpose of the coverage all matter.

Businesses that hire nonemployees may be able to deduct the cost of their services.

Contract workers could include:

• Virtual assistants
• Freelance writers
• Graphic designers
• Social-media managers
• Photographers
• Website developers
• Bookkeepers
• Consultants
• Event workers
• Cleaning services
• Repair professionals

The business may have information-reporting responsibilities based on the type and amount of payment. Collecting the appropriate tax information before work begins can make year-end reporting much easier.

Calling someone a contractor does not automatically make that worker an independent contractor. Worker classification depends on the actual working relationship.

Qualifying business travel generally involves traveling away from your tax home for a legitimate business purpose.

Potential expenses may include:

• Airfare
• Train or bus tickets
• Rental vehicles
• Lodging
• Baggage fees
• Transportation between the airport, hotel and business destination
• Business-related tolls and parking
• Eligible meals
• Shipping business materials to the destination
• Laundry during qualifying travel
• Convention or conference fees

Travel expenses must be ordinary, necessary and not lavish or primarily personal. Adding a business appointment to a family vacation does not automatically make the entire trip deductible.

When a trip includes both business and personal activities, keep detailed records so the qualifying business portion can be separated.

The IRS explains business travel, meals and vehicle recordkeeping in Publication 463.

Some business meals may qualify for a deduction, subject to current limitations and documentation requirements.

For each meal, document:

• The date
• The amount
• The location
• Who attended
• The business relationship
• The specific business purpose

A note such as “business lunch” may not provide enough information. A more useful note would explain that you met with a prospective bookkeeping client to discuss their monthly service needs.

Entertainment expenses are treated differently from qualifying business meals. If food is purchased during an entertainment event, it may need to be purchased or stated separately for the meal portion to be considered.

If you use a vehicle for business, do not wait until tax season to estimate your mileage.

Track both:

• Total annual mileage for the vehicle
• Qualifying business mileage
• Personal mileage
• Commuting mileage, when applicable

Your mileage log should include:

• Date of the trip
• Starting point
• Destination
• Number of miles
• Specific business purpose

Examples of potentially qualifying trips may include traveling to meet a client, purchasing business supplies, visiting a temporary work location or attending a business event.

Driving from home to a regular work location is generally considered commuting unless a specific exception applies. The home-office rules can also affect how certain trips are treated.

Depending on eligibility, a business owner may use the standard mileage method or the actual-expense method. The choice can affect which vehicle costs are included and how the deduction is calculated. Learn more from IRS Topic No. 510, Business Use of Car.

If you use your cellphone or home internet for business, the qualifying business portion may be deductible.

Communication expenses may include:

• Cellphone service
• Business phone lines
• Home internet used for business
• Video-conferencing services
• Virtual phone systems
• Business texting platforms
• Fax services
• Answering services
• Post-office boxes
• Business mailing addresses

When a service is used for both personal and business activities, track a reasonable business-use percentage. Keep copies of the bills and document how the percentage was determined.

Paying the entire family phone bill from the business account does not make the entire bill deductible.

A business owner may qualify for the home-office deduction when part of the home is used regularly and exclusively for eligible business purposes. Limited exceptions may apply for certain storage and daycare uses.

Potential home-office expenses may include the qualifying business portion of:

• Rent
• Mortgage interest
• Real estate taxes
• Utilities
• Homeowners or renters insurance
• Security services
• Maintenance
• Qualifying repairs
• Depreciation under the regular method

A direct expense affecting only the office may be treated differently from an indirect expense benefiting the entire home.

For example, repairing damage inside the qualifying office may be a direct expense. A whole-house electric bill would generally require an allocation between business and personal use.

Eligible taxpayers may be able to choose between the regular method and the simplified method. The simplified method uses a prescribed rate and qualifying square footage, while the regular method requires records of actual home expenses.

More information is available through IRS Topic No. 509, Business Use of Home.

Some purchases may need to be recorded as business assets rather than immediately classified as ordinary office expenses.

Examples include:

• Computers
• Tablets
• Smartphones
• Printers
• Cameras
• Office furniture
• Machinery
• Tools
• Commercial appliances
• Business vehicles
• Major software purchases
• Equipment used to manufacture products

Depending on the cost, useful life and applicable tax rules, an item may need to be capitalized and depreciated over time. Other provisions may allow eligible businesses to recover some or all of the cost sooner.

Record:

• The item purchased
• Purchase date
• Total cost
• Date placed in service
• Business purpose
• Business-use percentage
• Serial number, when applicable
• Date and details of any later sale or disposal

Do not automatically place every large purchase into “office supplies.” Doing so can create inaccurate financial statements and additional work during tax preparation.

Education may qualify when it maintains or improves skills used in your existing business.

