S-Corp Election — The Single Biggest Savings for Consultants

Most solo consultants and small consulting firms in LA start as single-member LLCs. That’s fine for legal protection, but for taxes it’s a pass-through — all your profit gets hit with self-employment tax at 15.3% on the first $168,600 (2024) and 2.9% above that, plus the 0.9% Additional Medicare Tax above $200,000.

Electing S-corp status (Form 2553) changes the math. You pay yourself a reasonable W-2 salary — say $150,000 for a consultant billing $400,000 — and take the remaining $250,000 as a distribution. That distribution isn’t subject to self-employment tax. The savings? Roughly $20,000 to $35,000 per year, depending on the numbers.

California charges an $800 minimum franchise tax on S-corps plus a 1.5% tax on net income. So there’s a cost to the structure. But for any consultant netting above $80,000 or so, the self-employment tax savings far outweigh the California franchise tax.

Deductions That Consulting Firms Actually Use

Consultants don’t have inventory or heavy equipment, so the deductions tend to cluster around a few categories. Home office is the big one for LA-based consultants who work from home — and the home office deduction includes a proportional share of your rent or mortgage interest, utilities, internet, and renter’s/homeowner’s insurance. In LA, where a two-bedroom apartment might run $3,500/month, the home office deduction on a dedicated 200-square-foot room in a 1,000-square-foot apartment could be worth $8,400/year in deductible rent alone.

Travel is the other major category. Client visits, conferences, industry events — LA consultants flying to client sites around the country can rack up $15,000 to $30,000 in deductible travel. Meals with clients are 50% deductible. Keep the receipts and note who you met with and why. The IRS expects contemporaneous records, not a shoebox of credit card statements at year-end.

Professional development, software subscriptions (Slack, Notion, project management tools), professional liability insurance, and subcontractor payments round out the typical list. If you’re hiring 1099 subcontractors, make sure you’re filing Form 1099-NEC for anyone you pay $600 or more — the penalties for not filing are $310 per form in 2024.

Quarterly Estimated Taxes — Don’t Get Caught Short

California doesn’t follow the same estimated tax schedule as the IRS. Federal quarterlies are due April 15, June 15, September 15, and January 15. California’s schedule requires 30% of your estimated annual tax in Q1, 40% in Q2, 0% in Q3, and 30% in Q4. That catches a lot of consultants off guard — they expect even quarterly payments and end up underpaying in Q2.

The underpayment penalty isn’t devastating, but it adds up. California charges roughly 7% annualized interest on underpayments. Federal penalties run around 8%. On a $50,000 underpayment, you’re looking at $3,000 to $4,000 in avoidable penalties and interest.

Multi-State Clients and Sourcing Rules

If you’re an LA-based consultant with clients in New York, Texas, and Illinois, where does your income get taxed? California uses market-based sourcing for service revenue — meaning your income is sourced to where the benefit of your services is received (i.e., where your client is), not where you perform the work.

This creates a strange situation. If 100% of your clients are outside California, you might argue that none of your service income is California-source. But the Franchise Tax Board doesn’t always agree, especially if you’re physically working from your LA home office. The rules are fact-specific and contested. We’ve seen the FTB audit this position aggressively for consultants claiming out-of-state sourcing.

States like New York have their own rules and may also want to tax that income if you’re performing work for NY-based clients. Dual taxation is a real risk, and credits for taxes paid to other states don’t always make you whole.