delivered the opinion of the Court.
This case presents the following issues: (1) whether uninsured/underin-sured motorist (UIM) insurance covers prejudgment interest that the underin-sured motorist would owe the insured in tort liability; (2) if so, how to apply settlement and personal injury protection (PIP) credits to the interest calculation; and (3) the circumstances under which an insured may recover attorney’s fees from the UIM insurer under Chapter 38 of the Civil Practice and Remedies Code. We hold that: (1) UIM insurance covers this prejudgment interest; (2) under the “declining principal” formula, each credit is applied according to the date on which it was received; and (3) the insured may recover attorney’s fees under Chapter 38 only if the insurer does not tender UIM benefits within thirty days after the trial court signs a judgment establishing the liability and underin-sured status of the other motorist. We reverse the court of appeals’ judgment in part, affirm in part, and remand this case to the trial court to calculate prejudgment interest consistent with this opinion.
I
Background
On July 1, 1999, Edward H. Brainard II was killed when his vehicle was involved in a head-on collision with a rig owned by Premier Well Service, Inc. His widow, Lilith Brainard, and their five children (collectively, Brainard) brought a wrongful death action against Premier and sought UIM benefits from Trinity Universal Insurance Company under a policy issued to the family business, Brainard Cattle Company. Trinity paid Brainard $5,000 under the policy’s PIP provision but requested further information supporting the UIM claim. Brainard alleges she submitted the information and performed all conditions precedent to receiving the benefits, but Trinity never paid. Eventually, Brainard joined Trinity as a defendant, alleging breach of contract, breach of the common law duty of good faith, violations of the Deceptive Trade Practices-Consumer Protection Act, and violations of Insurance Code articles 21.21 and 21.55.
On December 7, 2000, Brainard and Premier settled Brainai’d’s claims for $1,000,000, Premier’s policy limit, and Premier was subsequently dismissed from the suit. When Brainard demanded that Trinity also tender the $1,000,000 UIM policy limit, Trinity countered with an offer of $50,000. The trial court severed Brai-nard’s extra-contractual claims, which remain pending, and the parties proceeded to trial on the UIM contract. A jury found that Premier’s negligence caused the accident and awarded Brainard $1,010,000 for pecuniary loss, funeral expenses, loss of companionship and society, and mental anguish. The jury also awarded $100,000 for attorney’s fees.
*812
The trial court applied a $1,005,000 credit for Brainard’s settlement and PIP benefits, and signed a judgment against Trinity for the remaining $5,000 in damages plus $100,000 in attorney’s fees. On appeal, Trinity challenged the attorney’s fees award, and Brainard, by cross appeal, alleged the trial court erred in refusing to award prejudgment interest on the $1,010,000 in actual damages. The court of appeals reversed that portion of the trial court’s judgment awarding attorney’s fees and affirmed the denial of prejudgment interest.
II
Recovery of Prejudgment Interest
The Insurance Code requires insurers to offer Texas motorists UIM coverage and mandates that such coverage:
provide for payment to the insured of all sums which he shall be legally entitled to recover as damages from owners or operators of underinsured motor vehicles because of bodily injury or property damage in an amount up to the limit specified in the policy, reduced by the amount recovered or recoverable from the insurer of the underinsured motor vehicle.
Tex. Ins.Code art. 5.06-1(5). A motorist is underinsured if his or her liability insurance is insufficient to pay for the injured party’s actual damages.
Stracener v. United Servs. Auto. Ass’n, 777
S.W.2d 378, 380 (Tex.1989). Because the jury valued Brainard’s damages at $1,010,000, and Premier’s liability policy limit was $1,000,000, Premier was underinsured. The trial court correctly applied the sum of Premier’s $1,000,000 liability limit and Brainard’s $5,000 PIP recovery as an offset to actual damages.
Mid-Century Ins. Co. of Tex. v. Kidd,
Prejudgment interest is awarded to fully compensate the injured party, not to punish the defendant.
Cavnar v. Quality Control Parking, Inc.,
In language closely tracking article 5.06-1(5), Brainard’s policy states that Trinity will pay “damages which [Brai-nard] is legally entitled to recover from” Premier. We have consistently viewed prejudgment interest as falling within the common law meaning of damages, and Trinity does not argue that the Legislature
*813
or the parties intended the term to convey a narrower meaning. Tex. Ins.Code art. 5.06-1(5);
see, e.g., Horizon/CMS Healthcare Corp. v. Auld,
Trinity’s primary argument to the contrary, upon which the court of appeals relied, emphasizes that the UIM policy, like article 5.06-1(5), requires Trinity to pay only those damages which the insured is legally entitled to recover “because of bodily injury or property damage.”
