The Roth IRA in California: What the State Taxes, Penalizes, and Runs for You

California does not tax qualified Roth IRA withdrawals. A Roth conversion is different: the state generally taxes the amount not covered by recoverable after-tax IRA contributions, called basis. There is no general age-based IRA conversion exclusion. Early withdrawals can also bring a separate 2.5% California tax, in addition to the federal additional tax. FTB Publication 1005 explains the state treatment; R&TC §17085 supplies the basis and additional-tax rules.

California at a glance

What a conversion actually adds to your California tax

Start with the taxable amount, not just the dollars moved. If all of the traditional IRA money is pre-tax, the whole conversion is generally taxable. If the IRA contains nondeductible contributions, part may be a recovery of basis. California basis can differ from federal basis because the states' deduction rules did not always match. Recoverable basis is allocated under the IRA rules; it is not a choice to convert only the after-tax dollars from one selected account. Publication 1005's IRA and Roth IRA worksheets address those differences. Moving into California does not create a new basis equal to the account's value on arrival.

California has no general pension or IRA income exclusion simply because you reach a particular age. That is not the same as taxing every retirement dollar: qualified Roth distributions and recovered basis are different, Social Security has separate treatment, and a limited military-retirement exclusion applies for 2025–2029. That military rule is not an IRA conversion exclusion. See Publication 1005 and the FTB military guidance.

The regular California income-tax schedule is progressive. A conversion can span several brackets; a top marginal rate is not the rate on every dollar. An additional 1% Behavioral Health Services Tax applies to taxable income above $1 million. That taxable-income test is different from the AGI test for estimated-tax safe harbors. California cities, counties and districts cannot add an income tax under R&TC §17041.5.

A clearly dated, hypothetical conversion example

Use a single, full-year California resident with $160,000 of California taxable income before the conversion, no after-tax IRA basis, and no conversion-driven changes to deductions, credits, other taxes or benefits. This illustration uses the 2025 Schedule X bracket of 9.3% above $72,724 through $371,479. It is not a 2026 final-return calculation. The 2026 estimated-tax instructions direct filers to the 2025 tax table for that estimate; the schedule year remains 2025.

All three stay within that bracket. For the $100,000 example, the schedule produces $11,318.64 before and $20,618.64 after the conversion: a $9,300 difference. Federal tax and benefit changes are not included. Source: FTB 2025 tax-rate schedules, Schedule X.

Withholding and estimated payments are separate from the final bill

A conversion can create a tax bill even when no cash arrives in your bank account. Withholding and estimated payments are ways to pay that bill, not additional tax rates. California's usual estimated-payment installments are 30%, 40%, 0% and 30% of the required annual payment. For uneven income, the annualized-income method may change the required installments; paying a late-year conversion's tax only at filing does not automatically avoid an underpayment charge.

For 2026, taxpayers with California AGI equal to or above $1 million ($500,000 if married/RDP filing separately) cannot base estimated payments on the prior year's tax. Mandatory electronic-payment rules generally begin after an estimate or extension payment exceeding $20,000 or an original return showing total tax liability over $80,000; the first triggering payment need not be electronic. See the 2026 Form 540-ES instructions for the full rules and exceptions.

The 2.5% state tax: which Roth dollars are you withdrawing?

A qualified Roth IRA distribution satisfies the federal five-tax-year requirement and a qualifying condition, usually reaching age 59½; disability, death and a qualifying first-home distribution have their own conditions. Simply reaching 59½ does not erase the qualified-distribution five-year test. IRS Publication 590-B explains those tests.

For a nonqualified distribution, Roth ordering rules generally use regular contributions first, then conversions and rollovers, then earnings. A return of regular contributions is not taxed again. Taxable earnings withdrawn before 59½ can face the federal 10% and California 2.5% additional taxes unless an exception applies. The state taxable amount can differ where California basis differs. See FTB 3805P instructions.

Hypothetical penalty example: assume $20,000 is entirely taxable Roth earnings under both federal and California rules, the owner is under 59½, and no exception applies. The federal additional tax is $2,000 and California's is $500, for $2,500 combined. Ordinary income tax is additional. This is not a 12.5% charge on every Roth withdrawal.

