California Partnership Tax Guide: Form 565, LLC Fees & CA PTET

California splits partnership filing into two forms, and which one you file depends on the legal wrapper around your business, not on how the IRS taxes it. A true general partnership or a limited partnership files Form 565, the Partnership Return of Income. A limited liability company that has more than one member and is treated as a partnership for tax purposes files Form 568, the Limited Liability Company Return of Income. Both forms report the same kind of pass-through numbers that land on the federal return, then hand each partner a share that ends up on that partner’s Schedule E, but the state keeps the two forms separate because LLCs owe a fee that ordinary partnerships do not. The first thing we check on any new California entity is which of these two it should be filing, because filing on the wrong form is a common mistake that surfaces when the Franchise Tax Board sends a notice.

Start with the federal picture, because California builds on top of it. A multi-member partnership files Form 1065 with the IRS as an information return, reporting total revenue, ordinary business expenses, and the resulting ordinary business income or loss, along with separately stated items like interest, capital gains, and section 179 deductions. The federal return does not pay tax itself. It divides the income among the partners and hands each one a Schedule K-1 showing that partner’s share. California starts from those same figures. Form 565 and Form 568 both carry the federal numbers over and then adjust them for the places where California law differs from federal law, of which there are many. The Form 1065 instructions explain what belongs on the face of the federal return versus what gets stated separately, and that breakdown flows straight into the California return.

Who actually has to file comes down to nexus and registration. A partnership or LLC that is organized in California, registered to do business in California, or doing business in California has a filing obligation, even if it had no income or even a loss for the year. Doing business is a broad test. It reaches an entity that is actively engaged in any transaction for financial gain within the state, and it also reaches an entity whose California sales, property, or payroll cross dollar thresholds the Franchise Tax Board adjusts each year. An out-of-state partnership with a single California partner can find itself filing here. So can an LLC formed in another state that registers with the California Secretary of State to operate locally. The reach is wider than most owners expect, and it catches a lot of people who assumed their home state was the only one that mattered.

The deadlines differ from the federal calendar in one direction you need to watch. For a calendar-year entity, both Form 565 and Form 568 are due by the 15th day of the third month after the close of the tax year, which is March 15. That matches the federal partnership deadline. California grants an automatic extension to file, pushing the filing deadline to September 15 for calendar-year filers, but the extension is to file, not to pay. Any tax, the annual minimum, or the LLC fee owed is still due by the original March deadline. An LLC in particular has an earlier separate due date for estimating its gross-receipts fee, which catches people who think the extension covers everything.

One trap worth naming. A single-member LLC in California is a disregarded entity for income tax, so it does not file its own Form 1065 federally, and its income lands on the owner’s personal return. It still files Form 568 in California and still owes the annual minimum tax and the gross-receipts fee. People assume disregarded means invisible to the state. It does not. The LLC obligation in California attaches to the entity itself regardless of how many members it has.

Getting the form right is the foundation for everything that follows. We sort out the federal-to-California mapping and keep the underlying records clean through our bookkeeping work, so the figures on Form 565 or Form 568 are a summary of accurate books rather than a year-end reconstruction. The entity-choice question behind which form applies, general partnership versus LLC, is one we walk through before anything gets organized through our tax strategy consulting service, because the form you file for the next decade is decided the day you pick the structure.

California charges LLCs two separate amounts, and confusing them is one of the most common errors we see on returns prepared without local knowledge. The first is the annual tax, a flat 800 dollars that almost every LLC and limited partnership doing business in California owes for the privilege of operating in the state. The second is the LLC fee, a tiered charge based on total California-source gross receipts that applies only to LLCs once their revenue crosses a threshold. These are not the same payment, they are due at different times, and they are calculated on completely different bases. An LLC with real revenue owes both, stacked on top of each other, and the combined number surprises owners who budgeted for only one.