Potential expenses include:

• Continuing education
• Professional certifications
• Industry conferences
• Workshops and seminars
• Business books
• Educational subscriptions
• Webinars
• Required licensing education
• Training related to current services
• Travel associated with qualifying education

Education that qualifies someone for an entirely new trade or business may be treated differently, even when the new skill could eventually benefit an existing company.

Document the course description and how the training relates to the work you currently perform.

Businesses can accumulate significant costs simply from accepting payments and maintaining financial accounts.

Potential expenses include:

• Monthly business bank fees
• Wire-transfer fees
• Check-ordering costs
• Payment-processing fees
• Credit card processing fees
• Marketplace transaction fees
• Seller-platform fees
• Eligible business loan interest
• Eligible business-use credit card interest
• Certain financing costs

Loan payments should be divided properly. The principal portion generally reduces the amount owed and is not treated as an ordinary business expense. Eligible interest and certain fees may receive separate tax treatment.

Businesses that create or sell products may need to track inventory and cost of goods sold.

Potential costs include:

• Products purchased for resale
• Raw materials
• Components used to make products
• Product packaging
• Freight paid to obtain inventory
• Manufacturing supplies
• Direct labor associated with production
• Storage costs in certain circumstances

Buying inventory does not necessarily create an immediate deduction for the full amount spent. The tax treatment may depend on when and how the products are used or sold.

Keep records of:

• Beginning inventory
• Purchases
• Items produced
• Items sold
• Damaged or obsolete inventory
• Personal use of inventory
• Ending inventory

Product samples, promotional products and items withdrawn for personal use should also be tracked instead of simply disappearing from the inventory records.

Shipping-related costs are easy to overlook, particularly for online and product-based businesses.

Potential expenses include:

• Postage
• Shipping labels
• Courier services
• Customer delivery fees
• Envelopes and mailers
• Shipping boxes
• Packing tape
• Protective packaging
• Shipping insurance
• Fulfillment services
• Post-office box fees

Packaging that becomes part of the product may be treated differently from packaging used only to ship the order. Separate bookkeeping categories can help identify these costs accurately.

Rent paid for property or equipment used by the business may qualify.

Examples include:

• Office rent
• Retail space
• Studio space
• Warehouse rent
• Storage units used for inventory or business property
• Coworking memberships
• Vendor booth fees
• Short-term event space
• Equipment rentals
• Business vehicle leases

A storage unit containing both personal belongings and business inventory may require an allocation. Document what is stored there and how the space supports the business.

Businesses with employees may incur expenses beyond their wages.

Potential expenses include:

• Employee wages
• Employer payroll taxes
• Payroll-processing services
• Workers’ compensation insurance
• Eligible employee benefits
• Employer retirement contributions
• Employee training
• Uniforms provided to employees
• Reimbursements under an eligible arrangement
• Background checks
• Recruiting and job-posting fees

Employee wages and independent contractor payments should be recorded separately because the tax and reporting requirements are different.

Payments made to the owner also require correct classification. An owner’s draw, guaranteed payment, distribution and employee wage do not all receive the same treatment.

The costs of legally establishing or operating a business are sometimes forgotten.

Potential expenses include:

• State and local business licenses
• Professional licenses
• Industry permits
• Seller permits
• Annual report fees
• Registered-agent fees
• Business-name registration
• Regulatory fees
• Eligible filing fees
• Required inspections

Initial formation expenses may receive different treatment from recurring license-renewal fees. Keep each receipt and note whether it relates to forming, maintaining or expanding the business.

The cost of keeping business property in normal working condition may qualify as a current expense.

Examples could include:

• Computer repairs
• Equipment servicing
• Cleaning
• Minor building repairs
• Routine maintenance
• Pest control for business property
• Qualifying vehicle maintenance
• Replacement of small equipment parts

A repair that maintains an asset may be treated differently from an improvement that increases its value, extends its useful life or adapts it for a different purpose. Major improvements may need to be treated as assets and depreciated.

Certain taxes paid by a business may qualify as business expenses.

Potential examples include:

• Employer payroll taxes
• State or local business taxes
• Personal property taxes on business assets
• Certain excise taxes
• Real estate taxes on business property
• Franchise taxes
• Certain regulatory assessments

Federal income taxes generally are not deducted as ordinary business expenses.

Sales tax collected from customers may represent money the business holds for a government agency. It should be tracked separately from the business’s operating income when appropriate.

Professional memberships may qualify when they are directly related to the business or industry.

Examples include:

• Professional associations
• Industry organizations
• Local business groups
• Chamber of commerce memberships
• Business networking organizations
• Trade publications
• Professional journals
• Research databases

Memberships in clubs organized primarily for entertainment, recreation or social purposes are generally treated differently, even if the owner occasionally makes business contacts there.

