LLC vs. S-Corp: What's the Tax Difference?

For a sole owner, a single-member LLC is usually taxed like a sole proprietorship. That means the business income is reported on the owner's personal return, and active business profit is generally subject to self-employment tax.

An S-Corp changes how the owner is paid. The owner who works in the business must be paid a reasonable W-2 salary. After that salary, remaining profit may be taken as distributions. Those distributions are not treated the same as wages for payroll tax purposes, which is where the potential tax savings come from.

The income tax result is often similar because both structures generally pass business income through to the owner's personal return. The main difference is how much of the business profit is treated as earned income subject to payroll or self-employment tax.

This is also why clean books matter. You cannot make a good S-Corp decision if you do not know your real profit, owner pay, tax reserves, and cash flow.

For many small business owners, the usual path is to form an LLC first, then consider the S-Corp election later once the numbers justify it. An LLC and an S-Corp are not true opposites. The LLC is the legal entity, and the S-Corp is a tax election that may be made when it makes sense.

Electing S-Corp status too early is a common mistake. Payroll, bookkeeping, a separate business tax return, and reasonable compensation documentation all cost money. If the business does not have enough profit above a reasonable salary, the compliance costs can wipe out the tax savings.

The better approach is to run the numbers before making the election. A business that was not ready last year may be ready this year. A business that is ready on paper may still need better books, payroll setup, or cash flow planning before making the move.

No. The 60/40 split is not an IRS rule. The IRS requires reasonable compensation based on the owner's role, services performed, industry, experience, time worked, and what comparable businesses would pay for similar work.

A fixed ratio is just a shortcut, not a defense. Paying yourself an artificially low salary to avoid payroll tax can create IRS risk. The salary needs to be reasonable on its own before the distribution strategy makes sense.

A reasonable salary is the amount your S-Corp should pay you as W-2 wages for the work you perform in the business.

There is no fixed IRS percentage or one-size-fits-all number. Your salary should be based on what the business would reasonably pay someone else to do the same job. That includes your role, duties, experience, hours worked, industry, location, and the profit of the business.

For example, if you are the main person doing the work, managing clients, making sales, handling operations, and running the business, your salary needs to reflect that. You cannot simply take a tiny paycheck and pull the rest out as distributions to avoid payroll tax.

The goal is not to pay the lowest salary possible. The goal is to pay a salary that is defensible, run payroll correctly, and then take distributions properly when the business has profit left over.

Reasonable salary is also not always a set-it-and-forget-it number. If your profit changes, your role changes, your hours change, or the business grows, your salary may need to be reviewed. This is one reason many S-Corp owners benefit from year-round CPA Advisory.

An S-Corp is usually not worth it when profit is low, when a reasonable salary would use up most of the income, or when payroll, bookkeeping, and tax filing costs are higher than the tax savings. As a rough starting point, many businesses do not see the math work until net profit is consistently around $40,000 to $60,000 or higher, depending on the owner's role and reasonable salary.

It is also not worth it if the business owner will not keep clean books, run payroll correctly, and treat the business like a real separate entity. A sloppy S-Corp can create more tax risk than it saves. If the business is not ready for that level of compliance, staying a standard LLC may be the better move until the numbers and systems improve.

Clean books are the starting point, but they are not the whole strategy. The real value comes from using those numbers to make better decisions about payroll, distributions, owner pay, tax reserves, retirement contributions, and year-end planning.

An S-Corp can save tax, but it also adds cost, complexity, and compliance. You need payroll, clean bookkeeping, a separate business tax return, reasonable salary support, and better separation between business and personal finances.

The biggest downside is that the savings are not automatic. If profit is too low, or if a reasonable salary uses up most of the income, the payroll costs, tax filing fees, and bookkeeping requirements may cost more than the tax savings.

An S-Corp also has to be maintained correctly. Late payroll, missed payroll tax deposits, messy books, personal expenses paid through the business, or unsupported distributions can create penalties, cleanup costs, and tax risk.

That does not mean S-Corps are bad. It means they should be used when the numbers, systems, and owner discipline are ready. Done right, an S-Corp can be a strong tax strategy. Done too early or handled sloppily, it can cost more than it saves.

CPA Advisory helps turn the S-Corp from a one-time tax election into an actual year-round strategy.

Once the election is made, the business owner must manage payroll, reasonable salary, distributions, tax estimates, clean books, owner pay, and year-end planning. If those pieces are not reviewed during the year, the strategy can fall apart or lose much of its value.

At 5D Accounting, our CPA Advisory service helps business owners review the numbers throughout the year so decisions are made before year-end, not after the year is already over. That can include tax projections, estimated tax reviews, reasonable salary planning, payroll coordination, owner pay planning, and year-end strategy.

At 5D Accounting, we help business owners review the numbers before making an S-Corp election. We look at profit, reasonable salary, payroll costs, bookkeeping, tax savings, compliance requirements, and whether the business is ready for the added responsibility.

For business owners who want ongoing support, our CPA Advisory service helps keep the strategy on track throughout the year. The goal is not just to file the election. The goal is to make sure the election actually works for your business.