R. PATRICK O'MALLEY vs. MARIA O'MALLEY.

WILKINS, J. When the parties (Patrick and Maria) were divorced in 1987, they entered into an agreement that was incorporated in and survived their divorce judgment in which they agreed to distribute between them a jointly-owned business property in Fall River and a restaurant business operated on that property. They agreed that the business would

Page 378

be sold, that Patrick would receive 20% of the net proceeds of the sale, and that, until the business was sold, Patrick would receive 20% of its net income. They also agreed that the real estate would be sold, that Patrick would receive a portion of the proceeds of the sale, and that, until it was sold, he would receive all the net income from the real estate.

Patrick commenced this action in 1989 to recover the net income from the real estate and 20% of the net income from the restaurant. A judge of the Probate and Family Court, sitting by designation, ruled that the real estate had generated no net income and made no award on that claim. She ruled that Patrick was entitled to $267,374, based on separate calculations of the restaurant's profits in 1987, 1988, and 1989. Judgment was entered against Maria on June 27, 1991, in the amount of $267,374. The judgment made no reference to the payment of interest, nor did the judge make any statement concerning interest in her findings of fact and conclusions of law. [Note 1] Patrick did not appeal.

The substantive issues in this appeal by Patrick from postjudgment rulings concern (a) the judge's refusal to remedy the absence from the Superior Court judgment of any allowance for prejudgment interest on the amounts awarded to Patrick as his share of the restaurant's profits and (b) the lawfulness of an order, entered in August, 1991, that allowed Maria to deposit the unpaid balance of the judgments in the two proceedings (after paying Patrick $100,000) in interest-bearing accounts. [Note 2] As to each substantive issue, however,

Page 379

there is a preliminary procedural question which, if decided against Patrick, will make our consideration of its merits unnecessary.

We transferred Patrick's appeal here on our own motion. We conclude that, in the circumstances, there is no limitation on the time within which Patrick may challenge the absence of a award of prejudgment interest in the Superior Court judgment and further conclude that he is entitled to prejudgment interest. On the matter of the lawfulness of the order permitting Maria to deposit funds in escrow, we conclude that Patrick did not seasonably claim an appeal from that order and that, therefore, the substantive issue is not properly before us for review.

1. Prejudgment interest. When, in March, 1993, he filed a motion to correct the judgment, Patrick for the first time raised an objection to the absence of an award of prejudgment interest in the June, 1991, Superior Court judgment. The trial judge denied the motion without filing any memorandum of decision, and Patrick appealed. Patrick argued below, and now argues, that Mass. R. Civ. P. 60 (a), 365 Mass. 828 (1974), provides a proper basis for filing his motion to challenge the absence of an award of prejudgment interest.

Rule 60 (a) permits the correction of clerical mistakes in judgments at any time on motion of a party. The first issue is whether, assuming that there was a mistake, that mistake was a clerical one. If it was not clerical, Patrick could seek relief only by a timely motion for relief under Mass. R. Civ. P. 60 (b), 365 Mass. 828 (1974), by a timely motion to amend the judgment under Mass. R. Civ. P. 59 (e), 365 Mass. 827 (1974), or by a timely appeal from the judgment, none of which courses Patrick pursued.

The failure to include prejudgment interest in the judgment was a clerical mistake remediable by a rule 60 (a) motion. We have generally viewed mistakes in the computation

Page 380

of interest as clerical. See Bernier v. Boston Edison Co., 380 Mass. 372, 388 n.17 (1980) (mistake concerning date of interest accrual was clerical, citing Glick v. White Motor Co., 458 F.2d 1287, 1293-1294 [3d Cir. 1972], which held omission of prejudgment interest to be correctable under Fed. R. Civ. P. 60 [a]); Trustees of the Boston & Me. Corp. v. Massachusetts Bay Transp. Auth., 367 Mass. 57 , 62-63 (1975) (clerk's erroneous addition of interest was clerical mistake); Worsnop v. Texaco, Inc., 386 Mass. 1005, 1006 (1982) (rescript opinion) (same). [Note 3]

