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

California does not tax qualified Roth IRA withdrawals — the state conforms fully to the federal treatment, and no California city can add a local income tax. Roth conversions are California income in the year you convert, in full: unlike New York, there is no senior exclusion, at any age. And California is one of the few states with its own early-withdrawal penalty — 2.5% stacked on the federal 10%. This guide covers the real cost of converting, the penalty stack, the moving rule, creditor and community-property protection, and the Roth IRA the state may have already opened for you.

What a conversion actually costs in California

Conversion income lands on top of your other income and runs through California’s brackets — 1% to 12.3% across nine steps, the steepest state schedule in the country, plus a 1% surtax on taxable income over $1 million (13.3% top). And that’s the whole story, because California gives conversions nothing back:

• No exclusion, no window, no age break. New York excludes $20,000 a year of conversion income at 59½+; Pennsylvania and Illinois don’t tax retirement income at all. California taxes every converted dollar at every age — the only retirement income it exempts is Social Security (and, for 2025–2029, a capped military-pay exclusion).
• But also no local layer. State law prohibits every city and county from taxing personal income (R&TC §17041.5) — a San Francisco or Los Angeles conversion carries zero local tax, the mirror image of New York City.
• The brackets are wide and flat where it matters. A single filer’s 9.3% bracket runs from $72,724 all the way to $371,479 (2025 schedules — the latest published; California indexes late), so upper-middle-income conversions price at a predictable flat 9.3%.

Two mechanics decide whether the bill arrives with a penalty attached. California withholding on IRA distributions is default-on — typically 10% of the federal withholding amount — unless you opt out (Form DE 4P), the opposite of most states. And estimated tax runs on California’s lopsided 30/40/0/30 installment calendar; a Q4 conversion usually needs the FTB 5805 annualization schedule to avoid a penalty computed as if the income arrived all year. Above $1 million of AGI, the prior-year safe harbor is gone entirely.

Authority: CUIC §13028; EDD Form DE 4P Rev. 46 (1-26) · FTB Pub 1005 (2025) (no exclusion provision exists); R&TC §17041 · FTB Pub 1005 (2025), Roth IRA Conversions + Roth IRA Worksheet; R&TC §17501(a) · R&TC §17041.5 · R&TC §17041; 2025 California Tax Rate Schedules (FTB) · R&TC §17043; 2026 Form 540-ES instructions, Section D (Behavioral Health Services Tax worksheet) · R&TC §19136 et seq.; 2026 Form 540-ES instructions, General Information + Sections B–D · verified 2026-07-24

The 12.5% problem: California’s own early-withdrawal penalty

Most states leave early-withdrawal penalties to the IRS. California charges its own: 2.5% of the taxable amount (R&TC §17085(c), filed on FTB 3805P), on top of the federal 10% — a combined 12.5% before any income tax. It matters for Roths in three specific places:

• Early earnings withdrawals. Pull earnings out of a Roth before 59½ with no exception, and the earnings owe federal tax + 10% + California tax + 2.5%. (Your own contributions still come out free everywhere — the ordering rules are federal and California conforms.)
• The conversion-recapture twin. The state penalty piggybacks the federal §72(t) mechanics wholesale — including the rule that converted dollars withdrawn within five years, before 59½, owe the penalty as if they were earnings. In California that recapture costs 12.5%, not 10%.
• The exceptions travel too. Every federal exception (59½, SEPP, disability, first home, and the rest) applies for California automatically — qualify federally and the 2.5% disappears with the 10%.

Authority: FTB Pub. 1005 (2024); R&TC conformity to IRC pension provisions · R&TC §17085(c) (’using a rate of 2 1/2 percent, in lieu of the rate provided in those sections’, per leginfo.legislature.ca.gov); FTB Pub 1005 (2025); FTB 3805P · verified 2026-07-24

Leaving California (or arriving): who taxes the conversion?

