- 31 - Generally, a taxpayer's "last known address" is the address to which, in light of all surrounding facts and circumstances, respondent reasonably believed the taxpayer wished the notice of deficiency to be sent. [Citations omitted.] The record does not indicate that before September 14, 1990, petitioner filed any tax returns after he filed his 1986 tax return, on January 19, 1988. See supra table 2. Thus, when the notice of deficiency was sent, the most recently filed tax return was the 1986 tax return. The address shown on the 1986 tax return is the tax return Classen address. (The bankruptcy discharge order, which shows the P.O. drawer address, preceded petitioner's filing of his tax returns for 1982 through 1986.) The address to which the September 14, 1990, notice of deficiency was sent (the I.R.S. Classen address) is the same as the tax return Classen address, except for the ZIP code. The tax return Classen address includes the ZIP code 73069; the I.R.S. Classen address includes the ZIP code 73071-4616. Each U.S. Postal Service's annual National Five-Digit ZIP Code and Post Office Directory for 1987 through 1993 shows that (1) Classen Blvd. for Norman, Oklahoma, is in ZIP code 73071, (2) Classen Cir. for Norman, Oklahoma, is in ZIP code 73072, and (3) ZIP code 73069 is in Norman, Oklahoma, but does not include any street named "Classen". We conclude (a) that petitioner erred on his tax returns, as well as other documents referred to in our findings, when he used the ZIP code 73069, and (b) that respondent's use of the I.R.S. Classen address on the September 14, 1990, notice ofPage: Previous 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Next
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