Employer guideRead at source, 3 September 2026

Reference Checks: Questions to Ask, What Former Employers Can Say, and State Immunity Laws

The belief that a former employer may legally confirm only dates and job title is one of the most expensive myths in hiring, and it is not what the law says either. Forty-one of the fifty-one US jurisdictions have a statute that protects an employer who gives a job reference in good faith, and most of them presume good faith so the burden falls on whoever sues. Ten have nothing. Two states, Kansas and North Dakota, go further and give absolute immunity for a factual core. What the statutes add are conditions almost nobody follows: four states require the employee written consent before you may answer, and five require a copy of what you said to be sent to them. Below: the questions worth asking, the state table, and when a reference is worth less than a paid working interview.

What a former employer can legally say

Almost everything, in most of the country, provided it is said in good faith. These statutes were passed through the 1990s and 2000s precisely because employers had retreated to name, rank and serial number, and the retreat was making hiring worse. A typical one reads like Colorado C.R.S. 8-2-114: the employer is immune, and immunity is defeated only where the information was false and the employer knew or reasonably should have known it. Florida requires clear and convincing evidence of knowing falsehood. Wisconsin is stricter still on the plaintiff, requiring express malice, ill will or spite, and expressly rejecting the lower reckless-disregard standard used elsewhere.

So the dates-and-title policy is a corporate choice, not a legal requirement. It is defensible: it removes judgement calls from untrained managers, and no statute anywhere requires you to answer. But it should be made knowing that your legislature probably went out of its way to protect the opposite.

The conditions almost nobody follows

The immunity is not unconditional, and the conditions are where a well-meaning process quietly fails. Arkansas, Nebraska and Oklahoma require the employee written consent before it applies, and Arkansas and Nebraska specify the form: a separate document or bold, larger type, signed, dated, valid for a limited period. Minnesota requires written authorisation for its sensitive tier, meaning evaluations, disciplinary warnings from the last five years, and the reason for separation. A reference policy written for Ohio is simply non-compliant in those four.

Then the copy rule. Arizona requires a copy of any written communication to go to the employee last known address. Missouri requires the response in writing and a copy to the employee, who may request one for a year afterwards. West Virginia goes furthest: adverse information must be in writing, copied to the employee at the time, and if it later proves wrong, corrections go to everyone who received the original. Colorado, Kansas and South Dakota provide a copy on request.

Two more catch people out. The immunity in Idaho is subsection (2) of the blacklisting statute and in Rhode Island subsection (c) of the personnel files statute, so searching for a reference law in either finds nothing. And Montana repealed its immunity statute in 2003. Montana now runs the other way: section 39-2-801 obliges an employer to give a discharged employee the reasons on demand, and refusing makes it unlawful to give those reasons to anyone else.

Compiled 3 September 2026 from statutory text, read on the state legislature or revisor site where it would serve us and on a full code reproduction where it would not. California is included because Civil Code 47(c) functions as the equivalent, though it is a privilege rather than a dedicated act.

The service letter states, and the one that is new

A smaller group of states run the obligation the other way, requiring the employer to give a departing employee a written statement. Missouri is the classic: RSMo 290.140 requires a corporation with seven or more employees to give an employee of ninety days or more, on a certified-mail request citing the statute, a signed letter stating the nature and duration of service and the cause of discharge, within 45 days, on pain of nominal and punitive damages. Maine gives 15 days and a forfeiture of $50 to $500. Minnesota gives ten working days and immunises the statement itself from any defamation action.

The one to know about is new. Washington added a service letter duty in 2025: under RCW 49.12.250(1)(b), anyone who separated within the last three years may make a written request, and the employer has 21 days to give a signed statement with the effective date of discharge, whether there was a reason, and if so the reasons. It sits inside the rewritten personnel-file provisions rather than under a service letter heading, which is why it is easy to miss. In the other direction, Nebraska repealed its service letter statute in 2020, so anything still citing section 48-209 as a live obligation is out of date.

Questions worth asking in five minutes

A reference call for an hourly role is not an investigation. It is five minutes with a supervisor who has thirty seconds of real information and no obligation to share it. The structure that works: verify what you have, ask two questions only they can answer, finish with the rehire question.

Two techniques matter more than the list. Ask for the last real instance, not a characterisation. Was she reliable produces a yes from everyone; tell me about the last time she could not make a shift produces something usable. And when the rehire question is refused, ask whether that is a policy. An employer citing policy tells you nothing about the candidate. An employer that pauses tells you a great deal.

When a reference is worth less than a working interview

Here is the part we can speak to directly. For many frontline roles the reference call is a ritual that produces almost no signal and costs something real: days of delay, in a market where the candidate applied to several employers in one sitting. In our 2026 social job advertising benchmark the median campaign delivered an applicant for $13.88 and the volume-weighted average was $8.02. A process that loses a candidate to a three-day reference delay has thrown away the whole acquisition cost and has to buy another one.

Weigh the two honestly. A reference is worth the delay where the risk is catastrophic and invisible: a safety record, a licence issue, a pattern of conduct a shift will not reveal. It is worth much less where the question is simply can this person do the work, because a paid four-hour working interview answers that better, and answers it about the job you are actually offering. Where the certification is the risk, verify it with the issuing body rather than asking a supervisor to remember.

And if you check references to screen out rather than to decide, look at where that screening sits. The cheapest place to disqualify someone is the application, not a phone call three days later, which is what our employment application form page is about.

Two neighbouring pages finish the picture. Interview questions to ask candidates covers the conversation with the candidate, which is where most of the signal actually is. Hiring process steps puts the reference call in sequence with everything else, including the steps that carry a federal clock.

Frequently asked questions