2025 Form 540 Schedule Ca. H&r block tax software will choose the right state form for you. Attach both the federal schedule a (form 1040) and california schedule ca (540) to the back of your tax return.
The california standard deduction for 2024 tax returns filed in 2025 is $5,540 for those who are single or married filing separately, and $11,080 for those who are married filing. Ftb form 540, also known as the california resident income tax return, is the primary tax form used by california residents to report their annual income and calculate their state income tax.