Federal law settles the endgame: 4 U.S.C. §114 bars any state from taxing the retirement income of a nonresident. California learned this the hard way — it was the state whose pension source-taxing prompted Congress to pass the ban in 1996 — and it now codifies the rule in R&TC §17952.5, with FTB Pub 1005 naming “Roth IRA conversions” and “Roth IRA distributions” on the do-not-tax list. Work thirty years in Los Angeles, retire to Nevada, convert the whole IRA: California’s share is zero.

The fight is never about the rule — it’s about whether you actually stopped being a Californian. Residency turns on a “closest connections” test (home, spouse and family, working time, the things you’d grab in a fire), more than nine months of presence in a year creates a statutory presumption of residency, and the FTB runs a dedicated residency-audit program with a 117-page manual. Moving in has its own rule worth knowing: income received after you become a resident is fully California-taxable regardless of where it accrued — so someone relocating to California should convert before the move-in date, the exact mirror of the leaver’s timing.

Authority: 4 U.S.C. §114 (P.L. 104-95); FTB Pub. 1005 (2025), p. 4 · 4 U.S.C. §114(a), (b)(1) (P.L. 104-95, 109 Stat. 979) · Cal. Rev. & Tax. Code §17014(a); FTB Pub. 1031 (2025) §§E, G, L; Appeal of Stephen Bragg, 2003-SBE-002 · Cal. Rev. & Tax. Code §17016; 18 CCR §17016 · Cal. Rev. & Tax. Code §17952.5 · FTB Pub. 1005 (2025), Roth IRA Worksheet; Cal. Rev. & Tax. Code §§17952.5, 17041(i) · FTB Pub. 1100 (Rev. 10/2024) §D, Example 11; Cal. Rev. & Tax. Code §17041 · FTB Residency and Sourcing Technical Manual (Rev. 01/2026) §§4200, 4310 · verified 2026-07-24

The cliffs a conversion can push you over

California attaches more income-tested programs to your tax return than almost any state — and conversion income counts toward most of them:

• Covered California, 2026 edition. The enhanced federal premium credits expired December 31, 2025, and Congress hasn’t extended them — which resurrects the hard 400%-of-poverty cliff: one conversion dollar past the line and the entire year’s premium subsidy is repaid. California’s own $190M state subsidy only reaches households up to 150% FPL — it won’t catch you. For anyone on exchange coverage, this is the single most expensive line on this page in 2026.
• Property Tax Postponement. Income cap $55,181 (2025–26), and the R&TC §20503 income definition counts IRA withdrawals and conversions. The ordinary homeowners’ exemption, by contrast, has no income test at all — a conversion can’t touch it.
• The $1M surtax doubles as a cliff: crossing it adds 1% to the excess and revokes the estimated-tax safe harbor for the year.
• Medi-Cal counts assets again as of 2026 — the whiplash chart below — and distributions count as income in the month received.

Authority: Cal. Const. art. XIII §3(k); R&TC §218 · California Budget Act of 2025 (state subsidy appropriation); Covered California news releases Aug 14 and Oct 30, 2025 · IRC §36B(c)(1)(A); ARPA §9661 / IRA §12001 (expired 12/31/2025); CRS Report R48290 (updated Dec 10, 2025) · R&TC §20503 (income = §17072 AGI + enumerated nontaxable items); SCO FY 2025-26 PTP Application · R&TC §20581 et seq.; State Controller’s Office FY 2025-26 PTP Application and Instructions · verified 2026-07-24

The Roth IRA California may have already opened for you

CalSavers is the country’s original state auto-IRA — and as of 2026 it is fully phased in: every California employer with at least one eligible employee and no retirement plan must register (government employers are categorically outside the mandate). Enrolled workers are defaulted at 5% of pay into a Roth IRA, auto-escalating one point a year to 8%.

