Japan Qualified Invoice System (QIS): Complete Compliance Guide

Japan's Qualified Invoice System (適格請求書保存方式, or tekikaku seikyusho) is the invoicing framework that took effect on October 1, 2023, replacing the prior "category-specific recording invoice" system that had been in place since the 2019 consumption tax rate increase. Under QIS, only invoices issued by registered Qualified Invoice Issuers (適格請求書発行事業者) allow buyers to claim input tax credits on Japan's consumption tax. If a supplier is not registered, the buyer progressively loses the ability to deduct the consumption tax they paid on that purchase.

The stakes are substantial. Japan's consumption tax is now the country's largest source of central government tax revenue, accounting for 33.3 percent of total general account revenue in fiscal year 2024 and surpassing both personal income tax and corporate income tax, according to the Japan Center for Economic Research. QIS is the enforcement mechanism for this revenue stream, and the National Tax Agency treats compliance accordingly.

Every qualified invoice must contain six mandatory elements to be valid for input tax credit purposes:

Issuer name and registration number — The T-number follows a fixed format: the letter T followed by a 13-digit corporate number (法人番号). For example, T1234567890123.
Transaction date — The date the goods were delivered or services rendered.
Transaction description — A line-item description of the transaction that must explicitly flag any items subject to the reduced 8% tax rate.
Total amount per tax rate category — Either tax-exclusive or tax-inclusive totals, broken out by the applicable tax rate (standard 10% and reduced 8%), with the rate clearly indicated.
Consumption tax amount per tax rate — The calculated tax for each rate category, which must be expressed as whole JPY amounts. Rounding is performed on the tax rate category total, not line by line.
Recipient name — The name of the buyer or business receiving the invoice.

Missing any one of these elements can disqualify an invoice from supporting an input tax credit claim. The recipient name requirement, in particular, catches some foreign businesses off guard since not all invoicing systems outside Japan include it by default. This guide covers the full QIS compliance framework in one reference: T-number verification, dual-rate tax formatting, the updated 2026 transitional credit schedule, cross-border registration, penalties, and small business relief measures.

Registration uptake has been broad. Approximately 3.78 million businesses have registered as Qualified Invoice Issuers, with corporate registration rates exceeding 97%. For finance teams dealing with Japanese suppliers, the practical implication is clear: most established corporate vendors will already be registered, but verification is still necessary for every new supplier relationship and for smaller vendors where registration is not guaranteed.

T-Number Verification and the NTA Registration Portal

Claiming input tax credits under the Qualified Invoice System depends on one critical prerequisite: confirming that your supplier is a registered Qualified Invoice Issuer. The mechanism for this verification is the T-number, and the National Tax Agency (NTA) provides a free public portal to check it. For finance teams processing invoices from Japanese suppliers, building a reliable T-number verification workflow is not optional.

Understanding the T-Number Format

Every registered Qualified Invoice Issuer receives a registration number consisting of the prefix T followed by a 13-digit number. For corporations (kabushiki kaisha, godo kaisha, etc.), this 13-digit portion is the entity's existing corporate number (法人番号), the same number used across Japanese government systems. This makes cross-referencing straightforward for corporate suppliers.

For sole proprietors and individuals who lack a corporate number, the NTA assigns a unique 13-digit number at the time of QIS registration. This assigned number is used exclusively for the invoice system and does not correspond to any other public identifier, which means verification through the NTA portal becomes the only practical way to confirm these registrations.

A properly formatted T-number on an invoice looks like this: T1234567890123. Any deviation from the T + 13-digit pattern should be flagged immediately during invoice review.

Using the NTA Public Verification Portal

The NTA maintains a publicly accessible verification portal at invoice-kohyo.nta.go.jp where anyone can confirm a supplier's registration status without authentication or fees. The portal accepts searches by:

Registration number (the full T-number)
Business name (partial or full)
Other criteria including address details

When you query a T-number, the portal returns the business name, registration date, registration number, and crucially, whether the registration is currently active. This last detail matters because a supplier who was registered six months ago may have since deregistered or had their registration revoked. Stale verification data creates real compliance risk.

The Practical Verification Workflow

For each invoice received from a Japanese supplier, the verification process follows a clear sequence:

Locate the T-number on the invoice (typically printed near the supplier's name and address block)
Enter the number into the NTA portal at invoice-kohyo.nta.go.jp
Confirm the returned business name matches the supplier on the invoice
Check that the registration status is active as of the invoice date
Document the verification for audit purposes before processing the input tax credit

If the T-number is missing, malformed, or returns an inactive registration, the invoice does not qualify as a Qualified Invoice, and the full input tax credit cannot be claimed.

The Volume Problem

This manual verification workflow is manageable when you process a handful of Japanese invoices per month. It becomes a serious bottleneck at scale. Organizations processing hundreds of Japanese invoices monthly face a compounding problem: each invoice requires a portal lookup, name matching, status confirmation, and documentation. Staff performing these checks manually are doing repetitive, error-prone work that directly impacts tax credit recovery.

The challenge intensifies for multinational finance teams who may not read Japanese fluently, making it harder to locate T-numbers on invoices or match returned business names against supplier records. Rather than manual checking, teams processing Japanese invoices at volume benefit from automated invoice data extraction for Japanese documents that can pull T-numbers from each document in a batch, flag invoices where the number is missing or malformed, and output the results alongside other invoice data in a structured spreadsheet. The extraction handles Japanese scripts natively, giving your team a verification-ready dataset instead of a manual checklist.

