What Can I Deduct as a Self-Employed Person?

You can deduct expenses that are ordinary and necessary for your work. Common deductions include a home office, business mileage or vehicle costs, equipment and supplies, software, subscriptions, professional services, business insurance, and the business-use portion of your phone, internet, and other shared costs.

The test is simple: the expense has to be for the business, and you need to be able to show it was. Personal costs with a business angle do not automatically qualify. Mixing business and personal spending is where many self-employed taxpayers lose deductions, create messy books, and make tax planning harder than it needs to be.

The most-missed deductions are usually the big ones, not the tiny receipts. Self-employed health insurance may be deductible above the line if you qualify. Retirement contributions through a Solo 401(k), SEP-IRA, SIMPLE IRA, or other qualified plan can shelter a meaningful amount of income. Half of your self-employment tax is deductible. And the qualified business income deduction, often called QBI, can be one of the most valuable deductions available to self-employed taxpayers.

The home office deduction is another one people skip, usually because of old audit fears. If space is used regularly and exclusively for business, it is a legitimate deduction and can be worth taking. The bigger issue is documentation. If your records are clean during the year, these deductions are much easier to claim and defend.

The biggest tax savings usually do not come from chasing small receipts. They come from choosing the right retirement plan, paying quarterly estimates to avoid penalties, considering an S-Corp once profit is high enough, tracking deductions correctly, and keeping your books clean enough to make informed decisions before year-end.

Tax prep looks backward. Tax planning works best during the year, while there is still time to adjust income, expenses, retirement contributions, estimated payments, and business structure. If you wait until April, most of the best planning opportunities are already gone.

Keep records for what you deduct: receipts, invoices, mileage logs, bank statements, and credit card statements, generally for at least three years. Bank and card statements help show that money was spent, but they do not always prove the business purpose by themselves.

A separate business bank account and card make this much easier. They keep business and personal spending separate, which makes your bookkeeping cleaner, your deductions easier to support, and your tax planning more accurate.

Clean books are not just about making tax filing easier. They are what allow a CPA to run tax projections, estimate quarterly payments, catch missed deductions, evaluate retirement contributions, and decide whether your current business setup still makes sense.

If your books are only cleaned up once a year at tax time, you may still get a tax return filed, but you lose most of the planning window. Year-round bookkeeping gives you the numbers. CPA Advisory helps you use those numbers to make better tax decisions.

CPA Advisory makes sense when your income is growing, your taxes feel unpredictable, or you are tired of finding out the answer after the year is already over. It can help with quarterly tax payments, deduction tracking, retirement planning, S-Corp timing, reasonable owner pay, tax projections, and year-end decisions.

Not every self-employed person needs monthly CPA Advisory. But if your income is meaningful, your books are messy, or your tax bill keeps surprising you, a year-round CPA relationship can be far more valuable than a once-a-year tax return.

5D Accounting helps self-employed individuals, freelancers, contractors, and small business owners with tax preparation, bookkeeping, and year-round CPA Advisory. If you want more than a once-a-year tax return, we can help you track the right numbers, plan ahead, and make smarter tax decisions throughout the year.