Can you sue for money that was owed ten years ago?

Yes, you can sue for money that was owed ten years ago, but it largely depends on the statute of limitations in your jurisdiction, which sets a time limit for filing a lawsuit. In many places, the statute of limitations for contract disputes is between three to six years, but it may vary. If the statute of limitations has expired, you may be barred from recovering the debt. It's advisable to consult a legal professional to understand your specific situation and options.