In the case where a person has acquired property by inheritance (including a bequest by a decedent to an heir; the same applies hereinafter in this Article), if the decedent relating to that inheritance (referred to as the "second inheritance" in this Article) has acquired, by an inheritance that commenced within 10 years before the commencement of the second inheritance (referred to as the "first inheritance" in this Article), property (including property subject to the application of Article 21-9, paragraph (3) that was acquired by gift from the decedent relating to the first inheritance), for a person who has acquired property by inheritance from that decedent, the amount obtained by deducting, from the amount calculated pursuant to Article 15 through the preceding Article, the amount calculated by successively multiplying the amount equivalent to the amount of inheritance tax imposed on the property acquired by that decedent by the first inheritance (including property subject to the application of Article 21-9, paragraph (3) that was acquired by gift from the decedent relating to that first inheritance) (excluding the amounts of inheritance tax equivalent to delinquent tax, interest tax, penalty tax for understatement, penalty tax for failure to file and heavy penalty tax; the same applies in item (i)) by the proportions listed in the following items is the amount of inheritance tax to be paid.
相続（被相続人からの相続人に対する遺贈を含む。以下この条において同じ。）により財産を取得した場合において、当該相続（以下この条において「第二次相続」という。）に係る被相続人が第二次相続の開始前十年以内に開始した相続（以下この条において「第一次相続」という。）により財産（当該第一次相続に係る被相続人からの贈与により取得した第二十一条の九第三項の規定の適用を受けた財産を含む。）を取得したことがあるときは、当該被相続人から相続により財産を取得した者については、第十五条から前条までの規定により算出した金額から、当該被相続人が第一次相続により取得した財産（当該第一次相続に係る被相続人からの贈与により取得した第二十一条の九第三項の規定の適用を受けた財産を含む。）につき課せられた相続税額（延滞税、利子税、過少申告加算税、無申告加算税及び重加算税に相当する相続税額を除く。第一号において同じ。）に相当する金額に次の各号に掲げる割合を順次乗じて算出した金額を控除した金額をもつて、その納付すべき相続税額とする。
the proportion that the total value of the property (limited to the portion included in the taxable value for inheritance tax) acquired by those causes by all persons who have acquired property by inheritance or bequest (excluding a bequest by a decedent to an heir; the same applies in the following item) from the decedent relating to the second inheritance represents of the amount obtained by deducting the amount of inheritance tax relating to that property from the value of the property (limited to the portion included in the basis for calculating the taxable value for inheritance tax) acquired by that decedent by the first inheritance (including property subject to the application of Article 21-9, paragraph (3) that was acquired by gift from the decedent relating to that first inheritance) (where that proportion exceeds 100 percent, a proportion of 100 percent);
第二次相続に係る被相続人から相続又は遺贈（被相続人からの相続人に対する遺贈を除く。次号において同じ。）により財産を取得したすべての者がこれらの事由により取得した財産の価額（相続税の課税価格に算入される部分に限る。）の合計額の当該被相続人が第一次相続により取得した財産（当該第一次相続に係る被相続人からの贈与により取得した第二十一条の九第三項の規定の適用を受けた財産を含む。）の価額（相続税の課税価格計算の基礎に算入された部分に限る。）から当該財産に係る相続税額を控除した金額に対する割合（当該割合が百分の百を超える場合には、百分の百の割合）
the proportion that the value of the property (limited to the portion included in the taxable value for inheritance tax) acquired by inheritance from the decedent relating to the second inheritance represents of the total value of the property (limited to the portion included in the taxable value for inheritance tax) acquired by those causes by all persons who have acquired property by inheritance or bequest from the decedent relating to the second inheritance;
第二次相続に係る被相続人から相続により取得した財産の価額（相続税の課税価格に算入される部分に限る。）の第二次相続に係る被相続人から相続又は遺贈により財産を取得したすべての者がこれらの事由により取得した財産の価額（相続税の課税価格に算入される部分に限る。）の合計額に対する割合
the proportion to 10 years of the number of years obtained by deducting from 10 years the number of years corresponding to the period from the time of the commencement of the first inheritance to the time of the commencement of the second inheritance (where that number of years is less than one year, or has a fraction of less than one year, it is counted as one year).
第一次相続開始の時から第二次相続開始の時までの期間に相当する年数を十年から控除した年数（当該年数が一年未満であるとき又はこれに一年未満の端数があるときは、これを一年とする。）の十年に対する割合