Trinity’s argument fails for several reasons. First, although several courts of appeals have held that UIM insurance does not cover punitive damages assessed against the underinsured motorist, none reached this result by adopting Trinity’s narrow interpretation of damages “because of bodily injury.” In fact, their reasoning effectively supports UIM coverage for prejudgment interest. In
Shaffer,
the court concluded that the phrase “because of bodily injury” was ambiguous because it could mean that the damages must (a) literally derive from a bodily injury or (b) arise as a result of bodily injury.
Shaffer,
We have already noted that prejudgment interest serves to compensate the injured party, not to punish the defendant.
Johnson & Higgins,
Moreover, Trinity’s rigid reading proves too much, for it would entail splitting hairs even among purely compensatory damages, such as those for mental anguish and loss of society. Article 5.06-1(5) states that the insurer will pay the insured “all sums which he shall be legally entitled to recover as damages from owners or operators of underinsured motor vehicles because of bodily injury or property damage.” Tex. Ins.Code. art. 5.06-1(5). The qualification “because of bodily injury or property damage” merely underscores that UIM insurance is compensatory. In addition, it clarifies what should be obvious— that only injuries and damages caused by the motor vehicle accident are covered— because if the qualification is omitted, the policy would not exclude damages arising from unrelated incidents and transactions between the parties. In sum, while it is true that prejudgment interest accrues over time because of lost use of money, it is equally accurate to say that it constitutes additional compensatory damages for the insured’s bodily injury and property damage.
Trinity’s alternative argument against coverage for prejudgment interest is based on the contractual aspect of a UIM claim.
Franco v. Allstate Ins. Co.,
The reference to
Henson
deserves further discussion because our reasoning in that case clarifies the issues presented here. Henson was a passenger in a truck driven by Millican, which collided with a vehicle driven by Contreras.
Henson,
The issue in Henson was whether prejudgment interest accrued on the insured’s contractual claim for UIM benefits. The prejudgment interest which Henson could recover from Contreras in tort liability was not at issue, as the damages assessed by the jury already exceeded the UIM policy limit. We examined the insurer’s obligation to pay damages which the insured is “legally entitled to recover” from the un-derinsured motorist and concluded that there is no contractual duty to pay benefits until the liability of the other motorist and the amount of damages suffered by the insured are determined. Id. at 653-64. Thus, we held that a UIM claim does not earn prejudgment interest until the insurer breaches the contract by withholding benefits after the insured has obtained a judgment establishing the liability and un-derinsured status of the other motorist. Id. at 654. The jury could have found that Contreras was not negligent or that Henson’s damages did not exceed Contreras’s liability insurance limit, precluding any recovery of UIM benefits. Id. Because the insurers tendered the benefits promptly after the jury made its findings, no contractual duty was breached, and Henson was not entitled to receive the benefits earlier than he did. Id. The question we answer today — whether UIM insurance covers the prejudgment interest an under-insured motorist would owe the insured— was not before us in Henson.
Under section 304.102, Premier would be liable for prejudgment interest on $1,010,000. Tex. Fin.Code § 304.102. The fact that Brainard’s suit against Trinity is based on contract in no way renders the statute inapplicable. On the contrary, the UIM policy effectively incorporates the statute by requiring Trinity to pay damages which Brainard is “legally entitled to recover” from Premier. Section 304.102, like the law of negligence, is necessary to determine the liability of the underinsured motorist. The UIM policy, however, controls Trinity’s obligations. Because Brai-nard obtained a judgment establishing the negligence and underinsured status of Premier, the contract requires Trinity to pay benefits.
Henson,
Accordingly, we hold that UIM insurance covers prejudgment interest that the underinsured motorist would owe the insured. The court of appeals erred in affirming the trial court’s judgment denying Brainard this recovery.
Ill
Calculation of Prejudgment Interest
The parties do not challenge the calculation of actual damages; they agree that the trial court properly deducted Brai-nard’s $1,000,000 settlement and $5,000 PIP recovery from the jury’s $1,010,000 verdict, resulting in Trinity’s liability for $5,000.
Mid-Century Ins. Co.,
Brainard’s suit against Premier was for wrongful death. In a wrongful death case, prejudgment interest accrues beginning on the 180th day after the defendant receives *816 written notice of the claim or the day suit is filed, whichever occurs first, and ending on the day preceding the date judgment is rendered. Tex. Fin.Code § 304.104. In this ease, the prejudgment interest period commenced on January 19, 2000, when Brainard filed suit against Premier. Because the trial court signed its judgment on January 15, 2003, the period ended on January 14. Id. Prejudgment interest is computed as simple interest with a rate equal to the postjudgment interest rate applicable at the time judgment is rendered. Id. §§ 304.103, 304.104. The trial court’s judgment set the rate at ten percent.
Brainard contends that prejudgment interest is calculated on the entire $1,010,000 before applying credits. Accordingly, she seeks $263,430 in prejudgment interest— ten percent interest on $1,010,000 from January 19, 2000, until August 29, 2002, the date the parties moved to enter judgment. 1 In Brainard’s view, the interest is added to the jury’s verdict before deducting settlement and PIP credits, so that the credits do not affect the prejudgment interest calculation. Trinity objects, arguing that Brainard should not continue to earn interest on $1,010,000 in damages despite having already received $1,005,000 in compensation. We agree.