Gifts to clients, referral partners or business contacts may have a legitimate business purpose, but federal deductions for business gifts are subject to specific limitations.

Keep records showing:

• The item purchased
• Its cost
• The recipient
• The date
• The recipient’s business relationship
• The reason for the gift

Incidental expenses, promotional products distributed broadly and gifts provided to specific people may receive different treatment.

Many entrepreneurs spend money before the business officially opens.

Potential startup or organizational costs include:

• Market research
• Business planning
• Pre-opening advertising
• Formation services
• Legal and accounting assistance
• Initial employee training
• Travel to investigate a potential business
• Certain registration costs
• Surveys of potential markets or suppliers
• Website expenses incurred before launch

These costs are not always treated the same as expenses incurred after the business begins operating. Some costs may qualify for limited current deductions, while others may need to be recovered over time.

Keep pre-opening receipts separate and document the date the business became active.

An unpaid invoice can be financially painful, but it does not always create a tax deduction.

A cash-basis business generally recognizes income when payment is received. If an unpaid invoice was never included in taxable income, the business may not have an income amount to deduct later.

Businesses using other accounting methods may receive different treatment.

Keep copies of:

• Customer invoices
• Payment reminders
• Collection letters
• Returned checks
• Settlement agreements
• Records showing why the debt became uncollectible

Self-employed individuals may qualify for tax benefits involving retirement contributions or health insurance. However, these amounts may not appear as ordinary expenses on the business’s profit-and-loss statement.

Items to discuss with a tax professional include:

• Self-employed health insurance
• SEP IRA contributions
• SIMPLE IRA contributions
• Solo 401(k) contributions
• Health savings account contributions
• Employee health benefits
• Employer retirement contributions

Eligibility and reporting depend on the plan, entity structure, available insurance coverage and individual tax circumstances.

Clothing does not automatically qualify because it was purchased for work, worn in a business video or used during a photoshoot.

Qualifying work clothing generally must be required for the work and unsuitable for ordinary personal wear.

Potential examples include:

• Branded employee uniforms
• Safety equipment
• Protective clothing
• Medical scrubs in qualifying circumstances
• Specialized costumes
• Steel-toed boots required for certain work

Everyday clothing that could reasonably be worn outside the business generally does not become deductible simply because it was purchased for work.

A donation paid from a business account is not automatically an ordinary business expense.

The tax treatment can depend on:

• The business structure
• The organization receiving the payment
• Whether the business received anything in return
• Whether the payment was a donation, sponsorship or advertising expense

If the business receives advertising, promotional placement or another business benefit, the payment may be evaluated differently from a charitable gift. Keep the agreement showing what the business received.

Product Samples, Demonstration Items and Promotional Giveaways

Businesses that sell, review or demonstrate products may need to track items used for:

• Customer samples
• Product demonstrations
• Display inventory
• Promotional giveaways
• Business photography
• Content creation
• Influencer campaigns
• Tester products

The treatment depends on what happened to the item. A product sold to a customer, given away as a promotion, consumed during a demonstration and retained for personal use should not necessarily be recorded the same way.

Document:

• The item
• Its original cost
• How it was used
• The related campaign or event
• Whether it was later sold, discarded or used personally

Content creators and online businesses may have legitimate expenses that traditional businesses do not encounter as frequently.

Potential examples include:

• Camera and audio equipment
• Lighting
• Editing software
• Website and social-media tools
• Stock media
• Music or content licenses
• Props used exclusively for business content
• Studio rental
• Freelance editing
• Thumbnail or graphic design
• Influencer platform fees
• Products purchased specifically for qualifying reviews or demonstrations

However, creating content about a personal purchase does not automatically transform it into a deductible business expense. Mixed business and personal use must be considered, and the business purpose should be documented.

Businesses selling through online marketplaces may have fees deducted before the payout reaches their bank account.

These may include:

• Marketplace commissions
• Listing fees
• Transaction fees
• Affiliate platform fees
• Refund-processing fees
• Advertising charges
• Fulfillment fees
• Storage fees
• Live-selling platform charges

Record the gross sale, applicable fees and refunds—not just the net deposit received. A $90 bank deposit could represent a $100 sale minus $10 in fees. Recording only the deposit understates both income and expenses.

Customer refunds and payment disputes should be recorded separately from ordinary business expenses.

Track:

• Customer refunds
• Sales returns
• Chargebacks
• Disputed-payment fees
• Restocking fees
• Returned inventory
• Damaged goods
• Shipping costs that were not recovered

Clear records help explain why gross sales do not match the final amount retained by the business.

Modern businesses may incur expenses to protect customer information, financial accounts and digital systems.

