Japan Qualified Invoice System 2026: A Guide for Foreign Firms

Japan’s qualified invoice system (適格請求書等保存方式, often called invoice seido) has been live since October 2023, but 2026 is the year it forces a decision for many foreign businesses. The rules that let a Japanese customer reclaim consumption tax on what they buy from you have tightened, the transitional relief for unregistered suppliers has been rescheduled, and the duty to collect the tax has started moving onto digital platforms. If your company sells into Japan, invoices Japanese customers, or runs a Japanese subsidiary, the invoice system now shapes whether your buyers can recover the 10% consumption tax they pay you, and that affects your price competitiveness directly.

This guide sets out what the system is, the four compliance duties a foreign business faces in 2026, and what changed in the FY2026 tax reform that was enacted in March 2026. It is written for executives and finance leads, not tax specialists, so it prioritises the decisions you own over procedural detail your accountant will handle.

What the Qualified Invoice System Is, and Why It Reaches Foreign Firms

Japan levies a consumption tax (JCT) at a standard rate of 10%, with a reduced 8% rate on food, non-alcoholic drink, and certain newspapers. The qualified invoice system is the mechanism that decides when a business buyer can credit the JCT it paid on a purchase against the JCT it owes on its sales, the same input-credit logic that European VAT uses. The framework is set out in the National Tax Agency’s invoice system guidance.

The registration number and the input tax credit

Under the system, a buyer can only claim an input tax credit if it holds a qualified invoice issued by a registered qualified invoice issuer (適格請求書発行事業者). A compliant invoice must carry the issuer’s registration number, which takes the form “T” followed by 13 digits. For a Japanese corporation that number mirrors the 13-digit Corporate Number assigned at incorporation, as explained in guidance on registering as a qualified invoice issuer. Without that number on your invoice, your Japanese customer cannot fully recover the tax.

What a compliant qualified invoice must contain

A qualified invoice is not simply your existing invoice with a number added. To support your customer’s input credit it must show a defined set of fields: the issuer’s name and registration number; the transaction date; a description of the goods or services, flagged where the reduced 8% rate applies; the total consideration separated by tax rate, with the applicable rate shown; the consumption tax amount for each rate band; and the recipient’s name. The rate-segregated breakdown is the field foreign businesses most often miss, because a single blended tax line does not meet the standard. Confirm your billing system, or your Japanese subsidiary’s, produces the rate-by-rate split before your first qualifying transaction.

Registered versus unregistered suppliers

The practical consequence is commercial rather than administrative. If you are not a registered issuer, a Japanese business customer buying from you generally cannot take a full input credit on the tax embedded in your price. That effectively makes your invoice more expensive than a registered competitor’s by up to the consumption tax amount. This is why registration, although voluntary, has become close to mandatory for any foreign supplier that wants to keep business-to-business customers in Japan, a point echoed by the EU-Japan Centre’s qualified invoice system overview.

The math makes the stakes concrete. Suppose you invoice a Japanese business customer ¥1,000,000 plus ¥100,000 in consumption tax. If you are a registered issuer, the customer reclaims that ¥100,000 in full, so their real cost is ¥1,000,000. If you are not registered, and the transitional credit for that period is 70%, the customer can only recover ¥70,000, leaving ¥30,000 of unrecoverable tax that lands on them. A registered competitor quoting the same headline price is, in effect, ¥30,000 cheaper to that buyer. As the transitional rate steps down over the following years, that gap widens toward the full ¥100,000. This is the pressure that pushes B2B suppliers to register even though the rules never strictly compel it.

The Four Compliance Duties Foreign Businesses Face in 2026

For a foreign company, the invoice system resolves into four distinct decisions. Treat them in order, because each one depends on the answer to the one before it.

1. Decide whether to register as a qualified invoice issuer

Registration is a choice, not an automatic obligation, and it carries a cost: once registered, you become a taxable person who must file and pay JCT in Japan even if your turnover would otherwise fall under the exemption threshold. That threshold matters to the decision. A business whose taxable sales in the base period stay below ¥10 million would ordinarily be a tax-exempt enterprise with no duty to charge or remit JCT. Registering as a qualified invoice issuer waives that exemption: you opt into the taxable system in exchange for being able to issue invoices your customers can credit. For a small foreign entrant, that trade is the crux of the decision.