A properly completed traditional-to-Roth conversion does not itself incur the early-distribution tax. However, taxable money withheld or otherwise not converted may be an early distribution. Later withdrawals attributable to the taxable part of a conversion can trigger recapture within that conversion's separate five-tax-year period if the owner is under 59½ and no exception applies. California can apply its 2.5% additional tax to the corresponding recapture amount, with state-basis adjustments where applicable. This is not another income tax on already-taxed principal. Publication 590-B and California's same-year §72(t) rules govern; do not assume an exception available to an employer plan also applies to an IRA.

SIMPLE IRA distributions have a different early-participation rule: within the first two years, the additional rates can be 25% federal and 6% California. This is not the ordinary Roth IRA rate. Source: FTB early-distribution guidance.

After a move: source of income and tax rate are different questions

4 U.S.C. §114 limits a former state's taxation of a nonresident's covered retirement income. California implements that protection in R&TC §17952.5, and FTB Publication 1005 expressly includes Roth conversions. After California residency genuinely ends, the conversion is not California-source retirement income merely because the account was earned or funded while you lived there.

But “not California-source” does not mean “no possible California tax effect.” For a nonresident or part-year resident, Form 540NR uses income from the whole year to determine the rate applied to income California is allowed to tax. A post-move conversion can raise that rate on resident-period income or continuing California-source income. Deductions and credits can also be affected. The Publication 1100 tax-computation formula makes this distinction explicit.

A new mailing address alone does not settle residency. The FTB considers whether presence or absence is temporary or transitory, along with domicile and the facts of the move. FTB residency guidance is the starting point. There is no general rule letting California tax your IRA for ten years after a genuine departure; equally, the retirement-income protection does not eliminate California tax on unrelated California-source income.

Washington distinction: its capital-gains statute expressly exempts assets held in qualifying retirement accounts, including traditional and Roth IRAs. That is a state-law exemption, not a consequence of §114 and not a claim that every capital gain in Washington has one flat rate. See RCW 82.87.050(3). Read the Washington guide for its rules, conditions and dated examples.

A conversion can change benefits as well as income tax

Each program asks a different question: taxable income, modified adjusted gross income (MAGI), household income from a prior year, or countable assets. A conversion's effect on one does not establish its effect on another.

• Covered California. Taxable conversion income can raise household MAGI. For 2026, the federal premium tax credit generally again has an upper income limit of 400% of the federal poverty level. Exceeding it can eliminate the federal credit, and repayment limits for excess advance credits no longer apply after 2025. California's separate 2026 state premium subsidy reaches eligible enrollees up to 165% of poverty; it is not a replacement for federal help above the federal ceiling. Sources: IRS premium-tax-credit questions and answers and Covered California's February 26, 2026 update.
• Property Tax Postponement. For the 2026–27 application cycle, the income limit is $57,002, measured using 2025 household income. Applicants must also meet age (62 or older), blindness or disability criteria and other requirements, including at least 40% home equity. The program's statutory income definition is broader than a simple taxable-income test. A 2026 conversion does not retroactively change the 2025 income on this application. This postpones payment through a loan secured by a lien; it does not forgive the tax. Sources: State Controller program page, 2026–27 application and R&TC §20503, income definition and reference year.
• Medi-Cal. The asset test restored January 1, 2026 applies to specified non-MAGI pathways, such as certain aged, disabled and long-term-care coverage. It is not an asset test for every Medi-Cal enrollee. DHCS currently lists retirement funds as not counted when the person is receiving regular payments. Income eligibility is a separate test, so an excluded account balance does not establish that a payment is excluded income. Ask which eligibility pathway and retirement-payment rules apply. Source: DHCS asset-limit FAQ.

The second row is future law, not the limit in force on this page's October 2026 review date. For beneficiaries already enrolled when the new provision becomes operative, the new limits apply beginning with their first annual redetermination on or after that date, not automatically to everyone on July 1. Implementation also requires the programmed systems, necessary federal approvals and available federal funding specified by the statute. Before the change, the extra-person amount is $65,000; afterward, it is $1,550 for each person beyond two, subject to the program's household-size rules. Married applicants may have additional protections. These are countable-asset limits, not limits on the gross value of every asset a household owns. Sources: DHCS exclusions and published dates and SB 164, sections 68–69, including the transition and implementation conditions.