We recently touched on this issue in
Battaglia v. Alexander,
In Battaglia, we concluded that “[a] settlement payment should be credited first to accrued prejudgment interest as of the date the settlement payment was made, then to ‘principal,’ thereby reducing or perhaps eliminating prejudgment interest from that point in time forward.” Id. at 908. Thus, as we explain below, each credit applies first to the accrued interest and then to the principal, with each credit establishing a new interval. At each new interval, interest continues to accrue only on the remaining principal because under the general prejudgment interest provisions, “interest is computed as simple interest and does not compound.” Tex. Fin. Code § 304.104.
Under the “declining principal” formula, the trial court is to consider the date on which the insured received each payment. Trinity paid Brainard $5,000 in PIP benefits shortly after the July 1, 1999 collision. Because there is no dispute that *817 this payment was made sometime in July, well before the prejudgment interest period commenced, we may assume it was July 31. Brainard settled with Premier for $1,000,000 — its liability insurance limit — on December 7, 2000. On March 9, 2001, Trinity offered to settle with Brainard for $50,000. See TEX. FIN. CODE § 304.106. Two weeks later, in a letter to Brainard’s counsel, Trinity confirmed that the offer would remain open. Because Brainard’s $5,000 recovery did not exceed Trinity’s settlement offer, prejudgment interest did not accrue on the judgment after March 9, 2001. Id. § 304.105(a) (“If judgment for a claimant is equal to or less than the amount of a settlement offer of the defendant, prejudgment interest does not accrue on the amount of the judgment during the period that the offer may be accepted.”). Following are the relevant dates:
A. 07/31/1999 Brainard receives $5,000 PIP payment
B. 01/19/2000 Prejudgment interest period begins when Brainard files suit
C. 12/07/2000 Brainard receives $1,000,000 settlement
D. 03/09/2001 Trinity offers Brainard $50,000
Brainard is entitled to recover prejudgment interest on the damages caused by Premier’s negligence. The beginning principal is $1,010,000 — the amount of damages determined by the jury. The $5,000 PIP credit reduced the principal before prejudgment interest began to accrue. Thus, during the period from B to C, interest accrued on $1,005,000. At point C, the $1,000,000 credit is applied first to accrued prejudgment interest and then to principal. During the period from C to D, interest accrued on the principal remaining after application of the $1,000,000 credit. At point D, Brainard could have accepted Trinity’s settlement offer, and interest ceased to accrue on that date. Trinity is hable for the remaining sum, up to Brai-nard’s UIM policy limit, of the uncredited principal plus the uncredited interest that accrued from point C to point D. Tex. Ins.Code art. 5.06-1(5).
We remand this case to the trial court to modify the judgment in accordance with this opinion.
IV
Attorney’s Fees
The final issue is whether Brainard may recover attorney’s fees on her contract claim. The court of appeals reversed that portion of the trial court’s judgment awarding Brainard $100,000 in attorney’s fees.
Attorney’s fees are recoverable from an opposing party only as authorized by statute or by contract between the parties.
Travelers Indem. Co. v. Mayfield,
Under section 38.002, Brainard must show that: (1) she was represented by counsel; (2) she presented the claim to Trinity; and (3) Trinity failed to pay the just amount owed within thirty days of presentment. Tex. Civ. PRAG. & Rem.Code § 38.002. Brainard contends that her suit is like any other breach of contract suit, and therefore, presentment occurred on February 15, 2000, the day she made a claim for UIM benefits. Three courts of appeals support her position.
See Norris v. State Farm,
This issue turns on the language in Chapter 38 requiring that “payment for the just amount owed must not have been tendered before the expiration of the 30th day after the claim is presented.” TEX. CIV. PRAC. & REM. CODE § 38.002(3). The purpose of presentment is to allow the opposing party a reasonable opportunity to pay a claim without incurring an obligation for attorney’s fees.
Jones v. Kelley,
Of course, the insured is not required to obtain a judgment against the tortfeasor.
State Farm Mut. Auto. Ins. Co. v. Matlock,
*819 Because the contract did not require Trinity to pay UIM benefits before Premier’s negligence and underinsured status were determined, Brainard did not present a contract claim before the trial court rendered its judgment, and the court of appeals correctly concluded that Brainard is not entitled to recover attorney’s fees under Chapter 88.
y
Conclusion
We reverse the portion of the court of appeals’ judgment that denied Brainard prejudgment interest, affirm the portion that denied attorney’s fees, and remand this case to the trial court to calculate prejudgment interest consistent with this opinion. Tex.R.App. P. 60.2(a), (d).
Notes
. As explained above, however, the relevant date is that of the trial court’s judgment, rather than when the parties moved for entry of judgment.