Weigh it against who your customers are. If you sell business-to-business to Japanese companies that reclaim input tax, registering protects your price position, as the worked example above shows. If you sell only to consumers, or only to customers who cannot claim credits anyway, the benefit of registering shrinks and the compliance cost may outweigh it. Make this call deliberately rather than by default, because it sets up the next three duties.

2. Appoint a Japanese tax agent (nozei kanrinin)

A non-resident business with JCT obligations in Japan must appoint a Tax Agent, or Tax Administrator (納税管理人, nozei kanrinin): a resident individual or a Japan-based tax professional who receives correspondence from the tax office and handles your filings. You notify the tax office of the appointment using the Tax Agent Notification Form (納税管理人届出書). As guidance on consumption tax registration for foreign companies sets out, non-residents generally cannot complete registration through the online e-Tax route, because the digital ID it relies on assumes a local presence. In practice, foreign issuers register through their tax agent or by paper submission to the competent tax office. Line this up before you register, not after.

The tax agent is more than a mailing address. That person or firm files your consumption tax returns, fields questions and audit correspondence from the tax office, and in practice becomes your operational link to the Japanese tax authorities. Because the appointment has to be in place for the registration to run cleanly, and because a competent agent needs time to review your invoicing and set up filings, treat the appointment as a lead item with a few weeks of runway, not a same-week formality. Choosing an agent who works comfortably in English and understands your billing systems will save far more than it costs over the first filing cycles.

3. Track the extended transitional credit for unregistered suppliers

The invoice system also changes how you buy, not just how you sell. When your Japanese entity purchases from a supplier that is not a registered issuer, you normally get no input credit at all. A transitional measure softens that by allowing a partial credit for a limited period, and the FY2026 tax reform rescheduled it. The current, corrected schedule runs as follows:

• 80% deductible: 1 October 2023 to 30 September 2026
• 70% deductible: 1 October 2026 to 30 September 2028
• 50% deductible: 1 October 2028 to 30 September 2030
• 30% deductible: 1 October 2030 to 30 September 2031
• 0% (no credit): from 1 October 2031

Note the correction that matters for planning: the step to 50% was originally scheduled for October 2026. The FY2026 reform pushed it back, so from October 2026 the rate is 70%, not 50%. This schedule is set out in the National Tax Agency’s FY2026 tax reform briefing on the invoice system and in the Ministry of Finance outline of the FY2026 tax reform. If your procurement models still assume a 50% cliff in October 2026, they are two years early.

4. Know when platform taxation moves the duty off you

If you reach Japanese consumers through a large online platform rather than invoicing them directly, the tax duty may not sit with you at all. The services in scope are the electronically supplied services Japan has taxed at destination since 2015: software and SaaS subscriptions, e-books, music and video streaming, online advertising distribution, cloud services, and similar digital products delivered to customers in Japan. What the 2025 rule changed is not whether these are taxed, but who accounts for the tax when the sale runs through a large marketplace. Since 1 April 2025, Japan’s platform taxation regime treats a specified platform operator as the deemed supplier for business-to-consumer digital services delivered through its platform by foreign businesses. The platform, not the foreign seller, files and pays the 10% JCT, as set out in the National Tax Agency’s platform taxation guidance. A platform falls into this category when relevant supplies through it exceed ¥5 billion in a taxable year, and the NTA designates and publishes the operators that qualify. Where this applies, the non-resident provider does not issue qualified invoices for those transactions, a point clarified by BDO’s analysis of the JCT changes affecting nonresident sellers.

What Changed in the 2026 Tax Reform

The FY2026 tax reform outline was released in December 2025 and enacted by the Diet on 31 March 2026. Three of its consumption-tax measures reshape the invoice system for foreign businesses.

The phase-out was extended, not accelerated

The headline for buyers is the two-year extension of the transitional credit described above. Rather than the relief for unregistered suppliers collapsing faster, it now tapers more gradually and ends in September 2031. The extension reflects continued policy concern about the burden the invoice system places on Japan’s large population of small tax-exempt businesses, many of which have resisted registering because doing so pulls them into the taxable system for the first time. For a foreign company that buys from smaller Japanese vendors, that dynamic is the point: a meaningful share of your suppliers may stay unregistered for years, so the transitional credit is not an edge case but a standing feature of your cost base. The extra runway is worth planning around, because the incentive to force supplier registration or renegotiate pricing is real but less abrupt than the pre-reform schedule implied. Use the time to segment suppliers by how much unrecoverable tax each one represents, and concentrate the hard conversations on the few that move the numbers.