CalSavers is voluntary for workers, even when the employer must offer it

CalSavers is California's payroll-deduction IRA program. Covered employers without a qualifying retirement plan must facilitate it. The mandate generally reaches employers that averaged at least one California-based employee in the preceding year, with at least one employee age 18 or older; exceptions include employers with only owners as employees. It does not mean every business must open an account regardless of its circumstances. See the official employer and saver FAQ.

Eligible employees get a 30-day notice period to opt out before automatic enrollment. The default is 5% of gross pay, with one-percentage-point annual increases toward 8%; timing and customization rules apply. Workers can opt out later or change their settings. The program defaults to a Roth IRA and offers a process to recharacterize contributions to a traditional IRA. That is not the same as reversing a Roth conversion.

CalSavers does not give you a second IRA contribution allowance or an exemption from Roth income limits. Its FAQ tells savers they are responsible for eligibility and contributions across accounts. Excess contributions can trigger the federal 6% annual excise tax, but a timely corrective distribution can prevent that tax; the deadline and earnings calculation matter. The program FAQ and IRS Publication 590-A explain those responsibilities.

Employer penalties are also conditional: $250 per eligible employee after noncompliance continues at least 90 days following notice, plus another $500 after at least 180 days. These are employer enforcement rules, not a worker penalty for opting out. CalSavers FAQ.

Public employees may have a workplace Roth option too

A workplace Roth account is not the same account as a Roth IRA. California state employees eligible for Savings Plus can make Roth contributions through its 401(k) and 457(b) plans. CalSTRS Pension2 offers traditional and Roth 403(b) and 457(b) plans. Availability for a particular employee still depends on the employer and plan.

For a city, county, university or other public employer, use the current plan document to check Roth contributions, conversion availability and distribution rules. A feature offered by one California public plan is not automatically offered by another.

Creditor protection, spouses and inheritance need separate checks

Your own IRA: the kind of debt matters

Code of Civil Procedure §704.115 explicitly includes IRAs under federal §408 and Roth IRAs under §408A. Its general IRA exemption is limited to what is necessary for retirement support of the debtor, spouse and dependents, considering other resources. But that is only part of the statute.

For a judgment on qualifying personal debt, subsection (e)(2) supplies a minimum exemption tied to the adjusted federal IRA amount, aggregated across the covered plans and accounts: currently $1,711,975. “Personal debt” means a natural person's debt arising primarily from personal, family or household transactions; the definition excludes specified tort, fraud and employee-claim debts. Fraudulent asset-shifting can reduce protection, and support judgments have separate rules. Sources: §704.115(c) and (e), §683.110(d) and the Judicial Conference's April 1, 2025 adjustment.

Periodic payments require a separate check. Under §704.115(f), the amount of a periodic payment that can be applied to a money judgment is tied to what could be withheld from like earnings under California's Wage Garnishment Law. The account-balance and personal-debt protections above do not, by themselves, establish protection for every periodic payment.

Bankruptcy and inherited accounts are not the same question

Federal bankruptcy law provides a separate exemption for qualifying retirement funds. Its adjusted $1,711,975 aggregate cap for covered traditional and Roth IRA assets applies to cases filed from April 1, 2025, until the next scheduled adjustment in 2028; it is not a per-account limit or a universal ceiling on retirement savings. 11 U.S.C. §522(n) excludes amounts attributable to specified employer-plan rollovers and their earnings from that cap, and permits a court increase in the interests of justice. An ordinary IRA-to-IRA rollover or Roth conversion is not, just by that label, one of the listed employer-plan exceptions. Account history and tracing matter.

In Clark v. Rameker (2014), the Supreme Court held that an IRA inherited from a parent was not “retirement funds” under §522(b)(3)(C). That decision is not a ruling that every inherited IRA is reachable under every state's law. A spouse who treats an inherited account as their own raises different issues. This guide does not give a blanket protected-or-exposed answer for a California inherited Roth; the beneficiary, exemption claimed and proceeding need individual review.

A beneficiary form does not settle community-property ownership

Property acquired during marriage while domiciled in California is generally community property unless an exception applies. Contributions from community earnings can therefore create a spouse's interest in an IRA titled in the other spouse's name. Separate-property contributions and tracing can change the result. Family Code §760 supplies the starting rule.

