What the election actually changes
An S-corporation election doesn't create a new type of business — it changes how an existing LLC or corporation is taxed. Instead of all of the business's profit being subject to self-employment tax, an S-corp owner who works in the business pays themselves a salary (subject to payroll tax like any employee) and can take the remaining profit as a distribution, which isn't subject to self-employment tax. That gap between salary and distribution is the entire reason the election exists.
The reasonable-salary trade
The IRS's condition on this is that the salary has to be 'reasonable' for the work you actually do — comparable to what you'd pay someone else to do your job. Set it too low and you're inviting scrutiny; set it at the full profit of the business and you've eliminated the benefit entirely. Getting this number right, and documenting how you got there, is most of the actual work of running an S-corp well.
There's a real cost on the other side of the ledger too: payroll processing, a separate business return, and generally more bookkeeping precision than a sole proprietorship needs. For a business with thin margins, that overhead can approach whatever the election would have saved.
When it doesn't pay
The election tends to help once a business is consistently profitable beyond what a reasonable owner salary would be — there's more room for a meaningful distribution. Below that, the extra payroll and administrative cost can outweigh the tax savings, sometimes by a wide margin. It also matters less if most of your profit needs to stay in the business for growth rather than being taken out as owner pay.
We've talked more than one prospective client out of the election in the first meeting. That conversation is free; the S-corp filing isn't.
Making the switch without a mess
If the numbers do support it, the mechanics matter: the election has a filing deadline relative to your fiscal year, payroll needs to be running correctly from day one, and your bookkeeping needs to separate owner draws from payroll cleanly. Getting these details wrong doesn't undo the tax benefit, but it does create cleanup work — and occasionally penalty notices — that erodes it.
This is general information, not tax advice.