Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 231, § 140B

Any person against whom a claim or suit for damages on account of bodily injury, property damage, or death is made, or if such person is insured against loss by reason of his liability to pay such damages the insurer of such person may advance money to, or pay bills incurred by or on behalf of, such claimant, or plaintiff, as the case may be, without affecting the question of liability for such damages, and evidence of such payments shall not be admissible at the trial of such suit on the issue of liability or to mitigate damages; but if, in such case, there shall be a judgment in favor of the plaintiff for money damages, the presiding judge of the court in which the judgment is entered shall, upon motion of the defendant, credit upon such judgment the amount of such payments.

Any such insurer who makes an advance payment under this section shall at the time of making such payment, by notice in writing, inform the claimant of the statute of limitations applicable to his claim and the time within which an action is required to be commenced to enforce such claim in a court of competent jurisdiction.

The cause of action of any claimant who receives an advance payment under this section but who is not given the written notice required hereunder shall accrue on the date such written notice is actually given and not on the date the injury or damage was sustained.