Electing S-Corp status can be a smart tax strategy — especially when your business is growing and you want to reduce self-employment taxes.
But here’s the truth most business owners don’t hear enough: S-Corps are amazing when you run them correctly… and a problem when you don’t.

If you want to avoid audits, penalties, and compliance issues, these are the red flags the IRS pays the most attention to.

1. Not Paying Yourself a “Reasonable Salary”

This is the biggest S-Corp red flag.

If you’re taking distributions but not running payroll, the IRS sees that as a problem.
An S-Corp owner who provides services must be paid a reasonable wage before taking profits.

A few things the IRS considers when evaluating your salary:

• your role in the business

• your experience

• industry rates

• the amount of work you personally perform

• what you would pay someone else to do the same job

Skipping payroll or paying yourself an unrealistically low salary can trigger an audit faster than anything else.

2. Mixing Payroll and Distributions Incorrectly

A clean S-Corp separates:

• salary (taxed as W-2 wages)

• distributions (profits after payroll)

If all money coming out of the business looks like random transfers, owner draws, or cash withdrawals, the IRS reads that as poor compliance.

You must be able to show:

• proper payroll records

• proper withholding

• clear documentation showing which payments were salary vs. distributions

If the numbers don’t match the tax return, it becomes a red flag.

3. Poor or Incomplete Bookkeeping

If your bookkeeping is messy, your S-Corp compliance will be messy.

Common issues I see:

• expenses not categorized

• commingled accounts

• missing reimbursements

• no documentation for large purchases

• chaotic accounting around owner distributions

When your books are unclear, your tax return becomes unclear — and unclear returns get attention.

4. Taking Distributions While Showing a Loss

This one confuses a lot of business owners.

If your P&L shows a loss, but you’re still issuing large distributions to yourself, the IRS may ask questions.

Why?
Because distributions should come from profits, not loans, not future earnings, and not “because I needed it.”

Consistent distributions with inconsistent profit is a compliance issue.

5. Not Filing or Paying Payroll Taxes Correctly

Payroll mistakes are one of the fastest ways to trigger an audit — or worse, IRS penalties.

Your S-Corp must handle:

• quarterly payroll tax filings

• timely payroll tax payments

• W-2s at year-end

• withholding and remitting federal and state taxes

Missing deadlines or filing incorrectly is a major red flag.

6. No Accountable Plan for Reimbursements

If you’re paying business expenses out of pocket and the company is reimbursing you, those reimbursements need documentation.

Without an accountable plan, reimbursements can be treated as taxable income — which affects payroll and salary.

The IRS only respects reimbursement when it’s backed by:

• receipts

• proof of business purpose

• timely submission

• a written policy

A missing paper trail is a compliance problem.

How to Stay Compliant as an S-Corp

Here’s what keeps your S-Corp running smoothly:

✔ Pay yourself a reasonable salary—through payroll

Not through random transfers or draws.

✔ Keep clean, separate business books

No commingling. No shortcuts.

✔ Document reimbursements and classifications

Everything should match your tax return.

✔ Keep payroll current and accurate

Late or missing payroll taxes cause the biggest penalties.

✔ Review distributions regularly

Make sure they’re coming from real profit.

Final Thoughts

S-Corps come with powerful tax benefits — but only when you follow the rules.
Every red flag on this list is avoidable with the right setup, proper bookkeeping, and consistent payroll.

If you want to make sure your S-Corp is compliant — or you’re thinking about electing S-Corp status and want to do it correctly from day one — I can help you review your structure and get everything set up the right way.