I'm a 1099 professional — should I form an S-corp?

A 1099 professional is already a business for tax purposes, filing on Schedule C and paying self-employment tax on the whole profit. An S-corporation election lets the professional split earnings between a reasonable salary and distributions that are not subject to self-employment tax, at the cost of payroll administration and a defensible salary. The election pays above a profit level, not from the first dollar.

Key points

A professional paid on a 1099 is already a business for tax purposes, reporting profit on Schedule C and paying self-employment tax on the entire net profit.
An S-corporation election, filed on Form 2553, splits earnings into a reasonable salary subject to payroll tax and distributions that are not.
The owner's salary must reflect what the work is worth in that market and specialty; an unreasonably low salary is among the most examined S-corporation issues.
The election adds payroll processing, payroll tax filings, and a separate Form 1120-S return, so it pays only above a profit level, not from the first dollar.
An S-corporation salary changes retirement plan contribution limits, the qualified business income deduction calculation, and state tax treatment.

Why does the S-corp question come up for 1099 professionals?

If you receive 1099 income, you are already running a business as far as the tax law is concerned, even if you have never filed a piece of paper to say so. Your profit flows onto Schedule C, and on top of income tax you pay self-employment tax on the entire net profit, calculated on Schedule SE.

That self-employment tax covers both the employee and employer halves of Social Security and Medicare, which is why it is the reason the S-corporation question comes up so often for independent physicians, consultants, and contractors.

How does an S-corporation election reduce self-employment tax?

An S-corporation is not a different kind of business so much as a different way of being taxed. You elect it on Form 2553 for an entity you already have, usually a limited liability company. Once the election is in place, the business pays you a salary through payroll, and the remaining profit can be taken as a distribution.

The salary carries payroll taxes. The distribution is not subject to self-employment tax. That gap is the entire source of the saving, and it is only as large as the distribution portion. If nearly all of the profit has to be paid as salary because that is what the work is worth, there is little left to distribute and little to save.

What does reasonable compensation require?

The catch built into the structure is the reasonable compensation requirement. The salary you pay yourself has to reflect what the work is actually worth in your market and specialty, measured against what a comparable employer would pay someone to do the same job. Paying an unreasonably low salary to shrink payroll taxes is one of the most examined issues for small S-corporations, and losing that argument means the IRS recharacterises distributions as wages, with back payroll taxes, penalties, and interest.

A defensible salary is documented at the time it is set: salary survey data for the specialty, hours worked, the share of revenue produced by the owner's own labour, and a written analysis kept with the corporate records. That documentation, prepared by a CPA, is what makes the arrangement hold.

When is the S-corp election not worth it?

The election brings cost and administration. You have to run payroll, file quarterly payroll returns, issue yourself a W-2, and file a separate Form 1120-S each year. There are bookkeeping fees and often state franchise or entity-level taxes. None of this is overwhelming, but it is real, and it is why the S-corporation does not pay from the first dollar of profit. Below a certain profit level, the administration costs more than the self-employment tax saved. Above it, the distribution becomes large enough that the saving clearly exceeds the cost. Where that line falls depends on your profit, your reasonable salary, and your state, so it is a calculation to run, not a rule of thumb.

Three secondary effects deserve a look before electing. Retirement plan contributions in a solo 401(k) or SEP are calculated from salary rather than total profit, so a lower salary can lower the contribution ceiling. The qualified business income deduction under section 199A is computed on profit after the salary, and above the income threshold it is limited by wages paid or, for specified service fields such as medicine, law, and consulting, phased out entirely. Some states do not recognise the election or impose their own tax on S-corporations. The right answer nets out ahead after all three, confirmed with numbers rather than adopted because someone at a conference said everyone should have one.