The S-Corp payroll tax savings are real. So are the drawbacks — payroll compliance, K-1 documentation, limitations on ownership structure, and what happens to your funding application when the underwriter sees a minimal W-2 salary.
The S-Corp election reduces self-employment taxes on distributions above your salary. The flip side: you must run payroll, file a separate corporate return (1120-S) by March 15, document a 'reasonable' salary, and live with ownership restrictions that make the entity unsuitable for raising equity capital. Before you elect, know all six drawbacks — especially the ones that affect funding applications.
Brian's video runs through six real drawbacks of the S-Corp election — the things that don't show up in the "S-Corp saves you taxes!" social media content. This written companion takes the same six points and adds a layer: how each drawback shows up when you apply for business funding. The tax savings are real. So are the constraints.
S-Corp ownership is common among profitable small business owners. It's also one of the most frequently misunderstood business structures from an underwriting perspective. Lenders who routinely see S-Corp applications know what to look for — but owners who elected S-Corp without fully understanding the implications sometimes create documentation problems that slow or complicate funding applications.
Understanding the drawbacks before you elect gives you a cleaner path on both the tax side and the funding side.
Unlike a sole proprietorship or single-member LLC, S-Corp owner-employees must be paid through payroll. You cannot simply take all your income as distributions. This means:
The cost of payroll compliance — software, accountant time, or a dedicated payroll service — typically runs $500–$2,000+ per year for a one-person S-Corp. This is a real cost that must clear the threshold where your payroll tax savings exceed it.
S-Corps file Form 1120-S (irs.gov/forms-pubs/about-form-1120-s), an information return that reports the corporation's income, deductions, and K-1 shares to each shareholder. It's due March 15 for calendar-year businesses — two months before the personal return deadline. Missing this deadline triggers a late-filing penalty per month per shareholder.
New S-Corp owners routinely get caught off guard by the earlier deadline, especially if they're used to filing an April-deadline personal return. Talk to your accountant in January to establish the prep timeline.
The IRS requires S-Corp owner-employees to pay themselves a salary that is "reasonable" for the services they provide. Reasonable means what a third party would pay for the same work in the same industry and geography. You can't set your salary at zero or $1 to maximize distributions and minimize payroll taxes — the IRS actively audits this pattern.
For funding purposes, an unreasonably low W-2 salary creates an unusual documentation picture. A lender looking at a 1120-S showing $450K in revenue and a W-2 showing $12K in owner salary will have questions. The underwriter can add back K-1 distributions to get a full income picture, but the flagged compensation structure may trigger additional documentation requests or a deeper review.
By statute (per irs.gov/businesses/small-businesses-self-employed/s-corporations), an S-Corp cannot have more than 100 shareholders. While most small businesses will never approach this limit, it becomes relevant if you bring on multiple employee-shareholders over time, plan to raise capital from investors, or eventually consider selling to a private equity buyer.
S-Corps can only have one class of stock. This means no preferred shares with a liquidation preference, no participating preferred, no convertible notes that would convert to preferred stock. The investor terms that are standard in angel and venture capital rounds require multi-class equity structures — which an S-Corp cannot accommodate.
If you plan to raise outside equity capital at any point, an LLC (taxed as a partnership) or C-Corporation is the appropriate structure. Electing S-Corp status and then needing to undo it when investors come in adds legal complexity and transition cost.
S-Corps cannot be owned by corporations, partnerships, or (with narrow exceptions) trusts. They cannot have non-resident alien shareholders. This means:
None of this matters to a solo owner-operator with no plans to raise capital. It matters significantly if you're building a business you expect to sell or bring in partners.
The S-Corp election makes financial sense for many profitable small business owners. The payroll tax savings are real and compound over years. The drawbacks are also real: payroll compliance, an earlier corporate return deadline, the reasonable-salary requirement, and structural limitations on equity. Understanding both sides before electing prevents surprises — on the tax side and the funding side.
For the full formation process, see our companion post How to Form an S-Corp and What It Means for Your Funding Application. For the payroll mechanics, see S-Corp Payroll: The Reasonable Compensation Rule.
Start a funding application when your business is ready. ClearValue Lending is a funding platform — we route applications to the right lender, not a tax advisor. Consult a CPA before making entity-structure decisions.
Six key drawbacks: (1) Mandatory payroll — S-Corp owner-employees must be on payroll with W-2 wages, which adds payroll service costs and quarterly 941 filings. (2) Separate corporate return (1120-S) due March 15, with a different extension process than personal returns. (3) The IRS reasonable-compensation requirement — you can't minimize salary to zero; underpaying triggers IRS scrutiny and can result in back payroll taxes plus penalties. (4) The 100-shareholder limit and single-class-of-stock restriction — you can't issue preferred stock, which limits your ability to raise equity capital from investors. (5) Ineligible shareholders — S-Corps cannot have corporate shareholders, non-resident alien shareholders, or most types of trusts as owners. (6) The per-state compliance picture — some states don't recognize S-Corp status for state tax purposes, which can create state tax liability on top of federal.
Limited. An S-Corp can have up to 100 shareholders, all of whom must be U.S. citizens or resident aliens (no foreign investors), and the entity can only have one class of stock. This means you can't offer preferred shares with a liquidation preference or priority return — the structure that most venture capital and angel investors expect. If you plan to raise equity capital at any point, an S-Corp structure creates real constraints. An LLC taxed as a partnership (or C-Corporation for institutional venture investment) is more capital-raise-friendly.
If the IRS determines your salary was unreasonably low — meaning you took most of your income as distributions rather than wages to avoid payroll tax — it can reclassify distributions as wages and assess back payroll taxes, penalties, and interest. The IRS compares your salary to what a comparable employee would earn in your role, industry, and geography. Documentation matters: keep records of how you set your salary (industry surveys, compensation studies, CPA recommendation). Underpaying by a small amount isn't typically the audit trigger; taking zero salary or $10K when the business generates $400K in profit is.
Form 1120-S is due March 15 for calendar-year S-Corps — two months before the personal return (April 15) deadline. This earlier deadline catches many new S-Corp owners off guard. An extension to September 15 is available by filing Form 7004, but the extension is automatic and doesn't require explanation. However, because S-Corp K-1s must be issued to shareholders before they can complete their personal returns, a late 1120-S cascades into delayed personal return preparation. Plan the S-Corp return timeline with your accountant from your first year of operation.