To set up a 1099 business, you choose a legal structure, register it with your state if the structure requires it, get a federal tax ID, and put the tax, banking, and contract habits in place that an employer would otherwise handle for you. The formation steps take days. The habits you build around taxes and recordkeeping determine whether the business runs cleanly for years.
Pick a Legal Structure First
The structure you choose controls your personal liability, your tax filing, and how much paperwork you deal with each year. Most independent contractors operate as a sole proprietorship or a limited liability company. A smaller group elects S-corporation tax treatment once income justifies it.
Sole Proprietorship
A sole proprietorship needs no state filing. If you start taking contract work without forming anything, you are already a sole proprietor. The catch is that the law treats you and the business as one person. Business debts are your personal debts, and a lawsuit against the business can reach your personal accounts, home, and other assets. You report income and expenses on Schedule C with your Form 1040.
Limited Liability Company
An LLC creates a legal wall between your personal finances and the business. If the company is sued or cannot pay a debt, only the assets inside the company are typically at risk. A single-member LLC is taxed the same way as a sole proprietorship by default, so you get liability protection without changing how you file. You also gain flexibility in how profits are split if you later add a co-owner, and you can choose how the IRS taxes the business.
S-Corporation Election
An LLC or corporation can elect S-corporation tax treatment by filing IRS Form 2553. The election does not change your state-level structure; it only changes how the IRS taxes your income. The potential benefit is a lower self-employment tax bill. Without the election, you pay 15.3% self-employment tax on all net earnings. With the election, you pay yourself a reasonable salary through payroll and take the remaining profit as a distribution that is not subject to Social Security and Medicare taxes.
Form 2553 must be filed no more than two months and 15 days after the start of the tax year the election applies to, or any time during the preceding year.1Internal Revenue Service. Instructions for Form 2553 The IRS requires that owner-employees pay themselves a salary reflecting what someone in the same role would earn. An unreasonably low salary can be reclassified as wages, with back payroll taxes and penalties. The election typically makes sense only when net income is high enough that the payroll tax savings outweigh the cost of running payroll.
Register Your LLC With the State
If you go with an LLC, several steps happen with your state before the entity exists. Sole proprietors operating under a name other than their legal name may need to file a “doing business as” registration with the county or state, though that does not create a separate legal entity.
Choose a Name
Your LLC’s name must comply with state naming rules and cannot duplicate a name already on file with the Secretary of State. Most states require “LLC” or “Limited Liability Company” in the name. Search your state’s business name database before committing; nearly every Secretary of State office provides a free online search.
Designate a Registered Agent
Every LLC must have a registered agent to accept legal documents and official state notices. The agent needs a physical street address in the state of formation and must be available during normal business hours. You can serve as your own agent or hire a commercial service. If you move or become unavailable, undelivered legal notices can produce a default judgment against the business.
File Articles of Organization
The Articles of Organization is the document that formally creates your LLC. It goes to the Secretary of State and typically lists the LLC’s name, the registered agent’s name and address, the organizers or initial members, and the business’s purpose or duration. Some states call it a Certificate of Organization or Certificate of Formation, but the function is the same. Filing fees generally range from $50 to $500 depending on the state and whether you pay for expedited processing. Online filings often clear same-day or within a few business days; paper filings can take weeks.
Once the state accepts your filing, you receive a Certificate of Organization confirming the LLC legally exists. Keep it. You need it to open a bank account, apply for licenses, and prove the business is legitimate to clients.
Draft an Operating Agreement
An operating agreement is an internal document that spells out how the LLC is managed, how profits are divided, and what happens if you add or remove members. Not every state requires one, but drafting it strengthens the legal separation between you and the business.2Small Business Administration. Basic Information About Operating Agreements Without it, your LLC can start to look like a sole proprietorship to a court, which weakens the liability protection you formed the LLC to get.
Annual Reports
Forming an LLC is not one-and-done. Most states require an annual or biennial report with the Secretary of State that updates your registered agent, address, and members. Fees range from under $10 to several hundred dollars. Missing the deadline can bring late penalties, loss of good standing, or administrative dissolution, which strips your liability protection until you reinstate.
Get an Employer Identification Number
An Employer Identification Number is a nine-digit federal tax ID from the IRS. You need one if you form an LLC, hire employees, or open a business bank account. Sole proprietors with no employees can use their Social Security number, but many use an EIN to avoid handing their SSN to every client.
Apply using IRS Form SS-4.3Internal Revenue Service. About Form SS-4, Application for Employer Identification Number (EIN) The IRS online application is fastest and issues an EIN immediately. You need a U.S. principal place of business and a valid SSN or ITIN for the responsible party, meaning the individual who controls the entity.4Internal Revenue Service. Get an Employer Identification Number You can apply for only one EIN per responsible party per day, and the online session cannot be saved. Gather your information first.
Local and Professional Licensing
State formation is not the end of the licensing question. Your city or county may require a general business license or operating permit to confirm you comply with local zoning and safety rules. Working from home can trigger a home occupation permit. These usually go through your city clerk’s office or a local building and safety department.
