Author: State Income Tax Guide Editorial Team

California state income tax filing provides individuals an automatic six-month extension, though tax payments remain due by April 15.

The California individual income tax return due date for the 2025 tax year is April 15, 2026, with an automatic extension to October 15.

California tax refund delays happen due to processing volumes, errors, and fraud prevention measures by the Franchise Tax Board.

New York State tax refund tracking instructions explain how to use the official Department of Taxation and Finance website tool.

California state tax refund timelines range from seven to ten business days for direct deposit up to two months for paper returns.

New Jersey state tax filing rules, progressive brackets, residency requirements, and the required documents for returns.

North Carolina state income tax rules, Form NC-400 filing thresholds, part-year residency, and the flat 4.25 percent tax rate.

Georgia state tax filing rules, Form IT-500 requirements, taxable income categories, and the 2026 retirement exclusion limits.

Ohio state tax residency categories, income thresholds, and school district rules determine who must submit an IT 1040 form.

Pennsylvania taxes nearly all taxable income at one flat rate, 3.07% in 2026, so earners of $50,000 and $500,000 pay the same percentage.