The 800 dollar annual tax is the floor. It is owed whether the business made money, broke even, or lost money. A brand-new LLC, an LLC winding down, an LLC that sat dormant all year, all of them owe the 800 dollars as long as the entity existed and was registered or doing business in California. This is a minimum tax in the truest sense. There is no income test to trigger it and no way to prorate it down for a low-revenue year. The annual tax is due by the 15th day of the fourth month of the tax year, which for a calendar-year LLC is April 15 of the same year it applies to, paid in advance rather than in arrears. That forward-paying schedule trips up first-year owners who expect to settle up after the year ends, the way ordinary income tax works.

The gross-receipts fee sits on top, and it climbs in steps tied to total California revenue. The tiers work like this. An LLC with California-source gross receipts below 250,000 dollars owes no fee, just the 800 dollar annual tax. From 250,000 to just under 500,000 dollars, the fee is 900 dollars. From 500,000 to just under 1,000,000 dollars, the fee is 2,500 dollars. From 1,000,000 to just under 5,000,000 dollars, the fee is 6,000 dollars. At 5,000,000 dollars and above, the fee is 11,790 dollars. These are flat amounts per tier, not percentages, so the fee jumps in chunks as revenue crosses each line. An LLC that grosses 510,000 dollars pays the same 2,500 dollar fee as one that grosses 999,000 dollars, then the fee leaps to 6,000 dollars the moment revenue hits 1,000,000. The word gross matters here. The fee is computed on total receipts before expenses, so a high-revenue, low-margin business can owe a fee that feels punishing relative to its actual profit.

Stacking the two produces the real bill. An LLC grossing 600,000 dollars in California owes the 800 dollar annual tax plus the 2,500 dollar fee, for 3,300 dollars before a single dollar of income tax flows to the partners. An LLC grossing 1,200,000 dollars owes 800 plus 6,000, so 6,800 dollars. At the top tier the combined floor is 800 plus 11,790, which is 12,590 dollars owed at the entity level regardless of how the year shook out on the bottom line. None of this reduces what the partners owe on their personal returns for their share of the income. The annual tax and the fee are an entity-level cost layered on top of the partner-level income tax, not a credit against it. That layering is the part owners miss when they compare California to a no-tax state.

Timing the fee correctly avoids a penalty most people never see coming. The LLC must estimate its gross-receipts fee and pay it by the 15th day of the sixth month of the tax year, June 15 for a calendar-year LLC, using the estimated fee voucher. Underestimate the fee and the state charges a 10 percent penalty on the shortfall. This is a separate deadline from both the annual tax in April and the return itself, and the automatic filing extension does not move it. An LLC that waits until it files the return in September to deal with the fee has already missed the payment date by three months. We track all three dates as a set so nothing slips.

The general partnership and limited partnership side is simpler. They owe the 800 dollar annual tax but not the gross-receipts fee, which is an LLC-only charge. That difference is one input into whether the LLC wrapper is worth it for a given California business. The fee can run thousands of dollars a year for a revenue-heavy operation, and for some clients that cost outweighs the liability protection an LLC provides over a limited partnership. We run that comparison, entity cost against entity benefit, as part of the structure work in our tax strategy consulting service, and we keep the gross-receipts figure accurate through the year so the June estimate is right through our bookkeeping work. The federal income that drives the partner-level tax still flows through Form 1065 and the Schedule K-1 each partner receives, then onto each partner’s Schedule E, and the Form 1065 instructions govern how that income is reported before California adds its annual tax and fee on top.