Certain professions such as accounting, engineering, and cosmetology require specialized licenses from state regulatory boards, with education and exam requirements. Operating without the required license can bring fines or forced closure. Check with your state’s professional regulation agency to find out whether your trade needs one.
Handle Self-Employment Taxes
The biggest change from W-2 work is that you now owe the taxes an employer used to split with you. As a 1099 worker, you owe self-employment tax on net business earnings at a combined 15.3%, covering both halves of Social Security (12.4%) and Medicare (2.9%).5Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) The Social Security portion applies only to net earnings up to $184,500 in 2026; the Medicare portion has no cap.6Social Security Administration. Contribution and Benefit Base You can deduct the employer-equivalent half (7.65%) when figuring your adjusted gross income.
Quarterly Estimated Payments
Because nobody is withholding, the IRS expects quarterly estimated payments covering income tax and self-employment tax. You generally must pay estimates if you expect to owe $1,000 or more when you file.7Internal Revenue Service. Estimated Taxes The 2026 deadlines are:
- First quarter: April 15, 2026
- Second quarter: June 15, 2026
- Third quarter: September 15, 2026
- Fourth quarter: January 15, 2027
You can skip the January 15 payment if you file your 2026 return and pay the full balance by February 1, 2027.8Internal Revenue Service. Form 1040-ES, Estimated Tax for Individuals Missing a deadline triggers an underpayment penalty calculated as interest on the shortfall, currently at 7% annually, compounded daily.9Internal Revenue Service. Quarterly Interest Rates
Schedule C and Schedule SE
Operating as a sole proprietor or single-member LLC without an S-corp election, you report business income and expenses on Schedule C attached to Form 1040. If net self-employment earnings are $400 or more, you also file Schedule SE to calculate the self-employment tax.10Internal Revenue Service. Schedule C and Schedule SE
Track Deductible Business Expenses
Deductions reduce your taxable income, and because they also reduce net self-employment earnings, they lower your self-employment tax as well. The IRS allows ordinary and necessary expenses on Schedule C, including:
- Vehicle expenses, either actual costs (gas, insurance, repairs) or the standard mileage rate of 72.5 cents per mile for 2026, plus parking and tolls.11Internal Revenue Service. 2026 Standard Mileage Rates
- Home office costs, meaning a portion of rent or mortgage interest, utilities, and insurance if you use part of your home regularly and exclusively for business.
- Business, professional, and property insurance premiums.
- Office supplies and equipment, including computers, software, and postage.
- Professional service fees paid to accountants, attorneys, and tax preparers for business work.
- Travel and meals: lodging and transportation for overnight business travel, and 50% of business meal costs.
- Contract labor paid to subcontractors.
- Rent for office space, equipment, or vehicles used in the business.
Keep receipts and records for anything you deduct. The IRS can audit returns for up to three years after filing, or six years if it suspects a substantial understatement of income.12Internal Revenue Service. Instructions for Schedule C (Form 1040)
Set Up the Client-Facing Paperwork
Form W-9 and the 1099-NEC Threshold
When a new client hires you, they will ask you to complete IRS Form W-9, which supplies your taxpayer identification number (EIN or SSN) and certifies your tax status.13Internal Revenue Service. About Form W-9, Request for Taxpayer Identification Number and Certification The client uses that information to issue a Form 1099-NEC reporting what they paid you during the year.
For 2026, the reporting threshold rose from $600 to $2,000. Clients are required to file a 1099-NEC only when total payments reach $2,000 or more during the calendar year.14Internal Revenue Service. 2026 Publication 1099 Whether or not you receive a 1099-NEC, you still report all business income on your return. The form governs the client’s reporting obligation, not yours.
Separate Business Bank Account
A dedicated business account is one of the most important steps for preserving LLC liability protection. Commingling personal and business funds is one of the easiest ways for a court to pierce the corporate veil and hold you personally liable. Most banks want your Certificate of Organization, EIN, and a copy of your operating agreement to open a business checking account. The separate account also gives you a clean trail that simplifies bookkeeping and tax filing.
Written Contracts With Clients
A written contract is one of the factors the IRS weighs when deciding whether a worker is genuinely an independent contractor or a misclassified employee.15Internal Revenue Service. Independent Contractor (Self-Employed) or Employee? A clear contract establishes that you control how the work is done, which is the core distinction between contractor and employee.16Internal Revenue Service. Independent Contractor Defined At a minimum, each contract should cover scope of work, payment terms and schedule, deadlines, ownership of the finished work, and how either party can end the relationship.
Protect the Business With Insurance
Your LLC’s liability shield protects personal assets from business debts. It does not protect the business itself from lawsuits. Two coverages are common for independent contractors:
- General liability insurance covers third-party claims for bodily injury on your premises, property damage you cause, and advertising injuries like defamation or copyright infringement.
- Professional liability insurance, sometimes called errors and omissions coverage, addresses claims that your work was incomplete, substandard, or caused a client financial harm.
Some clients require proof of insurance before signing. Even when it is not required, coverage protects the business you are building from a single unexpected claim.