We granted certiorari to the Court of Appeals in Gen. Elec. Capital Computer Svcs. v. Gwinnett County Bd. of Tax Assessors, 240 Ga. App. 629 (523 SE2d 651) (1999), cases involving the freeport exemption in OCGA § 48-5-48.2 (b), 1 to address whether the doctrine of col*176lateral estoppel bars the litigation of a tax issue litigated in a prior year where there has been no significant factual change, but where there has been a change or development in the law. We conclude that collateral estoppel may not pose a bar under such circumstance; but, we affirm the decision of the Court of Appeals in these cases because there has not been such an intervening change or development in the law.
The history of this litigation is chronicled in the opinion of the Court of Appeals. In the early 1990’s, General Electric Capital Computer Services (GECC) wished to establish a Georgia warehouse facility to store testing and measuring equipment which it held for sale, lease, and rental to customers in and out of Georgia. GECC was assured its inventory would be exempt from ad valorem taxes under OCGA § 48-5-48.2, and GECC located its warehouse facility in Gwinnett County and was granted the promised freeport exemption for tax year 1992. However, in tax year 1993, the Gwinnett County Board of Tax Assessors denied GECC’s application for the freeport exemption. GECC appealed to the superior court, which, by a final order and judgment entered in June 1994, reversed the Board’s decision.2 In 1995, the Court of Appeals affirmed without opinion the superior court’s 1994 decision.3
A year later, the parties entered into a consent order to resolve disputes which arose after entry of the 1994 order. The Board of Tax Assessors agreed to refund to GECC ad valorem taxes paid in 1993 to the extent these were determined to be subject to the freeport exemption, and granted GECC’s 1994 and 1995 applications for the exemption. GECC agreed to waive its right to seek additional sums and all counterclaims were dismissed without prejudice.
The present actions arise from the Board’s denial of GECC’s applications for the freeport exemption in tax years 1996 and 1997 upon the finding that GECC’s Gwinnett County warehouse inventory *177did not qualify for the exemption because of a failure to meet the requirements of OCGA § 48-5-48.2. Before the superior court, GECC argued that the Board was precluded as a matter of law from pursuing payment of ad valorem taxes on GECC’s inventory because of the 1994 ruling. The superior court found that GECC’s inventory in question was the same type that was at issue in the court’s 1994 ruling and that none of the material facts or circumstances concerning GECC’s business had changed since the earlier decision; however, citing Apollo Travel Svcs. v. Gwinnett County Bd. of Tax Assessors, 230 Ga. App. 790 (498 SE2d 297) (1998), the superior court concluded that the inventory was not eligible for the freeport exemption.4
GECC challenged the superior court’s denial of its motions for summary judgment and its grant of the Board’s cross-motions for summary judgment regarding its applications for the freeport exemption in tax years 1996 and 1997. GECC argued to the Court of Appeals that the doctrine of collateral estoppel precluded the relitigation of the question of the eligibility of its warehouse inventory for the freeport exemption. The Court of Appeals agreed; it concluded that the superior court’s grant of summary judgment to the Board based upon Apollo constituted an impermissible relitigation of GECC’s eligibility for the freeport exemption, the issue the Board was estopped to deny by the 1994 order. The Court of Appeals explained that while it had denied the taxpayer the freeport exemption in Apollo, finding its inventory ineligible for exemption as “stock in trade” under OCGA § 48-5-48.2 (a) (4),5 the 1994 order in this instance ruled to the contrary as to at least a portion of GECC’s inventory, and that the evidence was that thereafter no change occurred in the relevant inventory. Accordingly, the Court of Appeals concluded that the superior court erred as a matter of law in granting summary judgment to the Board and denying summary judgment to GECC.6
*1781. The doctrine of collateral estoppel
precludes the re-adjudication of an issue that has previously been litigated and adjudicated on the merits in another action between the same parties or their privies. Like res judicata, collateral estoppel requires the identity of the parties or their privies in both actions. However, unlike res judicata, collateral estoppel does not require identity of the claim - so long as the issue was determined in the previous action and there is identity of the parties, that issue may not be re-litigated, even as part of a different claim.
Waldroup v. Greene County Hosp. Auth., 265 Ga. 864, 866 (2) (463 SE2d 5) (1995). See also Jebco Ventures v. City of Smyrna, 259 Ga. 599, 601 (1) (385 SE2d 397) (1989).