The California Pass-Through Entity Elective Tax, usually shortened to PTET, exists for one reason. To get California business owners a federal deduction for state income taxes that the federal SALT cap would otherwise deny them. Federal law caps an individual’s itemized deduction for state and local taxes, and for 2026 that cap is 40,400 dollars, or 20,200 dollars for someone married filing separately. That number is not flat across the income range. It phases down by 30 cents for every dollar of modified adjusted gross income above 505,000 dollars, falling toward a floor of 10,000 dollars that is reached near 606,333 dollars of income. The higher cap and its phase-down run through 2029 under the 2025 reconciliation law, then on January 1, 2030 the cap reverts to a flat 10,000 dollars. For a high-earning partner in a California business, modified adjusted gross income usually sits well past 606,333 dollars, so that partner’s SALT deduction has already phased down to the 10,000 dollar floor, and state income tax alone can run far past that floor. Most of those state taxes become nondeductible on the federal return. The PTET is California’s workaround. The partnership or LLC pays the state tax at the entity level, where the SALT cap does not apply at all, and the partners get a credit on their California returns for what the entity paid. The federal deduction moves from the capped individual return to the uncapped business return, and the partners recover their state tax dollars as a credit at home.

Here is the mechanism in plain terms. A qualifying pass-through entity, which includes partnerships, LLCs taxed as partnerships, and S corporations, elects to pay an entity-level tax of 9.3 percent on each consenting owner’s share of California-source income. That 9.3 percent payment is a deductible business expense on the federal Form 1065, so it reduces the ordinary business income that flows out to every partner on their Schedule K-1. Because the deduction happens before the income reaches the partners, it sidesteps the individual cap entirely. The partners then claim a credit on their California personal returns equal to the PTET paid on their behalf, so they are not taxed twice on the same income. The net effect is a federal deduction the partners could not otherwise reach, often worth thousands of dollars per partner depending on the income and the federal bracket.

An example shows the payoff. Suppose a partner has 400,000 dollars of California-source income from the business and total income high enough that the SALT cap has phased down to its floor. Without the PTET, that partner pays California tax personally and can deduct only the small capped amount federally, which for a high earner has phased down toward the 10,000 dollar floor, leaving the rest nondeductible. With the election, the entity pays 9.3 percent of the 400,000, which is 37,200 dollars, as a deductible expense on the partnership return. That 37,200 dollar deduction reduces the partner’s federal taxable income, and at a 37 percent federal bracket it saves roughly 13,700 dollars in federal tax. The partner then takes a 37,200 dollar credit against California tax, so the state tax is not paid twice. The federal saving is money that would have evaporated against the SALT cap. This is why the election has become standard for profitable California pass-throughs since the IRS blessed the approach.

The election comes with rules that punish a missed deadline harshly. The PTET is elected annually, and the entity must make a prepayment to lock it in. For the election to be valid, the entity must pay the greater of 1,000 dollars or 50 percent of the prior year PTET by June 15 of the tax year. Miss that June 15 prepayment and the entity cannot make the election for that year at all, full stop. There is no late-election relief for blowing the prepayment. The remaining balance is then due by the original due date of the entity return the following year. We have seen owners lose a five-figure federal benefit because nobody flagged the June prepayment, so it is one of the dates we guard most carefully. The election is also irrevocable once made for the year, so it has to be modeled before it is made, not after.

The election is not automatically right for everyone, and that is the part the marketing around it tends to skip. Only owners who consent are included, and a partner who would not benefit, perhaps because they are a nonresident in a state that does not credit California PTET, or an entity-type owner that cannot use the credit, can be left out. The credit is nonrefundable against California tax, so a partner needs enough California liability to absorb it. There are also cash-flow consequences, because the entity fronts the tax in the election year and the partners recover it as a credit when they file. For a partner whose share of income is volatile year to year, the timing can pinch. The decision turns on each partner’s federal bracket, residency, and California liability, which means it is a partner-by-partner analysis, not a blanket yes.

Because the PTET interacts with the federal deduction reported on Form 1065, the partner-level income on each Schedule K-1, and the eventual flow onto each partner’s Schedule E, getting it right means coordinating the entity return and every partner return together. We model the election for each consenting owner before the June prepayment, weigh it against residency and bracket, and handle the prepayment timing through our tax strategy consulting service. We then prepare the affected partner returns so the credit lands correctly through our individual tax return preparation service, because a PTET deduction at the entity level only pays off if the credit flows cleanly onto each personal return.

