
661 F.Supp.2d 405 (2009)
Michael ERDHEIM, Plaintiff,
v.
COMMISSIONER of INTERNAL REVENUE, Defendant.
No. 07 Civ. 8415.
United States District Court, S.D. New York.
September 3, 2009.
*406 Mr. Michael Erdheim, New York, NY, pro se.
Preet Bharara, United States Attorney for the Southern District of New York, by Li Yu, Esq., New York, NY, for Defendant.

OPINION
SWEET, District Judge.
The defendant, the Commissioner of Internal Revenue (the "Defendant" or the "IRS") has moved under Rules 12(b)(1) and 12(b)(6), Fed.R.Civ.P., to dismiss the first and third causes of action alleged in the complaint of the plaintiff, Michael Erdheim, pro se (the "Plaintiff" or "Erdheim"). Based upon the conclusions set forth below, the IRS's motion is granted and the first and third causes of action are dismissed with prejudice.
The difficult and complicated relationship between the IRS and Erdheim is set forth in the complaint, the affidavit of Erdheim and the affidavit of Robert Baxter, Associate Area Counsel in the New York office of the Office of Chief Counsel of the IRS. The facts thus set forth are undisputed and reveal failures to comply with the requirements of the Internal Revenue Code by both parties. Notwithstanding, for the reasons advanced by the IRS, the requested dismissal is appropriate.

I. PRIOR PROCEEDINGS
Erdheim filed his pro se complaint on September 28, 2007. After extensions granted to move or answer, the instant motion to dismiss was marked fully submitted on March 25, 2009.

II. FACTS
The complaint and the affidavits establish the facts and background of the dispute between the parties.
On October 20, 1987, Erdheim and his then-spouse (the "Erdheims") filed a joint federal income tax return for the year 1986, reporting $413,078.00 in adjusted gross income but claiming that they only owed $3,138.00 in federal income tax. They paid $3,138.00 along with filing their 1986 joint income tax return. The IRS subsequently conducted an examination of that 1986 joint income tax return and determined that the Erdheims in fact owed additional taxes. On February 28, 1996, the IRS made assessments against Erdheim for his 1986 income tax liabilities in the amounts of $161,730.00 in additional taxes due, $250,783.63 in accrued interest, and $148,833.21 in penalties.
On July 13, 1992, the Erdheims filed a joint federal income tax return for the year 1990 reporting $8,219.00 in adjusted gross income. According to the joint tax return, they owed $2,510.00 in 1990 federal income tax. The Erdheims paid $2,276.00 along with filing that tax return, and on August 10, 1992, the IRS made assessments for the Erdheims' 1990 income tax liabilities in the amount of $300.15 in accrued interest and $781.50 in penalties.
On June 16, 1993, Erdheim reported $137,461.00 in adjusted gross income in a tax return filed for the year 1991. According to his tax return, Erdheim owed $10,247.00 in income tax for 1991. He did not pay that amount. On July 12, 1993, the IRS completed its processing of his 1991 income tax return and made assessments against Erdheim for his 1991 income tax liabilities in the following *407 amounts: $10,247.00 in taxes due, $1,132.64 in accrued interest, and $3,210.18 in penalties.
For the quarter ending June 30, 1991, Erdheim reported $8,169.64 in payroll withholding tax liability in a tax return filed on or about October 3, 1991. Plaintiff paid only $2,000 with his late-filed tax return. On July 31, November 11, and December 16, 1991, the IRS made assessments against Erdheim in the following amounts: $6,169.64 in additional taxes due, $243.87 in accrued interest, and $2,381.73 in penalties.
For the quarter ending September 30, 1991, Erdheim reported $8,169.65 in payroll withholding tax liability in a tax return filed on or about January 5, 1992. He did not pay any payroll taxes to the IRS for that period. On October 31, 1991, and March 16 and April 20, 1992, the IRS made assessments against Erdheim in the following amounts: $8,169.65 in taxes due, $334.09 in accrued interest, and $2,532.60 in penalties.
For the quarter ending December 31, 1991, Erdheim reported $7,313.67 in payroll withholding tax liability in a tax return filed on January 31, 1992. He did not pay any payroll taxes to the IRS for that period. On March 23 and April 27, 1992, the IRS made assessments against Erdheim in the following amounts: $7,313.67 in taxes due, $94.11 in accrued interest, and $1,170.19 in penalties.
