Converting an LLC into a corporation is usually tax-free under Section 351. Going the other direction — corporation back to LLC — is not the mirror image, and treating it that way is one of the more expensive assumptions a business owner can make.
The Reverse Conversion Is Treated as a Liquidation, Not a Conversion
Regardless of the state-law mechanism used (statutory conversion, merger into a newly formed LLC, or a straight asset transfer), the IRS treats a corporation becoming an LLC as if the corporation liquidated: it is deemed to have sold all of its assets at fair market value under Section 336, then distributed the proceeds to shareholders under Section 331. That deemed sale can trigger corporate-level gain on appreciated assets — equipment, real estate, goodwill — even though no actual buyer or sale ever happened.
C-Corps Face the Double Tax Coming and Going
A C-corp converting to an LLC pays corporate-level tax on the deemed asset sale, and then shareholders pay a second, separate tax when they receive the liquidating distribution — the same double-taxation structure that makes C-corps unattractive for many small businesses, except now it hits all at once instead of spread across years of dividends.
S-Corps Aren’t Automatically Safe Either
An S-corp converting to an LLC is still treated as a taxable liquidation at the shareholder level, even though S-corps generally avoid entity-level tax. If the S-corp was previously a C-corp, appreciated assets held over from that period can trigger built-in gains tax if the liquidation happens within five years of the S election — a trap for businesses that converted to S-corp status specifically to avoid double taxation, only to walk back into it by dissolving into an LLC too soon. Equipment and other depreciated property can also trigger depreciation recapture, taxed as ordinary income rather than capital gain.
Why Someone Would Still Do It
Owners typically pursue a reverse conversion to get pass-through taxation without the S-corp’s ownership and stock-class restrictions, to simplify a structure that no longer needs corporate formalities, or because the original reason for incorporating (raising institutional capital, pursuing QSBS treatment) no longer applies. The tax cost of the deemed liquidation has to be weighed against those benefits before converting, not discovered afterward on the next return.
Run the Numbers Before Converting, Not After
Because the deemed-sale gain is calculated on the full fair-market-value appreciation of every corporate asset, a business that has grown significantly in value since incorporating can generate a tax bill on the conversion that dwarfs whatever administrative savings the LLC structure was expected to provide. A real appraisal or basis study before converting is what separates a planned decision from an expensive surprise.
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Related reading: Converting an LLC to a Corporation: Statutory Conversion and Tax Effects and C-Corp Double Taxation: How It Actually Works.
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