N.H. Rev. Stat. Ann. § 568:17

All claims shall be proved against the estate within 2 months from the beginning of the insolvency proceedings. Any claim not proved within the time limited may be proved at any time before the final dividend. The proof of a claim shall not affect any dividend already made, but in any subsequent dividends the claim, if allowed, shall be a preferred claim for dividends equal to those which have been previously made upon like claims.