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Worthless Securities Deduction in California 2026

Calculate your worthless securities deduction tax savings in California. With California's 13.3% top state tax rate, your combined savings are higher.

California Tax Overview

State Income Tax
13.3%
progressive
Sales Tax
7.25%
avg combined: 8.68%
Property Tax Rate
0.71%
Median Income
$91,905

Highest state income tax (13.3%). Additional 1% Mental Health Services Tax over $1M. No preferential capital gains rate.

California Income Tax Brackets (Single)

1%
$0 - $10,412
2%
$10,412 - $24,684
4%
$24,684 - $38,959
6%
$38,959 - $54,081
8%
$54,081 - $68,350
9.3%
$68,350 - $349,137
Your bracket
10.3%
$349,137 - $418,961
11.3%
$418,961 - $698,271
12.3%
$698,271 - $1,000,000
13.3%
$1,000,000 +
$1,565
Est. Total Savings
No Limit
Max Deduction
Both Methods
Deduction Type
31.3%
Combined Tax Rate

Worthless Securities Deduction Savings Calculator for California

$
$

Federal Savings

$1,100

22% bracket

California State

$465

9.3% rate

Total Savings

$1,565

31.3% combined

At a 31.3% combined tax rate in California, every $1,000 in deductions saves you $313 in taxes.

Savings by Tax Bracket in California

10%
$965
12%
$1,065
22%
$1,565
24%
$1,665
32%
$2,065
35%
$2,215
37%
$2,315

Includes 9.3% California state tax on top of federal savings.

Eligibility Requirements

Investors holding securities that became completely worthless during the tax year

  • 1Security must be completely worthless
  • 2Treated as sold on last day of tax year
  • 37-year statute of limitations applies
  • 4Can be capital or ordinary loss depending on holding

California residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 13.3%.

Common Mistakes to Avoid

  • !Not claiming in the correct year of worthlessness
  • !Missing the extended 7-year refund claim period
  • !Confusing partial decline with total worthlessness
  • !Forgetting to claim the deduction on your California state return (missing up to 13.3% additional savings)

California Filing Tips

Maximize tax-deferred contributions. Plan for the additional 1% surcharge over $1M. If leaving California, document your move thoroughly. The FTB aggressively audits departing high-income residents.

Required Tax Forms

Form 8949Schedule D

File these forms with your federal tax return to claim the worthless securities deduction. California may require additional state-specific forms.

Other Tax Deductions in California

Capital Loss Deduction

Investment

~$939
est. savings

Tax-Loss Harvesting

Investment

~$7,114
est. savings

Investment Interest Expense

Investment

~$2,134
est. savings

Qualified Dividend Tax Rate

Investment

~$4,268
est. savings

Opportunity Zone Investment

Investment

~$14,227
est. savings

1031 Like-Kind Exchange

Investment

~$42,682
est. savings

QSBS Exclusion (Section 1202)

Investment

~$142,273
est. savings

Installment Sale

Investment

~$11,382
est. savings

Worthless Securities Deduction in Neighboring States

Oregon

9.9% top rate (progressive)

~$4,350
+2,785 vs California

Nevada

No state income tax

~$3,000
+1,435 vs California

Arizona

2.5% top rate (flat)

~$3,341
+1,776 vs California

Tax Calculators for California Cities

Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoLong BeachOaklandBakersfieldAnaheim

Calculate Your Full Tax Savings in California

Use our free tax calculators to optimize your entire tax return for California.

Income Tax CalculatorCalifornia Income TaxFull Worthless Securities Deduction Guide

Frequently Asked Questions

How much can I save with the Worthless Securities Deduction in California?

In California, the worthless securities deduction can save you an estimated $1,565 per year on a $5,000 deduction. This includes $1,100 in federal tax savings and $465 in California state tax savings at the 9.3% marginal rate. The national average savings is $3,000/year.

What is the California state income tax rate?

California has a progressive income tax system with a top rate of 13.3%. Highest state income tax (13.3%). Additional 1% Mental Health Services Tax over $1M. No preferential capital gains rate.

Who qualifies for the Worthless Securities Deduction in California?

Investors holding securities that became completely worthless during the tax year. The eligibility requirements are the same whether you live in California or another state, as this is a federal tax deduction. However, your total savings will vary based on California's 13.3% top state tax rate.

What tax forms do I need to claim the Worthless Securities Deduction in California?

To claim the worthless securities deduction, you need to file Form 8949 and Schedule D with your federal return. California residents should also check if the state allows this deduction on their state return for additional savings of up to 13.3%. Filing status affects your deduction limits and tax bracket.

Is the Worthless Securities Deduction better in California than in states without income tax?

Yes, California residents benefit more because the state's 13.3% top income tax rate means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 31.3% means more savings per dollar deducted.

What is the standard deduction in California for 2026?

California's standard deduction is $5,540 for single filers and $11,080 for married filing jointly. Maximize tax-deferred contributions. Plan for the additional 1% surcharge over $1M. If leaving California, document your move thoroughly. The FTB aggressively audits departing high-income residents.

Related Calculators

Capital Loss Deduction in California

Avg savings: $660/year

Tax-Loss Harvesting in California

Avg savings: $5,000/year

Investment Interest Expense in California

Avg savings: $1,500/year

Qualified Dividend Tax Rate in California

Avg savings: $3,000/year

Opportunity Zone Investment in California

Avg savings: $10,000/year

1031 Like-Kind Exchange in California

Avg savings: $30,000/year