South Dakota is a strong at-will employment state by statute. Under SDCL 60-4-4, "an employment having no specified term may be terminated at the will of either party on notice to the other, except where otherwise provided by this title." In plain terms, if you do not have a written contract for a fixed term, your employer can fire you for a good reason, a bad reason, or no reason at all, and you can quit on the same basis. South Dakota courts have repeatedly described this as a strong presumption, and the burden falls on the employee to prove that one of the narrow exceptions applies. Unlike some states, South Dakota's high court has declined to adopt a broad implied covenant of good faith and fair dealing as an exception to at-will employment, so the real legal fights here usually turn on the public policy exception and on whether a handbook created an implied contract.
What "At-Will" Actually Means in South Dakota
At-will employment means there is no requirement that your employer have "cause" to let you go. A firing that feels unfair, harsh, or even based on a misunderstanding is generally legal in South Dakota. The law does not guarantee a warning, a performance-improvement plan, severance, or a chance to explain. What at-will does not mean is that an employer can fire you for an unlawful reason. The line between a legal firing and an illegal one is the heart of every wrongful-termination question in South Dakota: a termination is wrongful only when it violates a specific statute, a recognized public policy, or an enforceable contract promise.
To tell the two apart, ask: was the stated or real reason something the law specifically forbids? Being fired because the boss simply does not like you, because business is slow, or because a coworker was favored is lawful at-will conduct. Being fired because of your race or because you reported illegal activity is not. The reason, not the fairness, is what matters.
The Recognized Exceptions in South Dakota
1. The Public Policy Exception
South Dakota recognizes a public policy exception to at-will employment. The South Dakota Supreme Court adopted it in Johnson v. Kreiser's, Inc. (1987), holding that an employer may be liable for wrongful discharge when an employee is fired for a reason that violates a clear mandate of public policy. South Dakota has kept this exception narrow. It generally applies in two situations:
- Refusing to commit an unlawful act - you are fired because you would not break the law for your employer (for example, refusing to falsify records or violate a regulation).
- Exercising a legal right or duty, or whistleblowing on illegal conduct - for example, being terminated in retaliation for filing a workers' compensation claim, or for refusing to participate in conduct the law prohibits.
The public policy must be tied to a recognized statutory or constitutional source, not just the employee's personal sense of right and wrong. A general claim that a firing was "unfair" or "in bad faith" does not satisfy this exception in South Dakota.
2. The Implied-Contract Exception
South Dakota recognizes that an employee handbook, personnel manual, or oral assurance can, in some circumstances, modify the at-will relationship and create an implied contract. In Osterkamp v. Alkota Manufacturing, Inc. (1983) and later cases, the court held that handbook language promising specific disciplinary procedures or termination only "for cause" may be enforceable as a contract term. If your employer promised, in writing or through consistent practice, that it would follow certain steps before firing you, and then ignored those steps, you may have a breach-of-contract claim even though South Dakota is at-will.
Employers know this, which is why most South Dakota handbooks contain a prominent at-will disclaimer stating that nothing in the document creates a contract and that employment remains terminable at will. Courts generally enforce clear, conspicuous disclaimers, which preserve the at-will presumption and defeat an implied-contract claim. Read your handbook closely: the presence or absence of such a disclaimer often decides the case.
3. The Covenant of Good Faith and Fair Dealing
This is where South Dakota differs from a handful of other states. South Dakota has not recognized a freestanding implied covenant of good faith and fair dealing as a basis for a wrongful-discharge claim in the at-will context. You generally cannot win simply by arguing your employer acted in bad faith or terminated you to avoid paying a commission or pension absent a contract term. If you see this exception listed for other states, do not assume it applies in South Dakota - it does not, as a general matter.