確定申告書を提出する居住者のその年の前年以前三年内の各年（その年分の所得税につき青色申告書を提出している年に限る。）において生じた純損失の金額（この項の規定により前年以前において控除されたもの及び第百四十二条第二項（純損失の繰戻しによる還付）の規定により還付を受けるべき金額の計算の基礎となつたものを除く。）がある場合には、当該純損失の金額に相当する金額は、政令で定めるところにより、当該確定申告書に係る年分の総所得金額、退職所得金額又は山林所得金額の計算上控除する。
If a Resident filing a Tax Return has had a Net Loss in any of the three years prior to the relevant year (but only one in which the Resident filed a Blue Return for the year's income taxes) (this Net Loss excludes any amount deducted in or before the previous year pursuant to the provisions of this paragraph and any amount used as the basis for calculating the amount to be refunded pursuant to the provisions of Article 142, paragraph (2) (Issuance of Refunds Based on Carryback of Net Loss)), the equivalent of the Net Loss is applied as a deduction pursuant to Cabinet Order when the amount of gross income, retirement income, or timber income for the year of the Tax Return is calculated.
確定申告書を提出する居住者のその年の前年以前三年内の各年において生じた純損失の金額（前項の規定の適用を受けるもの及び第百四十二条第二項の規定により還付を受けるべき金額の計算の基礎となつたものを除く。）のうち、当該各年において生じた次に掲げる損失の金額に係るもので政令で定めるものがあるときは、当該政令で定める純損失の金額に相当する金額は、政令で定めるところにより、当該申告書に係る年分の総所得金額、退職所得金額又は山林所得金額の計算上控除する。
If part of the Net Loss of a Resident filing a Tax Return in any of the three years prior to the relevant year (such a Net Loss excludes any amount that is subject to the provisions of the preceding paragraph and any amount used as the basis for calculating the amount to be refunded pursuant to the provisions of Article 142, paragraph (2)) is an amount of loss incurred in any of those years which is as follows and which is as prescribed by Cabinet Order, the amount that Cabinet Order prescribes as the equivalent of the Net Loss is applied as a deduction pursuant to Cabinet Order when the amount of gross income, retirement income, or timber income for the year of the Tax Return is calculated.
変動所得の金額の計算上生じた損失の金額
the amount of any loss resulting when the amount of Fluctuating Income is calculated;
被災事業用資産の損失の金額
the amount of any disaster-related loss on business assets.
前項第二号に掲げる被災事業用資産の損失の金額とは、棚卸資産又は第五十一条第一項若しくは第三項（資産損失の必要経費算入）に規定する資産の災害による損失の金額（その災害に関連するやむを得ない支出で政令で定めるものの金額を含むものとし、保険金、損害賠償金その他これらに類するものにより補塡される部分の金額を除く。）で前項第一号に掲げる損失の金額に該当しないものをいう。
The amount of a disaster-related loss on business assets as set forth in item (ii) of the preceding paragraph means the amount of a loss of Inventory or assets as prescribed in Article 51, paragraph (1) or paragraph (3) (Inclusion of Losses on Assets in Necessary Expenses) (including the amount of any unavoidable Disaster-related expenses prescribed by Cabinet Order and other than any part of the loss covered by insurance benefits, compensation for damage, or anything similar to these) due to Disaster which does not fall under the category of an amount of loss set forth in item (i) of the preceding paragraph.
The provisions of paragraph (1) and paragraph (2) apply only if the Resident prescribed therein files a Tax Return for income taxes in the year in which the Net Loss arises and if the Resident continues to file a Tax Return thereafter.
A deduction under paragraph (1) or paragraph (2) is referred to as a deduction for carryover of net loss.