How does California pass-through withholding work for domestic nonresident owners?
Edvin Givargis Published 6 minute read
The short answer
A partnership, LLC, or S corporation with California-source income must withhold 7 percent of the distributions of that income it makes to a domestic nonresident owner, once total payments or distributions to that owner pass $1,500 in the calendar year, unless an exemption certificate or an approved waiver is in place. The withholding is remitted quarterly with Form 592-Q, reported annually on Form 592-PTE due January 31, and passed to the owner on a Form 592-B the owner uses to claim the credit. The regime, in Cal. Code Regs., tit. 18, section 18662-7, applies for taxable years beginning on or after January 1, 2020, and it is distribution-based: no distribution, no domestic withholding, whatever the owner's distributive share of income. Foreign, meaning non-U.S., partners are under a different and harsher rule, withholding on the distributive share itself at the owner's top marginal rate, distribution or not.
Who withholds, on whom, and on what
The withholding agent is the pass-through entity itself, and the rule reaches every entity type that passes income through: partnerships, limited liability companies taxed as partnerships or disregarded, and S corporations. The payees the regime targets are domestic nonresident owners, nonresident individuals, corporations without a California commercial domicile, and out-of-state trusts and estates, receiving distributions of California-source income. Residents, and entities with a sufficient California footprint, are taken out of the system by certification: a Form 590 exemption certificate covers California residents, entities qualified to do business in California or with a permanent place of business here, and tax-exempt organizations, and a properly collected Form 590 ends the entity's obligation with respect to that owner. A nonresident owner who cannot certify residence can still apply to the Franchise Tax Board for a waiver on Form 588, most commonly on the ground that the owner has a current California filing history, and an approved waiver likewise switches the withholding off.
The base is the distribution of California-source income, not the K-1 income allocation. An entity that allocates substantial California income but distributes nothing during the year has no domestic pass-through withholding obligation for that year; the obligation attaches when cash or property actually moves to the owner, and only to the California-source portion of it. The $1,500 threshold is a calendar-year cumulative trigger, not a per-payment one, and once total payments or distributions to an owner exceed it, the 7 percent applies to the excess. For an entity apportioning income both into and out of California, the source computation rides on the entity's own apportionment and sourcing work, which is where most practical difficulty lives; the withholding calculation is only as good as the California-source percentage behind it.
The compliance calendar
The forms run on their own cycle, and the January date is the one that gets missed. Withholding accumulated during the year is remitted with Form 592-Q by the quarterly due dates, April 15, June 15, September 15, and January 15 for the fourth quarter. The annual reconciliation, Form 592-PTE, is due January 31 of the following year, earlier than any income tax return the entity will file, and it is the form that allocates the year's withholding owner by owner. Each owner then receives a Form 592-B stating the amount withheld on its behalf, which is the document the owner attaches to claim the credit on its own California return. In tiered structures the withholding cascades by allocation rather than by refund: a lower-tier entity withholds on its nonresident owners, and an upper-tier pass-through that was itself withheld upon files its own Form 592-PTE to push the credit down to its owners in turn. The related article on withholding credits and K-1 mismatches covers what happens when the amounts reported on these forms and the owners' returns fail to line up, which remains the most common way this regime generates notices.
A brief word on lineage, because stale memos still circulate. When the Franchise Tax Board ran the interested parties process for this regulation in 2017, the draft on the table would have taxed the distributive share at the owner's highest marginal rate, the approach most states use. That is not what was adopted. The final regulation kept California's traditional 7 percent on actual distributions for domestic owners, and advice written from the proposal-era drafts overstates the regime. The distributive-share, top-rate model does exist in California law, but for foreign partners: withholding on a foreign partner's allocable share of effectively connected California-source income at the maximum applicable rate, currently 12.3 percent for individuals and 8.84 percent for corporations, reported on the Form 592-F series, with no distribution required. An entity with both a Nevada individual and a foreign parent in its owner group is running two different withholding systems at once, and the labels matter.
What the credit is worth, and what it is not
Pass-through withholding is a prepayment, not a tax. The 7 percent is credited against the owner's actual California liability, computed on the owner's distributive share under the sourcing and apportionment rules, and the difference runs in both directions: an owner whose effective California rate on the income exceeds 7 percent owes the balance with its return, and an owner over-withheld relative to its liability recovers the excess only by filing. That last point is the quiet enforcement engine of the whole regime; a nonresident who wants the withheld money back must file the California nonresident return the withholding was designed to encourage. The entity, for its part, is liable for amounts it should have withheld and did not, plus penalties and interest, which is why the Form 590 and Form 588 file is worth maintaining with the same discipline as resale certificates on the sales tax side: the certificates on hand at payment time are what stand between the entity and someone else's tax.
Practice notes
Three recurring errors account for most of the exposure in this area. The first is treating the domestic regime as distributive-share based, usually from a stale memo or by analogy to other states, which produces withholding in years with no distributions and, worse, its absence in high-distribution years when someone assumed the K-1 controlled. The second is the calendar: Form 592-PTE's January 31 due date arrives before most tax departments have opened the compliance season, and the fourth-quarter 592-Q on January 15 is earlier still. The third is the credit plumbing in tiered structures, where withholding done correctly at the bottom tier evaporates on the way up because an intermediate entity never filed the 592-PTE that allocates it; the money sits with the Franchise Tax Board while the ultimate owners receive notices for underpayment. On the planning side, the waiver and exemption machinery is underused: owners with clean California filing histories can typically obtain Form 588 waivers, and entities qualified in California should be handing their upper tiers Form 590 rather than absorbing withholding they will spend a year reclaiming. And because the entire computation keys off the entity's California-source determination, a sourcing position change, a new market-based sourcing analysis, an apportionment factor shift, should trigger a same-day look at the withholding settings, not a discovery at the following January's reconciliation.
This article states the law as of September 15, 2026
Statutes, rates, thresholds, and agency practice change, and a different set of facts can change the answer. Before acting on anything discussed above, contact G&G State Tax Group to confirm what has changed since this was written and how the rules apply to a specific situation.
G&G State Tax Group, LLC is a state and local tax advisory firm. The firm provides state and local tax consulting and representation in state and local tax controversies. G&G does not prepare or file tax returns, perform attest services, or provide bookkeeping, and is not a CPA firm.