For the quarter ending March 31, 1992, Erdheim reported $8,953.63 in payroll withholding tax liability in a tax return filed on or about July 8, 1992. Erdheim paid $2,000 to the IRS with his late-filed tax return. On April 30, August 10, and September 14, 1992, the IRS made assessments against Erdheim in the following amounts: $6,953.63 in additional taxes due, $214.61 in accrued interest, and $2,620.85 in penalties.
For the year 1992, Erdheim did not file a tax return with the IRS. On October 14, 1996, the IRS estimated that Erdheim owed $9,059.00 in personal income tax for 1992 and made an assessment against him for his 1992 income tax liabilities in the following amounts: $9,059.00 in taxes due, $3,707.03 in accrued interest, and $4,379.71 in penalties.
On June 14, 1993, Erdheim filed a Chapter 11 bankruptcy petition in the United States Bankruptcy Court for the Eastern District of New York (the "E.D.N.Y. Bankruptcy"). By an order dated August 15, 1996, the Bankruptcy Court held that Erdheim's liabilities, including the taxes, interests and penalties that he owed to the IRS, would not be discharged in that proceeding.
The IRS submitted two claims for federal income tax and federal employment withholding taxes in the E.D.N.Y. Bankruptcy. On May 10, 2001, the Chapter 7 Trustee, Andrew M. Thaler (the "Trustee"), issued two checks to the IRS in the amounts of $34,000 and $52,985.37, pursuant to a court-approved plan of distribution. The Trustee sent these checks on behalf of Erdheim's bankruptcy estate to the IRS in partial settlement of the IRS's claims.
The IRS applied the entire amount of the $52,985.37 payment from the Trustee to Erdheim's 1986 income tax liability and the $34,000 payment to his payroll withholding tax liabilities.
On June 16, 2003, the IRS issued a Notice of Determination Concerning Collection Action(s) under Section 6320 and/or 6330 (the "Notice of Determination") to Erdheim. The Notice of Determination advised Erdheim that the IRS would commence collection actions with respect to Erdheim's income tax liabilities for the years 1990-1992 because Erdheim had not *408 submitted documentation to substantiate his challenge to these taxes. The notice also advised Erdheim of his right to challenge the IRS's tax liability determination by "fil[ing] a petition with the United States Tax Court."
On July 1, 2003, Erdheim commenced Erdheim v. Commissioner of Internal Revenue, No. 10432-03 L (the "Tax Court Action") before the United States Tax Court challenging the IRS's determination of his income tax liabilities for the years 1986 and 1990-1992.
Before trial, Erdheim and the IRS reached a settlement, the terms of which are contained in an IRS Form 656, Offer in Compromise (the "Offer in Compromise"). A Tax Court Settlement Stipulation ("Stipulation") and the attached Offer in Compromise were filed on June 14, 2004 (collectively, the "Settlement"). In addition to his income tax liabilities for the years 1990-1992, the Settlement resolved all of Erdheim's other outstanding tax liabilities, including his 1986 income tax liability and quarterly payroll withholding tax liabilities described above, additional quarterly payroll withholding tax liabilities that he had incurred in the second, third and fourth quarters of 1992 and the first quarter of 1993, and annual federal unemployment withholding taxes that he had incurred in the years 1991-1993.
Pursuant to the Settlement, Erdheim agreed to make twenty monthly payments of $100.00 per month to resolve all of his outstanding tax liabilities. In addition, he agreed to "comply with all provisions of the Internal Revenue Code relating to filing [his] returns and paying [his] required taxes for five years" and that the IRS would keep, as "additional consideration beyond the amount of [his] offer," "any refund, including interest, due to [him] because of overpayment of any tax or other liability, for tax periods extending through the calendar year that the IRS accepts the offer." Decl. of Robert A. Baxter ("Baxter Decl."), Ex. 3.
In the Offer in Compromise, Erdheim did not contest that he was liable for his income tax or withholding tax liabilities, but rather averred that he had "insufficient assets and income to pay the full amount." Id.
The Settlement was approved by the Tax Court in a decision dated June 18, 2004.
Between October 2004 and February 2006, Erdheim made twenty $100 payments to the IRS pursuant to the Settlement. However, due to internal miscommunications, the offer-in-compromise unit of the IRS (the "Offer Unit") did not process the Settlement until November 2006. That delay caused the IRS's automated data system to continue to indicate that collection actions be taken with respect to tax liabilities covered by the Settlement, see, e.g., Complaint at ¶¶ 28-30 (the IRS inadvertently levied Erdheim's wages in November 2004); ¶ 63 (erroneous notice of tax liability in August 2006); SI 66 (an inadvertently issued notice of intent to levy in August 2007), although no funds were obtained by the IRS from either Erdheim or a third-party as a result of these collection actions.
