To work as a 1099 employee — more accurately, as an independent contractor who receives a Form 1099-NEC instead of a W-2 — you set up a business identity, sign a W-9 and a written contract with each client, invoice for your own pay, and take over the tax, insurance, and retirement work an employer would normally handle. The freedom to set your own hours and serve multiple clients comes bundled with real administrative responsibilities, and getting the setup right in the first few weeks saves months of cleanup later.
Confirm You’re Actually a Contractor
Before anything else, make sure the arrangement is genuinely contractor work. The IRS looks at three areas to decide: behavioral control (does the company direct how, when, and where you work), financial control (who pays for tools, how you’re paid, whether you can take a loss), and the relationship itself, including written contracts and whether you receive employee-type benefits.1Internal Revenue Service. Worker Classification 101: Employee or Independent Contractor Independent contractors ordinarily use their own methods and equipment.2Internal Revenue Service. Behavioral Control
The label on the contract doesn’t override the reality. If a company sets your hours, forbids you from taking other clients, supervises you task by task, and requires you to use its equipment, you may be an employee who has been misclassified, and the Fair Labor Standards Act’s minimum wage and overtime protections still apply to you.3Federal Register. Employee or Independent Contractor Classification Under the Fair Labor Standards Act If you suspect that’s your situation, you can file IRS Form SS-8 to request a formal worker-status determination.4Internal Revenue Service. About Form SS-8, Determination of Worker Status for Purposes of Federal Employment Taxes and Income Tax Withholding The rest of this guide assumes the contractor arrangement is genuine.
Get a Taxpayer ID and Choose a Structure
You need a taxpayer identification number to give to clients. Your Social Security Number works, but many contractors apply for a separate Employer Identification Number so they aren’t handing their SSN to every business they invoice. You apply using IRS Form SS-4, and online applications generate the EIN immediately.5Internal Revenue Service. Instructions for Form SS-4
Most new contractors start as sole proprietors. There’s nothing to file: you and the business are legally the same entity, and everything flows through your personal tax return. The trade-off is that your personal assets are exposed if the business is sued or takes on debt. Forming a single-member LLC creates a separate legal entity that shields personal savings and property. LLC filing fees vary by state, typically between $35 and $500 as a one-time cost, and many states also charge an annual or biennial report fee. If you operate under a business name that differs from your legal name, most states require a “doing business as” or fictitious name registration.
Paperwork for Each New Client
Every client relationship starts with a Form W-9. On it you provide your legal name, business name if different, taxpayer identification number, and tax classification, then sign to certify your status. A sole proprietor with an EIN can enter either the SSN or the EIN.6Internal Revenue Service. Form W-9 (Rev. March 2024) The IRS cross-references these numbers against your returns, so double-check the entries. Keep a blank W-9 saved somewhere accessible so you can fill one out on request.
The W-9 is what lets a client report your pay at year-end. Any client that pays you $600 or more during the year files Form 1099-NEC with the IRS and sends you a copy.7Internal Revenue Service. Instructions for Forms 1099-MISC and 1099-NEC You owe tax on all your income whether or not a 1099 shows up, but the forms help you reconcile records.
The second document is your service agreement. A written contract signed before work begins should cover:
- Scope and deliverables in enough detail that both sides can tell when the work is done
- Payment rate, invoicing schedule, and when payment is due (net-15, net-30, or another timeline)
- Intellectual property ownership: by default, copyright in what you create belongs to you as the author, so if the client is supposed to own the work, the contract needs a written assignment or a work-for-hire clause8Office of the Law Revision Counsel. 17 U.S. Code 201 – Ownership of Copyright
- Termination: how either side ends the relationship, the notice required, and what happens to partial work and unpaid invoices
- An explicit statement that you are an independent contractor, understanding that this clause alone won’t override the reality of the working relationship
Keep an executed copy in your business files. It’s your best evidence that the relationship was a genuine contractor arrangement.
Invoicing and Recordkeeping
Nobody cuts you a paycheck. You send an invoice for each billing period listing the services performed, hours worked if hourly, and the total due, along with a project or contract reference so the client’s accounts payable team can match it. Send it to whoever handles payments, not just your day-to-day contact.
Net-30 is common. You can push for net-15 or payment on receipt for smaller engagements. Funds typically arrive by ACH direct deposit or business check. Track outstanding invoices and follow up promptly when one goes past due; a polite reminder on day 31 is far easier than chasing payment at day 90.
