How to Close an S Corp in California

An S corporation is a California corporation that has elected S status for federal tax purposes. Closing one means ending the corporation under the General Corporation Law and filing the final returns for both tax systems. California still taxes an S corporation at the entity level, at 1.5 percent of net income with an $800 minimum, so the state return deserves as much attention as the federal one.

This page covers the corporate steps. The accounts around the corporation, like payroll, the seller’s permit, and local licenses, are in my checklist for closing a California business. If your company is an LLC taxed as an S corporation, the entity steps are in how to dissolve an LLC in California and the tax steps are here.

What are the steps to close an S corp in California?

1. Shareholder vote electing to wind up and dissolve, usually by written consent.
2. Form 966 to the IRS within 30 days of the resolution.
3. Form ELEC STK with the Secretary of State, unless every share voted to dissolve.
4. Written notice by mail to known creditors and to any shareholder who didn’t vote for dissolution.
5. Wind up: finish contracts, collect receivables, sell assets, final payroll, and pay or provide for debts.
6. Distribute the remaining assets to shareholders.
7. Final returns: Form 1120-S with final K-1s, and Form 100S with the Final Return box checked.
8. Form DISS STK, signed by a majority of the directors, within 12 months of the final Form 100S.

Who has to approve dissolving an S corporation?

The shareholders, by at least half the voting power. Corp. Code § 1900(a) lets any corporation elect voluntarily to wind up and dissolve by the vote of shareholders holding shares representing 50 percent or more of the voting power.

The board can act alone only in three situations under § 1900(b): the corporation is in Chapter 7 bankruptcy, it has disposed of all its assets and done no business for five years before the resolution, or it never issued shares. An S corporation that’s been operating has shareholders, so the shareholder vote is the normal route.

In a one-owner S corporation, the owner signs a written consent as shareholder and a board resolution as director. In a two-owner company split 50-50, either owner alone holds 50 percent of the voting power. Check your bylaws and any shareholder agreement before anyone votes, because a buy-sell agreement may give the other owner a right to buy instead.

What if the shareholders are deadlocked?

Then the path runs through court, as an involuntary dissolution or a buyout fight. That’s litigation, and I don’t handle it. Shareholders in a dispute need litigation counsel, and I can refer you. My page on business divorce covers the negotiated exits that keep it out of court.

What forms does the Secretary of State require?

Two, or one if the vote was unanimous. There’s no fee for either, and an optional certified copy is $5, per the Secretary of State’s forms.

Form	When	What it says
ELEC STK, Certificate of Election to Wind Up and Dissolve	Right after a less-than-unanimous vote	That the corporation has elected to wind up and dissolve, and the number of shares that voted for it
DISS STK, Certificate of Dissolution	After winding up is complete	That the corporation is wound up, debts paid or provided for, assets distributed, and final returns filed or to be filed
DSF STK, Short Form Dissolution Certificate	Within 12 months of incorporating, with no business done and no shares issued	Rarely fits an S corporation, which by definition has shareholders

Corp. Code § 1901 requires the certificate of election to be filed once the corporation elects to dissolve. Under § 1901(c), if all the outstanding shares voted for dissolution and the certificate of dissolution says so, the separate certificate of election isn’t required. Form DISS STK has a box for that statement.

Corp. Code § 1905(a) sets what the certificate of dissolution states: the corporation has been completely wound up, its known debts have been paid or adequately provided for, its known assets have been distributed, it’s dissolved, and a final franchise tax return has been or will be filed with the FTB. A majority of the directors signs and verifies it. When it’s filed, the corporation’s powers, rights, and privileges cease under § 1905(b).

If any known debt is being handled by assumption or deposit instead of payment, § 1905(a)(2) requires the certificate to say who assumed it or where the money was deposited. Form DISS STK asks for that in an attachment.

What happens during winding up?

The corporation stops doing new business and settles the old. Under Corp. Code § 1903, voluntary winding up starts when the shareholders or directors adopt the resolution, or when a written shareholder consent is filed with the corporation. From then on, the corporation ceases to carry on business except as needed to wind up, or to preserve goodwill or going-concern value pending a sale.

The board must mail written notice that winding up has started to all known creditors and claimants whose addresses appear in the corporation’s records, and to shareholders who didn’t vote for dissolution. The board keeps full power to wind up and settle the corporation’s affairs, both before and after the certificate of dissolution is filed.

