S Corp or C Corp for a Manufacturing Company: How to Choose

A C corporation pays federal income tax at a 21 percent rate on its profits, and shareholders pay tax again when those profits are distributed as dividends. An S corporation does not pay federal income tax at the entity level; profits pass through to shareholders, who report them on their individual returns, subject to the qualified business income deduction where it applies.

For a profitable closely held manufacturer, an S corporation usually produces a lower annual tax cost when profits are distributed to the owner. A C corporation can be more attractive when earnings are retained and reinvested in equipment, facilities or inventory, because those retained earnings are taxed once at the 21 percent entity rate rather than at individual rates.

If the owner relies on the business to fund their personal cash flow, an S corporation passes income through to the owner's individual return, where it is taxed at individual rates, and the owner can take owner-employee compensation that must be reasonable for the work performed. If the company is growing and reinvesting most of its earnings, the C corporation's flat 21 percent rate on retained earnings can leave more capital inside the business.

There is no single right answer. The better structure depends on the company's actual circumstances, its capital needs and how the owner expects to be paid. A structure that fits a plant reinvesting heavily in capacity may not fit the same plant once it matures and starts distributing cash.

The One Big Beautiful Bill Act, signed July 4, 2025, made several changes that matter to manufacturers. The qualified business income deduction was made permanent, preserving a benefit for S corporation and other pass-through owners. Individual tax rates and brackets were made permanent, so the top individual rate stays at 37 percent rather than reverting to a higher rate. The Act also restored 100 percent bonus depreciation for qualified property placed in service after January 19, 2025, which is relevant to capital-intensive manufacturers in either form.

For owners planning an eventual stock sale, the Act expanded the qualified small business stock exclusion under Section 1202, which is available only to C corporations. Because these rules change, the entity decision should be reviewed against current law rather than a plan written years ago.

Exit planning can pull the entity decision in a different direction than day-to-day tax cost. A C corporation stock sale can qualify for the Section 1202 qualified small business stock exclusion, which may exclude a portion of the gain from federal income tax for stock issued after July 4, 2025 under the expanded limits. S corporation stock does not qualify for that exclusion.

Conversely, an asset sale by a C corporation can expose the proceeds to two layers of tax, one at the corporate level and one at the shareholder level, which is one reason exit-oriented owners weigh the structure carefully. Because the tax treatment of a sale depends on the specific facts and the structure in place, a manufacturer considering a future sale should model the after-tax outcome of each structure before committing.

The entity decision is not a one-time event. A manufacturer should review it when the business changes materially: when profits grow, when the owner's compensation needs change, when the company begins retaining significant earnings, or when a sale or succession appears on the horizon.

Pagac & Company works with entity structure as part of strategic tax planning, modeling the annual tax cost and the eventual exit under each form and applying only what current tax law permits. The goal is a structure that supports how the business actually operates, not a default choice carried forward without review.