CalSTRS Taxes: Federal and California Treatment of Your Pension

No California exemption — a common point of confusion

Some states fully or partly exempt public pensions from state income tax; California is not one of them. CalSTRS retirement income is taxed by California at the same progressive rates that apply to other ordinary income — there is no special pension carve-out. California also does not conform to the new federal enhanced deduction for seniors. For 2025, California's own senior exemption credit is $153 per eligible person, subject to the state's credit rules; it is a credit, not a percentage exclusion of the pension.

A new federal deduction for some retirees age 65 and older

For tax years 2025 through 2028, an eligible taxpayer age 65 or older may claim a separate federal enhanced deduction for seniors of up to $6,000 ($12,000 for a qualifying joint return when both spouses are eligible). The deduction phases down when modified adjusted gross income exceeds $75,000 for most single filers or $150,000 for joint filers, and other eligibility rules apply. It can lower federal taxable income, but it does not make a CalSTRS pension payment tax-exempt or change the taxable amount reported on Form 1099-R. California does not conform to this federal deduction, so the state return treats it separately.

California's rate structure, and why the top rate looks so high

California uses nine progressive brackets running from 1% up to 12.3%, and adds a 1% Mental Health Services Tax (now the Behavioral Health Services Fund) on taxable income above $1,000,000, which is where the often-quoted 13.3% top rate comes from. For the large majority of CalSTRS retirees whose total taxable income is well under that $1 million threshold, the relevant rates are the standard 1%-through-9.3%-plus brackets, not the eye-catching top figure — but the practical point stands regardless of bracket: your CalSTRS benefit stacks on top of any other California-taxable income and is taxed at your marginal rate, not a flat or reduced pension rate.

The federal side: nearly all of it is taxable, with one exception

Federally, CalSTRS benefits follow the same logic as most defined-benefit pensions: contributions made pre-tax during your career, plus all investment growth and the employer/state funding share, come out as ordinary taxable income when distributed. Only the portion representing your own after-tax contributions — if you have any — is recovered tax-free, using the cost-basis method detailed in California FTB Publication 1005 (which covers the federal simplified method as it applies to California filers specifically, since the state and federal cost-basis figures can differ slightly for older accounts).

CalSTRS reports the breakdown on your annual Form 1099-R: Box 1 is your total gross benefit, Box 2a is the federally taxable amount, and the difference is the non-taxable, already-taxed portion of your own contributions.

Managing withholding on both returns

Because there's no state exemption to offset, CalSTRS retirees generally need withholding (or estimated payments) that cover both a federal and a California state liability — a bigger combined bite than a retiree in a pension-exempt state would face on the identical benefit amount. CalSTRS's own Income Tax Withholding Preference Certificate is built around the current IRS Form W-4P and Form W-4R (the post-2022 versions, which replaced the old allowance-count system with direct dollar and deduction entries) along with California's EDD Form DE-4P for the state-withholding side.

Review your withholding whenever your income situation changes — a spouse retiring, a part-time job, other pension income starting — since CalSTRS won't automatically adjust it for you, and underwithholding on two tax returns at once compounds faster than on one.

Refunds and rollovers are taxed differently than a monthly annuity

Everything above describes a standard monthly CalSTRS annuity. If you instead take a lump-sum refund of your contributions — for example, after leaving CalSTRS-covered employment without retiring — the withholding rules change sharply. CalSTRS is required by the IRS to withhold 20% for federal income tax on any refund paid directly to you rather than rolled over, and California state withholding on a direct payment is a flat 2% unless you elect otherwise; roll the refund directly into an IRA or another qualified plan instead, and CalSTRS withholds nothing on the rollover-eligible portion.

Taking a cash refund before age 59½ can also trigger an additional 10% federal early-distribution tax and an additional 2.5% California early-distribution tax on top of ordinary income tax — a combined bite that can catch members off guard if they're comparing a refund against a rollover purely on the headline withholding percentage rather than the full tax cost.

If you move out of California after retiring

Moving to a state with no income tax, or one that exempts pension income, generally removes the state-tax side of this equation going forward — California generally cannot tax pension income paid to a nonresident under federal law (4 U.S.C. § 114), though your final part-year return as a California resident still applies normally for income earned while you lived there. This is a common enough question that it's worth confirming your specific situation with a tax professional rather than assuming residency alone settles it, particularly around the exact date your California residency ends.

The senior exemption credit is small — don't mistake it for a pension exclusion

California's senior personal-exemption credit for filers 65 and older is a fixed dollar credit against your total tax liability, not a percentage exclusion of pension or any other specific income type. It's worth claiming, but it does not meaningfully offset ordinary state tax owed on a substantial CalSTRS benefit the way a genuine pension exemption would in a state that has one.