Can an S corp get a tax refund from the IRS? In most years, no, because an S corporation pays no federal income tax in the first place, so there is nothing to overpay. The entity can receive a federal refund in its own name only when it owes one of a few special taxes tied to its history as a C corporation and overpays that liability through estimated payments. The refund most S corporation owners actually see arrives on their personal Form 1040, not on anything filed by the business.
Why the Entity Usually Has Nothing to Refund
An S corporation is a domestic corporation that has elected pass-through status under Subchapter S of the Internal Revenue Code. It reports income, losses, deductions, and credits on Form 1120-S, which is an informational return.1Internal Revenue Service. S Corporations The return determines the company’s bottom line but produces no federal income tax bill at the entity level.
Each owner’s share of that bottom line is reported on a Schedule K-1 that the corporation issues to every shareholder.2Internal Revenue Service. Schedule K-1 (Form 1120-S) – Shareholders Share of Income, Deductions, Credits, etc. The shareholder reports those figures on Form 1040 and pays tax at their individual rate. Because the corporation’s own federal income tax liability is zero, there is normally no overpayment to trigger a check written to the business.
When an S Corporation Can Owe Federal Tax and Overpay It
Three federal taxes can land directly on an S corporation rather than its shareholders. Each one traces back to the company’s history as a C corporation. If the S corporation overpays any of these taxes through estimated deposits, the IRS refunds the difference to the business.
Built-In Gains Tax
When a C corporation converts to S status, appreciation already baked into its assets does not escape corporate-level tax. If the S corporation sells one of those assets within five years of the conversion, it owes tax on the gain that existed at the moment of the switch. That five-year window is the recognition period, and the statute defines it as starting on the first day of the first taxable year the S election takes effect.3Office of the Law Revision Counsel. 26 U.S. Code 1374 – Tax Imposed on Certain Built-in Gains – Section: Recognition Period The rate is the flat 21% corporate rate. Appreciation that occurred after the conversion is not subject to this tax and passes through to shareholders in the usual way.
Excess Net Passive Income Tax
An S corporation that still carries accumulated earnings and profits from its C corporation years can owe a separate entity-level tax if more than 25% of its gross receipts come from passive sources such as interest, dividends, rents, and royalties.4Office of the Law Revision Counsel. 26 USC 1375 – Tax Imposed When Passive Investment Income of Corporation Having Accumulated Earnings and Profits Exceeds 25 Percent of Gross Receipts The tax applies only to the excess passive income above the 25% threshold.
LIFO Recapture Tax
A C corporation that uses the Last-In, First-Out inventory method must recapture the difference between its LIFO inventory value and what the inventory would have been worth under First-In, First-Out. The full recapture amount is included in the corporation’s gross income on its final C corporation return, not spread over several years. The resulting tax increase is paid in four equal annual installments beginning with the due date of that final return.5Office of the Law Revision Counsel. 26 U.S.C. 1363 – Effect of Election on Corporation The income hits all at once, but the cash leaves over four years.
How the S Corporation Actually Claims the Refund
An S corporation that owes any of these taxes makes estimated payments during the year through the Electronic Federal Tax Payment System. Form 1120-W is an internal worksheet for calculating those estimates.6Internal Revenue Service. Form 1120-W (Worksheet) – Estimated Tax for Corporations The actual payments go through EFTPS.7Internal Revenue Service. Instructions for Form 1120-W Estimated Tax for Corporations
When Form 1120-S is filed and the final calculated tax on built-in gains or excess passive income comes in below what has already been deposited, the IRS refunds the difference. The check is made payable to the business. That is the only routine path to a federal income tax refund in the S corporation’s own name.
If an error turns up after filing, the corporation can file an amended Form 1120-S by checking box H(4) on page 1 and attaching a statement that identifies each corrected line with an explanation.8Internal Revenue Service. Instructions for Form 1120-S Corrected Schedule K-1s go to the affected shareholders. The deadline for claiming a refund is the later of three years from the date the return was filed or two years from the date the tax was paid.9Internal Revenue Service. Time You Can Claim a Credit or Refund Miss that window and the overpayment is gone.
Credits That Reduce Payroll Taxes Instead
Even without an income tax liability to overpay, an S corporation can lower its cash obligations through credits applied against payroll taxes. The effect in the bank account looks similar to a refund, though it is not technically an income tax refund.
The main example is the qualified small business research and development payroll tax credit. An eligible small business can elect to apply up to $500,000 of its R&D credit each year against the employer’s share of Social Security and Medicare taxes.10Internal Revenue Service. Qualified Small Business Payroll Tax Credit for Increasing Research Activities The election is made on Form 6765, attached to a timely filed income tax return, and the credit begins reducing payroll taxes in the first quarter after the return is filed. Any excess carries to the next quarter rather than generating a cash refund.
To qualify, the S corporation must have gross receipts of $5 million or less for the credit year and cannot have had gross receipts for more than five prior tax years. The election cannot be made on an amended return, so timing the original filing matters.10Internal Revenue Service. Qualified Small Business Payroll Tax Credit for Increasing Research Activities
Where the Refund Usually Shows Up: On the Shareholder’s Return
The refund most S corporation owners actually experience is a personal one. If a shareholder’s total payments exceed total liability on Form 1040, the IRS sends back the difference, just as with any individual return.
Shareholders cover tax on K-1 income by making quarterly estimated payments on Form 1040-ES or by increasing wage withholding.11Internal Revenue Service. About Form 1040-ES, Estimated Tax for Individuals K-1 income is not subject to automatic withholding, so estimated payments are where the planning happens. Overestimate, and a refund follows. Underestimate, and penalties apply.
To avoid the underpayment penalty, a shareholder must pay through combined withholding and estimated payments at least the smaller of 90% of the current year’s tax or 100% of the prior year’s. For shareholders with adjusted gross income above $150,000, the prior-year safe harbor rises to 110%.12Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty Many S corporation owners clear that threshold, so the 110% figure is the operative one for them. Owing less than $1,000 after withholding and credits also avoids the penalty.13Internal Revenue Service. Topic No. 306 – Penalty for Underpayment of Estimated Tax
Section 199A can enlarge that personal refund. Eligible shareholders may deduct up to 20% of qualified business income before calculating their personal tax. The deduction was originally set to expire after 2025 and was made permanent by the One, Big, Beautiful Bill Act signed into law in July 2025. Income limits and phase-outs apply for certain service-based businesses, so not every dollar of K-1 income qualifies.
State Refunds and the PTET Wrinkle
Federal pass-through treatment does not automatically carry over to the states, and the answer at the state level is different. Many states impose their own entity-level taxes on S corporations, including franchise taxes, minimum annual taxes, and flat entity-level income taxes. Overpaying any of them through estimated payments produces a state refund paid directly to the business.
More than 30 states now offer an elective pass-through entity tax, under which the S corporation pays state income tax at the entity level rather than leaving it entirely to shareholders. The IRS confirmed in Notice 2020-75 that these entity-level state tax payments are deductible by the S corporation in computing federal taxable income and are not subject to the $10,000 federal cap on state and local tax deductions that applies to individuals.14Internal Revenue Service. Notice 2020-75 Shareholders then receive a credit or income exclusion on their state return for tax the entity paid on their behalf.
When an S corporation elects into one of these programs and overpays the entity-level state tax, the state refunds the overpayment to the business, not to the shareholders. That refund can then affect the next year’s federal calculations, since a state tax refund may be includable in income if the entity previously deducted the payment. An S corporation operating in multiple states should evaluate each program separately. Filing requirements, election deadlines, and credit mechanisms differ enough that what works in one state may be unavailable or structured differently in the next.