How to Start an LLC in 2026: The Step-by-Step Formation Guide With Taxes Built In

Most people search how to start an LLC and get a checklist that stops at "file with the state." That's where the expensive mistakes begin. Formation is not just paperwork, it's a series of decisions that quietly set your tax bill, your privacy, and your compliance risk for years.

Form your LLC in the wrong state and you'll pay two sets of fees. Skip the EIN step or fumble it as a non-resident and your bank account stalls. Elect S-corp status too early and you burn cash on payroll you didn't need.

This guide walks through how to start an LLC the way it should be done, with the tax implications baked into every step instead of bolted on at the end. It's written for first-time founders, freelancers finally formalizing their side income, and immigrants or non-residents forming a US company from abroad.

USTAXX handles this end to end as an IRS Authorized Electronic Return Originator serving all 50 states. The goal here is simple: help you form it right the first time.

Key takeaways

• An LLC is a legal structure, not a tax status — you choose how it's taxed, and that choice drives your savings.
• The "best state" depends on where you actually do business, not on marketing hype about privacy or zero income tax.
• Your EIN is the federal step that takes longest, especially for non-residents without an SSN. A U.S.-formed LLC no longer files a BOI report.
• The S-corp election is a timing decision — wrong timing costs money either way, so run the numbers before you file Form 2553.

Step 1: Choose your entity and understand how it's taxed

Before you form anything, understand what you're actually choosing. According to the SBA (sba.gov), your business structure affects your taxes, liability, and paperwork burden.

An LLC gives you liability protection with flexible taxation. By default, the IRS (irs.gov) taxes a single-member LLC as a sole proprietorship and a multi-member LLC as a partnership. That means profit passes through to your personal return, and you pay self-employment tax on it.

That's the crux of the llc vs s corp debate people search constantly. An S corp isn't a separate entity you form, it's a tax election you make for your LLC or corporation. It can reduce self-employment tax, but only after your profit is high enough to justify running payroll and filing a separate return.

Here's how the common options compare at formation:

Structure	How it's taxed by default	Self-employment tax	Best fit
Sole proprietorship	Personal return, no separation	On all net profit	Testing an idea, no liability shield
LLC (default)	Pass-through to owner(s)	On all net profit	Most new founders and freelancers
LLC + S-corp election	Salary + distributions	Only on the salary	Established LLCs with steady profit
C corp	Entity pays its own tax	N/A (owner takes salary/dividends)	Startups raising venture capital

For most people asking how to start an LLC, the default LLC is the right starting point. You keep the option to elect S-corp taxation later without re-forming. If you're weighing incorporation for fundraising instead, our breakdown of LLC vs C-corp for founders covers that path.

Step 2: Pick the right state (not the trendiest one)

Searches for the best state to form llc are everywhere, and most of the advice is wrong for the person reading it. Wyoming, Delaware, and Nevada get promoted for privacy and low fees, but forming out of state rarely saves money if you operate somewhere else.

Here's the rule that cuts through the noise: form your LLC in the state where you physically live and work. If you run your business from California, a Wyoming LLC still has to register as a foreign LLC in California and pay California's fees and franchise tax. You end up paying twice.

The out-of-state play makes sense in specific cases: you're a non-resident with no US physical presence, you own real estate in a particular state, or you have a genuine multi-state operation. In those situations, states like Wyoming or Florida can offer real advantages.

If you're forming from abroad, both how to form a Wyoming LLC as a non-resident and Florida-based formation are worth comparing. USTAXX helps non-residents choose based on where their customers, property, and banking actually sit, not on a blog headline. When in doubt, contact USTAXX before you file anywhere.

Step 3: File the formation documents and appoint a registered agent

Once you've picked a state, you file the formation document, usually called the Articles of Organization, with that state's Secretary of State. Many states now let you form your LLC online in one sitting.

You'll need three things: a compliant business name, a registered agent with a physical address in the state, and the filing fee. Every state requires a registered agent to receive legal and government mail on your behalf.