In 2005, during the same period that the Offer Unit failed to process the Settlement, it was determined that Erdheim's tax liabilities for certain years from 1986 through 2003 had been improperly assessed. The reexamination caused the IRS's automated data system to reflect certain overpayments by Erdheim. Erdheim did not file a timely administrative refund claim with the IRS in connection with these overpayments.
After becoming aware of the inadvertent collection efforts resulting from the delay *409 in processing the Settlement, the IRS no longer deems Erdheim to have any tax liability associated with any period prior to June 18, 2004, the time of the Settlement.
According to the IRS, if Erdheim meets his remaining obligations under the Settlement, including continuing to pay his required taxes until June 2011, the IRS will not undertake any further collection efforts against him based on to any tax liability associated with any period prior to June 18, 2004. However, the IRS has contended that it has the right to collect all outstanding tax liabilities from Plaintiff in the event that he fails to comply with the obligations he specifically assumed in connection with the Settlement.
Erdheim's complaint sets forth three causes of action. The first seeks injunctive relief to enforce the terms of the Tax Court Settlement Stipulation and the attached Offer in Compromise. The second cause of action seeks a declaratory judgment.[1] The third cause of action seeks an order requiring the IRS to return the two payments made by the Trustee in May 2001 to satisfy federal tax claims that the IRS had submitted in the E.D.N.Y. Bankruptcy totaling approximately $87,000, excluding interest.

III. THE APPLICABLE STANDARD
The IRS has moved for dismissal of Erdheim's first and third causes of action on the basis of lack of subject matter jurisdiction under Fed.R.Civ.P. 12(b)(1) and to dismiss the third cause of action for a failure to state a claim under Fed. R.Civ.P. 12(b)(6).
A claim is "properly dismissed for lack of subject matter jurisdiction under Rule 12(b)(1) when the district court lacks the statutory or constitutional power to adjudicate it." Makarova v. United States, 201 F.3d 110, 113 (2d Cir.2000). "When jurisdiction is challenged, the plaintiff `bears the burden of showing by a preponderance of the evidence that subject matter jurisdiction exists.'" Arar v. Ashcroft, 532 F.3d 157, 168 (2d Cir.2008) (quoting APWU v. Potter, 343 F.3d 619, 623 (2d Cir.2003)). "[J]urisdiction must be shown affirmatively, and that showing is not made by drawing from the pleadings inferences favorable to the party asserting it." Shipping Fin. Servs. Corp. v. Drakos, 140 F.3d 129, 131 (2d Cir.1998) (citation omitted). As such, the Court may rely on evidence outside the pleadings, including declarations submitted in support of the motion and the records attached to these declarations. See Makarova, 201 F.3d at 113 ("In resolving a motion to dismiss . . . under Rule 12(b)(1), a district court . . . may refer to evidence outside the pleadings.").
In considering a motion to dismiss pursuant to Rule 12(b)(6), the Court construes the complaint liberally, "accepting all factual allegations in the complaint as true, and drawing all reasonable inferences in the plaintiff's favor." Chambers v. Time Warner, Inc., 282 F.3d 147, 152 (2d Cir. 2002) (citing Gregory v. Daly, 243 F.3d 687, 691 (2d Cir.2001)). However, mere "conclusions of law or unwarranted deductions of fact" need not be accepted. First Nationwide Bank v. Gelt Funding Corp., 27 F.3d 763, 771 (2d Cir.1994) (quotations and citation omitted). "`The issue is not whether a plaintiff will ultimately prevail but whether the claimant is entitled to offer evidence to support the claims . . . .'" Villager Pond, Inc. v. Town of Darien, 56 F.3d 375, 378 (2d Cir.1995) (quoting *410 Scheuer v. Rhodes, 416 U.S. 232, 236, 94 S.Ct. 1683, 40 L.Ed.2d 90 (1974)). In other words, "`the office of a motion to dismiss is merely to assess the legal feasibility of the complaint, not to assay the weight of the evidence which might be offered in support thereof.'" Eternity Global Master Fund Ltd. v. Morgan Guar. Trust Co. of N.Y., 375 F.3d 168, 176 (2d Cir.2004) (quoting Geisler v. Petrocelli, 616 F.2d 636, 639 (2d Cir.1980)). However, "[t]o survive dismissal, the plaintiff must provide the grounds upon which his claim rests through factual allegations sufficient `to raise a right to relief above the speculative level.'" ATSI Commc'ns, Inc. v. Shaar Fund, Ltd., 493 F.3d 87, 98 (2d Cir.2007) (quoting Bell Atl. Corp. v. Twombly, 550 U.S. 544, 555, 127 S.Ct. 1955, 167 L.Ed.2d 929 (2007)).
