When a closely held corporation lends money to one of its owners, the IRS rules for a shareholder loan come down to a single question: does the transaction look and function like real debt? If it does, the money moves tax-free and only the interest is taxable. If it doesn’t, the IRS can recharacterize the whole balance as a dividend, a distribution, or wages, and tack on a 20% accuracy-related penalty for the trouble.
The risk is not theoretical. Reclassification creates double taxation in a C corporation, surprise payroll taxes in an S corporation, and back interest running from the original return’s due date. The rules below are what separates a loan the IRS will respect from one it will unwind.
What Makes It a Real Loan
Courts have built a multi-factor test over decades of litigation, and an IRS practice unit summarizing those cases lists the factors examiners actually check: a written instrument, a stated interest rate and maturity date, enforceability under state law, a reasonable expectation of repayment, meaningful remedies on default, and actual adherence to the agreement’s terms.1Internal Revenue Service. Valid Shareholder Debt Owed by S Corporation No single factor controls the outcome, but failing several at once usually sinks the loan.
Start with a written promissory note. It should state the principal, the interest rate, a fixed repayment schedule with specific due dates, and a maturity date. Language like “payable on demand” or “when the shareholder is able” invites reclassification because it signals the corporation never expected to collect. The schedule also has to be realistic. A $500,000 note with $200-a-month payments and no balloon looks like a loan nobody intended to repay.
The shareholder then has to actually make those payments, and the corporation has to actually enforce the terms. Missed payments that go unchallenged are one of the strongest signals that the advance was a distribution in disguise. If the shareholder falls behind, the corporation should send a formal demand letter or charge a late fee, the way an unrelated lender would.
Collateral is not required, but pledging shareholder assets strengthens the case. A security interest gives the corporation a real remedy on default and shows both sides treated the arrangement as a genuine obligation. The board should also formally authorize the loan in corporate minutes or a resolution. This step is easy to skip and just as easy for an auditor to spot; without it, the transaction looks like an informal withdrawal rather than a deliberate extension of credit.
The Interest Rate Rule
Section 7872 of the Internal Revenue Code requires the loan to carry interest at least equal to the Applicable Federal Rate the IRS publishes each month.2Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans With Below-Market Interest Rates The AFR has three tiers: short-term for loans of three years or less, mid-term for loans over three years and up to nine, and long-term for loans beyond nine years. The current month’s rate is what matters, and it needs to compound at least semiannually.
Set the stated rate at or above the AFR for the loan’s term and the interest problem goes away. Charge less and the IRS imputes the difference, creating taxable income nobody actually received in cash.
The $10,000 De Minimis Exception
Small loans escape Section 7872 entirely. If the aggregate balance of all loans between the corporation and the shareholder stays at or below $10,000 on any given day, the below-market interest rules do not apply for that day.2Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans With Below-Market Interest Rates A modest, interest-free advance under that threshold creates no phantom income.
Two things kill the exception. One is a tax-avoidance purpose: structuring multiple sub-$10,000 loans to stay under the limit, or using a zero-rate loan to shift income, loses the protection. The other is simply crossing the line. The moment aggregate loans between the same shareholder and corporation exceed $10,000, even briefly, the exception disappears.
Demand Loans vs. Term Loans
The statute treats the two kinds of loans differently. A demand loan is any loan payable in full whenever the lender asks, and loans with indefinite maturity dates fall into the same bucket. Everything else is a term loan.
For a demand loan, the applicable rate is the federal short-term rate, and it floats with each month’s publication. The IRS treats any forgone interest as transferred from the corporation to the shareholder and retransferred back as interest on December 31 of each year the loan is outstanding. For a term loan, the AFR is locked in on the day the loan is made using the rate that matches the loan’s duration. The tax hit comes up front: the corporation is treated as having transferred the present-value discount to the shareholder on day one, and the loan carries original issue discount that accrues over its life.2Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans With Below-Market Interest Rates
How Forgone Interest Becomes Phantom Income
The gap between the AFR amount and whatever the loan actually charges is forgone interest. The IRS treats that gap as two simultaneous events: the corporation pays the shareholder (usually a constructive dividend or compensation), and the shareholder immediately pays the same amount back as interest.
Both sides end up with phantom income. The corporation reports interest income it never collected. The shareholder reports a distribution or dividend equal to the forgone interest. The shareholder can sometimes deduct the imputed interest payment, but only if the loan proceeds were used for investment or business purposes. Money used for personal expenses yields a taxable transfer with no offsetting deduction. Charging at least the AFR eliminates the whole mess, which is why skipping this step is the single most common and most avoidable mistake.
What Reclassification Costs You
If the IRS concludes the advance was never a real loan, the full principal is recharacterized as a transfer of value on the date it was made. The downstream consequences depend on the corporate structure.
