When acquiring a company with a history of losses, whether its loss carryforwards can offset future profits affects the purchase price and business plan. First, acquiring shares does not transfer the company's losses to the new shareholder. Because the same company continues to exist after the share transfer, the issue is whether it can continue deducting its own losses in calculating its taxable income.

A change in shareholders does not immediately eliminate the deduction. However, if the conditions in Article 57-2 of the Corporation Tax Act are met, loss carryforward deductions for earlier years cease to apply. Consider share transfers separately from succession to losses through a merger.

First, confirm the balance of usable losses

The carryforward period for blue-return losses is generally 10 years, but it is 9 years for losses arising in fiscal years beginning before April 1, 2018. A blue return must have been filed for the loss year, followed by continuous filing of final returns. For corporations other than qualifying SMEs and similar entities, the deduction is generally limited to 50% of income before the deduction. Even a corporation with capital of JPY100 million or less may be excluded from SME status if, for example, it is wholly controlled by a large corporation. Source: NTA: Carryforward Deduction for Losses Arising in Fiscal Years for Which a Blue Return Was Filed

An accumulated accounting deficit cannot simply be treated as a tax loss carryforward. For example, if accounting losses include nondeductible expenses, the tax loss amount differs. Check whether the seller's figures match the balance reported in tax returns. In acquisition due diligence, start with Schedule 7(1) of the tax return and verify the year of origin, amounts already deducted, and remaining balance. Review filing history and any tax-audit adjustments alongside supporting records. If the acquisition changes the characteristics of the parent company, revise the cash plan using the post-acquisition deduction limit.

Assess restrictions after a shareholder change in three stages

Read Article 57-2 in this order: (1) Has a specified control relationship arisen? (2) Is the target a corporation with losses or other specified attributes? (3) Has a triggering event occurred within the prescribed period? The existence of control alone is not enough to reach a conclusion.

A specified control relationship includes a relationship in which another person holds more than 50% of outstanding shares or equivalent interests, directly or indirectly. The NTA describes the rules as applying to corporations with losses or other specified amounts that have become subject to such control. Determine eligibility under the statutory definition, rather than solely from the loss balance on the tax return. Source: NTA: “Corporations Claiming Carryforward Deductions,” in the Guidance Cited Above

In practice, you need an ownership chart including indirect holdings and its history of changes, not just the register of direct shareholders. Confirm when the relationship actually arose, such as the share acquisition closing date, rather than relying solely on the date stated in the agreement.

Watch for business restarts and major changes

An example given by the NTA is discontinuing all existing business while obtaining borrowings or similar funding exceeding approximately 5 times the scale of that former business. Apply the statutory conditions together, rather than considering business cessation or the borrowing amount in isolation. Source: NTA: “Corporations Claiming Carryforward Deductions,” in the Guidance Cited Above

Do not substitute the company's total capital or net assets for “business scale” here. It must be checked using the statutory measures and calculation methods. This is also only a representative example. Falling outside it does not establish that no restriction applies. Organize plans for starting or changing business and for post-acquisition transactions, and review all triggering events under Article 57-2.

The NTA guidance refers to specified events occurring within 5 years of the specified control date. Check the actual control date and event date, rather than simplifying this to “5 fiscal year-ends after acquisition.” If a triggering event occurs, carryforward deductions for losses arising before the applicable fiscal year—the fiscal year containing that event—are unavailable from that fiscal year onward. It is also inaccurate to limit the affected losses to those arising before the acquisition. Source: NTA: “Corporations Claiming Carryforward Deductions,” in the Guidance Cited Above

If a merger is planned after acquisition, check separate restrictions on loss succession

If the target will be absorbed in a merger after the share acquisition, also review the succession rules in Article 57 of the Corporation Tax Act. Even a tax-qualified merger may face restrictions on losses that can be inherited, depending on the duration of control and joint-business requirements. Avoiding Article 57-2 restrictions alone does not guarantee that losses can be used after the merger. Source: NTA: Succession to Blue-Return Losses Where Share Ownership Relationships Have Changed

When evaluating an acquisition, confirm the loss balance and place the control date, former business circumstances, post-acquisition funding, planned business changes, and reorganizations on a single timeline. This helps identify the provisions requiring review. Before incorporating the entire loss carryforward balance into the acquisition price as tax savings, specify the years in which it can be used and the expected taxable income.

This article provides general information on corporate loss carryforwards. Applying it to a particular acquisition or reorganization requires checking the law at the transaction date and the specific facts.