In addressing the present motion, the Court is mindful that Erdheim is proceeding pro se. "Since most pro se plaintiffs lack familiarity with the formalities of pleading requirements, [courts] must construe pro se complaints liberally, applying a more flexible standard to evaluate their sufficiency than [they] would when reviewing a complaint submitted by counsel." Lerman v. Bd. of Elections in City of N.Y., 232 F.3d 135, 139-40 (2d Cir.2000). However, "pro se status `does not exempt a party from compliance with relevant rules of procedural and substantive law.'" Triestman v. Fed. Bureau of Prisons, 470 F.3d 471, 477 (2d Cir.2006) (quoting Traguth v. Zuck, 710 F.2d 90, 95 (2d Cir.1983)).

IV. THE FIRST CAUSE OF ACTION IS DISMISSED
Pursuant to Article III of the United States Constitution, federal court jurisdiction is limited to "Cases" and "Controversies." The "case and controversy" requirement means that, "at all times, the dispute before the court must be real and live, not feigned, academic, or conjectural." Russman v. Bd. of Educ., 260 F.3d 114, 118 (2d Cir.2001). "When the issues in dispute between the parties are no longer live, a case becomes moot, and the court whether trial, appellate, or Supremeloses jurisdiction over the suit, which therefore must be dismissed." Lillbask ex rel. Mauclaire v. State of Conn. Dep't of Educ., 397 F.3d 77, 84 (2d Cir.2005) (internal quotations and citations omitted).
While the IRS does not dispute that it has, in the past, erroneously attempted to collect on liabilities already subject to the Settlement, Defendant asserts that all such efforts have ceased and that Erdheim is no longer deemed to have to any outstanding tax liability pursuant to the Settlement. Because the IRS has stopped its collection efforts, Erdheim's injunctive claim has been rendered moot to the extent that it seeks to enjoin the IRS from collecting these funds. See Independence Party of Richmond County v. Graham, 413 F.3d 252, 255-56 (2d Cir.2005) ("[I]f an event occurs while a case is pending. . . that makes it impossible for the court to grant any effectual relief whatever to a prevailing party, we must dismiss the case, rather than issue an advisory opinion." (internal quotations and citations omitted)). Further, since there is no indication that the IRS ceased its collection efforts simply to moot out Erdheim's claims, but rather in recognition of the validity of the Settlement, such collection efforts cannot reasonably be expected to recur, and the "capable of repetition, yet evading review" exception to the Article III requirement does not apply. See generally Irish Lesbian & Gay Org. v. Giuliani, 143 F.3d 638, 647 (2d Cir.1998).
In his opposition papers, Erdheim relies on a December 19, 2007 letter from Defendant to demonstrate that the IRS has persisted *411 in seeking to recover liabilities that it is no longer owed. The letter describes in general terms the IRS's position with respect to the non-payment of federal tax returns and recites certain provisions of the Internal Revenue Code. However, the IRS has clarified that the December 19, 2007, letter was sent to Erdheim in error, see Pl.'s Aff. and Ex. in Opp. to Def.'s Mot., Ex. G, and therefore it does not support Plaintiffs position that the IRS's collection efforts are on-going.
The IRS has also consented to an order precluding future collection efforts based on any liabilities subject to the Settlement. See Mem. of Law in Support of Mot. to Dismiss, at 11 n. 9. Therefore, to the extent that Plaintiff's injunctive claim can be construed to seek relief with respect to future collection efforts by the IRS, that claim is also moot.
Finally, as to Plaintiff's request for an order compelling the IRS to notify "appropriate [c]redit [reporting] agencies" as to the release of federal tax liens levied against him, see Complaint at ¶ 73, the Anti-Injunction Act bars the issuance of such an order. See 26 U.S.C. § 7421(a) ("Except as [specifically] provided . . . no suit for the purpose of restraining the assessment or collection of any tax shall be maintained in any court by any person. . . ."); see also Weiner v. I.R.S., 986 F.2d 12, 13 (2d Cir.1993) (per curiam) (explaining that there is no "path to legal redress" for a taxpayer where IRS made clear errors).
Because Erdheim has not shown that a case or controversy remains as to his injunctive claim, the IRS's motion to dismiss the first cause of action is granted.

