COHEN, Judge: Respondent determined a $567 deficiency in petitioner's Federal income tax for 2009. The issues for decision are whether petitioner is liable for tax on unreported interest income and, if so, at what tax rate. Unless otherwise indicated, all section references are to the Internal Revenue Code in effect for the year in issue, and all Rule references are to the Tax Court Rules of *174 Practice and Procedure. Additionally, all article references are to the Agreement Between the Government of the United States of America and the Government of the People's Republic of China for the Avoidance of Double Taxation and the Prevention of Tax Evasion with Respect to Taxes on Income, Apr. 30, 1984, T.I.A.S. No. 12,065 (China treaty), unless otherwise stated.

Petitioner could not appear for trial in the United States. He initially proposed that the parties submit the case under Rule 122, but respondent was not willing to do so. At the Court's urging, respondent prepared a stipulation that could be the basis for submission without trial under Rule 122, but petitioner declined to execute that stipulation. Each party2014 Tax Ct. Memo LEXIS 171">*172 submitted a pretrial memorandum that was treated as an offer of proof for purposes of deciding the legal issues presented. SeeRule 1(a), (d).

As no facts were stipulated, undisputed facts were discerned from the filings of the parties, which included documents that were contemporary to the relevant events of this case. Petitioner resided in Wisconsin at the time his petition was filed.

Petitioner, a citizen of the People's Republic of China (China), first entered the United States on August 10, 1999, on an F-1 visa. The F-1 visa allowed *175 petitioner to attend U.S. universities where he obtained his master's degree and doctorate in computer science.

In 2005, petitioner worked as a professor at a New York State university and earned wages of $62,711.49. Petitioner had his 2005 Federal tax return prepared by H and R Block Eastern Enterprises. On his 2005 Form 1040, U.S. Individual Income Tax Return, petitioner excluded $5,000 for personal services performed while a student. In an attached treaty benefit statement, petitioner stated: "BECAUSE TAXPAYER HAS BEEN IN THE U S SINCE AUGUST 1999 ON A VALID AND RENEWED F1 VISA FOR EDUCATION AND TRAINING HE NOW MUST FILE ON FORM 1040, BUT IS STILL ALLOWED2014 Tax Ct. Memo LEXIS 171">*173 A $5000 INCOME DEDUCTION UNDER U.S. - CHINA TAX TREATY ARTICLE 20(c)." Petitioner signed the 2005 tax return, which reported a refund due of $2,674. He received the refund in April 2006.

From August 24, 2008, through May 22, 2012, petitioner had an H-1B visa, which permitted him to work as an assistant professor for the University of Wisconsin-Whitewater (UW-Whitewater). During some or all of this period, petitioner maintained an apartment and an office in Whitewater, Wisconsin.

On or around April 29, 2008, petitioner prepared Form 1040X, Amended U.S. Individual Income Tax Return, for his 2005 tax year. On an attached Form *176 8833, Treaty-Based Return Position Disclosure Under Section 6114 or 7701(b), petitioner explained his treaty-based return position, stating that "[u]nder the residency rules of IRC 7701(b) the taxpayer passed the substantial presence test in 2004 and his residency starting date was January 1, 2004. This means that for 2005, the taxpayer is a resident alien for tax purposes and is filling [sic] form 1040 for 2005 as a resident alien." Petitioner further stated that "even though the taxpayer has become a resident alien under the substantial presence test of IRC 7701(b), he may still claim the benefit of article 19 of the USA-China income tax treaty.2014 Tax Ct. Memo LEXIS 171">*174 The taxpayer has elected to do this, and is claiming an exclusion from gross income for 2005 of $62,711.49 in professor wages". Petitioner echoed these statements in his self-made "Return Notes" under the title "TREATY BENEFIT STATEMENT", which he attached to his signed amended return. As a result, petitioner excluded gross income of $62,711.49 and reported another refund due for 2005.

On or around March 30, 2009, petitioner received a refund of $9,209 with respect to the 2005 amended return. Petitioner also received from the Government $2,098 of interest in relation to this refund.

Petitioner had his 2009 Federal tax return prepared by a certified public accountant from Wellnitz Tax and Accounting in Whitewater, Wisconsin. On *177 Form 1040 and Schedule B, Interest and Ordinary Dividends, petitioner did not report the $2,098 of refund interest as income received in 2009. Petitioner did report his $72,225 of wages from UW-Whitewater but did not claim any treaty exemptions on his 2009 tax return. Petitioner's address shown on his return was in Whitewater, Wisconsin.

