Editorial
About CCorpVsSCorp.com
An independent reference for what C-corporation vs S-corporation actually means in May 2026: federal tax mechanics, QSBS Section 1202, reasonable-salary case law, Form 2553 election deadlines, eligibility cliffs, 50-state recognition, and per-profile recommendations. No CPA-firm sales funnel, no formation-service rebranding, no aggressive reasonable-salary positions.
Why this site exists
C-corp vs S-corp content on the open web is dominated by two parties with conflicted incentives. Incorporation services (LegalZoom, Northwest, Bizee) push C-corp formation because the average customer LTV is higher. CPA firms push S-corp election because it sells payroll and Form 1120-S preparation. Neither party has a financial incentive to give a neutral answer, and neither party shows the breakeven math at the income tiers where the recommendation flips.
The relevant primary sources are scattered: IRS Publication 542 (corporations), IRS Form 1120 and 1120-S instructions, IRC Sections 11 (corporate tax), 1361 (S-corp definition), 1362 (election and revocation), 1374 (built-in gains), 1202 (QSBS), 199A (QBI deduction), and 531-537 (Accumulated Earnings Tax), the TCJA 21% flat corporate rate (Public Law 115-97), OBBBA 2025 changes (Public Law 119-21), Rev Proc 2013-30 late-relief procedure, Watson v Commissioner and Glass Blocks Unlimited reasonable-salary case law, BLS OEWS comparable-wage data, and 50 state revenue department pages for entity-level franchise treatment.
This site reduces those sources to a single, comparable decision framework, shows the math at common income tiers, and flags where the answer differs by state, by business type, or by investor profile. The audit goal is reproducibility: every number, citation, and recommendation on the site should be re-derivable from primary sources.
Who builds this
CCorpVsSCorp.com is built and maintained by Oliver Wakefield-Smith at Digital Signet, an independent reference-content studio. The site is part of a portfolio of cost and decision reference properties.
The prerequisite question (whether to incorporate at all) is covered at soleproprietorshipvsllc.com. The follow-on entity comparisons live at llcvsscorp.com and soleproprietorvsllc.com. Tax math beyond entity choice is covered at effectivetaxratecalculator.com and noincometaxstates.com. Exit-side valuation math is at saasvaluationmultiple.com.
Editorial position
This is a reference site, not a CPA firm, not a tax-attorney practice, not an incorporation reseller beyond the disclosed /formation-services and /payroll-and-bookkeeping pages, and not a consultancy lead-gen funnel. Comparison ordering on the head pages is determined by the tax math, not by any commercial relationship.
Where a number is contested between sources (e.g., the reasonable-salary defensibility threshold, the QSBS active-business-asset definition for SaaS, or the state of California QSBS conformity since AB 91), both ends of the range are shown with the assumption stated. Where a primary source is genuinely unclear (the post-OBBBA QBI mechanics during the implementing-regulation gap), the site flags the uncertainty rather than pick a single point estimate.
What this site covers
Editorial principles
Every cited section number, case name, revenue procedure, statutory rate, and state entity-tax figure on this site traces back to a primary source: IRS publications and form instructions, the Internal Revenue Code on Cornell LII, Tax Court opinions, state revenue department pages, BLS OEWS. Secondary references (Nolo, LegalZoom Education Center, SBA) are cross-checks, not authority.
There are no sponsored slots, premium positioning, or paid recommendations on /, /taxes, /qsbs, /reasonable-salary, /election, /eligibility, /states, /which-to-choose, /calculator, /conversion, /benefits-and-aet, or /dissolution. The C-corp vs S-corp answer is determined by tax math and statute, not commercial relationships.
The /formation-services and /payroll-and-bookkeeping pages are the only pages on this site that earn commission. Each carries above-the-fold disclosure. Comparison ordering on those pages is determined by price, speed, and 83(b) support, not commission rate.
Federal rates, state entity taxes, and form-instruction citations are re-verified against primary sources on the first business week of each month. The last verified label currently reads May 2026.
The verification date is held in one constant (LAST_VERIFIED_DATE) imported by every page. Footer text, schema dateModified, hero stamps, and disclaimers all read from that single source so cosmetic date refreshes are not possible without a real verification pass.
S-corp compliance overhead is included in the breakeven math, not netted out for marketing. The Watson v Commissioner reasonable-salary defensibility framework is shown in full, not reduced to the disproven 60/40 myth. QSBS California non-conformity, the 5-year built-in gains window, and the QBI 199A SSTB phase-out are flagged where they affect the recommendation.
Methodology in brief
Federal corporate rates and qualified dividend rates come from IRS Publication 542 and the Internal Revenue Code on Cornell LII. S-corp election deadlines, late-relief mechanics, and revocation procedure come from IRS Form 2553 instructions and Rev Proc 2013-30. Reasonable-salary defensibility uses the nine-factor IRS framework (Rev Rul 74-44, IRS Fact Sheet FS-2008-25 successor guidance) cross-referenced against BLS OEWS comparable-wage data. Watson v Commissioner (8th Cir 2012) and Glass Blocks Unlimited (T.C. Memo 2013-180) are the case-law anchors. State recognition is verified against each state revenue department's own pages.
For full source provenance, the calculation framework, in-scope / out-of-scope coverage, and the corrections process, see the methodology page.
Contact and corrections
Spotted a stale rate, a missing case-law citation, an outdated state entity-tax figure, or a vendor change we have not caught yet? Email [email protected] with the page URL and the primary source you would like cited. Substantive corrections are typically actioned within five business days.
Disclosures
- ●Comparison and calculator pages carry no affiliate links or referral fees.
- ●/formation-services and /payroll-and-bookkeeping are commission-disclosed monetisation pages; vendor ordering follows price and capability, not commission rate.
- ●No email-gated downloads, quote forms, or sales redirects on any page.
- ●Not affiliated with the IRS, SEC, any state filing office, any CPA firm, Stripe Atlas, Clerky, LegalZoom, Northwest Registered Agent, Bizee, Gusto, Rippling, ADP, Paychex, Bench, Pilot, or Collective.
- ●Calculator outputs are estimates only. Actual tax liability depends on facts not modelled: state personal income tax, SALT deduction interaction, NOL carryforwards, multi-state apportionment, and the QSBS exclusion itself.
For general educational purposes only. Not legal, tax, or financial advice. Corporate tax elections have significant and sometimes irreversible consequences. Consult a qualified CPA or tax attorney before making or changing an entity election.