State Unemployment Insurance Audits: What Employers Need to Prepare

What triggers a UI audit

State DWD agencies audit employers for a range of general reasons — including payroll discrepancies, unemployment claims filed by workers you classified as contractors, industry-wide initiatives targeting high-misclassification sectors, and routine compliance reviews. Receiving a notice doesn't indicate you're under criminal investigation; most audits are administrative reviews of records.

Industries that see higher audit rates include construction, staffing, logistics, healthcare support, and creative agencies — all sectors with high contractor density.

What the auditor is actually looking for

The core question in a UI audit for contractor relationships is whether the workers you classified as independent contractors should have been classified as employees — and therefore should have had UI taxes paid on their wages.

Most states use a multi-factor test to evaluate this. Indiana uses the ABC test, which requires that a worker meet all three of these criteria to be properly classified as a contractor:

• A — Free from control. The worker is free from direction and control in the performance of their work, both under their contract and in fact.
• B — Outside usual business. The worker performs services either outside the usual course of the hiring entity's business, or outside all of the hiring entity's places of business.
• C — Independently established. The worker is customarily engaged in an independently established trade, occupation, profession, or business of the same nature as the work performed.

Note that the ABC test is different from the federal IRS Common Law Test. A worker can pass the IRS test and still fail the state test. You need documentation that addresses both if you are operating in a state with an ABC test requirement.

What documentation the auditor will request

Every audit is different, but a standard contractor-focused UI audit typically requests the following:

• Payroll and payment records for the audit period (check registers, bank statements, ACH records)
• Vendor or contractor list with names, amounts paid, and descriptions of services
• Contractor agreements (signed, dated, covering the work performed)
• W-9 forms on file for each contractor
• Evidence of the contractor's independent business status (business license, EIN, Certificate of Insurance, website, evidence of other clients)
• Invoices submitted by the contractor for services rendered

How to package your records for the auditor

Auditors review many employers. Clear, organized documentation is not just a courtesy — it signals professionalism and reduces follow-up requests. For each contractor being reviewed:

• Cover sheet: Contractor name, EIN/SSN type, engagement dates, total paid, classification basis in plain language
• Contract: Signed agreement, any amendments, clear scope and deliverable language
• W-9: Current, signed, name and TIN matching your payment records
• Invoices: Chronological, matching your payment records
• Proof of independence: Business license, EIN documentation, COI, website, evidence of other clients

A packet organized per contractor — with everything in the order above — allows an auditor to review each relationship systematically. Sending a disorganized box of files creates delays and more questions.

If documentation is missing

If documentation does not exist — the contract was verbal, the W-9 was never collected, no invoices were retained — you will need to explain the nature of the relationship through other means. This is more difficult and less reliable.

If the auditor cannot be satisfied that the relationship meets the state's classification standard, a reclassification finding may follow. This typically results in UI tax assessments for the applicable wages, plus interest and penalties. The amounts depend on the number of workers, the wages paid, and the duration of the audit period.

If you receive a finding you believe is incorrect, most states have an appeals process. Consult legal counsel before responding to a finding.

Getting audit-ready before any notice arrives

The best time to prepare for a UI audit is when you onboard each new contractor — not when you receive the notice. If your current contractor files are organized with signed agreements, current W-9s, and organized payment records, an audit is a documentation exercise, not a crisis.

Classifi's audit packet generation organizes your contractor documentation into the exact format an auditor expects — cover sheet, contract status, W-9 status, payment ledger, and independence proofs — so you can respond to any records request in minutes.