In the case falling under paragraph (1) of the preceding Article, if a taxpayer conceals or disguises all or part of the facts that are to be the basis for calculating the amount of the tax base, and submits a return or the written request for reassessment prescribed in Article 20-9-3, paragraph (3) (referred to as the "written request for reassessment" in the following paragraph) based on the facts so concealed or disguised, the mayor of the municipality must, as provided by Cabinet Order, collect, in lieu of the amount of additional charge for understatement prescribed in paragraph (1) of the preceding Article, an amount of substantial additional charge equivalent to the amount calculated by multiplying the tax deficiency resulting from the reassessment that is to be the basis for that calculation by a rate of 35 percent.
前条第一項の規定に該当する場合において、納税者が課税標準額の計算の基礎となるべき事実の全部又は一部を隠蔽し、又は仮装し、かつ、その隠蔽し、又は仮装した事実に基づいて申告書又は第二十条の九の三第三項に規定する更正請求書（次項において「更正請求書」という。）を提出したときは、市町村長は、政令で定めるところにより、前条第一項に規定する過少申告加算金額に代えて、その計算の基礎となるべき更正による不足税額に百分の三十五の割合を乗じて計算した金額に相当する重加算金額を徴収しなければならない。
In the case falling under paragraph (2) of the preceding Article (excluding the case where the proviso to that paragraph applies), if a taxpayer conceals or disguises all or part of the facts that are to be the basis for calculating the amount of the tax base, and, based on the facts so concealed or disguised, does not submit a return by the deadline for filing the return, or submits a return after the deadline for filing the return or submits a written request for reassessment, the mayor of the municipality must, in lieu of the amount of additional charge for failure to file prescribed in that paragraph, collect an amount of substantial additional charge equivalent to the amount calculated by multiplying the tax amount that is to be the basis for that calculation by a rate of 40 percent.
In the case falling under the preceding two paragraphs, if any of the following items (item (i) in the case falling under paragraph (1)) applies, the amount of substantial additional charge prescribed in the preceding two paragraphs is, notwithstanding those provisions, to be the amount obtained by adding, to the amount calculated under those provisions, the amount calculated by multiplying, by a rate of 10 percent, the tax deficiency resulting from the reassessment that is to be the basis for calculation prescribed in paragraph (1) in the case falling under paragraph (1), or the tax amount that is to be the basis for calculation prescribed in the preceding paragraph in the case falling under the preceding paragraph, respectively.
where, during the period up to the day five years before the day preceding the day on which, based on the concealed or disguised facts that are to be the basis for calculating the amount of the tax base prescribed in the preceding two paragraphs, the return was filed after the deadline for filing the return, or a reassessment or determination under Article 533, paragraphs (1) through (3) was made, an additional charge for failure to file, etc. has been collected with respect to the mineral product tax;
前二項に規定する課税標準額の計算の基礎となるべき事実で隠蔽し、又は仮装されたものに基づき申告書の提出期限後のその提出又は第五百三十三条第一項から第三項までの規定による更正若しくは決定があつた日の前日から起算して五年前の日までの間に、鉱産税について、不申告加算金等を徴収されたことがある場合
where a specified additional charge for failure to file, etc. has been collected with respect to the mineral product tax for which tax liability arose in the year preceding, and the year before the year preceding, the year containing the day on which tax liability arose for the mineral product tax relating to the return filed after the deadline for filing the return, or the reassessment or determination under Article 533, paragraphs (1) through (3), or where it is found that a determination should be made regarding a specified additional charge for failure to file, etc.
申告書の提出期限後のその提出又は第五百三十三条第一項から第三項までの規定による更正若しくは決定に係る鉱産税の納税義務が成立した日の属する年の前年及び前々年に納税義務が成立した鉱産税について、特定不申告加算金等を徴収されたことがあり、又は特定不申告加算金等に係る決定をすべきと認める場合
In the case falling under the preceding two paragraphs, if there are grounds prescribed in paragraph (6) of the preceding Article with respect to the submission of the return, the mayor of the municipality does not collect the amount of substantial additional charge calculated on the basis of the tax amount relating to that return.
When the mayor of the municipality has determined the amount of substantial additional charge to be collected under paragraph (1) or (2), the mayor must, without delay, notify the taxpayer.
略称規定第五百三十六条第五項第一号・この規定及び第五百三十七条第三項第一号の中だけ
…鉱産税について、不申告加算金（次項の規定の適用があるものを除く。同号において同じ。）又は重加算金（次条第三項第一号において「不申告加算金等」という。）を徴収されたことがある場合
わかりやすく言うと
鉱産税について徴収された不申告加算金または重加算金のことです。不申告加算金は申告書などの期限後提出や決定などの際に課されるもの（決定を予知せずに期限後に提出した場合のものを除きます）、重加算金は事実を隠したり偽ったりした場合に課されるものです。
略称規定第五百三十六条第五項第二号・この号及び第五百三十七条第三項第二号の中だけ
…不申告加算金若しくは重加算金（次条第二項の規定の適用があるものに限る。）（以下この号及び次条第三項第二号において「特定不申告加算金等」という。）を徴収されたことがあり、又は特定不申告加算金等に係る決定をすべきと認める場合
わかりやすく言うと
鉱産税について徴収される不申告加算金、または事実を隠したり偽ったりしたことにより不申告加算金に代えて徴収される重加算金（第五百三十七条第二項）のことです。
略称規定第五百三十七条第一項・この規定及び第五百三十七条第二項の中だけ
…納税者が課税標準額の計算の基礎となるべき事実の全部又は一部を隠蔽し、又は仮装し、かつ、その隠蔽し、又は仮装した事実に基づいて申告書又は第二十条の九の三第三項に規定する更正請求書（次項において「更正請求書」という。）を提出したときは…
わかりやすく言うと
申告書を提出した人が、申告した課税標準や税額などを正しく直す更正を地方団体の長に請求するときに、更正後の課税標準や税額、請求の理由、請求に至った事情の詳細などを書いて地方団体の長に提出する書類のことです（第二十条の九の三第三項）。