How long do I have to sue over written contract in Wisconsin?
Answered for: Wisconsin
893.43 Action on contract. ... an action upon any contract, obligation, or liability, express or implied, including an action to recover fees for professional services ... shall be commenced within 6 years after the cause of action accrues or be barred.
The statute states 6 years for written contract. When that clock starts, and whether it can be paused, are separate questions this entry does not answer.
This answer is true in Wisconsin and nowhere else on this site. Another jurisdiction is another answer, or an honest gap: see what has been read for Wisconsin.