On April 7, 1977 the IRS issued a notice of deficiencies and fraud penalties with respect to appellant’s 1972 and 1973 income *1238 tax returns. Some eight years later, appellant filed a pro se petition for redetermination. The tax court dismissed the petition as untimely under 26 U.S.C. § 6213 (a), which requires that such a petition be filed “[wjithin 90 days ... after the notice of deficiency authorized in section 6212 is mailed.”

Appellant claims he did not receive the notice of deficiency. The tax court found appellant received a copy of the notice from his attorney, Herbert D. Sturman, in ample time to file a timely petition for review in the tax court. That factual finding is not clearly erroneous. See Mayors v. Commissioner, 785 F.2d 757, 759 (9th Cir.1986). Although IRS records of mailing and receipt of such notices were destroyed after 5 years, appellant’s attorney testified he received the notice and it was and remained his normal practice to personally deliver such notices to his clients within a few days of receipt. The tax court credited Sturman’s testimony, noting that he was a credible and forthright witness, and that his testimony was uncontroverted. Such credibility determinations are for the tax court. See Anderson v. City of Bessemer City, 470 U.S. 564, 573-75 , 105 S.Ct. 1504, 1511-12 , 84 L.Ed.2d 518 (1985). Moreover, petitioner declined to testify and since the fact at issue was peculiarly within his knowledge, the court properly concluded his testimony would be unfavorable to him, citing Wichita Terminal Elevator Co. v. Commissioner, 6 T.C. 1158, 1165 (1946), aff'd, 162 F.2d 513 (10th Cir.1947). See Mammoth Oil Co. v. United States, 275 U.S. 13, 52 , 48 S.Ct. 1, 10 , 72 L.Ed. 137 (1927); see also 2 J. Wigmore, Wigmore on Evidence §§ 285, 289 (1979).

As the government points out, the finding was confirmed by contemporaneous documentary evidence — including Stur-man’s letter of April 13, 1977 to the government acknowledging receipt of the deficiency notice — and by the fact that although appellant denied receipt of the notice, he attached a copy to his petition for review.

Appellant contends the tax court erred in receiving Sturman's testimony over appellant’s objection based on the attorney-client privilege. The privilege forbids testimony that “would in any way convey the substance of confidential professional communications between [a client] and his attorney.” In re Osterhoudt, 722 F.2d 591, 594 (9th Cir.1983) (per curiam). Sturman did not testify regarding disclosures made to Sturman in confidence or regarding advice Sturman gave appellant with respect to those confidences. He testified only that he had conveyed information from the government to his client. This case is analogous to those holding that an attorney may be required to testify in a prosecution for “bail jumping,” 18 U.S.C. § 3150 , that he had informed his client of the date of the hearing at which the defendant failed to appear. See, e.g., United States v. Freeman, 519 F.2d 67, 68 (9th Cir.1975). “The relaying of this message is not in the nature of a confidential communication. Defense counsel served merely as a conduit for transmission of a message.” Id. (quoting United States v. Hall, 346 F.2d 875, 882 (2d Cir.1965)).

Appellant suggests Sturman is biased against him. There is no evidence in the record to support the claim. In any event, bias goes to credibility, see United States v. Abel, 469 U.S. 45, 50-51 , 105 S.Ct. 465, 468 , 83 L.Ed.2d 450 (1984), and credibility was for the fact-finder to determine. See United States v. Vaccaro, 816 F.2d 443, 454 (9th Cir.1987).

Appellant objects that Sturman was not listed as a witness in the government’s trial memorandum as required by a standing order of the tax court. Appellant was not prejudiced. The government’s memorandum indicated Sturman would be called as an impeachment witness if appellant testified, and appellant received a copy of the subpoena issued to Sturman several days before trial. He had ample opportunity to prepare to meet Sturman’s testimony.

Appellant contends the notice of deficiency was ineffective because it was not addressed to his “last known address” within the meaning of section 6212(b)(1). “Actual notice” is the central goal of this section. Clodfelter v. Commissioner, 527 *1239 F.2d 754, 756 (9th Cir.1975). “[I]f mailing results in actual notice without prejudicial delay ... it meets the conditions of § 6212(a) no matter to what address the notice successfully was sent.” Id. at 757. For the same reason it is irrelevant that actual notice is conveyed by a copy of the notice of deficiency rather than the original. Either is sufficient to provide the taxpayer with the information he requires to obtain pre-payment review by filing a timely petition in the tax court.

Mulvania v. Commissioner, 769 F.2d 1376 (9th Cir.1985), is not to the contrary. There the taxpayer’s accountant informed the taxpayer of the receipt of a copy of a misaddressed notice of deficiency. There was “no evidence in the record that [the accountant] discussed the contents of the notice with Mulvania,” id. at 1377 , and Mulvania “never physically received a notice of deficiency.” Id. at 1379 . The IRS argued that it was sufficient that the taxpayer “had actual knowledge of the notice even if not its contents.” Id. at 1380 . We held to the contrary, distinguishing Clodfelter as a case in which a notice of deficiency was “actually, physically received by a taxpayer.” Id. at 1378.

Since appellant, unlike the taxpayer in Mulvania , had “actual notice without prejudicial delay” of the contents of the 1977 notice, through timely receipt of an exact copy of that notice, his petition filed eight years later was properly dismissed. Clodfelter, 527 F.2d at 756 ; 26 U.S.C. § 6213 (a); see also Tenzer v. Commissioner, 285 F.2d 956, 958 (9th Cir.1960) (copy of notice personally delivered to taxpayer by agent of Commissioner). We confine our ruling to cases in which it is beyond contention that the taxpayer has received all of the information that would be furnished by receipt of the notice of deficiency itself — that is, cases in which the taxpayer has received a duplicate of the notice of deficiency.

AFFIRMED.