Related Clues:

• Org. that provides many instructions
• Form letters?
• C.P.A. hirer
• Offerer of e-filing
• Spring collection org.
• Rcpt. examiners
• Its job is taxing
• 1040 initials
• April letters
• Form 1040 issuer
• Dept. of the Treasury dept.
• 1040 issuer
• Collectors' org.
• Return address letters?
• Return addressee?