
175 P.3d 601 (2008)
Laura HOLDEN, Respondent,
v.
FARMERS INSURANCE COMPANY OF WASHINGTON, a domestic insurer; Farmers Insurance Group, a foreign insurer, Farmers Insurance Exchange, a foreign insurer; and all affiliated Farmers Insurance Companies and/or entities, Petitioners.
No. 59024-3-I.
Court of Appeals of Washington, Division 1.
January 22, 2008.
*602 Bradley Jerome Moore, Stritmatter Kessler Whelan Coluccio, Seattle, WA, Garth L. Jones, Stritmatter Kessler Whelan Coluccio, Hoquiam, WA, for Respondent.
Danielle S. Fitzpatrick, Rogelio Omar Riojas, DLA Piper U.S. LLP, Seattle, WA, Jeffrey A. Rosenfeld, DLA Piper U.S. LLP, Los Angeles, CA, for Petitioners.
APPELWICK C.J.
¶ 1 This case presents a single question of law  does "actual cash value," defined as fair market value, include sales tax on all amounts claimed under a homeowner's insurance policy. The trial court determined that actual cash value includes sales tax and granted summary judgment in favor of Holden. Because an actual cash value clause acts only to indemnify the insured, we reverse and remand for entry of summary judgment for Farmers Insurance Company of Washington.

FACTS
¶ 2 Laura Holden had a homeowner's insurance policy through Farmer's Insurance Company of Washington under a broad form renter's package policy. The policy stated that "covered loss to property will be settled at actual cash value." The policy defined actual cash value (ACV) as "fair market value of the property at the time of the loss." The policy does not include a definition of fair market value (FMV). Farmers uses a variety of means to determine FMV including, surveying online markets, hiring an appraiser, agreeing with the insured on the value, and depreciating the cost of a new item to reflect age, obsolescence and wear and tear. Holden's policy also included coverage for the replacement cost of property lost. The policy defines replacement cost as "the cost, at the time of loss, of a new article identical to the one damaged, destroyed or stolen."
¶ 3 Holden filed a claim with Farmers on this policy for property loss relating to a fire under the ACV provision. Holden never made a claim under the replacement coverage. Farmers reimbursed her for the ACV of the property, which had not been replaced. The reimbursement did not include an allowance for sales tax. Holden requested that her ACV payment include Washington sales tax. Farmers sent her two letters advising her that she could claim replacement cost, including sales tax, if she submitted receipts reflecting the cost of replacement. Holden sent at least three letters to Ethel Smith of the Washington State Insurance Commissioner's Office, complaining that Farmers was not paying the sales tax applicable to her loss. The insurance commissioner took no action except to forward the letter to Farmers requesting a response. Farmers responded, stating that Holden could not receive allowance for sales tax unless and until she incurred the tax.
¶ 4 After receiving these responses from Farmers and the insurance commissioner, Holden filed a putative class action claim against Farmers. Holden and Farmers both filed motions for summary judgment. After a hearing, the trial court determined that Farmers' definition of ACV was ambiguous as a matter of law because FMV is capable of multiple interpretations. The trial court construed the provision against Farmers, as drafters of the policy, and interpreted the provision to include sales tax. The trial court granted summary judgment in favor of Holden. Farmers filed for discretionary review.

DISCUSSION
¶ 5 When reviewing a summary judgment order, the appellate court undertakes the same inquiry as the trial court. Thompson v. Peninsula Sch. Dist. No. 401, 77 Wash. App. 500, 504, 892 P.2d 760 (1995). Summary judgment is proper when there are no genuine issues of material fact and the moving party is entitled to a judgment as a matter of law. CR 56(c). The moving party bears this burden of proof. Young v. Key *603 Pharm. Inc., 112 Wash.2d 216, 225, 770 P.2d 182 (1989). All facts and inferences are considered in the light most favorable to the non-moving party. Ashcraft v. Wallingford, 17 Wash.App. 853, 565 P.2d 1224 (1977).
¶ 6 Interpretation of an insurance policy is a matter of law. Kent Farms, Inc. v. Zurich Ins. Co., 140 Wash.2d 396, 399, 998 P.2d 292 (2000). "The policy is construed as a whole, and `should be given a fair, reasonable, and sensible construction as would be given to the contract by the average person purchasing insurance.'" Grange Ins. Co. v. Brosseau, 113 Wash.2d 91, 95, 776 P.2d 123 (1989) (quoting Sears v. Grange Ins. Ass'n, 111 Wash.2d 636, 638, 762 P.2d 1141 (1988)). If an insurance policy defines a term, the term is interpreted in accordance with that definition. Kitsap County v. Allstate Ins. Co., 136 Wash.2d 567, 576, 964 P.2d 1173 (1998). And, the trial court must enforce the policy as written if the language is clear and unambiguous. Transcon. Ins. Co. v. Wash. Pub. Util. Dist's Util. Sys., 111 Wash.2d 452, 456, 760 P.2d 337 (1988). "A clause in a policy is ambiguous when, on its face, it is fairly susceptible to two different interpretations, both of which are reasonable." Greer v. Northwestern Nat'l Ins. Co., 109 Wash.2d 191, 198, 743 P.2d 1244 (1987) (quoting Vadheim v. Continental Ins. Co., 107 Wash.2d 836, 840-41, 734 P.2d 17 (1987)). Ambiguity is construed in favor of the insured. Vadheim, 107 Wash.2d at 840-41, 734 P.2d 17.
