Every deduction you overlook is money you’re handing over to the IRS that you didn’t have to. Because no employer is tracking your business expenses for you, it’s entirely on you to know what qualifies and to keep the records that prove it. Below is a practical checklist of deductions that self-employed people and freelancers commonly miss, along with a few ground rules for claiming them safely.
The general rule the IRS uses
A business expense is deductible if it’s “ordinary and necessary” for your line of work. Ordinary means other people in your field commonly spend money on it. Necessary means it helps you do your job, not that it’s absolutely required. That standard is broader than most freelancers assume, which is exactly why so many legitimate deductions go unclaimed.
Home office deduction
If you have a space used regularly and exclusively for work, you can likely deduct a portion of your rent or mortgage interest, utilities, insurance, and repairs based on the percentage of your home that space occupies. There’s also a simplified option that lets you deduct a flat amount per square foot, up to a cap, without tracking actual home expenses. The simplified method is faster; the regular method sometimes yields a bigger deduction if your home costs are high. It’s worth calculating both once to see which fits your situation.
Health insurance premiums
Self-employed people who aren’t eligible for a spouse’s employer plan can generally deduct 100% of their health insurance premiums, along with dental and qualifying long-term care premiums, as an adjustment to income rather than an itemized deduction. This one is easy to miss because it doesn’t feel like a “business” expense, but it can be one of the largest deductions available to a solo freelancer.
Retirement contributions
Contributions to a SEP-IRA, Solo 401(k), or SIMPLE IRA reduce your taxable income while building your retirement savings at the same time. The contribution limits change each year, so check the current figures on IRS.gov before filing, but don’t skip this deduction just because the paperwork feels intimidating — a tax professional or a good payroll/retirement platform can usually calculate the maximum contribution for you in minutes.
Software, subscriptions, and equipment
Accounting software, project management tools, cloud storage, stock photo or design subscriptions, your business phone plan (or the business-use percentage of a personal plan), and computer equipment are all fair game. Larger equipment purchases can often be deducted in full in the year you buy them rather than depreciated over several years, depending on the method you choose.
Mileage and vehicle use
Driving to meet a client, pick up supplies, or attend a work-related event counts as business mileage. You can deduct using the standard mileage rate (which the IRS updates annually) or track actual vehicle expenses and deduct the business-use percentage. Commuting from home to a single regular workplace generally doesn’t count, but almost everything else work-related does. A simple mileage-tracking app removes the guesswork.
Professional development and education
Courses, certifications, industry conferences, books, and coaching that maintain or improve skills you already use in your business are deductible. Education that qualifies you for a brand-new line of work generally isn’t, so the line is “getting better at what you do” versus “becoming something new.”
Bank fees, business insurance, and professional services
Monthly business bank account fees, payment processor fees, liability or errors-and-omissions insurance, and what you pay an accountant, bookkeeper, or lawyer for business matters are all deductible. These are easy to miss because they’re small, recurring, and rarely feel like “expenses” in the moment.
Business meals and travel
Meals with a genuine business purpose — discussing a project with a client or collaborator, for example — are typically deductible at 50%. Travel costs for business trips, including flights, lodging, and ground transportation, are deductible when the primary purpose of the trip is business. Keep a note of who you met and what was discussed; that context is what separates a deductible meal from a personal one in the eyes of an audit.
A record-keeping habit that makes all of this easy
None of these deductions matter if you can’t substantiate them. The lowest-effort system that actually works: open a dedicated business bank account and card, run every business expense through it, and reconcile it against your bookkeeping software once a week. When a purchase serves both business and personal life — like a phone plan or home office — write down the business-use percentage once and apply it consistently. Snap a photo of paper receipts the moment you get them; a folder of timestamped images is far more useful at tax time than a shoebox.
Key takeaways
- The “ordinary and necessary” standard covers more expenses than most freelancers assume.
- Health insurance premiums and retirement contributions are often the largest missed deductions.
- Small recurring costs — bank fees, subscriptions, processor fees — add up and are easy to forget.
- A dedicated business account and a weekly reconciling habit make every deduction easy to prove later.
- When a deduction is genuinely unclear, a short call with a tax professional usually costs far less than the deduction you’d otherwise miss.
This article is for general educational purposes and isn’t personalized tax advice. Tax rules and limits change and can vary by situation, so confirm current details with the IRS or a qualified tax professional before filing.