C Corporation: Constructive Dividend and Double Tax
In a C corporation, the reclassified balance becomes a constructive dividend to the extent of accumulated or current earnings and profits under IRC Section 316.3Office of the Law Revision Counsel. 26 USC 316 – Dividend Defined The shareholder pays tax at qualified dividend rates on money the corporation already paid corporate income tax on.4Internal Revenue Service. Topic No. 404 Dividends and Other Corporate Distributions Constructive dividends are not deductible by the corporation, so there is no offsetting tax benefit on the corporate side. If the amount exceeds earnings and profits, the excess reduces the shareholder’s stock basis tax-free, and anything beyond basis is capital gain.
S Corporation: Distribution or Disguised Wages
For S corporations, the reclassification splits two ways depending on whether the shareholder was performing services for the business.
Treated as a distribution, the advance follows the Section 1368 ordering rules. For an S corporation without accumulated earnings and profits from a prior C period, the distribution reduces the shareholder’s stock basis dollar for dollar and is tax-free up to that basis; anything beyond becomes capital gain.5Office of the Law Revision Counsel. 26 USC 1368 – Distributions The basis reduction under Section 1367 also limits the shareholder’s ability to deduct pass-through losses in current and future years; losses on the Schedule K-1 that exceed remaining basis are suspended until the shareholder restores it.6Office of the Law Revision Counsel. 26 USC 1367 – Adjustments to Basis of Stock of Shareholders, Etc.
The worse outcome is recharacterization as disguised compensation. The IRS has stated plainly that S corporations should not use loans or distributions to avoid paying employment taxes on officer compensation.7Internal Revenue Service. Wage Compensation for S Corporation Officers This outcome is especially likely when the shareholder works in the business, takes a low salary or none at all, and regularly pulls cash out as “loans.” If the advance is deemed wages, the full amount becomes subject to ordinary income tax, the employer’s share of Social Security and Medicare, and federal unemployment tax, plus the employee’s share of payroll taxes the corporation failed to withhold.8Internal Revenue Service. S Corporation Employees, Shareholders and Corporate Officers
If the Corporation Forgives the Loan
Writing off a shareholder loan does not solve the problem. When a corporation cancels a shareholder’s debt, the IRS generally treats the forgiven balance as a constructive dividend (C corporation) or a distribution (S corporation) rather than ordinary cancellation-of-debt income. The shareholder-corporation relationship makes the forgiveness a transfer of value from the company to the owner, and the same tax treatment applies as in the reclassification cases above.
In a C corporation, that means dividend treatment up to earnings and profits, carrying the same double-taxation hit. In an S corporation, the forgiven balance runs through Section 1368 ordering, potentially consuming basis and creating capital gain on any excess. If the shareholder was providing services, the IRS may treat part or all of the forgiven balance as compensation and trigger payroll taxes. Forgiveness also removes the receivable from the corporate balance sheet, which can complicate future lending or valuations.
Penalties and Interest
The reclassified tax is only the start. The IRS typically assesses an accuracy-related penalty of 20% of the underpayment when it finds a shareholder loan was really a distribution or compensation. The penalty applies to underpayments caused by negligence, disregard of rules, or a substantial understatement of income tax. For individuals, a substantial understatement means an underpayment exceeding the greater of 10% of the correct tax or $5,000.9Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments
Interest runs from the original due date of the return, not from the date the IRS catches the problem. For a loan made several years back, that interest compounds quickly. If the recharacterization is to compensation, the corporation also faces penalties for failing to withhold employment taxes and failing to file the required payroll forms. A single reclassified loan can produce a cascade of penalties on both the corporate and individual returns across multiple years.
Reporting and Records to Keep
The loan should sit on the corporation’s balance sheet as a receivable, classified current or long-term based on the repayment schedule. Both the corporation and the shareholder should keep a payment ledger showing each payment date, the principal-and-interest split, and the running balance. The ledger, the promissory note, the board resolution, and bank records of actual payments together form the documentary backbone of the loan’s bona fide status.
Interest the corporation receives is ordinary income on the corporate return. A C corporation reports it on Form 1120.10Internal Revenue Service. Form 1120 – U.S. Corporation Income Tax Return An S corporation reports it on Form 1120-S, where it flows through to shareholders on Schedule K-1.11Internal Revenue Service. Schedule K-1 (Form 1120-S) – Shareholder’s Share of Income, Deductions, Credits, Etc.
The shareholder paying that interest may be able to deduct it, but only based on how the proceeds were used. Interest on funds used for investment may qualify as investment interest expense, subject to the net investment income limitation. Interest on funds traced to a business use may be deductible as a business expense. Interest on funds spent personally is not deductible. Records tracing the loan proceeds to their actual use are essential to support any deduction.
If the IRS reclassifies the loan as a dividend in a C corporation audit, the corporation must issue a Form 1099-DIV reflecting the amount. The filing threshold for dividends is $10.12Internal Revenue Service. Instructions for Form 1099-DIV If the recharacterization is to S corporation compensation, the corporation must issue a corrected or original Form W-2 reflecting the amount as wages subject to income tax and employment tax withholding.7Internal Revenue Service. Wage Compensation for S Corporation Officers The corporate return and any related payroll returns must then be amended or filed to match.