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Writer's pictureNatalie C. Papagni

Should you Convert your C Corporation to an S Corporation?

Updated: Nov 12



Choosing the right business entity has many implications, including the amount of your tax bill. The most common business structures are sole proprietorships, partnerships, limited liability companies, C corporations and S corporations.


In some cases, a business may decide to switch from one entity type to another. Although S corporations can provide substantial tax benefits over C corporations in some circumstances, there are potentially costly tax issues that you should assess before making the decision to convert from a C corporation to an S corporation.


FOUR CONSIDERATIONS:


  1. LIFO inventories. C corporations that use last-in, first-out (LIFO) inventories must pay tax on the benefits they derived by using LIFO if they convert to S corporations. The tax can be spread over four years. This cost must be weighed against the potential tax gains from converting to S status.


  2. Built-in gains tax. Although S corporations generally aren’t subject to tax, those that were formerly C corporations are taxed on built-in gains (such as appreciated property) that the C corporation has when the S election becomes effective, if those gains are recognized within five years after the conversion. This is generally unfavorable, although there are situations where the S election still can produce a better tax result despite the built-in gains tax.


  3. Passive income. S corporations that were formerly C corporations are subject to a special tax. It kicks in if their passive investment income (including dividends, interest, rents, royalties, and stock sale gains) exceeds 25% of their gross receipts, and the S corporation has accumulated earnings and profits carried over from its C corporation years. If that tax is owed for three consecutive years, the corporation’s election to be an S corporation terminates. You can avoid the tax by distributing the accumulated earnings and profits, which would be taxable to shareholders. Or you might want to avoid the tax by limiting the amount of passive income.

  4. Unused losses. If your C corporation has unused net operating losses, they can’t be used to offset its income as an S corporation and can’t be passed through to shareholders. If the losses can’t be carried back to an earlier C corporation year, it will be necessary to weigh the cost of giving up the losses against the tax savings expected to be generated by the switch to S status.


OTHER ISSUES


These are only some of the factors to consider when switching a business from C to S status. For example, shareholder-employees of S corporations can’t get all the tax-free fringe benefits that are available as a C corporation. And there may be issues for shareholders who have outstanding loans from their qualified plans. These factors must be taken into account in order to understand the implications of converting from C to S status.


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If you have questions and would value professional insight and guidance regarding 2024 year-end tax planning, filing your 2024 individual, business and / or trust tax returns and our 2025 - 2026 strategic tax planning process, reach out and get our conversation started. We are here to help!


 

Cobalt PacWest Advisors La Jolla

8910 University Center Lane

La Jolla, CA 92122

858.754.8277 

 


Cobalt PacWest Advisors Irvine

3333 Michelson Drive

Irvine, CA 92612

949.287.8337

 





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