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Natalie C. Papagni, CPA - Tax, Planning & Advisory Services
4275 Executive Square Suite 200
La Jolla, CA 92037
(858) 754-8277

Whether you are a physician, attorney, advisor, consultant or small business, an S-corporation election can be one of the highest-impact tax decisions you make in California. We model, implement, and manage S-corporations for clients in La Jolla, greater San Diego and California.​ ​​
What are the tax benefits of an S-corporation in California?
An S-Corporation election allows the owner-shareholders to receive reasonable W-2 compensation and take additional income from the business in the form of distributions *, with only W-2 compensation being subject to payroll tax.
Additional benefits include eligibility for the California PTET election and expanded business deduction opportunities.
* Shareholder basis may not be reduced below $0.
S-Corporation Tax Planning, Compliance & Advisory Services
Tax Strategy & Planning
• Reasonable compensation analysis & W-2 setup
• Distribution vs. wage optimization
• Solo 401(k) + cash balance plan layering
• California PTET election
• QBI §199A deduction optimization
• Bonus depreciation & Section 179
• 2025 tax law planning
• Multi-entity income structuring
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Tax Compliance
• S-corp election (Form 2553) & late elections
• 1120-S / California 100-S preparation
• Shareholder basis & AAA tracking
• Payroll setup & quarterly filings
• Officer W-2 & K-1 coordination
• M-2 / AAA account maintenance
• Accounting reconstruction
• Amended return preparation
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Frequently Asked Questions (FAQs)
How much can an S-corporation save in California?
For a business with $50,000 +/- and growing net income, many business owners find payroll tax savings and additional benefits of an s-corporation election attractive. When combined with a Solo 401(k) (or other retirement plan), potentially a cash balance plan, California PTET election, the QBI deduction, home office, business automobile, depreciation strategies and distributions an optimal way to optimize the benefits of business ownership.
When does an S-corp election make sense vs. staying a sole proprietor or LLC?
An S-corporation generally becomes cost-effective when net business income exceeds $40,000–$60,000 annually. California S-corps carry a minimum $800 franchise tax and gross receipts fee, plus payroll compliance costs — all of which must be modeled against actual income before electing. We run this analysis before making any recommendation.
Can a physician use an S-corp for locums or private practice income in California?
Yes. California physicians earning $30,000+ in 1099 locums or private practice income frequently benefit from an S-corp structure. The S-corporation provides payroll tax savings on distributions, Solo 401(k) eligibility on top of any hospital 403(b)/457(b) plans, and California PTET election credits. California’s professional corporation rules require a medical corporation (PC) structure for licensed physicians.
What is a reasonable salary for an S-corporation owner in California?
Reasonable compensation generally reflects market-based wages for services actually performed by shareholder-employees. The IRS closely examines situations where shareholder distributions substantially exceed W-2 compensation, particularly in highly profitable businesses. Factors considered may include industry standards, duties performed, geographic region, hours worked, training, collections generated, and comparable compensation data. Proper analysis and documentation help reduce audit exposure.
What is an accountable plan and and why does every S corporation need one?
An accountable plan is an IRS-approved reimbursement arrangement allowing businesses to reimburse qualifying employee business expenses without treating reimbursements as taxable wages. Properly structured accountable plans may allow reimbursement of home office expenses, business mileage, internet costs, mobile phone usage, travel expenses, and
other qualifying business expenditures. Documentation and substantiation requirements remain essential. Without one, those reimbursements are taxable wages. It's one of the simplest, most overlooked S corporation deductions, and it requires documentation: business purpose, substantiation, and timely reimbursement.
How does the PTET election work for an S corporation?
A California S corporation elects PTET annually on a timely filed return, pays 9.3% of each consenting shareholder's pro-rata income at the entity level, and deducts that payment federally. Shareholders claim a nonrefundable California credit. Two deadlines matter: a prepayment of the greater of $1,000 or 50% of the prior-year PTET by June 15, and the balance by the return due date. Missing the June 15 payment forfeits the election for the year.
What retirement plans can an S corporation owner use?
Options include a solo 401(k) employee deferrals plus employer profit-sharing up to the annual combined limit for 100% shareholders and husband + wife businesses, profit-sharing contributions of up to 25% of W-2 compensation, for maximum deferral (2026) of %50,000 (under 50), $72,000 (age 50-59 or 64+) and $83,250 (60-63). Cash balance plans can be stacked on top. Because employer contributions are based on W-2 wages, retirement goals should drive the reasonable compensation analysis, not the other way around.
Why does shareholder basis tracking matter?
Stock and debt basis determines whether S corporation losses are deductible and whether distributions are tax-free. Distributions in excess of basis are taxed as capital gain, and losses beyond basis are suspended. The IRS now requires Form 7203 with many individual returns. Accurate, year-by-year basis schedules are essential — reconstructing basis years later is expensive and often imprecise.
How should S corporation distributions be planned?
Distributions should be coordinated with reasonable compensation, shareholder basis, and cash flow — not taken ad hoc. Best practice is a documented salary supported by comp data, distributions taken only after payroll obligations are met, and a year-end review confirming distributions don't exceed basis. Proportionality matters too: disproportionate distributions among shareholders can jeopardize the S election.
How can S corporation owners maximize the QBI deduction?
The Section 199A qualified business income deduction allows up to a 20% deduction on pass-through income, but physicians and other specified service businesses face a phase-out at higher taxable income levels. Planning levers include retirement plan contributions and PTET payments to manage taxable income, the W-2 wage limitation, and coordinating salary levels — since owner wages reduce QBI but also support the wage limit. The right balance is individualized.
Does an S corporation owe taxes in more than one state?
If the corporation has nexus — employees, property, or sufficient revenue in another state — it may owe tax and apportion income across states. Owners may then face nonresident filing obligations, composite return options, and varying PTET regimes state by state. Multi-state S corporations need coordinated entity and individual planning to avoid double taxation and missed credits.
How do I plan a tax-efficient exit from my S corporation?
Exit planning starts years ahead: cleaning up basis records, evaluating asset versus stock sale structures, considering personal goodwill allocations, timing the transaction around income and PTET elections, and — in California — planning for the state tax bite on the gain. Whether the exit is a third-party sale, associate buy-in, or wind-down, early structuring drives the after-tax result.
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Natalie C. Papagni, CPA
Tax, Planning & Advisory Services
4275 Executive Square Suite 200
La Jolla, CA 92037
(858) 754-8277

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