There is no indication that the judge considered the interest question and then ruled that prejudgment interest should be denied. Her memorandum of decision is silent on the matter. She specifically focused on the question of prejudgment interest in the companion Probate Court action and, for a reason that has no connection with the grant or denial of interest in this case, expressly denied prejudgment interest in her contemporaneous memorandum of decision in the Probate Court case. See note 1 above. Moreover, in a postjudgment hearing, the judge stated that she had not considered the question of prejudgment interest in the Superior Court matter. We are satisfied that the judge did not make any implicit ruling of law denying prejudgment interest. Because Patrick was entitled to prejudgment interest as a matter of law (G. L. c. 231, Section 6C [1992 ed.]), the judgment should have included such an award. If an award of interest is a matter of right, and not discretionary, the cognate Federal Rule of Civil Procedure, rule 60 (a), may be used to correct a judgment in order to include interest. See 11 C.A. Wright & A.R. Miller, Federal Practice and Procedure Section 2854, at 152 (1973).

Page 381

Section 6C of G. L. c. 231, concerning prejudgment interest in contract actions, commands a ministerial act. [Note 4] See Sterilite Corp. v. Continental Casualty Co., 397 Mass. 837, 839 (1986). Interest in similar situations attaches automatically (see, e.g., McEvoy Travel Bureau, Inc. v. Norton Co., 408 Mass. 704, 716-717 [1990] [G. L. c. 231, Section 6B (1992 ed.)]; Osborne v. Biotti, 404 Mass. 112, 114-115, 117 [1989] [G. L. c. 235, Section 8 (1992 ed.); Mass. R. Civ. P. 54 [f], as amended, 382 Mass. 822 (1980)]), and thus, for interest to be awarded, a judge need not mention it (see Osborne, supra at 117; Salem Country Club, Inc. v. Peabody Redevelopment Auth., 21 Mass. App. Ct. 433, 438 [1986] [G. L. c. 79, Section 37 (1992 ed.)]).

Patrick is entitled to an award of prejudgment interest calculated from the end of each year (1987, 1988, 1989) in which the judge determined that Patrick was entitled to 20% of the restaurant's profits, based on the amounts determined by the judge for each year (with a credit for the amount that Maria paid for 1987 as of the date of that payment).

2. Patrick's challenge to the August, 1991, order allowing Maria to place the balance of the judgment in interest-bearing escrow accounts came too late. [Note 5] Patrick did not seasonably appeal from that order and raised the issue for the first time (after entry of the order) in June, 1992, when he unsuccessfully moved to amend or vacate it. Patrick seeks to justify the propriety of his motion to amend or vacate (and two

Page 382

subsequent unsuccessful attempts) on the ground that the escrow order was void. He relies on Mass. R. Civ. P. 60 (b) (4), 365 Mass. 828 (1974), which authorizes a judge on a motion filed within a reasonable time, to relieve a party from an order that is void. He claims that the judge lacked jurisdiction over Maria's motion and that the order was also void because its entry violated his right to due process.

The August order may or may not have been unlawful (a point that we need not decide), but it was not void. [Note 6] Jurisdiction is lacking over the subject matter for rule 60 (b) purposes only if there is a total want of jurisdiction over the case or a clear usurpation of power. See Harris v. Sannella, 400 Mass. 392, 395-396 (1987); O'Dea v. J.A.L., Inc., 30 Mass. App. Ct. 449, 455-456 & n.12 (1991). That is not the case here. The judge acted in a case over which she had jurisdiction, one in which she had made findings and rulings.

The claim that the order is void because it denied Patrick due process rights also lacks merit. Patrick had a right to challenge the order by an appeal. An unappealed and now unappealable, even if unlawful, order or judgment would not usurp a property right in violation of one's right to due process.

3. The judgment is vacated insofar as it fails to award the plaintiff prejudgment interest. The amount of prejudgment interest payable to the plaintiff shall be calculated as directed in this opinion and then awarded to the plaintiff in a new judgment. The plaintiff is entitled to postjudgment interest on the prejudgment interest awarded, from the date of the entry of the original judgment to the date of entry of judgment after rescript.

So ordered.