Save every invoice, receipt, and bank statement. The IRS generally requires you to keep records supporting income and deductions for at least three years from the date you file. If you underreport income by more than 25%, the retention window extends to six years, and if you never file, there’s no expiration.9Internal Revenue Service. How Long Should I Keep Records
Taxes You Now Owe Yourself
Contractor taxes involve more forms and more deadlines than a W-2 job. The core lineup:
- Schedule C (Form 1040) reports your business income and deductible expenses to arrive at net profit or loss.10Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship)
- Schedule SE (Form 1040) calculates your self-employment tax on those net earnings.11Internal Revenue Service. About Schedule SE (Form 1040), Self-Employment Tax
- Form 1040-ES is the voucher for quarterly estimated tax payments, required if you expect to owe $1,000 or more after withholding and credits.12Internal Revenue Service. 2026 Form 1040-ES Estimated Tax for Individuals
The self-employment tax rate is 15.3% of your net earnings: 12.4% for Social Security and 2.9% for Medicare, on top of regular income tax.13Office of the Law Revision Counsel. 26 USC 1401 – Rate of Tax Two provisions soften it. You only pay SE tax on 92.35% of net earnings, and you can deduct half of your self-employment tax when calculating adjusted gross income on Schedule 1, whether or not you itemize.14Office of the Law Revision Counsel. 26 U.S. Code 164 – Taxes If net self-employment income exceeds $200,000 (single) or $250,000 (married filing jointly), an additional 0.9% Medicare tax applies to the amount above the threshold, which is not indexed for inflation.15Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Quarterly estimated payments for 2026 are due April 15, June 15, September 15, and January 15, 2027.12Internal Revenue Service. 2026 Form 1040-ES Estimated Tax for Individuals Pay through the Electronic Federal Tax Payment System, IRS Direct Pay, or the IRS2Go app.16Internal Revenue Service. Estimated Taxes To avoid an underpayment penalty, pay at least 90% of your current-year tax or 100% of last year’s tax, whichever is less. If your prior-year adjusted gross income was over $150,000, that prior-year threshold rises to 110%.17Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
A practical habit: open a separate savings account and move 25 to 30% of every payment into it. When quarterly deadlines arrive, the money is already there.
Deductions to Track From Day One
Every legitimate business expense reduces both your income tax and your self-employment tax, so tracking as you go pays off directly.
Home Office
If you use part of your home exclusively and regularly for business, you can deduct a portion of rent or mortgage interest, utilities, and insurance. The space doesn’t need walls, but it does need to be a separately identifiable area used only for work; a shared family room doesn’t qualify.18Internal Revenue Service. Publication 587 (2025), Business Use of Your Home The IRS also offers a simplified method: $5 per square foot, up to 300 square feet.
Business Mileage
Driving to client meetings, supplier pickups, or work sites is deductible. The 2026 standard mileage rate is 72.5 cents per mile.19Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents Keep a log with the date, destination, business purpose, and miles. Commuting to a regular work location doesn’t count, but if your home office is your principal place of business, drives from there to client sites do.
Health Insurance Premiums
Self-employed contractors who aren’t eligible for coverage through a spouse’s employer plan can deduct 100% of health, dental, and vision premiums as an adjustment to income, reducing AGI before you reach the standard or itemized deduction.20Internal Revenue Service. Instructions for Form 7206 (2025) Claim it on Form 7206 and carry it to Schedule 1. The deduction can’t exceed your net self-employment income from the business under which the plan is established.
Other Common Deductions
Equipment, software subscriptions, professional development, liability insurance, legal and accounting fees, and office supplies are deductible when ordinary and necessary. Report each category on Schedule C, keep digital or paper receipts, and categorize as you go rather than dumping a year of statements on your desk in March.
Retirement You Fund Yourself
Without an employer matching a 401(k), retirement saving is entirely yours. Self-employed plans offset that with high contribution limits that also lower your current-year taxable income.
- SEP IRA: contribute up to 25% of net self-employment income, with a $72,000 cap for 2026. Simple to set up and light on filing. All contributions come from the “employer” side, with no employee deferral option.21Internal Revenue Service. SEP Contribution Limits (Including Grandfathered SARSEPs)
- Solo 401(k): contribute as both employer and employee. The 2026 employee deferral limit is $24,500, plus employer contributions up to 25% of net self-employment income, with a combined ceiling of $72,000. Age 50 or older adds a $8,000 catch-up, bringing the potential total to $80,000. Solo 401(k)s also offer a Roth option, which SEP IRAs do not.22Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs, as Adjusted for Changes in Cost-of-Living
Insurance and Protections You Lose
Nobody is providing your health coverage, disability protection, or liability insurance. These aren’t extras; they’re what keeps your business viable when something goes wrong.
You can buy individual health coverage through the federal Health Insurance Marketplace. Self-employed freelancers, consultants, and contractors are eligible, and premium tax credit eligibility is based on estimated net self-employment income and household size. Losing employer-sponsored coverage triggers a Special Enrollment Period outside the normal open enrollment window.23HealthCare.gov. Health Care Insurance Coverage for Self-Employed Individuals
General liability insurance covers claims for bodily injury or property damage in connection with your work. Professional liability (errors and omissions) covers claims that your work caused a client financial loss through a mistake, oversight, or missed deadline. Which you need depends on the work: a web developer likely needs professional liability; a contractor who visits client sites likely needs both. Some clients require proof of insurance before signing.
One boundary worth naming so you can price for it: independent contractors are not covered by the Fair Labor Standards Act’s minimum wage and overtime rules,3Federal Register. Employee or Independent Contractor Classification Under the Fair Labor Standards Act are generally ineligible for state unemployment insurance because no employer is paying unemployment tax on you, and in most states aren’t covered by workers’ compensation, so a job-site injury is your financial problem. Experienced contractors build these costs into their rates. If you’re covering your own taxes, insurance, and retirement, your billing rate needs to reflect all of it.