When a partnership or LLC has partners who do not live in California but earn California-source income through the business, the state does not wait for those nonresidents to file and pay on their own. It makes the partnership withhold tax at the source and remit it, the same way an employer withholds from a paycheck. The vehicle for this is Form 592, the Resident and Nonresident Withholding Statement, along with its companion Form 592-B that reports to each partner what was withheld. This is one of the most overlooked obligations for partnerships with out-of-state owners, and the penalties for skipping it fall on the partnership, not the partner. A New York resident with a stake in a California LLC, a Texas investor in a California real estate partnership, anyone earning California-source income through a pass-through without a California address, can trigger the withholding requirement.

The rule works like this. A partnership or LLC that allocates California-source income to a nonresident partner generally must withhold 7 percent of distributions of that California-source income made to the partner. The withholding is computed on the income that has its source in California, which for a business means income from operations conducted in the state, from California real estate, or from sales into California depending on how the income is sourced. The 7 percent is withheld when distributions are made and is remitted to the Franchise Tax Board on a quarterly schedule. The partnership reports the total withheld on Form 592 and issues each affected partner a Form 592-B showing that partner’s share, which the partner then claims as a payment already made when filing the California nonresident return. The federal numbers behind all of this still originate on Form 1065 and flow to each partner on a Schedule K-1, and California sourcing is applied on top of those federal allocations.

There is a meaningful exception that keeps small allocations out of the system. Withholding is generally not required when the total California-source income allocable to the nonresident partner for the year is 1,500 dollars or less. Below that floor, the partnership does not have to withhold, which spares everyone the paperwork on trivial amounts. Above it, the 7 percent applies to the California-source distributions. A nonresident partner can also request a waiver or a reduced withholding rate from the Franchise Tax Board in certain circumstances, for instance when the standard 7 percent would substantially overshoot the partner’s actual California tax liability. Those waivers are granted on request and on the facts, not automatically, so a partner who expects one should apply rather than assume.

The interaction with the PTET election is where this gets layered, and it is a place returns go wrong. If the partnership made the Pass-Through Entity Elective Tax election and a nonresident partner consented, the entity is already paying 9.3 percent of that partner’s California income at the entity level. Withholding 7 percent on top of that would double up on the same income, so the rules coordinate the two so the partner is not over-withheld. Getting that coordination right requires the entity to track which partners consented to the PTET and adjust the withholding accordingly. We see partnerships either withhold on PTET income they should not, tying up partner cash, or fail to withhold on non-consenting nonresidents and expose the partnership to penalties. Both errors come from treating the two regimes as if they do not touch, when in fact they have to be reconciled partner by partner.

Sourcing the income correctly is the foundation under all of it, and it is genuinely hard for a business that operates in more than one state. California-source income for a multistate partnership is determined by apportionment, generally using a single-sales-factor formula that looks at the share of total sales delivered into California. The partnership computes a California apportionment percentage, applies it to total business income, and that result is the California-source figure that drives both the nonresident withholding and the partners’ California returns. Service businesses source receipts based on where the benefit of the service is received, which for clients located across the country requires real analysis. Get the apportionment wrong and the withholding, the partner returns, and the entity fee are all built on a bad number. This is not a place to estimate.

Because the withholding obligation, the apportionment, and the PTET coordination all rest on accurate books and correct sourcing, we handle them as one connected workflow. We keep the records that support the apportionment factor accurate through our bookkeeping work, then build the withholding and PTET coordination into the entity plan through our tax strategy consulting service so nonresident partners are neither over-withheld nor exposed. The California-source income that drives the 7 percent ultimately reaches each nonresident partner’s return on a Schedule E, carried from the Schedule K-1 the partnership issues, so the entity-level withholding and the partner-level filing have to agree.