Corp. Code § 2001 lists what the directors and officers can do in the corporation’s name while winding up: employ agents and attorneys, continue the business as far as needed to wind it up, collect and settle debts, defend and bring lawsuits, sell assets, and sign bills of sale and deeds.

In what order do assets go out?

Creditors first. Corp. Code § 2004 directs the board to distribute the remaining assets among the shareholders according to their rights and preferences only after it determines that all known debts and liabilities have been paid or adequately provided for. An S corporation can have only one class of stock, so the remaining assets usually go out in proportion to shares held.

Are shareholders liable after the corporation dissolves?

Up to what they received. Corp. Code § 2011(a) lets a creditor pursue shareholders of a dissolved corporation for the lesser of their pro rata share of the claim or the assets distributed to them on dissolution. A shareholder’s total liability can’t exceed what the shareholder received.

Those claims are extinguished unless the creditor sues before the earlier of the statute of limitations or four years after the dissolution took effect. Keep the corporate records, the creditor notices, and the distribution schedule for at least four years.

The corporation also keeps a limited existence after dissolution. Corp. Code § 2010 continues a dissolved corporation to wind up its affairs, sue and be sued, and convey property, but not to continue business. An asset left out of the winding up stays in the corporation for the people entitled to it. If the corporation owns real estate, deed it out before dissolving.

What federal returns does a closing S corp file?

Form 966, a final Form 1120-S, and final K-1s. The Form 966 instructions say a corporation must file it within 30 days after adopting a resolution or plan to dissolve the corporation or liquidate any of its stock. If the plan is amended later, another Form 966 is due within 30 days of the amendment.

The IRS’s closing a business page says an S corporation files Form 1120-S for the year it closes, with the final return box checked, reports capital gains and losses on Schedule D, and checks the final K-1 box on each Schedule K-1. Form 4797 is needed if business property is sold, and Form 8594 if the business is sold.

How are liquidating distributions taxed?

In the usual S corporation case, the gain is taxed once, on the shareholders’ returns. First, the corporation recognizes gain or loss on property it distributes in complete liquidation as if it had sold the property to the shareholder at fair market value, under 26 U.S.C. § 336(a). For an S corporation, that gain flows through to the shareholders on their K-1s.

Second, each shareholder treats what they receive in the liquidation as full payment in exchange for their stock, under 26 U.S.C. § 331(a). The shareholder compares the cash plus the fair market value of property received with their stock basis, which the flow-through gain has already increased. Your CPA runs the basis numbers.

One exception matters. A corporation that converted from C to S status can owe an entity-level built-in gains tax on appreciation that existed at conversion, if the gain is recognized within the recognition period, which is the five-year period beginning with the first day of its first S corporation year under 26 U.S.C. § 1374(d)(7). If your company was ever a C corporation, tell your CPA before you distribute property.

What does the S corp file with the Franchise Tax Board?

A final Form 100S. Rev. & Tax. Code § 18601(d)(1) makes an S corporation’s return due by the 15th day of the third month after the close of its taxable year, which is March 15 for a calendar-year company. The FTB’s Publication 1038 adds the rest: file any delinquent returns, pay all balances, check the Final Return box and write “final” at the top of page one, and stop doing business in California after the final year.

California doesn’t follow the federal rule that an S corporation pays no entity-level income tax. Rev. & Tax. Code § 23802 keeps S corporations subject to the franchise tax at 1.5 percent of net income and to the minimum franchise tax. The minimum is $800 under Rev. & Tax. Code § 23153(d)(1). The gain from distributing appreciated property is part of the final year’s income, so it’s in the 1.5 percent base too.

When does the $800 minimum tax stop?

For the year after the final year, if you meet all three conditions of Rev. & Tax. Code § 23332(c): file a timely final franchise tax return, do no business in California after the end of that year, and file the certificate of dissolution with the Secretary of State within 12 months of filing the final return. Miss any one and the minimum tax keeps running.

Do I need a tax clearance certificate?

No. The FTB’s audit manual notes that under AB 2341, effective September 29, 2006, dissolving corporations no longer need a Tax Clearance Certificate from the FTB to complete dissolution with the Secretary of State. Form DISS STK instead contains a required statement that all final returns have been or will be filed with the FTB. Filing that statement when it isn’t true doesn’t make the tax go away.

A worked example

Dana owns 100 percent of Coastal Design, Inc., a calendar-year California S corporation in Camarillo, formed in 2019 and an S corporation since its first year. She decides to close at the end of 2026. After final payroll and paying vendors, the company has $60,000 in cash and design equipment worth $30,000 with a tax basis of $5,000. Its 2026 operating income before the distribution is $55,000.