It is plain that collateral estoppel applies to successive years in regard to the freeport exemption for such years based upon substantially the same facts. Fulton County Tax Commr. v. Gen. Motors Corp., 234 Ga. App. 459, 465 (1) (507 SE2d 772) (1998). Compare Hawes v. Superior Pine Products Co., 225 Ga. 392 (169 SE2d 126) (1969), which involved an amendment to the contract at issue as well as an amendment to the revenue laws. And the Court of Appeals has, in the context of a dispute about the distribution of sales and use tax revenues, cursorily noted that collateral estoppel would hot be a bar when there has been an intervening and significant change in the law. Jackson v. City of College Park, 230 Ga. App. 487, 490 (1) (496 SE2d 777) (1998).
The Supreme Court of the United States has addressed the role of collateral estoppel in a tax dispute. In Commissioner of Internal Revenue v. Sunnen, 333 U. S. 591 (68 SC 715, 92 LE 898) (1948), a case involving the question of federal income tax consequences of intra-family assignments of income, the Court observed that collateral estoppel operates to relieve both the government and the taxpayer of redundant litigation of the same question of a statute’s application to the taxpayer’s status. Id. at 599. However, the Court stated that the salutary purpose of the doctrine ceased in situations of “a subsequent modification of the significant facts or a change or development in the controlling legal principles” which would render the past determination “obsolete or erroneous, at least for future purposes.” Id. The Court contemplated a situation that is “vitally altered” between the times of the first and second judgment. Id. at 600.
In the subsequent case of Montana v. United States, 440 U. S. *179147 (99 SC 970, 59 LE2d 210) (1979), involving the constitutionality of the imposition of a gross receipts tax, the Supreme Court emphasized that application of collateral estoppel along with the doctrine of res judicata was “central to the purpose for which civil courts have been established, the conclusive resolution of disputes within their jurisdictions.” Id., 99 SC at 973 (II). Thus, the Montana Court concluded that the Government’s reliance on Sunnen to void preclusion was misplaced absent “major changes” in the applicable law. Id. at 977 (III) (B). It elaborated that, “[underlying the Sunnen decision was a concern that modifications in ‘controlling legal principles,’. . . could render a previous determination inconsistent with prevailing doctrine. . . .”
Such considerations are not present in this case.
2. Both the Court of Appeals and the trial court found that there was no factual change in GECC’s inventory. And there is no dispute that there has been no change in the relevant provisions of OCGA § 48-5-48.2. Thus, the question of preclusion focuses on Apollo. Pretermitting any question of similarity of GECC’s inventory to that in Apollo, the analysis in Apollo does not reveal a change in the law regarding the freeport exemption, much less a major change or a modification of such significance so as to render prior determinations under the exemption erroneous or obsolete. The Apollo court framed the central issue in the appeal as “whether the computers that Apollo claims should be exempted from taxation, constituted inventory of finished goods within the meaning of the freeport exemption.” Apollo at 792 (4). The analysis then merely quoted the extent of the exemption as stated in OCGA § 48-5-48.2 (b) (3), and the definitions of “finished goods” and “stock in trade of a retailer” in subsections (a) (2)7 and (4) of the statute. The Court of Appeals concluded that the computers in question did not meet the definition of “inventory of finished goods” as contemplated by OCGA § 48-5-48.2 because they were not goods being held for shipment to final destinations outside Georgia for resale; instead, the computers were in the nature of Apollo’s stock-in-trade which Apollo was holding for shipment to its retail customers. Apollo at 793 (4). Thus, the Court of Appeals was merely applying the express terms of OCGA § 48-5-48.2 to the circumstances at hand and ruling on the facts of Apollo’s inventory. That Apollo signaled no change in the law regarding the freeport exemption is further borne out by the fact that in finding Apollo not *180entitled to the freeport exemption, the Court stated that it was “reading the statute according to the natural and most obvious import of its terms.” Apollo at 793 (4). See also Delta Air Lines v. Clayton County Bd. of Tax Assessors, 246 Ga. App. 225 (539 SE2d 905) (2000).8
Accordingly, the Court of Appeals did not err in applying the doctrine of collateral estoppel to find that the Gwinnett County Board of Tax Assessors was precluded from relitigating taxpayer GECC’s eligibility for the freeport exemption.9
Judgments affirmed.