If you're a non-resident or you simply don't want your home address on the public record, a professional registered agent solves both problems. The agent must have a physical address in your LLC's state, so choose one there. In Illinois, USTAXX can be your registered agent.

Skipping or neglecting this role is one of the most common ways new LLCs lose good standing. If a state can't reach you, you can miss a lawsuit or an annual report and get administratively dissolved without realizing it.

Step 4: Get your EIN — including without an SSN

After the state approves your LLC, you need an Employer Identification Number from the IRS. According to the IRS (irs.gov), the EIN is your business's federal tax ID, and you need it to open a bank account, hire employees, and file returns.

If you have an SSN or ITIN, you can apply online and get your EIN immediately. That's the fast path.

If you're a non-resident founder without an SSN, the online tool won't work for you, but you're not stuck. You file Form SS-4 by fax or mail, and the IRS issues the number without requiring an SSN. This is a routine process, but small errors on the form cause weeks of delay, so it pays to get it right the first time. Our step-by-step guide on how to get an EIN without an SSN walks through the exact fields.

The EIN is usually the longest step for international founders. USTAXX files SS-4 applications for non-residents regularly and knows how to avoid the responses that trigger rejections.

Step 5: BOI: U.S.-formed LLCs are exempt

Older guides list a Beneficial Ownership Information (BOI) report to FinCEN as a formation step. For an LLC formed in the United States, it no longer is. According to FinCEN (fincen.gov), an interim final rule published March 26, 2025 removed BOI reporting for U.S. companies and U.S. persons, and a final rule effective August 14, 2026 made that permanent.

Only companies formed under the law of another country that register to do business in a U.S. state still file a BOI report, and they do not report U.S. beneficial owners. A non-resident who forms an LLC in a U.S. state is forming a U.S. company, so that LLC files nothing with FinCEN.

What does matter is consistency: use the same legal name and address on your state filing, your EIN application and your bank account, so nothing is held up later.

Step 6: Decide on the S-corp election — with the numbers in front of you

This is where the llc vs s corp taxes question gets real. The S-corp election can lower self-employment tax because you split your income into a reasonable salary (subject to payroll tax) and distributions (not subject to self-employment tax).

But it isn't free money. An S corp requires running payroll, filing a separate return, and paying yourself a salary the IRS considers reasonable. Below a certain profit level, those added costs eat the savings.

According to the IRS (irs.gov), you make the election by filing Form 2553, and timing rules apply for when it takes effect. Filing too early wastes money on payroll infrastructure; filing too late means you overpaid self-employment tax for a year you can't get back.

The right move is to model your specific profit and a defensible salary before you file. USTAXX runs that analysis so the election is a math decision, not a guess. You can see flat, transparent pricing for that and for full formation on our professional tax preparation page.

Step 7: Set up the foundation for banking, credit, and records

Formation isn't the finish line, it's the starting line. Once your LLC is live with an EIN, open a dedicated business bank account. Mixing personal and business money is the fastest way to weaken your liability protection.

Start building a separate credit profile for the business early. A company that can borrow on its own name, without your personal guarantee on everything, is far more resilient.

Finally, keep clean records from day one. Organized income and expense records make your tax return simpler, your S-corp analysis accurate, and any IRS question far easier to answer.

Start your LLC the right way with USTAXX

Here's the sequence, start to finish: choose your entity, pick the state where you actually operate, file the formation documents with a registered agent, get your EIN, skip the BOI report a U.S. LLC no longer files, decide on the S-corp election with real numbers, then set up banking, credit, and records.

Do those steps in order and you avoid the double-taxation traps, the EIN delays, the outdated filing advice, and the mistimed elections that cost new founders money.

USTAXX does all of this as one coordinated engagement, whether you're a freelancer formalizing your income, a first-time founder, or a non-resident forming from another country with multi-language support. Formation done right the first time is far cheaper than fixing it later.

Ready to start? Contact USTAXX to map your entity, state, and tax election, or review flat-rate business formation and tax preparation options today.

This article is general information, not personalized tax, legal, or insurance advice. Consult a qualified professional about your specific situation.