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Reviewed by: William McLee
Reviewed date:
January 12, 2026

What California Form DE 9C (2017) Is For

The California Form DE 9C serves as the wage report that supports the quarterly contribution return and wage report. It records employee wage data, payroll checks, and withholding entries required by the Employment Development Department. All California employers must file it each quarter, even when using the zero-wage payroll filing requirement rules. 

The form links to California Form DE 9 totals, includes entries for each worker's Social Security number, and helps ensure accurate reporting for unemployment insurance, disability insurance, and personal income tax.

When You’d Use California Form DE 9C (2017)

Employers use the DE 9C when submitting a quarterly contribution return for a regular or seasonal employer filing cycle. Employers also use it to amend wage data or correct previously submitted employee wages. This form applies when responding to employer requirement notices or aligning payroll records with the quarterly wage report form DE 9C or the quarterly report of wages and withholdings. It also applies when wage entries need updates due to new hire rates, effective date updates, or enrollment date corrections.

Key Rules or Details for 2017

  • Electronic filing requirement: Employers subject to AB 1245 follow the e-file and e-pay mandate, and electronic submissions support accurate statewide reporting through the EDD e-services website. This rule strengthens employer compliance.

  • Accurate wage category reporting: Total wages, PIT wages, and withholding entries must match payroll records to prevent issues with the tax agency. This helps ensure proper employment training tax, as well as unemployment insurance calculations.

  • Full employee identification: Every entry requires a correct Social Security number and a complete legal name to support the processing of quarterly contribution returns and wage reports. This avoids delays in benefit calculations.

  • Complying with taxable wage limit: California applies a taxable wage limit that determines liability for state disability insurance and related taxes. Employers must verify the correct wage ceiling for the quarter.

  • Separate reporting for special groups: Workers covered by voluntary disability insurance plans or similar categories are required to submit individual reports to comply with insurance codes and health and safety regulations.

  • No payroll obligations: Employers must still file the DE 9C showing no payroll to meet filing requirements under Section 6522 and Government Code Section 100504.

Step-by-Step (High Level)

Step 1: Gather employee information

Collect employee wages, details of the wage data file, Social Security numbers, and payroll records. Confirm that employee wages align with federal forms, such as Form 940, Form 944, and IRS Publication 15, to ensure consistent reporting.

Step 2: Prepare Your Filing Method 

Utilize e-services or the business portal to fulfill the e-pay mandate. Confirm your federal employer identification number and employer account details before starting your online or paper submission.

Step 3: Enter wage data accurately

Record employee wage data, members' age if applicable, and all required entries exactly as they appear in payroll reports. Confirm that the contribution return and the report of wage totals match the quarterly contribution return summaries.

Step 4: Review totals and calculations

Verify that payroll tax deposit information, employment training tax amounts, and personal income tax entries match the underlying payroll records. Confirm accuracy before submitting any CSV format or paper filing.

Step 5: Submit the form and retain records

After submitting your quarterly contribution return and wage report, save confirmation details and maintain documentation for tax agency review. Keep payroll service records organized for future adjustments or amendments.

Learn more about federal tax filing through our IRS Form Help Center.

Common Mistakes and How to Avoid Them

  • Incorrect Social Security number entries: Using inaccurate numbers leads to mismatched employee records. You can avoid this situation by carefully checking each entry and comparing the numbers with payroll records before submission.

  • Mixing wage categories: Incorrectly combining total subject wages and PIT wages creates filing discrepancies. You can prevent errors by reviewing employee wages within the California employer guide every quarter.

  • Ignoring electronic filing rules: Failing to follow the e-file and e-pay mandate results in a failure-to-file penalty. You can avoid penalties by submitting through the EDD e-services website before the deadline.

  • Reporting incomplete wage totals: Leaving blank fields in the quarterly contribution return and report of wages (DE 9C) creates processing delays. You can prevent issues by verifying all employee wage data entries.

  • Sending unsupported amendments: Filing a corrected contribution return and report of wages without proper payroll records creates complications. You can avoid this by keeping accurate payroll records and using the IRC section 408(d)(2) rules properly.

  • Incorrect classification for special groups: Misreporting seasonal employer or special-category wages results in errors. You can avoid such problems by confirming exemptions under Senate Bill 833 or related statutes before filing your return.

Learn more about how to avoid business tax problems in our guide on How to File and Avoid Penalties.

What Happens After You File

The Employment Development Department reviews totals, wage entries, and withholding information to verify the accuracy of unemployment insurance and state disability insurance reporting. The tax agency updates quarterly contribution return records, verifies employment training tax amounts, and compares wage totals against DE 3BHW, DE 88 filings, and the quarterly contribution return and report of wages (DE 9). Employers may receive notices if mismatches occur, and corrections require accurate payroll records to be in place.

FAQs

Do I need to file the DE 9C if I report zero wages for the quarter?

Yes, employers must file using the zero wage payroll filing requirement to stay compliant and maintain active status within the Employment Development Department system.

Why does DE 9C ask for detailed employee wage data?

The form documents employee wages, taxable wage limit entries, and withholding amounts needed for unemployment insurance, disability insurance, and personal income tax reporting.

Can amended filings be submitted electronically under AB 1245?

Yes, employers use the e-file and e-pay mandate through e-services for businesses to submit corrections when adjusting employee wage data or withholding entries.

How does the California assembly bill affect electronic filing?

It establishes mandatory electronic filing rules for contribution returns and wage reports, thereby enhancing the accuracy and timeliness of wage data delivery.

Does DE 9C coordinate with federal tax filings?

Yes, wage entries often align with Form 1099-MISC, IRS Form 1065 Schedule K-1, IRS Form 1040 Schedule C, and other forms to support consistent payroll records.

How does wage reporting impact unemployment insurance?

Accurate reporting supports unemployment insurance calculations, unemployment rate assessments, and compliance with federal FUTA tax requirements.

Are retirement-related entries allowed in wage reporting?

Yes, entries involving a Roth IRA or partnership agreement may impact withholding records if required under federal rules such as IRC section 408(d)(2).

For a detailed breakdown of requirements, process, and step-by-step instructions, see our guide on Unfiled California Tax Returns.

https://www.states.gettaxreliefnow.com/State%20of%20California/Form%20DE%209C.pdf
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