The IRS sent to petitioner a notice of deficiency dated December 27, 2011, explaining that he had failed to report the interest2014 Tax Ct. Memo LEXIS 171">*175 income. Petitioner timely filed a petition with this Court.

After the spring 2012 semester, UW-Whitewater did not renew petitioner's employment contract. Without a job, petitioner applied for a B-2 visa as a temporary visitor, but the visa was not granted. Petitioner voluntarily left the United States in the latter part of 2012.

Petitioner filed the petition in this case on March 19, 2012. Petitioner's only address shown on the petition was in Whitewater, Wisconsin.

There is no record of petitioner's having left the United States from his arrival in August 1999 up to the latter part of 2012. Petitioner's passport shows no official markings other than a stamp displaying, in part, Chinese characters and "[1999]", a stamp from the American Embassy in Beijing with the date June 1999, *178 and a U.S. immigration stamp shown above petitioner's U.S. visa indicating that petitioner was admitted into the United States on August 10, 1999.

Respondent argues that petitioner was required to report the $2,098 of interest income that he received in 2009 on his Federal tax return for that year. Over the course of these proceedings, petitioner has contended that: (1) if the IRS had processed his2014 Tax Ct. Memo LEXIS 171">*176 2005 tax return correctly, then he would have received any interest due from the refund in 2006, a tax year that would have absorbed the interest income with no taxable result; (2) the interest is exempt income because it arose from exempt income; namely, the second 2005 tax refund, which derived from a treaty exemption claimed on petitioner's 2005 amended tax return; and (3) in the alternative, petitioner reasons that if the interest income is required to be reported, then article 10 of the China treaty limits the tax rate to 10%. Petitioner asserts that this 10% treaty limitation applies whether or not he was a resident of the United States and maintains that he was a resident of China in 2009.

Generally, the taxpayer bears the burden of proving that the Commissioner's determination is incorrect. Rule 142(a); Welch v. Helvering, 290 U.S. 111">290 U.S. 111, 290 U.S. 111">115, 54 S. Ct. 8">54 S. Ct. 8, 78 L. Ed. 212">78 L. Ed. 212, 1933-2 C.B. 112 (1933). This Court has recognized an exception to these rules in cases involving unreported income where the Commissioner introduces no substantive evidence *179 but relies solely on the presumption of correctness. Jackson v. Commissioner, 73 T.C. 394">73 T.C. 394, 73 T.C. 394">401 (1979). Here, however, petitioner admits to having received the interest income, and thus respondent's burden is satisfied.

Nevertheless, petitioner has repeatedly asserted that the burden of2014 Tax Ct. Memo LEXIS 171">*177 proof lies with respondent. The burden of proof with respect to a factual issue may be placed on the Commissioner under section 7491(a) if the taxpayer introduces credible evidence regarding that issue and establishes that the taxpayer complied with the requirements to substantiate items, maintain records, and fully cooperate with the Commissioner's reasonable requests. Sec. 7491(a)(2)(A) and (B). Petitioner, however, has failed to establish that he complied with the requirements of section 7491(a). As a result, the burden of showing the interest to be nontaxable, or to be taxable at a reduced rate, remains with petitioner. In any event, this case is decided on the preponderance of the undisputed evidence.

Petitioner's first contention, that if he had received the interest income in 2006 then there would be no issue, is groundless. The IRS processed his original 2005 return in accordance with his reporting. Petitioner did not claim the bulk of the treaty exemptions until he filed a 2005 amended return in 2008. His expectation that the IRS should have known what he meant to report, when even *180 he and his tax return preparation service apparently did not, is an untenable position.

Petitioner's second contention is that the interest is exempt2014 Tax Ct. Memo LEXIS 171">*178 income because it arose from exempt income, i.e., the tax refund that derived from the treaty exemption claimed on the 2005 amended return. In the case of an overpayment of tax, the Government may credit the amount of such overpayment, including any interest allowed thereon, and refund any balance. Sec. 6402. It is well-established law that interest is generally taxable as income to the recipient, including interest resulting from a tax refund. Seesecs. 61(a)(4), 861(a)(1), 871(a)(1)(A); sec. 1.61-7(a), Income Tax Regs.; see also, e.g., Muir v. Commissioner, B.T.A.M. (P-H) para. 32, 328, at 32-35 (1932) ("[T]he interest upon the over-payment for 1919 did constitute taxable income * * * [and] such interest which was received by the petitioner should be included in the amount of his gross income." (Citation omitted.)). Exclusions from income are to be narrowly construed. Commissioner v. Schleier, 515 U.S. 323">515 U.S. 323, 515 U.S. 323">328, 115 S. Ct. 2159">115 S. Ct. 2159, 132 L. Ed. 2d 294">132 L. Ed. 2d 294 (1995).

