The answer depends less on the entity type than on whether the client is considered to be doing business in California and how much income is apportioned there. Once California nexus exists, the state is generally not a jurisdiction you can structure around with simple entity choices.
Here's the practical overview:
| Entity | California cost |
|---|
| C corporation | Greater of 8.84% of California taxable income or $800 minimum franchise tax (after the first return for newly qualified corporations). |
| S corporation | 1.5% of California net income, with an $800 minimum (again, generally after the first return for a newly qualified corporation). |
| LLC (partnership/disregarded) | $800 annual tax plus an additional LLC fee once California-source total income exceeds statutory thresholds (starting at $250,000). |
The "$800 franchise tax" gets the attention, but for growing businesses the more significant issue is often California income apportionment.
Structuring options that can reduce exposure
1. Keep California activities limited where commercially feasible
- If expansion consists only of selling to California customers from outside the state, California filing may not automatically follow. However, employees, offices, inventory, contractors with sufficient authority, or exceeding economic nexus thresholds can create filing obligations. Once the business is "doing business" in California, apportionment rules apply.
2. Operate through the existing entity rather than creating a California subsidiary (sometimes)
- A separate California subsidiary does not necessarily eliminate California tax.
- Depending on the facts, a single multistate operating company may produce simpler compliance than multiple entities.
- Conversely, if the California operation has distinct risks or investors, a subsidiary may still make business sense even if it doesn't materially reduce tax.
3. Pay close attention to sourcing of receipts
California uses market-based sourcing for many services, so where the customer receives the benefit of the service matters. Structuring contracts, delivery, and operations without understanding these rules can unintentionally increase California receipts.
4. Consider whether an LLC is actually the right vehicle
For profitable businesses, California LLCs can become relatively expensive because of:
- the $800 annual tax; and
- the additional LLC fee based on California total income.
Many advisers compare an S corporation against an LLC once California operations become meaningful. The right answer depends on payroll, owner compensation, and expected California income.
Common misconception
A frequent misconception is that forming in Delaware, Nevada, Wyoming, or another state avoids California tax. It generally does not. If the business is doing business in California, a foreign entity typically must register there and becomes subject to California's tax regime regardless of its state of formation.
Planning opportunities before expansion
If the client is planning ahead, I'd focus on:
- when California nexus first arises;
- where employees and contractors will be located;
- whether inventory or offices will be maintained in California;
- how service revenue is sourced;
- whether a separate entity is needed for liability or investment reasons rather than tax savings.
Those decisions often have a much larger tax impact than choosing between Delaware versus another formation state.
If you can share:
- the current entity type (LLC, S corp, C corp, partnership),
- the home state,
- the expected California activity (employees, office, warehouse, remote workers, or just customers), and
- approximate annual California revenue,
I can outline the likely California tax exposure and discuss structures that are commonly considered for that fact pattern.
