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The tax Acts, provision by provision

The Income Tax Act (所得税法), the Corporation Tax Act (法人税法), the Consumption Tax Act (消費税法), the Inheritance Tax Act (相続税法) and the Local Tax Act (地方税法), in their text in force. Answers point to the paragraph, so a client abroad can see where a rule comes from.

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Example questions

The answers here are examples written for these pages, to show how an answer rests on the law. They are not legal advice: for your own case, read the official text and ask a qualified professional.

Example question

When must an individual file a final income tax return?

Between 16 February and 15 March of the following year, for a resident whose income for the year still leaves income tax to pay after deductions.

Article 120, paragraph (1)

Income Tax Act 所得税法

  1. If the sum total of a Resident's gross income, retirement income, and timber income for the year exceeds the sum of any Casualty Loss deduction under Chapter II, Section 4 (Deductions from Income) and other deductions; and if the sum total of income taxes calculated when the Resident's gross income, retirement income, and timber income less the aforementioned deductions taken pursuant to Article 87, paragraph (2) (Procedures for Deductions from Income) are deemed to be the Resident's taxable gross income, taxable retirement income, and taxable timber income and Article 89 (Tax Rates) is applied, exceeds dividend tax credits (excluding the case where there is an amount of foreign tax credit that could not be fully deducted in calculating the amount of income taxes set forth in item (iii), the case where there is an amount of tax withheld prescribed in item (iv) that could not be fully deducted in calculating the amount set forth in that item, and the case where there is an amount of prepaid taxes that could not be fully deducted in calculating the amount set forth in item (v)), the Resident must file a return with the district director during the third period (meaning during the period from February 16 to March 15 of the year following the year in question; hereinafter the same applies in this Section) giving the following information, unless the Resident files a return under Article 123, paragraph (1) (Filing Tax Returns Showing Losses). In such a case, if a Resident who has a salary or other wage prescribed in Article 28, paragraph (1) (Salary Income) to be paid in that year to which the provisions of Article 190 (Year-End Adjustments) have been applied files that return, the Resident may, for the information specified by Ministry of Finance Order out of the following information, make the entries specified by Ministry of Finance Order:

    居住者は、その年分の総所得金額、退職所得金額及び山林所得金額の合計額が第二章第四節(所得控除)の規定による雑損控除その他の控除の額の合計額を超える場合において、当該総所得金額、退職所得金額又は山林所得金額からこれらの控除の額を第八十七条第二項(所得控除の順序)の規定に準じて控除した後の金額をそれぞれ課税総所得金額、課税退職所得金額又は課税山林所得金額とみなして第八十九条(税率)の規定を適用して計算した場合の所得税の額の合計額が配当控除の額を超えるとき(第三号に掲げる所得税の額の計算上控除しきれなかつた外国税額控除の額がある場合、第四号に掲げる金額の計算上控除しきれなかつた同号に規定する源泉徴収税額がある場合又は第五号に掲げる金額の計算上控除しきれなかつた予納税額がある場合を除く。)は、第百二十三条第一項(確定損失申告)の規定による申告書を提出する場合を除き、第三期(その年の翌年二月十六日から三月十五日までの期間をいう。以下この節において同じ。)において、税務署長に対し、次に掲げる事項を記載した申告書を提出しなければならない。この場合において、その年において支払を受けるべき第二十八条第一項(給与所得)に規定する給与等で第百九十条(年末調整)の規定の適用を受けたものを有する居住者が、当該申告書を提出するときは、次に掲げる事項のうち財務省令で定めるものについては、財務省令で定める記載によることができる。

  2. (i)

    the gross income, retirement income, and timber income for the year; the casualty loss deduction as under Chapter II, Section 4 and other deductions; and the taxable gross income, taxable retirement income, and taxable timber income or Net Loss for the year;

    その年分の総所得金額、退職所得金額及び山林所得金額並びに第二章第四節の規定による雑損控除その他の控除の額並びに課税総所得金額、課税退職所得金額及び課税山林所得金額又は純損失の金額

  3. (ii)

    if the Resident is applying Article 90, paragraph (1) (Averaging Taxation on Fluctuating Income and Ad Hoc Income), the Fluctuating Income and Ad Hoc Income and the average taxable amount prescribed in paragraph (3) of that Article for the year;

    第九十条第一項(変動所得及び臨時所得の平均課税)の規定の適用を受ける場合には、その年分の変動所得の金額及び臨時所得の金額並びに同条第三項に規定する平均課税対象金額

  4. (iii)

    the income taxes calculated when Chapter III (Calculating the Amount of Taxes) is applied for the taxable gross income, taxable retirement income, and taxable timber income set forth in item (i);

