Converting a sole proprietorship to an LLC, and what actually changes on Monday

Forming the entity is a form and a fee, and in most states it can be done in an afternoon. What people expect from it, a separation between business obligations and personal assets, does not arrive with the certificate. It arrives, or fails to, based on how the business is run afterward.

This is the sequence that produces a structure worth having, in the order the steps actually depend on each other.

Step one: check the name before anything else

Search the state's business registry for the name you intend to use, and separately search the federal trademark database. The two are unrelated: a state will register a name that infringes someone's mark, and the fact that a state accepted it is no defense.

Check domain and account availability at the same time. Changing a name after signage, vehicle lettering and printed material is a real expense that is entirely avoidable in the first hour.

Step two: file the formation documents

Articles of organization, filed with the secretary of state or its equivalent, with a fee that varies substantially between states. You will name a registered agent, meaning a person or service at a physical address in the state who accepts legal papers during business hours.

Using your own home address is permitted in most states and puts that address in a public record. A commercial registered agent service costs a modest annual fee and solves both the privacy question and the problem of being out on a job when a process server arrives.

Step three: write an operating agreement even if you are alone

Most states do not require one for a single-member LLC, and it is still worth having. It states that the company is a distinct entity with its own rules, which is precisely the argument you want on record if the separation is ever challenged.

For a multi-member LLC it is not optional in any practical sense, because without it the default rules in the state statute decide questions like who can bind the company and what happens when a member leaves.

Step four: the federal and state registrations

1. Get an EIN. Free, from the federal tax agency, issued immediately online. Do not pay a third party for this.
2. Register with the state tax agency for whatever applies: sales tax, employer withholding, unemployment insurance.
3. Check your local requirements. City business license, county registration, and a fictitious business name filing if you trade under anything other than the registered name.
4. Confirm trade licensing transfers. A contractor, cosmetology, or similar occupational license issued to you personally may need to be reissued to the entity, and operating under the wrong holder can invalidate work.

The third and fourth items are the ones that get missed. They are local, they differ between neighboring towns, and nobody sends a reminder.

For the order to do things in, the Small Business Administration lays out the general sequence. For the filings themselves it will not help, because every one of them is issued by a state, a county or a city.

Step five: separate the money, completely

This is the step that decides whether any of the preceding work matters. A bank account in the company name, funded by a documented contribution from you, with every business receipt going in and every business payment going out.

What breaks the separation is not one mistake. It is a pattern: paying a personal credit card from the business account, taking cash without recording it, running a family expense through the business because it was convenient.

Where a court is asked to look past an entity, this is the evidence it looks at, and the defense is a clean set of records rather than an explanation.

Pay yourself deliberately. For a single-member LLC taxed as a sole proprietorship, that means recorded owner draws rather than a payroll, and it means the draws are transfers between accounts and not purchases made directly from the business card.

Step six: update everything that names the old business

Insurance first, because it is the one with teeth: a policy naming you personally may not respond to a claim brought against the entity. Then contracts and customer agreements, which from now on are signed in the entity's name by you as its member.

Then vendor and supplier accounts, where personal guarantees frequently still attach and are worth asking about rather than assuming away. A lease usually needs the landlord's written consent to be assigned, so that one takes a conversation rather than a form.

The remainder is housekeeping and still worth doing: invoices, estimates, signage, the website and email footers. Consistent naming across all of them is part of what shows the entity is real rather than decorative, and it costs an afternoon once.

How you sign matters more than people think. Signing a contract with your own name alone, when the contract is with the company, invites the argument that you were the party. Sign as a representative: your name, your title, on behalf of the named company.

What the structure does not do

An LLC does not protect against your own negligence in performing the work. If you personally do a job badly and someone is harmed, you are a defendant regardless of the entity, which is why liability insurance remains the primary protection and the entity is a secondary one.

It does not automatically change how you are taxed either. By default a single-member LLC is taxed the same as a sole proprietorship, and self-employment tax applies as before. An election to be taxed differently is a separate decision with its own arithmetic, worth taking advice on rather than adopting because someone described it at a trade show.

And it does not remove personal guarantees already given. Lenders and landlords frequently require one from the owner of a small company, which means the entity holds the obligation and you hold a promise to cover it if the entity does not.

Filed, funded, separated and insured, the structure does what people want from it. Filed and then ignored, it is an annual report fee and a certificate in a drawer.