This tax dispute is before this Court for a second time. In an earlier appeal, this Court ruled that an S corporation was a corporation for purposes of former MCL 208.3(3) and, as such, plaintiff was not entitled to claim a “casual transaction” exclusion under former MCL 208.3(2) and former MCL 208.4(1) of the now repealed Single Business Tax Act (SBTA). TMW Enterprises Inc v Dep’t of Treasury, 285 Mich App 167; 775 NW2d 342 (2009). This Court remanded “for further proceedings consistent with this opinion.” Id. at 180.

The facts of the underlying transaction were fully discussed in the earlier opinion and need not be repeated here. The tax liability at issue arises from the sale of assets by plaintiff to a competitor in 1995, giving rise to realizing a gain of $237,059,325. Plaintiff had excluded the gain from its single business tax return for *592that year, taking the position that it was entitled to the casual-transaction exclusion under the SBTA. Defendant disagreed, assessing over $1,000,000 in taxes, penalties, and interest. Plaintiff paid the assessment under protest and brought an action in the Court of Claims seeking a refund. Although plaintiff prevailed in the Court of Claims, defendant prevailed on appeal.

On remand, the Court of Claims determined that plaintiff was entitled to a refund of most of the amount paid. Specifically, the Court of Claims concluded that only that portion of the gain that represented built-in gains or excess passive income, $589,879 of plaintiffs gain from the 1995 transaction, was subject to tax. Defendant appeals that decision.

Defendant first argues that it was improper for the issue of the calculation of plaintiffs tax liability to be revisited on remand. We disagree. Defendant argues that the trial court on remand only had the authority to take action consistent with our prior opinion. This is correct, though it would be more accurate to phrase the principle in the affirmative of what the trial court can do on remand. On remand, “the trial court possesses the authority to take any action which is not inconsistent with the opinion of the appellate court.” Vander-Wall v Midkiff, 186 Mich App 191, 196; 463 NW2d 219 (1990). At no point in this Court’s prior opinion was the amount of plaintiffs taxable income determined nor the amount of tax owed established. Rather, the only thing that this Court concluded in the prior opinion was that S corporations are corporations for SBTA purposes and, as such, are not entitled to claim the casual-transaction exclusion. TMW, 285 Mich App at 179.1 The trial court *593was required to follow that principle of law on remand. City of Kalamazoo v Dep’t of Corrections (After Remand), 229 Mich App 132, 135; 580 NW2d 475 (1998). But as long as it did so, the trial court had the authority to take any action necessary on remand as long as that action was consistent with our prior opinion.

Indeed, arguably not only was the trial court free to revisit the calculation issue, but it was obligated to do so inasmuch as this Court had vacated the trial court’s original decision. TMW, 285 Mich App at 179 n 8. With the trial court’s original decision vacated, it was necessary for it to enter a new decision. And the only thing our prior decision obligated the trial court to do was to treat plaintiff like any other corporation for purposes of calculating its obligations under the SBTA, which the trial court did.

In sum, in our prior opinion, this Court did not determine the amount of tax owed by plaintiff nor the amount of plaintiffs taxable income. Moreover, nothing in our earlier opinion limited the scope of remand other than the traditional language that the proceedings on remand had to be consistent with our opinion.

There is one final argument raised by defendant on this point that we should address, and which leads into the second issue on appeal: what is the proper calculation of plaintiffs federal taxable income on which the single business tax (SBT) could be levied. Defendant argues that the issue of the amount of plaintiffs federal taxable income was determined in the prior appeal because it was necessary to do so in order to reject plaintiffs argument in the prior appeal. As defendant correctly points out, this Court did state that whether S corporations have federal *594taxable income is irrelevant because, regardless how that number is calculated, it is the basis for calculating the S corporation’s business income, and the corporation is not entitled to the casual-transaction exclusion. TMW, 285 Mich App at 178. But defendant seems to overlook the Court’s statement on the same page that “[i]t is true that S corporations have no federal taxable income at the federal level, as the parties concede.” Id.2 This statement does control the outcome, but not in defendant’s favor.

The SBTA imposed a tax on a taxpayer’s adjusted tax base. TMW, 285 Mich App at 173-174. “Tax base” was defined to mean “business income, before apportionment or allocation as provided in chapter 3, even if zero or negative, subject to the adjustments in this section.” Former MCL 208.9(1). See also TMW, 285 Mich App at 174. And, for corporations, “business income” was defined as federal taxable income. Former MCL 208.3(3). See also TMW, 285 Mich App at 174. “Thus, if a person is a corporation, its business income is its federal taxable income, which in turn is also its tax base.” TMW, 285 Mich App at 174.

The analysis thus becomes very simple. Plaintiff, as an S corporation, had no federal taxable income, except for its built-in gains and excess passive income. Therefore, only the amount of those built-in gains and excess passive income would constitute business income under the SBTA. And, thus, it only owed SBT on that amount, as the trial court concluded.

Finally, we briefly address defendant’s argument that this Court previously found that plaintiff did, in fact, have business income subject to tax. We did not. Defen*595dant’s argument misrepresents the analysis of this Court in its prior opinion. Defendant quotes from our opinion, which noted that, in “the court’s view, to read § 3(3) to mean that S corporations calculate their ‘business income’ on the basis of federal taxable income would result in S corporations avoiding all SBT liability.” Id. at 171. Defendant then argues that by rejecting the trial court’s conclusion that an S corporation is not a corporation for purposes of determining business income, this Court must have rejected the trial court’s determination that S corporations have no tax liability. Defendant’s argument is flawed because this Court never rejected the trial court’s conclusion that S corporations have no tax liability because the trial court did not make such a determination in its original decision. Rather, the trial court’s original opinion recognized that which defendant apparently did not: if S corporations are treated like any other corporation, rather than like a partnership, S corporations escape the SBT because they have no federal taxable income on which to calculate the SBT. For this reason, the trial court found it “nonsensical” to treat S corporations like other corporations and, therefore, concluded that they must be treated like partnerships so that, in general, they would be subject to the SBT (though plaintiff would potentially escape it in this case because it would then be allowed to claim the casual-transaction exclusion). What this Court rejected in our earlier opinion was the trial court’s conclusion that S corporations must be treated like partnerships in order to prevent them from escaping the SBT. Rather, this Court concluded that S corporations are corporations and their SBT must be calculated as such, without regard to whether that results in no tax liability. TMW, 285 Mich App at 177-178.

*596Defendant would like to have it both ways. In the earlier appeal, defendant wanted plaintiff to be treated like any other corporation so that it could not claim the casual-transaction exclusion. In this appeal, defendant wants plaintiff to not be treated like any other corporation because that would result in it having virtually no taxable income on which to levy the SBT. But as this Court made clear in its earlier opinion, plaintiff must be treated like any other corporation. And that means that the trial court correctly concluded that the SBT could only be levied on its federal taxable income, which includes only a small amount of built-in gains and excess passive income.

Affirmed. Plaintiff may tax costs.