Date	Step
November 2, 2026	Dana signs a unanimous shareholder consent electing to wind up and dissolve, and a board resolution adopting the plan.
By December 2, 2026	Form 966 filed with the IRS, within 30 days of the resolution.
November 2026	Notice of winding up mailed to the landlord, the equipment lessor, and two vendors with open accounts. No ELEC STK needed because every share voted.
December 2026	Final payroll, lease surrender, last vendor payments, and distribution of the $60,000 and the equipment to Dana.
December 2026	Form DISS STK filed, with the box checked that all shareholders voted for dissolution.
By March 15, 2027	Final Form 1120-S with a final K-1, and final Form 100S.

The distribution of the equipment triggers $25,000 of gain under 26 U.S.C. § 336 ($30,000 value less $5,000 basis). Coastal Design’s 2026 net income becomes about $80,000. The California tax at 1.5 percent is $1,200, which is more than the $800 minimum, so the 2026 Form 100S shows $1,200. The $80,000 flows through to Dana’s personal returns. Because she filed the final return on time, did no business in 2027, and dissolved within 12 months of the return, Coastal Design owes nothing for 2027.

Dana’s own capital gain or loss on the liquidation depends on her stock basis after the 2026 flow-through, which is her CPA’s calculation. The legal documents are the consent, the resolution, the creditor notices, the bill of sale for the equipment, and the DISS STK.

What if the corporation is suspended?

It has to be revived first. The FTB’s Publication 1038 says the Secretary of State can’t accept termination documents if the FTB has suspended or forfeited the entity. You file the delinquent returns, pay the balances, and file Form FTB 3557 BC to revive. My page on suspended corporations walks through it.

If the corporation has stopped doing business and has no assets, the FTB’s voluntary administrative dissolution program may help. A domestic corporation registered with the Secretary of State for more than 12 months can apply on Form FTB 3715 PC, and the FTB may abate unpaid qualified taxes, penalties, and interest once the Secretary of State dissolves the corporation. It doesn’t forgive taxes from the years the corporation was doing business, and it doesn’t itself dissolve the corporation.

What else should an S corp owner close out?

• Payroll. As a shareholder-employee you’re on payroll, so there’s a final W-2, final Forms 941 and 940, and the EDD’s 10-day closing rule. See the closing checklist.
• Retirement plan. A corporate 401(k) or SEP needs its own termination steps. If you’ll keep working as a sole proprietor, see solo 401(k) vs. SEP IRA.
• Loans from shareholders. A loan you made to the corporation is a debt, paid with the other creditors before any distribution on your shares.
• Your estate plan. If your trust holds the stock, the successor trustee provisions and the trust’s schedule of assets need updating once the company is gone. The S corp owner succession page covers what happens when an owner dies with the corporation still running.

If you’re closing because the S corporation no longer saves enough tax to justify the payroll and the 1.5 percent, compare the numbers first. My LLC vs. S corp page and the reasonable salary page explain the trade-offs.

Frequently asked questions

How much does it cost to dissolve an S corp in California?

The Secretary of State charges no fee for Form ELEC STK or Form DISS STK. The real costs are the final year’s franchise tax (the larger of 1.5 percent of net income or $800), your CPA’s fee for the final federal and state returns, and any remaining debts.

How long does it take to close an S corporation?

The Form 966 is due within 30 days of the resolution, and the final returns are due by the 15th day of the third month after the final year ends. Winding up a small company usually takes one to three months. The Secretary of State filing can happen as soon as winding up is complete.

Can I dissolve an S corp that has debts?

Yes, but the debts have to be paid or adequately provided for, or paid as far as the assets allow, before shareholders get anything. If the corporation can’t pay what it owes, talk to a bankruptcy or insolvency attorney before distributing any assets.

Do I have to pay the $800 in the year I dissolve?

Yes. The final year owes the larger of 1.5 percent of net income or the $800 minimum. What you avoid, by filing on time and dissolving within 12 months of the final return, is the following year’s tax.

What happens if I stop filing and walk away from the corporation?

The minimum tax, penalties, and interest keep accruing, and the FTB eventually suspends the corporation. A suspended corporation must be revived, which means paying the back years, before it can dissolve.

Do I need to file Form 966 for an S corporation?

Yes. The IRS instructions require a corporation to file Form 966 within 30 days after adopting a resolution or plan to dissolve. The instructions exclude qualified subchapter S subsidiaries and exempt organizations, not S corporations themselves.