
    Betty BARBER, Realtor on behalf of United States of America, Roxanne A. Joffe, Realtor on behalf of United States of America, Plaintiffs-Appellants, v. PAYCHEX INC., Ceridian Corportion, a Wholly owned subsidiary of Ceridian Corp., Defendants-Appellees, Automatic Data Processing, Inc., Defendant.
    No. 10-14334.
    United States Court of Appeals, Eleventh Circuit.
    Aug. 30, 2011.
    Edward M. Joffe, Joffe & Joffe, LLC, Coral Gables, FL, for Plaintiffs-Appellants.
    Betty Barber, Miami, FL, pro se.
    Michael P. Matthews, Foley & Lardner, LLP, Tampa, FL, Thomas F. Carlucci, Foley & Lardner, LLP, San Francisco, CA, Mark Paul Schnapp, Greenberg Traurig, LLP, Mary Leslie Smith, Foley & Lardner, LLP, Miami, FL, Peter W. Carter, Oliver J. McKinstry, John Rock, Dorsey & Whitney, LLP, Minneapolis, MN, Jeffrey M. Weissman, Weissman, Dervishi, Borgo & Nordlund, P.A., Fort Lauderdale, FL, for Defendants-Appellees.
    Before TJOFLAT and MARTIN, Circuit Judges, and DAWSON, District Judge.
    
      
       Honorable Robert T. Dawson, United States District Judge for the Western District of Arkansas, sitting by designation.
    
   PER CURIAM:

Plaintiffs-Relators Betty Barber and Roxanne A. Joffe appeal the district court’s dismissal of their qui tam action against Defendants Paychex, Inc., Automatic Data Processing, Inc., and Ceridian Corporation under Federal Rules of Civil Procedure 9(b), 12(b)(1), and 12(b)(6). Defendants provide payroll, tax, human resources, and benefits administrative services to businesses within the United States and elsewhere. After carefully reviewing the record and having the benefit of oral argument, we affirm.

Under the reverse false claims provision of the False Claims Act (“FCA”), the United States, or a private citizen acting on its behalf, may sue to recover monies from “[a]ny person who ... knowingly makes, uses, or causes to be made or used, a false record or statement to conceal, avoid, or decrease an obligation to pay or transmit money or property to the Government.” 31 U.S.C. § 3729(a)(7) (2008). Plaintiffs-Realtors’ qui tam complaint alleges Defendants violated § 3729(a)(7) by including interest derived from funds held for clients as taxable income on their federal income tax returns for fiscal years 2006 through 2008. The Tax Bar provision of the FCA provides that “[§ 3729] does not apply to claims, records, or statements made under the Internal Revenue Code of 1986.” Id. § 3729(e). Because Plaintiffs-Relators’ claims involve “records[] or statements made under” the Tax Code, the district court did not err in dismissing their complaint for lack of subject matter jurisdiction under Fed.R.Civ.P. 12(b)(1) on the basis that it is barred by the FCA’s Tax Bar. Accordingly, we affirm.

AFFIRMED. 
      
      . After this qui tam complaint was filed, the False Claims Act was amended by the Fraud Enforcement and Recovery Act, Pub.L. No. 111-21, 123 Stat. 1617, and the Patient Protection and Affordable Care Act of 2010, Pub.L. 111-148, 124 Stat. 119. Those amendments, however, do not apply retroactively. See Graham Cnty. Soil and Water Conservation Dist. v. United States ex. rel. Wilson, - U.S. -. 130 S.Ct. 1396, 1400 n. 1. 176 L.Ed.2d 225 (2010); Hopper v. Solvay Pharm., Inc., 588 F.3d 1318, 1327 n. 3 (11th Cir.2009). Thus, all references are to the preamended version of the FCA.
     
      
      . Having concluded that the FCA's Tax Bar applies, we need not address Plaintiffs-Relators’ other arguments challenging the district court's dismissal of their qui tam complaint.
     