    第一号に掲げる課税総所得金額、課税退職所得金額及び課税山林所得金額につき第三章(税額の計算)の規定を適用して計算した所得税の額

  5. (iv)

    the income taxes set forth in the preceding item less any income taxes that have been or will be collected through withholding from Each Class of Income that is used as the basis for calculating gross income and retirement income or Net Loss as set forth in item (i) (or the income taxes that have been or will be so collected less any part thereof that constitutes an amount to be refunded based on the Resident's having filed a return as under Article 127, paragraphs (1) through (3) (Filing a Tax Return If the Taxpayer Will Become Absent From Japan Partway Through the Year) or based on the income tax connected with that return having been subject to a Reassessment; and less any part thereof that constitutes an amount prescribed by Cabinet Order; hereinafter referred to as the "amount of tax withheld" in this item and the following item);

    第一号に掲げる総所得金額若しくは退職所得金額又は純損失の金額の計算の基礎となつた各種所得につき源泉徴収をされた又はされるべき所得税の額(当該所得税の額のうちに、第百二十七条第一項から第三項まで(年の中途で出国をする場合の確定申告)の規定による申告書を提出したことにより、又は当該申告書に係る所得税につき更正を受けたことにより還付される金額その他政令で定める金額がある場合には、当該金額を控除した金額。以下この号及び次号において「源泉徴収税額」という。)がある場合には、前号に掲げる所得税の額からその源泉徴収税額を控除した金額

  6. (v)

    the amount arrived at when any prepaid taxes for the year are deducted from the amount of income taxes set forth in item (iii) (or from the amount set forth in the preceding item, if there is any amount of tax withheld);

    その年分の予納税額がある場合には、第三号に掲げる所得税の額(源泉徴収税額がある場合には、前号に掲げる金額)から当該予納税額を控除した金額

  7. (vi)

    Income in Each Class that was used as the basis for calculating the gross income set forth in item (i) which constitutes capital gains, occasional income, miscellaneous income, Fluctuating Income not falling under the category of miscellaneous income, or Ad Hoc Income not falling under the category of miscellaneous income, and the income taxes that were or should be Withheld from occasional income, miscellaneous income, or Ad Hoc Income not falling under the category of miscellaneous income;

    第一号に掲げる総所得金額の計算の基礎となつた各種所得の金額のうちに譲渡所得の金額、一時所得の金額、雑所得の金額、雑所得に該当しない変動所得の金額又は雑所得に該当しない臨時所得の金額がある場合には、これらの金額及び一時所得、雑所得又は雑所得に該当しない臨時所得について源泉徴収をされた又はされるべき所得税の額

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Example question

Which businesses don't have to pay consumption tax?

A business whose taxable sales in its base period were 10 million yen or less is exempt for that taxable period, unless it is a qualified invoice issuer or another rule of the Act applies.

Article 9, paragraph (1)

Consumption Tax Act 消費税法

  1. With respect to a business operator whose taxable sales in the base period for its taxable period are 10 million yen or less (excluding a qualified invoice issuer), notwithstanding Article 5, paragraph (1), the obligation to pay consumption tax is exempted for the taxable transfers, etc. of assets and specified taxable purchases conducted in Japan during that taxable period; provided, however, that this does not apply where otherwise provided for in this Act.

    事業者のうち、その課税期間に係る基準期間における課税売上高が千万円以下である者(適格請求書発行事業者を除く。)については、第五条第一項の規定にかかわらず、その課税期間中に国内において行つた課税資産の譲渡等及び特定課税仕入れにつき、消費税を納める義務を免除する。ただし、この法律に別段の定めがある場合は、この限りでない。

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Example question

How much of an estate is free of inheritance tax?

30 million yen plus 6 million yen for each heir. That amount is deducted from the total taxable value of the estate before the tax is worked out.

Article 15, paragraph (1)

Inheritance Tax Act 相続税法

  1. When calculating the total inheritance tax amount, the sum of 30,000,000 yen and the amount calculated by multiplying 6,000,000 yen by the number of heirs of the decedent (hereinafter referred to as the "basic deduction for the estate") is deducted from the total of the taxable values for inheritance tax (in the case where Article 19 applies, the amount deemed to be the taxable value for inheritance tax pursuant to that Article; the same applies from the following Article through Article 18 and in Article 19-2) of all persons who have acquired property by inheritance or bequest from the same decedent.

    相続税の総額を計算する場合においては、同一の被相続人から相続又は遺贈により財産を取得した全ての者に係る相続税の課税価格(第十九条の規定の適用がある場合には、同条の規定により相続税の課税価格とみなされた金額。次条から第十八条まで及び第十九条の二において同じ。)の合計額から、三千万円と六百万円に当該被相続人の相続人の数を乗じて算出した金額との合計額(以下「遺産に係る基礎控除額」という。)を控除する。

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