Authority: § 989Open in workspace
Reg. § 1.989(b)-1 Definition of weighted average exchange rate.
26 CFR § 1.989(b)-1eCFR data as of 2026-07-14
For purposes of section and (4), the term “weighted average exchange rate” means the simple average of the daily exchange rates (determined by reference to a qualified source of exchange rates described in ), excluding weekends, holidays and any other nonbusiness days for the taxable year.
[T.D. 8263, 54 FR 38664, Sept. 20, 1989. Redesignated by T.D. 8367, 56 FR 48437, Sept. 25, 1991; 57 FR 6060, Feb. 18, 1992; T.D. 9452, 74 FR 27890, June 11, 2009]
Official eCFR text of § 1.989(b)-1
Source: decipher.legal/cfr/26/1.989(b)-1 · Treasury Regulations (26 CFR), eCFR data as of 2026-07-14