| State income tax | 1% - 12.3% (plus 1% mental-health surcharge over $1M) |
| Pass-through entity tax election (SALT workaround) | Available |
| 1099-K state threshold below federal $20,000 | Federal floor only |
| Sales tax economic nexus | $500,000 |
California imposes a state personal income tax that flows through to pass-through business owners (sole-prop Schedule C income, partnership / S-Corp K-1 income, LLC pass-through). Rate range: 1% - 12.3% (plus 1% mental-health surcharge over $1M). California has the highest top marginal rate in the US (13.3% inclusive of the mental-health surcharge). C-Corps are subject to a separate state corporate income tax (rate often near or above the top individual rate). Verify current brackets and any recent rate changes against the California Franchise Tax Board.
This state offers a Pass-Through Entity (PTE) tax election as a workaround to the federal SALT deduction cap (created by the Tax Cuts and Jobs Act in 2017 and raised to $40,400 for 2026 by the One Big Beautiful Bill Act). Eligible pass-through entities (partnerships, S-Corps, LLCs taxed as one of those) may elect to pay state income tax at the entity level on owner shares; the entity-level state tax is then deductible as a federal business expense, bypassing the SALT cap at the individual level. Owners receive a state-level credit equal to their share of the entity-level tax paid. Election is annual; deadlines, computation, and credit mechanics vary by state. Consult a state-licensed CPA before electing.
This state has not enacted a 1099-K reporting threshold lower than the federal floor. The IRS applies the federal threshold (more than $20,000 in gross payments AND more than 200 transactions through a third-party settlement organization), which the One Big Beautiful Bill Act restored retroactively in July 2025; no phase-down to $600 applies as of October 2026. Sellers under that floor will not receive a 1099-K from platforms like PayPal, Venmo Business, eBay, Etsy, or Stripe. Note: receipt of a 1099-K does not change the underlying tax obligation; all business income is reportable regardless of whether a 1099-K is issued.
The state adopted economic-nexus rules following South Dakota v. Wayfair (2018). Remote sellers without physical presence trigger sales-tax collection obligations once they exceed the state's annual gross-receipts or transaction-count threshold, applied to prior or current calendar year. Marketplace facilitators (Amazon, eBay, Etsy, Walmart) collect on behalf of third-party sellers under separate marketplace laws.
The California threshold is more than $500,000 in sales of tangible personal property for delivery in California in the preceding or current calendar year, with no transaction-count test, as of October 2026. Verify current threshold structure and any state-specific carve-outs against the state Department of Revenue page linked below.
California LLC formation requires filing Articles of Organization (Form LLC-1) with the Secretary of State, $70 filing fee. The Statement of Information is filed biennially ($20). Every California LLC owes the $800 annual LLC franchise tax regardless of income (the first-year exemption applied only to tax years beginning 2021 through 2023; an LLC formed in 2024 or later owes the $800 for its first year), plus an additional LLC fee based on California-source gross receipts ($900 at $250k+ / $2,500 at $500k+ / $6,000 at $1M+ / $11,790 at $5M+).
California generally follows a state version of the federal estimated-tax safe-harbor framework. Most states allow individuals and pass-through owners to avoid an underpayment penalty by paying either (a) 100% of the prior year's state tax liability (110% if prior-year AGI exceeded a threshold, typically $150,000) or (b) 90% of the current year's state tax liability, through a combination of withholding and quarterly estimated payments. Quarterly estimated due dates align with federal (April 15 / June 15 / September 15 / January 15) in most states. Specific safe-harbor percentages, AGI thresholds, and underpayment-penalty rates vary by state; verify against the current state Department of Revenue instructions.
Once the threshold facts are clear, the next question is what they mean for your specific income mix. Use the S-Corp Election Calculator to test whether the salary/distribution split clears the federal break-even given California rates, the Income Tax Pipeline to model federal + California liabilities together, and the Reseller Profit Calculator for 1099-K-affected resale operations.
No. California has not enacted a 1099-K reporting threshold lower than the federal floor. Sellers will receive a 1099-K only if they exceed the federal threshold (more than $20,000 and more than 200 transactions, as restored by the One Big Beautiful Bill Act). All business income remains reportable on the federal and state return regardless of whether a 1099-K is issued.
Yes. California offers a PTE tax election. Eligible pass-through entities elect to pay state income tax at the entity level on owners' shares; the entity-level state tax is then deductible as a federal business expense, bypassing the individual SALT cap ($40,400 for 2026; it phases down toward $10,000 above $505,000 of income). Owners receive a state credit equal to their share. Election timing, computation, and credit rules vary; consult a California-licensed CPA before electing.
Remote sellers without physical presence in California must register and collect California sales tax once they exceed the state's annual threshold: more than $500,000 in sales of tangible personal property for delivery in California in the preceding or current calendar year, with no transaction-count test. Marketplace facilitators (Amazon, eBay, Etsy, Walmart) collect on behalf of third-party sellers under separate marketplace laws. Verify the current threshold structure against the California Department of Tax and Fee Administration.
California LLCs owe the $800 annual franchise tax every year (the first-year exemption covered only tax years beginning 2021 through 2023) plus an additional fee based on California-source gross receipts.
What a seller may claim, must disclose, and owes in tax is set by published federal rules rather than by any marketplace's seller handbook, and the sources below are the primary ones. They are linked so a reader can check a claim here without taking this page's word for it.
This page describes tools and the rules that apply to using them. A seller's own structure, state and marketplace agreements decide what applies to them.