V. ERDHEIM'S THIRD CAUSE OF ACTION IS ALSO DISMISSED
Defendant has also moved to dismiss Erdheim's third cause of action, which asserts a refund claim pursuant to 26 U.S.C. § 7422. That section of the Internal Revenue Code specifically limits jurisdiction of the federal courts over tax refund claims to cases where the taxpayers have exhausted administrative remedies by "duly fil[ing]" "a claim for refund or credit" with the IRS in accordance with applicable Internal Revenue Code provisions and IRS regulations. 26 U.S.C. § 7422(a). Another provision, 26 U.S.C. § 6511(a), further establishes a timeliness requirement for the filing of administrative refund claims. Such claims must be filed "within 3 years from the time the return was filed or 2 years from the time the tax was paid, whichever of such periods expires the later, or if no return was filed by the taxpayer, within 2 years from the time the tax was paid." Id.
These statutory provisions "establish strict timeframes for filing" claims for refunds and overpayments and impose an administrative exhaustion requirement. See United States v. Clintwood Elkhorn Mining Co., 553 U.S. 1, 128 S.Ct. 1511, 1514-15, 170 L.Ed.2d 392 (2008). "Read together, the import of these sections is clear: unless a claim for refund of a tax has been filed within the time limits imposed by § 6511(a), a suit for refund . . . may not be maintained in any court." Id. at 1515.
Erdheim has not alleged that he ever filed a timely administrative claim for refund with the IRS. Even drawing all reasonable inferences in Erdheim's favor, and treating his discussions with the IRS's Taxpayer Advocate Service concerning his tax liabilities as an informal claim for refund, such a claim was still untimely. According to the complaint, Erdheim did not begin communicating with the Taxpayer Advocate Service until 2005, at least three and half years after the May 2001 payments *412 were made to the IRS and outside of the three-year period prescribed by 26 U.S.C. § 6411(a). See Crosby-Jean v. Dep't of Treasury, No. 02 Civ. 10030(TPG), 2004 WL 691315, at *2 (S.D.N.Y. Mar. 31, 2004). Because Erdheim has not met the administrative exhaustion requirement for filing his refund claim, his claim must be dismissed pursuant to Rule 12(b)(1). See Roberts v. I.R.S., 468 F.Supp.2d 644, 650 (S.D.N.Y.2006) (dismissing cause of action where "plaintiff's `failure to comply with the regulation deprives the federal district court of jurisdiction.'") (quoting Stephens v. United States, 437 F.Supp.2d 106, 109 (D.D.C.2006)).[2]
In the alternative, the IRS has also moved to dismiss the third cause of action pursuant to Rule 12(b)(6) for failure to state a claim. In assessing the sufficiency of Erdheim's refund claim, the Stipulation is considered in its entirety because the Settlement is "integral" to the complaint. See Chambers, 282 F.3d at 152-53 (resolving Rule 12(b)(6) motion to dismiss, courts can consider document not incorporated by reference but relied on heavily in the complaint). The Settlement specifically provides that the IRS can "keep any refund. . . due [plaintiff] because of overpayment of any tax or other liability, for tax periods extending through the calendar year that the IRS accepts the offer," or through 2004. Baxter Decl., Ex. 3. Such unambiguous language precludes Erdheim from asserting a claim for refund, and accordingly Defendant is also entitled to dismissal of the refund claim pursuant to Rule 12(b)(6). See PARCC Health Care, Inc. v. United States, No. 01 Civ. 379(JBA), 2007 WL 4707749, at *2 (D.Conn. Nov. 1, 2007).

VI. CONCLUSION
Based on the conclusions set forth above and the consent of the IRS, the motion of the IRS is granted, the first and third causes of action of the complaint are dismissed, and the IRS is precluded from pursuing future collection efforts with respect to the liabilities subject to the Settlement.
It is so ordered.
NOTES
[1]  Because the IRS has not moved to dismiss this cause of action, and it is represented that the IRS and Erdheim plan to submit a stipulation resolving that claim, Erdheim's declaratory judgment cause of action will not be addressed here.
[2]  The doctrine of equitable recoupment, "a judicially created exception to the statutory limitation periods contained in the tax laws," Bedell v. United States, No. 87 Civ. 7751(CSH), 1991 WL 12410, at *3 (S.D.N.Y. Jan. 23, 1991), does not provide this Court with independent jurisdiction over Erdheim's refund claim. See United States v. Dalm, 494 U.S. 596, 608, 110 S.Ct. 1361, 108 L.Ed.2d 548 (1990) (holding that equitable recoupment, without more, does not give court jurisdiction over refund claims).