All the Justices concur, except Benham, C. J, Fletcher, P. J, and Carley, J., who dissent.OCGA § 48-5-48.2 (b) provides:
The governing authority of any county or municipality may, subject to the approval of the electors of such political subdivision, exempt from ad valorem taxation, including all such taxes levied for educational purposes and for state purposes, all or any combination of the following types of tangible personal property:
(1) Inventory of goods in the process of manufacture or production which shall include all partly finished goods and raw materials held for direct use or consumption in the ordinary course of the taxpayer’s manufacturing or production business in this state. The exemption provided for in this paragraph shall apply only to tangible personal property which is substantially modified, altered, or changed in the ordinary course of the taxpayer’s manufacturing, processing, or production operations in this state. For purposes of this paragraph, the cleaning, drying, pest control treatment, or segregation by grade of grain, peanuts or other oil seeds, or cotton shall constitute substantial modification in the course of processing or production operations. For purposes of this paragraph, remanufacture of aircraft engines or aircraft engine parts or components shall constitute manufacturing operations in this state. Remanufacture of aircraft engines or aircraft engine parts or components means the substantial overhauling or rebuilding of aircraft engines or aircraft engine parts or components;
(2) Inventory of finished goods manufactured or produced within this state in the ordinary course of the taxpayer’s manufacturing or production business when held by the original manufacturer or producer of such finished goods. The exemption provided for in this paragraph shall be for a period not exceeding 12 months from the date such property is produced or manufactured; or
(3) Inventory of finished goods which, on January 1, are stored in a warehouse, dock, or wharf, whether public or private, and which are destined for shipment to a final destination outside this state and inventory of finished goods which are shipped into this state from outside this state and stored for transshipment to a final destination outside this state. The exemption provided for in this paragraph *176shall be for a period not exceeding 12 months from the date such property is stored in this state. Such period shall be determined based on application of a first-in, first-out method of accounting for the inventory. The official books and records of the warehouse, dock, or wharf where such property is being stored shall contain a full, true, and accurate inventory of all such property, including the date of the receipt of the property, the date of the withdrawal of the property, the point of origin of the property, and the point of final destination of the same, if known. The official books and records of any such warehouse, dock, or wharf, whether public or private, pertaining to any such property for which a freeport exemption has been claimed shall be at all times open to the inspection of all taxing authorities of this state and of any political subdivision of this state.
The court determined that only the portion of GECC’s inventory which was in its possession and held for sale or lease on the assessment date qualified for the freeport exemption.
Gwinnett County Bd. of Tax Assessors v. G. E. Capital Computer Svcs., 216 Ga. App. XXVIII (1995).
The Board acknowledges that before the superior court it took the position that the Apollo case and GECC’s situations were different.
OCGA § 48-5-48.2 (a) (4) provides:
“Stock in trade of a retailer” means finished goods held by one in the business of making sales of such goods at retail in this state, within the meaning of Chapter 8 of this title, when such goods are held or stored at a business location from which such retail sales are regularly made. Goods stored in a warehouse, dock, or wharf, including a warehouse or distribution center which is part of or adjoins a place of business from which retail sales are regularly made, shall not be considered stock in trade of a retailer to the extent that the taxpayer can establish, through a historical sales or shipment analysis, either of which utilizes information from the preceding calendar year, or other reasonable, documented method, the portion or percentage of such goods which is reasonably anticipated to be shipped outside this state for resale purposes.
Because the 1994 order found only a portion of GECC’s inventory eligible, the Court of Appeals reversed and remanded the cases for consideration of the sufficiency of GECC’s *178showings in support of its applications for exemption.
OCGA § 48-5-48.2 (a) (2) states:
“Finished, goods” shall mean goods, wares, and merchandise of every character and kind but shall not include unrecovered, unextracted, or unsevered nátural resources or raw materials or goods in the process of manufacture or production or the stock in trade of a retailer.
This most recent case from the Court of Appeals cites Apollo for the following propositions: “In construing a legislative act, a court must first look to the literal meaning of the act. If the language is plain and does not lead to any absurd or impractical consequences, the court simply construes it according to its terms and conducts no further inquiry. . . .” Delta Air Lines v. Clayton County Bd. of Tax Assessors, supra at 229.
Of course, such determination is limited to the portion of GECC’s inventory found exempt under the 1994 order.