File New-Hire Report (State CSV / Fixed-Width)

Skill: Convert new-employee data into a state new-hire report

Region: United States Category: Social security / Payroll Does: Takes a newly hired (or rehired) employee's W-4 dataset and assembles the New-Hire Report that employers submit to their state workforce / new-hire reporting agency, which forwards it to the National Directory of New Hires (NDNH) maintained by the federal Office of Child Support Services (OCSS). Spec: State new-hire reporting program — state CSV / fixed-width layout (federally mandated minimum data elements)

New-hire reporting is a federal mandate (Personal Responsibility and Work Opportunity Reconciliation Act, 42 U.S.C. § 653a) administered state by state. Employers must report each new and rehired employee, generally within 20 days of the hire date (states on electronic/magnetic media report twice monthly, 12–16 days apart). The data feeds child-support enforcement and benefit-fraud detection via the NDNH. Each state defines its own file format and submission channel, so the field/element names below follow the federally required data set as expressed on the state's form — not any one verbatim schema.

When this applies

• An employer hires a new employee or rehires a former employee who has been separated for a state-defined period (commonly 60 days) — both require a new-hire report.
• Reports are due within 20 days of the date of hire (the first day services are performed for pay); employers reporting electronically report at least twice a month.
• Multistate employers may elect to report all hires to a single state (designated in writing to OCSS) instead of to each state of employment.
• Employers with employees in a state generally must enroll with that state's new-hire reporting program before submitting.

Structure (W-4 data → new-hire report)

File header / transmitter (employer submitting the batch)
  Employer FEIN
  Employer name + reporting address
  (optional) state employer / unemployment account number
  Multistate-employer designation indicator + chosen state
Employee record (one per new/rehired employee)
  Employee SSN
  Employee first / middle / last name
  Employee home address (street, city, state, ZIP)
  Date of hire (first day worked for pay)
  (some states also require) date of birth, state of hire,
    employee start-of-work state, employer contact
Trailer / totals (record count)

Data rules

• Federally required minimum data elements: employee name, address, and SSN; employer name, address, and FEIN. States may require additional fields (date of hire, date of birth, state of hire) — include them where the target state's layout calls for them.
• The SSN is the employee's 9-digit number from the Form W-4 (no dashes in fixed-width layouts); the name should match the SSN as shown on the W-4.
• Date of hire is the first day the employee performs services for pay; use the format the state specifies (YYYYMMDD, MMDDYYYY, or CSV MM/DD/YYYY).
• A rehire of a previously separated employee is reported as a new hire — do not suppress it.
• Reconcile the record count in the trailer with the number of employee records; deduplicate so each new hire is reported once.
• Submit through the state's accepted channel (secure web portal upload, SFTP, or magnetic media) within the deadline.

Worked example (outline)

Employer: ACME LLC  FEIN=123456789  Address=100 Main St, Sacramento CA 95814
Multistate indicator: N
Employee record:
  SSN        = 123456789
  Name       = DOE, JANE M
  Address    = 22 Oak Ave, Sacramento CA 95816
  Date hired = 2026-06-01   (first day worked for pay)
Trailer: record count = 1

Submitted to the state new-hire reporting agency (here, California EDD) within 20 days of the hire date; the state relays the record to the federal NDNH.

Validation checklist

• Target state's current new-hire file layout and channel confirmed (CSV vs. fixed-width; portal/SFTP/media)
• Employer FEIN, name, and reporting address present
• Each employee record has valid 9-digit SSN, full name, and home address from the W-4
• Date of hire included and correctly formatted; any state-required extra fields (DOB, state of hire) supplied
• Rehires included; records deduplicated so each hire reported once
• Multistate-employer single-state election applied consistently if designated
• Trailer record count reconciles with employee records
• Submitted within 20 days of hire (twice-monthly cadence if electronic)

Last updated: 2026-06-04 — new-hire reporting is per-state under a federal mandate; confirm the target state's required data elements, file layout, submission channel, rehire definition, and deadline against the current state new-hire program and acf.hhs.gov / OCSS guidance before use.