Potential expenses include:

• Antivirus software
• Password managers
• Data backups
• Fraud-monitoring services
• Identity-verification tools
• Secure document portals
• Shredding services
• Security cameras
• Alarm monitoring
• Cybersecurity consulting

These costs may be especially relevant to businesses handling sensitive tax, financial, health or customer information.

Depending on the business, qualifying expenses may include:

• Professional cleaning
• Cleaning products for business property
• Sanitizing supplies
• First-aid supplies
• Required safety equipment
• Fire extinguishers
• Safety inspections
• Protective barriers
• Waste disposal

Household cleaning supplies do not automatically qualify because the owner works from home. The expense should relate specifically to the qualifying business space or activity.

Expenses related to moving business equipment, inventory or operations may require special review.

Potential costs include:

• Commercial movers
• Transportation of inventory
• Equipment relocation
• Temporary business storage
• Utility setup for a business location
• Installation costs
• New licenses and registrations

Personal moving expenses and business relocation expenses should be separated. Some relocation costs may be current expenses, while others may become part of the cost of a new asset or facility.

Common examples of expenses that generally should not be recorded as ordinary business deductions include:

• Personal living expenses
• Personal groceries
• Family vacations
• Personal entertainment
• Everyday clothing
• Personal grooming
• Federal income taxes
• Fines and penalties paid for violating the law
• Political contributions
• Owner withdrawals or distributions
• Loan principal payments
• The personal portion of mixed-use expenses
• The value of the owner’s unpaid time
• Purchases lacking a legitimate business purpose

An expense does not become deductible merely because:

• It was paid from a business account.
• The receipt has the business name on it.
• It appeared in social-media content.
• A business conversation happened during the purchase.
• Someone in the same industry deducted something similar.
• The owner believes it helped them feel more productive.
• An online creator called it a “tax write-off.”

Documentation Is Just as Important as the Purchase

A receipt shows what you purchased, but it may not explain why the expense relates to your business.

Depending on the transaction, retain:

• Receipts
• Invoices
• Bank and credit card statements
• Canceled checks
• Contracts
• Mileage logs
• Appointment calendars
• Travel itineraries
• Names of meal attendees
• Notes explaining the business purpose
• Photographs of promotional use
• Proof of payment
• Loan documents
• Asset-purchase records

For mixed-use expenses, document how the business-use percentage was calculated.

The IRS generally allows businesses to choose a recordkeeping system that fits their operations as long as it clearly shows income, expenses, deductions and credits. Review the IRS guidance on what business records to keep.

A viral post may say that business owners can deduct clothing, vacations, meals, vehicles, beauty services, home expenses or almost anything else. That does not mean the expense qualifies for your particular business.

Eligibility depends on factors such as:

• The actual business purpose
• The type of business
• The owner’s specific activities
• Business versus personal use
• Available documentation
• Entity and tax classification
• Accounting method
• Timing of the purchase
• Applicable federal and state law

A deduction that may be appropriate for one business owner could be completely personal for another.

When you are unsure:

1. Save the receipt or invoice.
2. Record the transaction.
3. Add a note explaining the possible business purpose.
4. Avoid automatically categorizing it as deductible.
5. Ask your tax professional how it should be treated.

Good deduction planning begins long before the tax return is prepared.

Weekly

• Upload receipts.
• Categorize recent transactions.
• Add business-purpose notes.
• Update mileage.
• Send invoices.
• Review unpaid customer balances.

Monthly

• Reconcile business bank and credit card accounts.
• Separate personal transactions.
• Review payment-processing fees.
• Record loan principal and interest correctly.
• Update inventory records.
• Review subscriptions.
• Save monthly account statements.
• Review the profit-and-loss statement.

Annually

• Verify contractor and employee information.
• Review business assets purchased or disposed of.
• Calculate total and business vehicle mileage.
• Review home-office expenses.
• Count ending inventory when applicable.
• Gather loan statements.
• Review owner contributions and withdrawals.
• Confirm that income records match payment-platform and marketplace reports.

Business deductions are not about finding creative ways to make personal spending look like business spending. They are about accurately identifying the ordinary and necessary costs of earning business income.

The bookkeeping category is only the beginning. The business purpose, supporting records, timing, personal-use portion and applicable tax rules determine how an expense should ultimately be treated.

Consistent recordkeeping throughout the year can help you:

• Capture legitimate business expenses
• Reduce tax-season stress
• Produce more accurate financial reports
• Understand where the business’s money is going
• Make better financial decisions
• Provide your tax professional with reliable information

Need help getting your business finances organized? Sparkles Accounting provides bookkeeping and tax preparation support designed to help small-business owners create clearer records, stay prepared and make confident financial decisions.

This article provides general educational information and is not individualized tax, accounting or legal advice. Deductibility and reporting depend on the specific facts, business structure and laws applicable to the tax year. Consult a qualified tax professional regarding your individual situation.