Petitioner failed to cite any authority for his contention that interest takes on the character of exempt income if it is tangentially based upon exempt income. Because petitioner failed to show an exclusion for interest income deriving from a tax refund, the interest is includable in income.

*181 Petitioner's alternative argument is that the interest income is taxable but only at a 10% rate pursuant2014 Tax Ct. Memo LEXIS 171">*179 to article 10. While declaring himself to have been a resident solely of China in 2009, petitioner nevertheless argues that the 10% tax rate of article 10 applies whether he is a resident of the United States, China, or both.

When a treaty is interpreted, its words are construed according to their ordinary meaning. Amaral v. Commissioner, 90 T.C. 802">90 T.C. 802, 90 T.C. 802">812 (1988); see Sumitomo Shoji Am., Inc. v. Avagliano, 457 U.S. 176">457 U.S. 176, 457 U.S. 176">180, 102 S. Ct. 2374">102 S. Ct. 2374, 72 L. Ed. 2d 765">72 L. Ed. 2d 765 (1982). Where the Internal Revenue Code provides for the taxation of income, ''[w]hatever basis there may be * * * for relieving * * * [such] tax must be found in the words or implications of the * * * [treaty]." Maximov v. United States, 373 U.S. 49">373 U.S. 49, 373 U.S. 49">51, 83 S. Ct. 1054">83 S. Ct. 1054, 10 L. Ed. 2d 184">10 L. Ed. 2d 184, 1963 C.B. 689">1963 C.B. 689 (1963). While neither a treaty nor U.S. revenue laws have preferential status, Internal Revenue Code provisions nonetheless are to be applied with due regard to germane tax treaty provisions. Secs. 894, 7852(d)(1); see Amaral v. Commissioner, 90 T.C. 802">90 T.C. 812.

The China treaty contains the following provisions. Article 1 provides that "[t]his Agreement shall apply to persons who are residents of one or both of the Contracting States." Article 3.1.c. defines "Contracting State" as meaning either China or the United States, as the context requires. Article 4.1 provides that "the *182 term 'resident of a Contracting State' means any person who, under the laws of that Contracting State, is liable to tax therein by reason of his domicile, residence, place2014 Tax Ct. Memo LEXIS 171">*180 of head office, place of incorporation or any other criterion of a similar nature." Article 10.1 essentially provides that interest arising in a Contracting State (in this case, the United States) and paid to a resident of the other Contracting State (China) may be taxed in the other Contracting State (China). However, the interest may also be taxed in the Contracting State (United States) according to its laws—but if the recipient is the beneficial owner of the interest, the tax shall not exceed 10% of the gross amount of the interest. Article 10.2. Thus for petitioner to benefit from the China treaty, he must be considered a resident of China as defined by the China treaty.

Petitioner argues that article 4 residency is determined primarily by where an individual has his permanent home. Petitioner states that his permanent home in 2009 was in Beijing, China, and provides as offers of proof his "unsworn foreign declaration" and various exhibits. Conversely, petitioner implies that he could not have been a resident of the United States in 2009 because he never owned a permanent home there. He concludes that he was a resident of China in 2009 as determined by the text of the China treaty.2014 Tax Ct. Memo LEXIS 171">*181

*183 Article 4 indicates that to be a resident of China for purposes of the China treaty, petitioner must show that under Chinese tax statutes and laws he was liable for taxation in 2009 because he resided (or was domiciled or something to that effect) in China. "Resident", "domicile", and other such terms as used in law have "various degrees of meaning from temporary physical presence to permanent abode, and the meaning of these words in a statute depends upon the context and the purpose of the statute in which they occur." Simenon v. Commissioner, 44 T.C. 820">44 T.C. 820, 44 T.C. 820">834 (1965). The Court there explained:

The rule relating to establishing a matter of foreign law is that judicial notice by a court cannot be taken of foreign law, as opposed to local law, the laws of the United States and general matters of domestic law, to which the concept of judicial notice extends. Under article VI, clause 2, of the Constitution, treaties are laws of the United States, * * * so that we may take judicial notice of the tax treaty * * *; but where, in the context of a treaty, the meaning of a treaty term depends upon a law of the foreign country, we may not ascertain the question of foreign law by resorting to judicial notice. A question of foreign law is a question of fact to be proved by the party2014 Tax Ct. Memo LEXIS 171">*182 having the burden of proof * * *