What Expenses You Can Deduct When You're Self-Employed on a 1099

What you can deduct as a 1099 contractor

When you receive a 1099, you report your income and pay self-employment tax on the full amount — but you can reduce your taxable income by deducting ordinary and necessary business expenses. The IRS uses those two words to mean: expenses that are common in your line of work and that you actually need to do the job. A laptop for a software developer qualifies. A laptop for someone who works in retail does not.

The key is that the expense must be directly tied to earning the income you reported on the 1099. You cannot deduct personal expenses, even if you sometimes use them for work. You also cannot deduct expenses that are lavish or excessive for your field. The IRS expects you to keep receipts and records showing what you spent and why.

Deductions reduce your taxable income, which lowers the income tax you owe. They also reduce your self-employment tax base, which saves you money on Social Security and Medicare taxes. That is why tracking expenses carefully matters — the tax savings compound.

Key Takeaways

• You can deduct supplies, equipment, software, and tools you buy specifically to do your 1099 work, as long as they are ordinary for your field and you keep receipts.
• Home office deductions are available if you use a dedicated space only for work, either by deducting a percentage of rent or mortgage interest, utilities, and insurance, or by using the simplified $5 per square foot method.
• Vehicle and mileage expenses are deductible only for trips directly related to work — commuting to a regular office does not count, but driving to a client site or to buy supplies does.
• Professional services like accounting, legal information, and bookkeeping software are deductible, as are subscriptions and memberships required for your work.
• You must keep receipts, invoices, and records for all deductions, and the IRS may ask to see them if you are audited.

Office supplies, equipment, and software

Supplies you buy to do your work — paper, pens, printer ink, notebooks — are fully deductible in the year you buy them. Equipment with a useful life of more than one year, like a desk, chair, or computer, is usually deductible too, but the rules differ depending on the cost and type of item.

Items under $2,500 can generally be deducted in full in the year you buy them under Section 179 expensing. Items over that threshold may need to be depreciated over several years, meaning you deduct a portion each year. Your tax software or accountant can help you determine which category an item falls into.

Software subscriptions — Adobe Creative Suite, Microsoft Office, project management tools, accounting software — are deductible as long as they are used for your business. The same applies to online courses or certifications directly related to your work. Streaming services or general entertainment are not deductible, even if you sometimes watch them during work hours.

Home office deductions

If you use part of your home exclusively for work, you can deduct a portion of your rent, mortgage interest, property taxes, utilities, internet, insurance, and maintenance costs. The space must be used regularly and only for work — a bedroom that doubles as an office does not may have access to, but a dedicated corner or spare room does.

You have two methods. The simplified method lets you deduct $5 per square foot of dedicated office space, up to 300 square feet, for a maximum deduction of $1,500 per year. You do not need receipts. The regular method requires you to calculate the percentage of your home used for work and deduct that same percentage of your actual expenses. If your office is 200 square feet and your home is 2,000 square feet, you deduct 10 percent of your rent, utilities, insurance, and so on.

The regular method usually yields a larger deduction if you have high housing costs, but it requires detailed record-keeping and may trigger depreciation rules that affect your taxes when you sell your home. Many self-employed people find the simplified method easier and sufficient.

Vehicle and mileage expenses

You can deduct mileage for trips directly related to your work. Driving to a client's office, a job site, a meeting, or a supply store counts. Commuting from home to a regular workplace does not, even if you are self-employed. The IRS sets a standard mileage rate each year — you multiply your work miles by that rate and deduct the result.

Alternatively, you can track your actual vehicle expenses — gas, maintenance, insurance, registration, depreciation — and deduct the percentage that applies to work use. If you drive 10,000 miles per year and 6,000 are for work, you deduct 60 percent of your total vehicle costs. This method requires detailed records and often yields a smaller deduction than the mileage method, so most self-employed people use the mileage approach.

You cannot deduct both methods in the same year. Choose one and stick with it. If you switch methods, you may need to recalculate depreciation, so ask an accountant before changing.

Professional services and business expenses

Fees you pay to accountants, bookkeepers, lawyers, and consultants are deductible if they relate to your business. That includes tax preparation, business formation, contract review, and accounting software. Membership dues for professional organizations in your field are also deductible, as are industry publications and trade journals.

Insurance premiums for business liability, professional liability, or health insurance you pay yourself are deductible. Advertising costs — website hosting, social media ads, business cards, flyers — are deductible. So are phone and internet bills, but only the portion used for business if you also use them personally.

Bank fees, credit card processing fees, and loan interest are deductible. Meals and entertainment have stricter rules: you can deduct 50 percent of meal costs when you are meeting with a client or prospect to discuss business, but not meals you eat alone or entertainment that is not directly tied to a business discussion.

What you cannot deduct

Personal expenses are never deductible, even if you use them sometimes for work. Groceries, personal hygiene items, and general household supplies do not count. Commuting costs — gas to drive to a regular office, parking, public transit passes — are not deductible because the IRS considers that a personal expense.

Clothing is not deductible unless it is specialized work gear that you would not wear otherwise — a chef's uniform, safety boots, or a nurse's scrubs may have access to, but regular clothes do not, even if you wear them to work. Fines and penalties are never deductible. Expenses for hobbies or side projects that do not generate income are not deductible.

Luxury or excessive expenses are not deductible. A $50,000 desk is not ordinary for most fields. A $200 pen is not necessary. The IRS expects you to spend reasonably for your industry. If you are unsure whether an expense is ordinary and necessary, ask an accountant or check IRS Publication 587 (Business Use of Your Home) or Publication 334 (Tax Guide for Small Business).

Keeping records and receipts

The IRS does not require you to attach receipts to your tax return, but you must keep them for at least three years in case you are audited. For expenses over $75, keep the original receipt. For smaller expenses, a credit card statement or bank record is usually sufficient, but a receipt is safer.

Use a spreadsheet, accounting software, or a dedicated app to track expenses by category — office supplies, mileage, meals, professional services, and so on. Note the date, amount, and business purpose of each expense. For mileage, record the date, starting point, destination, miles driven, and business purpose. For meals, note who you met with and what business was discussed.

If you are audited, the IRS will ask to see your records. If you cannot produce them, you lose the deduction. If you cannot produce them for a large deduction, the IRS may disallow other deductions too and assess penalties. Keeping good records takes a few minutes per week and protects you if questions arise.

Frequently Asked Questions

Can I deduct my internet bill if I work from home?

Only the portion used for business. If you use your internet for both personal and work, estimate the percentage for work — say 50 percent — and deduct that amount. Keep your bill as a record. If you have a separate business internet line, deduct 100 percent of it.

What if I buy equipment but do not use it right away?

You can still deduct it in the year you buy it, as long as you intend to use it for your business. The IRS does not require you to use it when ready. However, if you buy something and never use it, you cannot deduct it. Keep a record showing your business purpose for the purchase.

Can I deduct a car payment or lease?

No. Car payments and leases are not deductible. You can deduct either the standard mileage rate for work miles or your actual operating expenses like gas and maintenance, but not the cost of the vehicle itself. Depreciation is built into the mileage rate.

Do I need to deduct everything, or can I skip small expenses?

You do not have to deduct everything, but you should. Every deduction reduces your taxable income and your self-employment tax. Even small expenses add up over a year. The only reason to skip an expense is if you do not have a receipt and cannot reconstruct the amount.

What happens if I deduct something the IRS does not allow?

If you are audited and the IRS disallows a deduction, you owe tax on that amount plus interest. If the IRS determines you were negligent or fraudulent, you may owe penalties on top of that. This is why keeping good records and being honest about what qualifies as a business expense matters.