Illinois: Employee Expense Reimbursement Requirements

Requirements one by one

The expense must meet several connected tests

Section 9.5 requires reimbursement only when the expenditure or loss is within
the employee's work scope and directly related to services for the employer.
It defines a necessary expenditure as reasonable, required in discharging job
duties, and primarily benefiting the employer.

The employer must also have authorized or required the cost, unless the
employer itself failed to follow its written reimbursement policy. A cost the
employee chose independently does not satisfy that statutory condition merely
because it was useful at work.

Employee fault and specified losses remain excluded

Section 9.5 excludes losses caused by the employee's negligence and normal
wear. Theft losses are also excluded unless the theft resulted from the
employer's negligence.

The section does not add a separate list for commuting, personal costs, or
expenses normally borne as a condition of employment. Those questions must be
resolved through the statute's necessity, work-scope, authorization, and
primary-benefit tests.

The request generally is due within 30 days

The employee must submit appropriate supporting documentation within 30
calendar days after incurring the expense. A written policy may give more time.
When the documentation does not exist or is missing or lost, the employee must
submit a signed statement about the receipts.

The statute states no fixed number of days for the employer to pay an approved
claim and no required payroll, separate-payment, advance, stipend, or interest
method.

A written policy may set real limits, but not eliminate payment

An employee may lose reimbursement by failing to comply with an established
written expense policy. The policy may set specifications or guidelines, and
the employer need not pay the portion above them.

That authority has an express boundary: the employer may not institute a policy
providing no reimbursement or only de minimis reimbursement.

The Act supplies agency and court routes

Section 11 permits an IDOL complaint and requires the complaint within one year
after the covered amount was due. It also lets an aggrieved employee sue in
Illinois circuit court without first exhausting the administrative process.
Code of Civil Procedure § 13-206 gives an action under the Wage Payment and
Collection Act a 10-year period.

Sections 9.5 and 11 do not state a reimbursement-specific damage multiplier,
attorney-fee award, interest rule, or payment deadline. Those provisions should
not be inferred from rules written for a different kind of underpayment.

What trips people up

The 30-day rule applies to the employee's submission, not the employer's
payment. Section 9.5 supplies no matching employer-payment clock.

A policy cap is not automatically valid merely because it is written. The
statute protects specifications and guidelines only while forbidding a policy
that reduces reimbursement to zero or a de minimis amount.

Common questions

Is every expense that helps the employer reimbursable?

No. The expense also must be reasonable, required in discharging duties, within
the employment scope, directly related to services, and authorized or required
by the employer.

What if a receipt is lost?

Section 9.5 requires a signed statement regarding receipts when supporting
documentation is nonexistent, missing, or lost.

May the employer require preapproval?

A written policy may set specifications or guidelines and require compliance.
It cannot use those terms to provide no reimbursement or only de minimis
reimbursement.

Statutes and sources

• 820 ILCS 115/1. Coverage, including local governments and school
  districts, with State and federal employees excluded. Official text
  (accessed July 14, 2026).
• 820 ILCS 115/9.5. Reimbursement standard, exclusions, 30-day request,
  documentation substitute, authorization, and policy limits. Official text
  (accessed July 14, 2026).
• 820 ILCS 115/11. IDOL complaint and circuit-court routes. Official
  text
  (accessed July 14, 2026).
• 735 ILCS 5/13-206. Ten-year limit for a civil action under the Wage
  Payment and Collection Act. Official text
  (accessed July 14, 2026).