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Business Tax6 min readMar 17, 2026

Business Tax Deductions: A-to-Z Guide

A comprehensive alphabetical guide to business tax deductions every small business owner should know about.

Business Tax Deductions: A-to-Z

A – Advertising and Marketing

All costs of promoting your business: digital ads, print materials, website costs, social media.

B – Bad Debts

Amounts owed to you that you cannot collect (accrual basis businesses).

C – Car and Truck Expenses

Business use of vehicles via standard mileage rate (67 cents/mile) or actual expenses.

D – Depreciation

The cost of business assets deducted over their useful life (or immediately via Section 179).

E – Employee Benefits

Health insurance, retirement contributions, FSAs, HRAs for employees.

F – Freight and Shipping

Costs to ship products to customers or receive supplies.

G – Gifts to Clients

$25 per recipient per year limit.

H – Home Office

Dedicated space in your home used exclusively for business.

I – Insurance

Business liability, property, professional liability (E&O), workers' comp.

J – Janitorial/Cleaning

Cleaning services for your business premises.

L – Legal and Professional Fees

Attorney, CPA, consultant fees for business purposes.

M – Meals (Business)

50% of qualifying business meals.

O – Office Supplies

Paper, pens, printer ink, etc.

P – Professional Development

Courses, books, conferences related to your business.

R – Rent

Rent for office, retail, or warehouse space.

S – Software Subscriptions

Cloud software, SaaS tools, business apps.

T – Travel

Flights, hotels, ground transportation for business travel.

U – Utilities

Electricity, gas, water for your business location.

W – Wages and Salaries

Pay to employees, plus associated payroll taxes.


Missing deductions? Bring your records to K2 Tax Solutions for a thorough review.

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