• You can leave anytime. A 30-day opt-out window runs before contributions start; opting out (and back in) stays available forever after.
• Roth by default, traditional by election. Unlike New York’s program, CalSavers lets a saver recharacterize to a traditional IRA — the escape hatch for high earners the Roth MAGI limits would otherwise trap.
• Nobody checks your income. The program applies the federal Roth limits but doesn’t screen for them; an auto-enrolled high earner accrues the federal 6%-per-year excess-contribution excise until fixed. Employers that ignore the mandate face $250-per-employee penalties, rising to $750.

Authority: Cal. Gov. Code §100008; CalSavers program terms (CalSavers Retirement Savings Board) · Cal. Gov. Code §100032 (statutory 3% fallback; escalation ≤8%, ≤1%/yr); CalSavers Board regulations (5% program default) · Cal. Gov. Code §100032; CalSavers program FAQ · Cal. Gov. Code §100033(b); R&TC §19285 et seq. (FTB collection); SB 1126 deadline Dec 31, 2025 · IRC §408A(c)(3) (MAGI limits, 2026 per IRS Notice 2025-67); IRC §4973 (6% excise); CalSavers program FAQ · SB 1234 (2016); Cal. Gov. Code §100000 et seq. (Title 21); SB 1126 (Stats. 2022, ch. 192) · verified 2026-07-24

The public-employee corner

California’s public workforce — the nation’s largest — has Roth access nearly everywhere, with one notable gap:

• State employees (Savings Plus): both a 457(b) and a 401(k), each with a Roth option — a dual structure New York’s state plan doesn’t offer.
• Local agencies and schools: the CalPERS 457 Plan carries Roth, if the employer adopts it; teachers get CalSTRS Pension2’s full menu (403(b), Roth 403(b), 457(b), Roth 457(b)), district willing.
• University of California: Roth options in the UC 403(b) and 457(b) since 2023.
• City of Los Angeles: Roth 457 plus unlimited in-plan Roth conversions.
• The gap: LA County’s Horizons 457(b) — the largest county plan — still showed no Roth contribution option in its latest published materials.
• The tax simplification: because California exempts no retirement income, there’s no New York–style puzzle about which plan’s withdrawals get which exclusion — pensions, 457(b)s, 403(b)s, and IRAs are all simply taxable, and qualified Roth money is simply not.

Authority: CalHR Savings Plus Program (savingsplusnow.com; calhr.ca.gov) · CalPERS 457 Deferred Compensation Plan (calpers.ca.gov) · CalSTRS Pension2 (calstrs.com/pension2; Pension2.com) · City of Los Angeles Deferred Compensation Plan (457.lacity.gov) · County of Los Angeles Deferred Compensation and Thrift Plan (Horizons); LA County DHR 2025 benefits flyer · UC Retirement Savings Program (UCnet, University of California Office of the President) · verified 2026-07-24

Protection: lawsuits, bankruptcy, marriage, nursing homes, and death

This is California’s weakest subject. Outside bankruptcy, an IRA or Roth IRA is exempt from judgment creditors only “to the extent necessary to provide for the support” of you and your dependents in retirement (CCP §704.115(e)) — a means test weighing your age, earning capacity, and other assets. A young, high-earning defendant can lose most of a Roth. Employer plans, by contrast, are fully exempt — which creates the one great fix: money rolled over from an employer plan keeps the plan’s full exemption if you can trace it (McMullen v. Haycock, 2007). Keep rollover money in its own IRA, never commingled with annual contributions. Since 2025, a floor also exists: consumer-debt judgments can’t reach the first $1,711,975 across your retirement accounts (AB 2837), and in bankruptcy the federal exemption protects your own Roth up to the same figure regardless of the state means test.

An inherited Roth is unsettled. Clark v. Rameker closed the federal bankruptcy route in 2014, and no controlling California decision has answered whether §704.115 shields an inherited IRA outside bankruptcy. Until one does, prudent planning treats an inherited Roth as exposed in California.