¶ 7 Holden argues that Farmers' various methods of valuing FMV demonstrate ambiguity in the meaning of FMV, particularly as to whether sales tax is covered, and that any ambiguity should be construed against Farmers. Resolution of this ambiguity in favor of Holden would result in payment of sales tax for ACV under all calculations of FMV. Holden claims that Farmers admits that it pays sales tax when using replacement cost less depreciation to calculate FMV. Farmers acknowledges that it pays sales tax as part of the replacement cost minus depreciation method of calculating FMV, but only when the insured has a policy containing ACV coverage (no replacement provision) and actually replaces the lost property subsequent to the loss. Farmer's notes this is distinct from Holden's claim because she both has a replacement clause in her policy and failed to replace her property.
¶ 8 Nonetheless, Farmers contends that the Washington Supreme Court's decision in National Fire Ins. Co. v. Solomon, 96 Wash.2d 763, 770, 638 P.2d 1259 (1982), provides a definition for ACV and FMV that precludes the use of replacement cost less depreciation. In Solomon, the issue on appeal concerned whether the policy required actual replacement in order to recover under the replacement cost policy. Id. at 765, 638 P.2d 1259. The Supreme Court held that the replacement cost clause did not require rebuilding as a condition precedent to reimbursement. Id. at 770, 638 P.2d 1259 (citing Reese v. Northern Ins. Co. of N.Y., 207 Pa.Super. 19, 215 A.2d 266, 269 (1965)). As an additional holding, the court defined ACV. "`[A]ctual cash value' within statutory language of [a] fire policy is synonymous with `fair market value' and does not mean replacement cost less depreciation." Solomon, 96 Wash.2d at 770, 638 P.2d 1259 (citing Jefferson Ins. Co. of N.Y. v. Superior Court of Alameda County, 3 Cal.3d 398, 90 Cal. Rptr. 608, 475 P.2d 880, 882 (1970)). Holden claims that Hess v. North Pacific Insurance Co., 122 Wash.2d 180, 859 P.2d 586 (1993), overruled Solomon. Hess stated that "[t]he facts in [Solomon], 96 Wash.2d 763 [638 P.2d 1259] . . . mandate limiting whatever its holdings may be to those facts and the policy involved." Hess, 122 Wash.2d at 191, 859 P.2d 586. The trial court agreed with Holden, concluding that Hess significantly limited or sub silentio overruled the holding in Solomon.[1]
¶ 9 Whether the trial court was correct about Hess is of no consequence. Neither Hess nor Solomon controls here. At issue in both cases was the interpretation of replacement coverage language; ACV was not at issue and commentary on ACV is dicta in *604 both cases. The Hess court specifically rejected Solomon's treatment of the replacement clause analysis. The opinion also sharply criticized Solomon's discussion of ACV. "Relying on a California statute, the court held that actual cash value meant fair market value without depreciation. Another state's statutory definition should not control our interpretation." Hess 122 Wash.2d at 191, 859 P.2d 586. As in Solomon, the treatment of ACV in Hess was unnecessary to the resolution of the issue on appeal in Hess. "Statements in a case that do not relate to an issue before the court and are unnecessary to decide the case constitute obiter dictum, and need not be followed." Ass'n of Wash. Bus. v. Dep't of Revenue, 155 Wash.2d 430, 442 n. 11, 120 P.3d 46 (2005). Either the ACV definition in Solomon has been rejected by Hess, or both discussions are to be disregarded as dicta. Neither case resolves the ambiguity Holden alleges in the meaning of ACV.
¶ 10 Holden asserts that FMV is ambiguous and all calculations of FMV must include sales tax because at least one method of valuing FMV  replacement value less depreciation  can include sales tax, though others do not. The assumption that sales tax is payable under any means of determining FMV under ACV coverage merely begs the question. ACV coverage only indemnifies the insured, "replacement cost considerations . . . do not, therefore, apply. Replacement value applies only if actual replacement is undertaken." DePhelps v. Safeco Ins. Co. of Am., 116 Wash.App. 441, 452-53, 65 P.3d 1234 (2003) (citing Hess, 122 Wash.2d at 187, 859 P.2d 586). An ACV policy "does not entitle the insured to any more than indemnity for the actual loss sustained so as to place him or her in the same financial condition as he or she would have been in if there had been no fire." 12 Lee R. Russ & Thomas F. Segalla, Couch on Insurance, 3d. § 175:5 (2005).
¶ 11 The contract language must be viewed through the lens of indemnification. Viewed through this lens, sales tax is reimbursable only when incurred by the insured. The use of replacement value in calculating FMV under ACV coverage does not include sales tax if the item is not replaced, but does include sales tax if the tax is incurred. This differential treatment is not ambiguous; it is a consistent application of the principles of indemnification.
¶ 12 Either the legislature or the insurance commissioner could have required ACV coverage to include sales tax on the value of the loss, but neither has undertaken this task. The exclusion of sales tax from reimbursement under the ACV clause, absent replacement, fits with the indemnification purpose of an ACV provision and the interpretation of Holden's policy as a whole. Holden's insurance policy contained a separate replacement provision, which she paid an extra premium to maintain. Holden elected not to replace the items and not to use the replacement coverage; she chose to utilize her ACV coverage. ACV is an indemnity clause. "Like loss of use, actual cash value clauses provide indemnity only." DePhelps, 116 Wash.App. at 452, 65 P.3d 1234 (citing Hess, 122 Wash.2d at 182-83, 859 P.2d 586). This indemnity does not include sales tax not incurred.
¶ 13 We reverse and remand for entry of summary judgment for Farmers Insurance Company of Washington.
WE CONCUR: DWYER and ELLINGTON, JJ.
NOTES
[1]  The Washington Supreme Court does not overrule binding precedent sub silentio. See, State v. Studd, 137 Wash.2d 533, 548, 973 P.2d 1049 (1999); Lunsford v. Saberhagen Holdings, Inc., 139 Wash.App. 334, 345, 160 P.3d 1089 (2007).
