Once a freelance business is consistently profitable, electing S-corp tax treatment is one of the few genuinely legal ways to reduce self-employment tax — by splitting your income into a salary (subject to payroll tax) and a distribution (which isn’t). This calculator estimates what that split could actually be worth, after accounting for the extra cost of running payroll and an additional tax return.
| Sole proprietor: self-employment tax | $0 |
|---|---|
| S-corp: payroll tax on salary only | $0 |
| Payroll tax saved on the distribution | $0 |
| Minus extra S-corp running costs | $0 |
Why this works, and where it stops working
As a sole proprietor, your entire net profit is subject to self-employment tax — 15.3% of 92.35% of it. As an S-corp, only the salary portion goes through payroll tax at a comparable rate; the distribution portion is still subject to income tax, but skips payroll tax entirely. The gap between those two numbers is where the savings come from.
The catch is the “reasonable salary” requirement: the IRS expects your salary to reflect what someone would actually be paid to do that job, not an artificially low number chosen purely to dodge tax. Setting the salary too low is the most common way this strategy gets challenged in an audit, so this isn’t a number to guess at — a tax professional can help benchmark a defensible figure for your industry and role.
There are also real running costs an S-corp adds that a sole proprietorship doesn’t have: payroll processing, a separate business tax return, and often state-level fees, all included in the “extra cost” field above. Below a certain profit level, those costs eat up most or all of the tax savings, which is why this move usually only makes sense once profit is comfortably above typical living-wage salary levels for the work involved.
How is a reasonable S-corp salary determined?
It should reflect what an unrelated employer would pay someone to do the same work, considering training, experience, time spent and industry norms. There’s no single fixed formula, and it’s a common area of IRS scrutiny, so getting professional input specific to your role is worth it.
Is an S-corp worth it at any profit level?
Not usually. Below a certain profit level, the extra costs of payroll and an additional tax return often outweigh the tax saved, which is exactly what the “extra annual cost” field in this calculator accounts for.
Does electing S-corp status change my income tax?
Not directly — both the salary and the distribution are still subject to income tax. This calculator only covers the payroll/self-employment tax difference, which is where the actual savings potential comes from.
This calculator is a general estimate of payroll versus self-employment tax, not tax, legal or accounting advice. Whether an S-corp election makes sense depends on your specific state, industry and circumstances — talk to a tax professional before electing S-corp status.
For the bigger picture on business structure, see LLC vs sole proprietorship vs S-corp for freelancers.
Don’t forget the other major pass-through tax break: the QBI deduction calculator estimates your 20% deduction on top of whatever this shows.