Marriage changes the ownership math. A Roth funded with community earnings is community property regardless of whose name is on the account (Family Code §760) — at divorce it’s divisible (IRAs move between spouses tax-free under IRC §408(d)(6), no QDRO needed), and at death a spouse’s one-half community interest can trump the beneficiary form if they never consented in writing to someone else being named. That’s a California-specific estate-planning trap with no federal equivalent for IRAs.

Nursing homes and Medi-Cal: the asset test is back. Eliminated in 2024 (a national first), reinstated January 1, 2026 at $130,000 per person — and scheduled to drop to $21,000 on July 1, 2027. An IRA escapes the asset count only in payout status, and California’s guidance is explicit about the Roth wrinkle: because Roths have no RMDs, a Roth owner of any age must be taking regular periodic distributions for the account to be exempt. A community spouse’s retirement accounts stay fully exempt, and qualified Roth withdrawals don’t count as MAGI income for the expansion population.

At death, the state takes nothing: California has no estate tax (zero since 2005), no inheritance tax, and no gift tax — only the federal estate tax (2026 exclusion: $15 million) applies, with your Roth includible in the gross estate like any other asset. A qualified inherited-Roth distribution is California-income-tax-free, and a nonresident beneficiary of a California decedent owes California nothing at all.

Authority: 4 U.S.C. §114 (P.L. 104-95); R&TC §17952.5; FTB Pub. 1005 (2024) · AB 116 (Stats. 2025) amending WIC §14005.62; DHCS ACWDL 25-14 (June 30, 2025) · Cal. Code Civ. Proc. §704.115(e)(1) (as amended by AB 2837, Stats. 2024, ch. 514, eff. 1/1/2025) · Cal. Code Civ. Proc. §704.115(e)(2) (AB 2837, Stats. 2024, ch. 514); Cal. Code Civ. Proc. §683.110(d); 11 U.S.C. §522(n) · Cal. Fam. Code §760; Cal. Fam. Code §2610(a); IRC §408(d)(6) · Cal. Prob. Code §5021 (added Stats. 1992, ch. 51); Cal. Fam. Code §760 · Cal. Rev. & Tax. Code §13301 (Prop 6, 1982); Cal. State Controller’s Office (pickup tax eliminated with federal credit, EGTRRA 2001) · Clark v. Rameker, 573 U.S. 122 (2014); Cal. Code Civ. Proc. §§704.115(b), 703.140(b)(10)(E) (inherited accounts unaddressed); In re Hamlin, 465 B.R. 863 (B.A.P. 9th Cir. 2012) (abrogated by Clark) · DHS ACWDL 02-51 (Oct. 18, 2002), Q&A 10 · McMullen v. Haycock (2007) 147 Cal.App.4th 753; Cal. Code Civ. Proc. §703.080(a) · verified 2026-07-24

Four California fears you can retire

State-tax folklore runs ahead of the law — and California generates more folklore than most. Each of these is wrong:

• verified“California taxes your retirement for ten years after you leave” — dead law. California really did source-tax former residents’ retirement income once — which is why the myth survives — but Congress banned the practice in 1996 (P.L. 104-95, 4 U.S.C. §114), and California codified the ban (R&TC §17952.5). FTB’s own Pub 1005 lists “Roth IRA conversions” and “Roth IRA distributions” as income California does not tax for nonresidents. The fight is only ever about whether you actually stopped being a resident.
• verified“Los Angeles or San Francisco will add a city tax” — they can’t. State law prohibits every California city and county from taxing personal income (R&TC §17041.5). Whatever a conversion costs you in state tax, the local add-on is zero — the exact opposite of New York City’s up-to-3.876% or Yonkers’ surcharge.
• verified“Medi-Cal has no asset test anymore” — stale since January. True for exactly two years. California eliminated the Non-MAGI asset test in 2024 (a national first), then reinstated it on January 1, 2026 at $130,000 per person — and the 2026 budget schedules a drop to $21,000 on July 1, 2027. Most articles online still carry the 2024 rule.
• verified“Converting early triggers the penalties” — the conversion itself never does. A Roth conversion at any age owes income tax but no early-withdrawal penalty, federal or Californian — the 10% + 2.5% stack applies only to money you pull out early (or converted dollars withdrawn within their 5-year recapture window). Converting at 45 costs tax; it doesn’t cost penalties.