For a nonprobate transfer without the required spouse's written consent, Probate Code §5021 allows a court to set aside the transfer of the nonconsenting spouse's interest, subject to statutory and equitable limits. It is more accurate to say that the beneficiary form may not control the spouse's interest than to promise an automatic half of every IRA.

No current California estate tax does not mean no estate questions

California requires no estate-tax return for deaths on or after January 1, 2005; it also has no current inheritance or gift tax. The State Controller distinguishes these modern rules from older liabilities. Federal estate tax is separate: Roth IRA assets are generally part of the owner's gross estate even when distributions qualify for income-tax-free treatment. See the Form 706 instructions, Schedule I.

The federal basic estate-and-gift exclusion is $15 million for 2026. That is not an exclusion for each IRA, and prior taxable gifts and other estate rules matter. Source: IRS Revenue Procedure 2025-32, section 2.14. A nonresident beneficiary's covered IRA distributions are not California-source retirement income, but that does not excuse unrelated California-source income or turn every inherited Roth distribution into a qualified distribution.

Three shortcuts that give the wrong answer

• “California taxes every converted dollar.” Recoverable after-tax basis can reduce the taxable amount; California and federal basis can differ.
• “After I move, the conversion cannot affect my California return.” The income-source protection and the all-year rate calculation answer different questions.
• “Roth means invisible to benefit programs.” Income and asset tests differ by program. Tax-free treatment alone does not establish eligibility.

The 529-to-Roth transfer that is not California-tax-free

Federal law allows certain direct 529-to-Roth transfers when its requirements are met. As of October 2, 2026, California still expressly excludes that provision under R&TC §17140.3(f). The earnings portion is generally included in California taxable income and faces a 2.5% additional tax unless an applicable exception removes the additional tax. This is not tax on the entire transferred balance. The FTB 3805P instructions describe the nonconformity and exceptions.

Hypothetical: a federally eligible $5,000 transfer contains $1,000 of earnings and $4,000 of contributions, as established by the plan's allocation. With no California additional-tax exception, the state includes $1,000 in income and the additional tax is $1,000 × 2.5% = $25. Regular California income tax on that $1,000 is separate. This example assumes federal eligibility; the dollar amounts do not establish it.

Sources and update history

The current text distinguishes statute, agency guidance, source year and hypothetical arithmetic. Older form editions remain labeled with their actual year; a new page date does not turn a 2025 tax schedule into a 2026 schedule. Court rulings are described within the issue they decided. This is editorial research, not CPA or legal review.

Corrections and updates

October 2, 2026 — significant factual correction: clarified conversion basis, nonresident source protection versus the California tax-rate calculation, early-distribution tax bases and creditor-protection limits, including periodic payments. Corrected the state health-coverage subsidy from 150% to 165% of poverty; the correct limit was announced before this article was first published. Removed the outdated Washington flat-rate caption and unsupported categorical claims. Restored the corrected source reference and replaced the earlier workbook with a clearly scoped California example, not a cross-state comparison. Permanent correction record.

October 2, 2026 — update: added the 2026–27 Property Tax Postponement income limit and its 2025 income year, and aligned the early-distribution discussion with current September 2026 conformity law. These developments are separate from the corrections above.

October 2, 2026 — factual correction: the earlier July 2027 Medi-Cal timeline omitted consequential transition conditions that were already in law before this article was published. For already-enrolled beneficiaries, the future asset limits apply at their first annual redetermination on or after the operative date, subject to the stated systems, federal-approval and funding conditions.

Original publication record: the following July entry is preserved as history, not a current verification claim.

• 2026-07-24 — page published; all 79 facts verified this date. Watch-list: 2026 FTB bracket indexing (published late summer); congressional action on the ACA enhanced credits; any CA conformity bill on SECURE 2.0 §126 (529→Roth); the July 1, 2027 Medi-Cal asset-limit drop; LA County’s 2026 plan materials (a new county 401(k) was reportedly added).

Explore the source reference: Download the CSV or open the Excel workbook. Both contain 101 dated source references. The workbook also includes an editable, single-resident example using the explicitly labeled 2025 California schedule. It starts with an already determined California-taxable conversion amount, not a gross transfer, and does not prepare a 2026 return or compare states. The earlier July download links now serve these corrected files.

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California Roth questions, answered plainly

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