A California partnership does not pay income tax on its profit, so the tax bill lands on the partners, and where it lands depends entirely on whether the partner is a California resident or a nonresident. A resident partner files Form 540, the California Resident Income Tax Return, and reports their share of the partnership income there. A nonresident partner files Form 540NR, the California Nonresident or Part-Year Resident Income Tax Return, and reports only the California-source portion of that income. The difference is not cosmetic. A resident is taxed by California on their entire worldwide income, including the full partnership share no matter where the business operates. A nonresident is taxed by California only on the slice of partnership income that has its source inside the state. Understanding which return applies, and what income it captures, is the difference between paying California correctly and either overpaying or inviting a notice.

The flow starts federally and is the same for both types of partner at the top. The partnership reports its results on Form 1065 and issues each partner a Schedule K-1 showing that partner’s distributive share of ordinary business income, separately stated items, and other figures. On the federal personal return, the partner carries the ordinary business income from K-1 Box 1 onto Schedule E of the Form 1040, which is the schedule built for income from partnerships, S corporations, rentals, and trusts. The Schedule E instructions map each K-1 box to where it belongs. That federal Schedule E figure is the starting point that then flows into the California return, adjusted for the differences between federal and California law.

For a California resident filing Form 540, the partnership income is reported in full. A resident reports the entire K-1 share, whether the partnership operates only in California or spreads across many states, because California taxes residents on everything they earn everywhere. If that resident also earned income in another state through the partnership and paid tax to that state, California generally allows a credit for taxes paid to the other state, so the same dollars are not taxed twice at the state level. The resident still starts from the same Schedule E figure on the federal Form 1040, then makes California adjustments where state law diverges, for example on depreciation differences or items California treats unlike the federal treatment. The resident return is the more inclusive of the two because it reaches all of the income.

For a nonresident filing Form 540NR, only California-source income enters the California tax base, but the calculation has a feature that surprises people. California uses what is often called the tax-rate method. It first figures the tax as if all of the nonresident’s income, from every source, were taxable in California, which sets the rate. Then it applies that rate only to the California-source portion. The result is that the California-source income is taxed at the marginal rate the nonresident’s total income would command, not at the lower rate that the California slice alone would fall into. A nonresident with a large total income and a small California share still pays California tax on that share at a high effective rate. This catches out-of-state partners who assume a small California allocation means a small California rate. It does not work that way, and it is one of the most common misunderstandings we correct on nonresident returns.

Several California-specific items ride along with this flow and change the final number. If the partnership withheld 7 percent on a nonresident partner using Form 592, that withholding shows up on the partner’s Form 540NR as a payment already made, reducing or eliminating the balance due and sometimes producing a refund. If the partnership made the Pass-Through Entity Elective Tax election, the partner claims the PTET credit on their California return, resident or nonresident, for the 9.3 percent the entity paid on their behalf. A resident partner who is self-employed through a general partnership also owes federal self-employment tax on their share, computed on Schedule SE, since California partnership income that is subject to self-employment tax federally carries that obligation regardless of the partner’s state. And a partner whose income qualifies may claim the federal qualified business income deduction on Form 8995, which reduces federal taxable income though California does not conform to it, so the deduction helps the federal bill but not the California one.

Pulling the federal return, the California resident or nonresident return, the withholding credit, and the PTET credit into agreement is the work that makes partner taxation come out right. The same Schedule K-1 that starts the federal flow on Schedule E has to reconcile against what the partnership reported and withheld at the California level, or the partner pays the wrong amount. We prepare the resident Form 540 and nonresident Form 540NR returns alongside the federal Form 1040 through our individual tax return preparation service, and we coordinate the entity-level decisions that feed those returns, the PTET election and the withholding, through our tax strategy consulting service, so the K-1 that arrives in spring produces a return that matches what the partnership actually did.