Understand what the structure actually does, because it is commonly misunderstood in both directions. A limited company separates your personal assets from business liabilities, which matters if the business could plausibly be sued or take on debt it cannot pay. It does not protect you from your own negligence, from obligations you personally guaranteed, or from a court that finds the separation was never genuinely maintained.
That last point is the one people miss. The protection depends on operating the business as a separate entity in practice: a separate bank account, no mixing of personal and business spending, proper records, and formalities observed. A company whose owner treats the account as a personal wallet offers considerably less protection than they believe, and the paperwork is what makes the structure real rather than nominal.
The common triggers are recognisable. Hiring your first employee, which introduces employment liability. Signing a lease or taking on debt. Working with clients whose contracts require an entity. Doing anything where a mistake could cause substantial loss to somebody else. And revenue reaching a level where the tax treatment of a different structure produces a meaningful saving.
The tax question is genuinely a calculation rather than a preference, and it is where an accountant earns their fee in an hour. An S corporation election can reduce self employment tax by splitting income between salary and distribution, and it introduces payroll requirements, additional filings, and a reasonable compensation standard that is enforced. There is a revenue level below which the saving does not cover the additional cost and administration, and that level depends on your numbers.
Nevada has no state income tax, which changes the arithmetic compared with guidance written for other states, and it has its own registration and licensing requirements that apply regardless of structure. Advice found online frequently assumes a state income tax that does not apply here, which is one reason a local conversation is worth more than general research.
Do not restructure to solve a problem a different action would solve more cheaply. Insurance addresses liability more directly than incorporation for many businesses. Clear contracts address disputes. A separate bank account and clean records address most of the practical confusion people attribute to structure.
Time it for the start of a tax year where you can, because mid year changes create split period filings and complications that are avoidable with a small amount of planning. If the trigger is a specific event such as a hire or a contract, the timing follows the event rather than the calendar.
Then get it right rather than cheaply. Formation itself is simple and inexpensive, and the parts that matter are the operating agreement, the tax election, and understanding what you now have to file and when. This is general information rather than advice on your situation, and an hour with an accountant before deciding will cost less than correcting a structure chosen from a search result.
Whatever you decide, keep the business and personal finances separated from the first day regardless of structure, because the habit is what makes any later change straightforward. A sole proprietorship with clean records and a dedicated account can convert to a company in an afternoon. One where personal and business spending have been mixed for two years requires an accountant to untangle before anything can be filed, and that cost frequently exceeds what the structure was going to save.