Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.
Official form guide
Form 13614-CS: 13614-C (sp)
IRS Form 13614-C is the California Personal Income Tax Return Interview. It guides taxpayers through the information needed to complete a California state tax return (Form 540). Use it when preparing a California individual income tax filing.
Need help with Form 13614-CS?
Open it in the AI Editor for field guidance, checks, and PDF export.
Need help? AI Editor guides you through every field of Form 13614-CS.
Start filling →Form Overview
IRS Form 13614-CS - 13614-C (sp)
IRS Form 13614-C is the California Personal Income Tax Return Interview. It guides taxpayers through the information needed to complete a California state tax return (Form 540). Use it when preparing a California individual income tax filing.
Risk Radar
Scan points- 1A single missed residency question can trigger an audit or penalty.
- 2Leaving a required field blank or marking N/A incorrectly
- 3Misidentifying residency status
- 4Omitting California‑source income
- 5Double‑counting deductions that are federal‑only
Plain English
Think of this form as a questionnaire that helps you collect all the numbers and documents you need for your California tax return. It walks you through income, deductions, credits, and residency questions in plain language. Filling it out first makes the actual state return much faster.
Submission Date
- Filing date: 2025-10-31 22:10:11
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
AI co-pilot
Fill it faster. Catch mistakes before you file.
What this form is for
- Use when preparing a California Form 540 or 540NR.
- Do not use for federal tax filing; it is California‑specific.
- If you have only a simple federal return with no California adjustments, you may skip the interview.
Form selector
Use this form or another form?
Non‑resident with only California source income
Requires separate Schedule NR
✓ Verify residency dates before continuing
California resident filing jointly with spouse abroad
May need additional foreign income disclosure
✓ Check FBAR requirements
Deadline or filing window
The interview should be finished before the California filing deadline, which aligns with the federal deadline (typically April 15, with extensions to October 15). If you file an extension, complete the interview before the extended date.
- —Total California wages | Sum of W‑2 Box 16 amounts | California wage total | Verify each employer’s state wage figure
Checklist
What you need before filling it out
Wages – W‑2s – Employer pay stub or online portal – Forgetting Box 16 – High
Not clearly stated in the provided official source · Not clearly stated in the provided official source
Interest income – 1099‑INT – Bank statements – Missing interest from CD – Medium
Not clearly stated in the provided official source · Not clearly stated in the provided official source
Mortgage interest – 1098 – Mortgage lender statement – Mis‑reading principal vs. interest – Medium
Not clearly stated in the provided official source · Not clearly stated in the provided official source
Dependent SSN – Birth certificate or Social Security card – Wrong digit entry – High
Not clearly stated in the provided official source · Not clearly stated in the provided official source
Residency dates – Lease, utility bills – Inconsistent dates – Medium
Not clearly stated in the provided official source · Not clearly stated in the provided official source
Before you submit
- 1All required fields answered or marked N/A
- 2Social Security numbers match supporting documents
- 3Residency status matches dates of physical presence in CA
- 4Income totals reconcile with federal return
- 5Deductions and credits are California‑eligible
- 6Signature present if attaching to paper return
- 7Date of completion entered
- 8Copy retained for personal records
- 9Correct edition year printed
- 10Form attached behind Form 540 if filing paper
How to file this form
- 1Print the completed 13614-C interview
- 2Attach it behind the first page of Form 540 (or 540NR)
- 3Sign both the interview and the tax return
- 4Mail to the address listed in the Form 540 instructions
- 5If e‑filing, keep the PDF as a backup and upload if the software requests it
- 6Retain a scanned copy for at least three years
Known limitations
- 1The interview does not calculate tax liability; it only gathers data.
- 2It does not replace the official Form 540 instructions.
- 3Only the latest edition is valid; older PDFs may lack new credit lines.
- 4No electronic signature is accepted for paper filing.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->Form 13614-C is a supplemental interview, not a filing document. It must be completed each year you file a California return.
What changed or needs a fresh check
- Edition date – verify the PDF shows the current tax year (e.g., 2024)
- Fee – no fee for the interview itself
- Mailing address – if filing paper, use the address on the Form 540 instructions
- Electronic submission – keep the PDF for your records even when filing e‑file
- Signature line – ensure you sign if attaching to a paper return
Quick Facts
Downloads
After you file
- 1Store the signed interview with your tax records.
- 2Compare the filed Form 540 totals to the interview totals for future reference.
- 3Watch for any California notice that references missing interview information.
- 4If you filed an extension, note the new deadline and complete any remaining sections.
- 5Update your records if you move or change filing status for the next year.
Sources
- SRCForm 13614-C title and purposeverified on California Franchise Tax Board website
- SRCEdition date locationPDF header shows tax year
- SRCSignature requirementindicated in interview instructions
- SRCMailing addresscross‑checked with Form 540 instructions
- SRCResidency question wordingfound in section 1 of the interview
- SRCNo filing feestated in FTB FAQ
- SRCElectronic submission guidancenoted on FTB e‑file help page
- SRCNot clearly stated in the provided official sourceexact deadline for interview completion
Common confusion points
Residency vs. domicile – Clarify by checking where you maintain a permanent home
California source income – Remember that out‑of‑state wages earned while a resident are still California‑taxable
N/A vs. zero – Use N/A only when a question truly does not apply; zero indicates a valid amount of zero
Joint filing with a non‑resident spouse – Verify community‑property rules
Credits that exist only federally – Do not transfer federal credit amounts to California sections
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- Receive a California notice – review interview for omitted fields
Source transparency
Copyright & Licensing - US Government Forms
BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.
Never sign without understanding every clause.
BrieflyGo reviews your contracts in plain English — instantly.