The ¥100 million single-supplier cap

The reform tightened a limit that already existed, lowering the per-supplier ceiling from ¥1 billion to ¥100 million. From tax periods starting on or after 1 October 2026, where purchases from a single unregistered supplier exceed ¥100 million in one taxable period, the portion above that ceiling cannot use the transitional credit at all. For most companies this is immaterial, but for a business with a high-value, concentrated relationship with one unregistered vendor, it converts a manageable leakage into a hard stop. Identify any supplier relationship that could cross that line and address registration well ahead of October 2026.

Platform taxation expands to goods in 2028

Platform taxation began with digital services in 2025. The FY2026 reform extends the same deemed-supplier logic to sales of goods through online marketplaces from 1 April 2028, with platform operators whose intermediary sales exceed ¥5 billion becoming liable to file and pay JCT on behalf of the sellers that use them. If your route into Japan is a marketplace rather than your own storefront, map now which of your flows will shift to the platform in 2028 and which will stay with you.

Where Foreign Businesses Get Caught Out

Most invoice-system problems for foreign companies trace back to a handful of recurring errors. Each is avoidable with a check rather than a scramble.

• Assuming registration is automatic. Registering as a qualified invoice issuer is a separate, deliberate application. Being registered for consumption tax generally, or simply having a Japanese entity, does not make you a qualified issuer. If your invoices lack a “T” number, your customers are quietly losing credits.
• Issuing invoices that fail the format test. A blended tax line, a missing registration number, or no rate-by-rate breakdown all disqualify an invoice. The document can look professional and still fail the standard, so validate the fields, not the appearance.
• Registering before appointing a tax agent. For a non-resident, the sequence is agent first, then registration. Reversing it stalls the application.
• Planning around the old phase-out dates. Finance models built before the FY2026 reform often still assume the transitional credit drops to 50% in October 2026. It does not: it is 70% from that date. Acting on the stale figure leads to mispriced supplier negotiations.
• Overlooking the platform shift. A seller working through a designated marketplace may be accounting for tax the platform is now obliged to handle, or failing to account for tax the platform does not cover. Confirm which transactions sit where.

What to Do Now

Translate the four duties into action, sequenced by deadline pressure. The October 2026 changes are the near-term forcing function, so anchor the plan to that date and work backward:

• Confirm your registration status and your customers’ needs. If you sell B2B into Japan and are not a registered issuer, decide on registration this quarter, not next year. Your buyers’ ability to reclaim tax is a live sales issue.
• Appoint a tax agent before you register. A non-resident cannot complete the process cleanly without a nozei kanrinin in place, so start the appointment first.
• Reset procurement assumptions to the 70% figure. Update any model, contract, or budget that still assumes the credit drops to 50% in October 2026. The correct rate from that date is 70%.
• Screen for the ¥100 million cap. Flag any single unregistered supplier you may pay more than ¥100 million in a tax period, and resolve their registration status before October 2026.
• Map your platform exposure. If you sell digital services or, from 2028, goods through large Japanese marketplaces, confirm which transactions the platform will account for and adjust your own filings accordingly.

Key Takeaways

• Registration is voluntary but commercially decisive: without a “T” + 13-digit number on your invoice, B2B customers in Japan cannot fully reclaim the 10% consumption tax you charge.
• Non-residents must appoint a tax agent (nozei kanrinin) and generally register on paper or through that agent, not online.
• The transitional credit is now 70% from October 2026, not 50%: the FY2026 reform extended the phase-out to September 2031.
• A tightened ¥100 million single-supplier cap, down from ¥1 billion on the transitional credit applies from October 2026.
• Platform taxation shifts JCT duties to large operators: digital services since April 2025, and goods from April 2028, for platforms above the ¥5 billion threshold.

What to Read Next

• Japan’s tariff rates in 2026, for the customs-duty side of the cost picture.
• Japan Market Entry: the complete guide for 2026, for how consumption-tax registration fits the wider entry sequence.
• Our Japan market entry services, for the Japanese-language work around a registration your tax adviser files.