The fine print that actually bites

Everything below comes from statutes, official instructions, and program documents surfaced during verification:

• priority_highCalifornia charges its own early-withdrawal penalty — and it rides every federal rule. R&TC §17085(c) adds 2.5% on top of the federal 10% (12.5% combined) on the taxable part of an early nonqualified withdrawal, computed under the same §72(t) mechanics — which means the federal 5-year conversion recapture has a silent California twin. Withdraw converted dollars within five years, before 59½, and both penalties hit. SIMPLE-IRA money in its first two years fares worse: 25% federal + 6% California.
• priority_highThe estimated-tax staircase is shaped like a trap. California installments are 30/40/0/30 — not four even quarters — and a December conversion looks like income you should have prepaid since April unless you file the FTB 5805 annualization schedule. One big payment can also trip mandatory e-pay (a $20,000 estimated payment or $80,000 of tax): every later payment must then be electronic or a 1% penalty applies.
• priority_highCross $1,000,000 of AGI and the safe harbor disappears. At AGI of $1M+ ($500K married filing separately), R&TC §19136.3 kills the prior-year safe harbor entirely: you must pay 90% of the current year’s tax as you go. A large conversion is exactly the kind of income that triggers this — and exactly the kind people forget to prepay.
• priority_highThe $1M surtax line doesn’t double for couples. The 1% Behavioral Health Services Tax (R&TC §17043) starts at $1,000,000 of taxable income for every filing status — a fixed line, not indexed, not doubled for joint filers. A conversion that crosses it pays 13.3% on the excess, and pushes the whole return into the no-safe-harbor zone above.
• priority_highCalSavers doesn’t check whether you’re allowed to contribute. The state’s auto-enrollment Roth applies the federal MAGI limits — but nobody screens for them. A high earner at a small employer can be auto-enrolled into excess contributions accruing the federal 6%-per-year excise until fixed (California itself imposes no parallel excise — FTB 3805P says so). The program’s own FAQ points you to the IRS to check your eligibility.
• priority_highThe 529→Roth rollover that’s free federally costs money here. California never conformed to SECURE 2.0 §126 (R&TC §17501(f)): a 529→Roth rollover is a nonqualified withdrawal for CA purposes — the earnings are CA-taxable plus a 2.5% additional tax. With no CA 529 deduction to recapture, the earnings hit is the whole cost, but it’s real money the federal rules never warn you about.
• priority_highCommunity property can override your beneficiary form. A Roth funded with community earnings is community property no matter whose name is on it (Family Code §760). Name someone other than your spouse as beneficiary without written spousal consent, and the surviving spouse can claim their one-half community interest over the form. IRAs have no federal spousal-consent requirement — in California, the state supplies its own.
• priority_highProperty Tax Postponement has a hard income cliff — and conversions count. The state’s PTP program (deferring property tax for 62+/blind/disabled homeowners) caps household income at $55,181 (2025–26 cycle) — and its income definition (R&TC §20503) counts IRA withdrawals and conversion income. One conversion can cost a senior the deferral for the year.

Methodology & update log

This page is built from a 79-fact dataset researched exclusively from primary sources — California statutes, Franchise Tax Board publications and current form instructions, court opinions, DHCS All County Welfare Director Letters, and official program documents. An independent adversarial pass then re-fetched every cited source, checked each quote verbatim, hunted for superseding guidance, and re-derived the arithmetic: 74 of 79 facts confirmed, and the five corrections caught two stale citations, a Medicaid asset-limit sunset most of the internet hasn’t noticed, a look-back rule that issued mid-research, and one statutory-scope fix. Where the state publishes nothing, the page says so rather than guessing.

• 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).

Spot an error? Tell us — corrections are logged in the changelog.

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