LLC vs. S-Corp: Which Structure Actually Saves More in Taxes

The comparison shows up in almost every conversation about entity structure, and the short answer disappoints most people who ask it: it depends on your profit level, and the crossover point is a real number you can calculate, not a rule of thumb. An LLC taxed as a disregarded entity or partnership passes all of its profit through to the owner as self-employment income, subject to self-employment tax on the full amount. An S-Corp election changes that math by splitting owner compensation into two categories, W-2 wages, which carry payroll tax, and distributions, which do not, and that split is the entire source of the tax savings people are chasing when they ask this question.

Self-employment tax runs 15.3% on net earnings up to the Social Security wage base, then 2.9% above it for Medicare, with an additional 0.9% Medicare surtax at higher income levels. An LLC owner earning $150,000 in net profit pays self-employment tax on essentially all of it. The same owner operating through an S-Corp might pay themselves a reasonable salary of $80,000, subject to payroll tax, and take the remaining $70,000 as a distribution, which is not subject to Social Security or Medicare tax at all. That gap is where the savings live, and it scales with profit until other costs start eating into it.

Those other costs are real and too often left out of the comparison. An S-Corp requires payroll processing, which means payroll software or a service, quarterly payroll tax filings, and W-2 preparation at year-end. It requires a separate business tax return, Form 1120-S, rather than a Schedule C attached to your personal return. Many states impose their own S-Corp-level taxes or fees independent of the federal picture. None of this is prohibitively expensive, but at low profit levels, the administrative cost can approach or exceed the self-employment tax savings, which is exactly why this is not a decision with one universal right answer.

The generally cited crossover point, where S-Corp savings start to outweigh the added administrative cost, tends to fall somewhere in the $40,000 to $60,000 net profit range for a single-owner business, though the exact number depends on state-level costs, payroll provider fees, and how much of the profit can reasonably be characterized as distribution versus wages. Below that range, many owners are better off staying an LLC and accepting the simpler compliance picture. Above it, the case for electing S-Corp treatment generally strengthens every year profit grows, assuming reasonable compensation is set correctly.

Reasonable compensation is the constraint that keeps this strategy from being an unlimited savings lever, and it is worth understanding before you run the numbers. The IRS expects S-Corp officer salary to reflect what a similar role would pay in the open market for the time, skill, and responsibility involved, not an artificially low number designed purely to minimize payroll tax. An owner working full-time in a business generating $200,000 in profit cannot reasonably pay themselves a $20,000 salary and call the rest distribution; the salary needs to hold up to comparability data if it is ever examined.

Multi-member LLCs add a layer the single-owner comparison does not capture. A multi-member LLC taxed as a partnership allows more flexibility in how income is allocated among partners, including guaranteed payments that function differently from wages, and self-employment tax treatment can vary depending on whether a partner is treated as actively participating in the business. Electing S-Corp treatment for a multi-member business changes the compensation and allocation mechanics for every owner simultaneously, which makes the decision more complex, and more important to model correctly before committing.

State-level treatment varies enough to change the answer entirely in some cases. Some states do not recognize the S-Corp election for state tax purposes and tax the entity as if it were still a standard LLC or corporation. Others impose a minimum franchise tax or entity-level fee regardless of profit, which changes the breakeven math in either direction depending on the amount. Before assuming the federal analysis tells the whole story, the state-level cost side of the ledger needs the same scrutiny.

Timing the election is a detail that catches people off guard. An S-Corp election generally needs to be made within two months and fifteen days of the start of the tax year it is meant to apply to, or it takes effect the following year instead. A business that decides mid-year it wants S-Corp treatment for the current year may have already missed the window, and retroactive relief, while sometimes available, is not something to plan around. This is a decision that rewards looking ahead rather than reacting to a strong first quarter in July.

The decision is not permanent, and revisiting it periodically matters more than people expect. A business that elected S-Corp treatment at a certain profit level can outgrow the benefit of the added complexity if profit later declines, or can leave real savings on the table if profit grows well past the point where the election first started making sense but reasonable compensation was never revisited. Treating this as a one-time decision made at formation, rather than a structure to reassess as the business changes, is one of the more common ways owners either overpay in payroll tax or underpay in a way that draws scrutiny.

OICPA runs the LLC versus S-Corp comparison against your actual numbers, current profit, expected growth, state of incorporation, and a defensible reasonable compensation range, rather than a generic rule of thumb, and helps time the election correctly when it makes sense to file one. If you have not run this comparison in the last year or two, or your profit has changed meaningfully since you last did, that is worth revisiting before the next filing deadline rather than after.

The honest version of this comparison is not "S-Corp is better" or "LLC is simpler". It is a crossover calculation specific to your numbers, your state, and how much administrative complexity you are willing to take on for the savings available at your profit level. Getting the timing and the reasonable compensation number right matters as much as making the election itself.