T-Number Verification in a Multi-Jurisdiction Context

Japan's T-number verification requirement is not unique in principle. Finance teams operating across Asia-Pacific or Europe face parallel challenges with different tax identification formats in each country. Germany, for instance, requires both a Steuernummer and a USt-IdNr on invoices depending on the transaction type. Understanding how tax identification numbers work on German invoices highlights how each jurisdiction has its own format, validation rules, and verification infrastructure. Teams expanding from Japan into Korea should also review South Korea's Hometax invoice requirements and correction rules, since the validation checkpoints sit in a different government portal and follow different issuance timing rules. If Taiwan is also in scope, review how Taiwan eGUI requirements differ across B2B, B2C, and cloud invoices so buyer identifiers and issuance timing are not treated like Japan's T-number workflow. The common thread is that tax ID verification is now a prerequisite for input tax credit recovery in an increasing number of countries, and organizations managing cross-border supplier relationships need systematic processes rather than ad hoc manual checks for each jurisdiction.

Dual Consumption Tax Rates and Invoice Formatting Rules

Japan's consumption tax operates on a dual-rate structure introduced in October 2019, and every qualified invoice must reflect this split with precision. The standard rate is 10%, applied to the vast majority of goods and services. The reduced rate is 8%, reserved for a narrow set of everyday essentials. Both rates are composite: the standard rate comprises 7.8% national tax plus 2.2% local consumption tax, while the reduced rate breaks down to 6.24% national plus 1.76% local.

The reduced rate applies to two categories only: food and non-alcoholic beverages intended for takeout, and newspaper subscriptions with a delivery frequency of at least twice per week. Everything else falls under the standard 10% rate.

The Eat-In Versus Takeout Distinction

One of the more unusual features of Japan's consumption tax is how it treats identical food items differently based on where they are consumed. A bento box purchased for takeout is taxed at 8%. The same bento box eaten on the premises of the shop that sold it is taxed at 10%. This distinction has no parallel in most other consumption tax jurisdictions and creates real classification challenges for businesses that offer both dine-in and takeaway options. For companies processing invoices from Japanese food service suppliers, this means the tax rate on a single product line can vary depending on context that may not be immediately obvious from the invoice description alone.

Segregation by Tax Rate on Qualified Invoices

A qualified invoice under the QIS must do more than show a total consumption tax amount. It must segregate the taxable amounts by rate category and display the consumption tax calculated for each category separately. In practice, this means every compliant invoice contains at least:

The sum of items subject to the 8% reduced rate, with the corresponding tax amount
The sum of items subject to the 10% standard rate, with the corresponding tax amount

This segregation requirement is what makes QIS invoices structurally different from the pre-reform format. An invoice that lumps all items together and shows a single blended tax figure does not qualify, regardless of whether the underlying math is correct.

The Fractional Yen Rounding Rule

Perhaps the most technically demanding formatting requirement involves how fractional yen are handled. Under the QIS rules, fractional yen amounts arising from consumption tax calculations must be rounded once per tax rate category per invoice. Rounding per individual line item is not permitted.

This distinction matters more than it might appear. When each line item is rounded independently, rounding errors accumulate across the invoice. When rounding is performed once on the aggregated tax amount per rate category, the result can differ by several yen. Multiply that across thousands of invoices per month, and the variance becomes material.

Japanese businesses collectively spent significant resources modifying their invoicing and accounting systems ahead of the October 2023 launch specifically to comply with this single rule. Any automated invoice processing system handling QIS documents must replicate this per-rate-category rounding behavior exactly, or the tax amounts it extracts will not match the amounts the issuer reported to the National Tax Agency.

The three accepted rounding methods are truncation (cutting off the fractional amount), rounding up, or standard rounding (rounding to the nearest yen). The issuer chooses one method and applies it consistently, but the buyer's system must be able to verify the result regardless of which method was used.

Non-Taxed Categories and Their Effect on Credit Calculations

Not all transactions on a Japanese invoice carry consumption tax. Three categories fall outside the standard and reduced rates:

Fukazei refers to transactions outside the scope of consumption tax entirely, such as salaries, dividends, and certain insurance payouts
Hikazei covers items exempt from consumption tax, including medical services, educational tuition, and residential rent
Menzei applies to zero-rated transactions, most commonly export sales

These categories do not generate consumption tax on the invoice, but they are far from irrelevant to compliance. They factor directly into the taxable sales ratio, which determines what proportion of input tax a business can claim as a credit. A company with substantial exempt or out-of-scope revenue will find its creditable input tax reduced proportionally. Accurate classification of these non-taxed categories on incoming invoices is therefore essential for calculating the correct input tax credit under the QIS framework.

Updated Transitional Credit Schedule After the 2026 Tax Reform

The transitional credit schedule is the single most financially significant QIS provision for companies purchasing from unregistered suppliers. It determines how much input tax credit a buyer can still claim on purchases from vendors who have not obtained Qualified Invoice Issuer status. Finance teams working from older English-language references are likely operating with outdated figures, because Japan's 2026 tax reform materially altered the original phase-down timeline.

Under the original schedule announced at QIS launch, credits were set to drop in three steep steps: 80%, then 50%, then zero. The 2026 reform softened that trajectory by inserting additional intermediate steps, giving businesses a longer runway to transition supplier relationships or renegotiate terms.

The current schedule, reflecting all 2026 tax reform amendments, is as follows:

Period	Input Tax Credit on Non-QII Purchases
October 2023 – September 2026	80%
October 2026 – September 2028	70%
October 2028 – September 2030	50%
October 2030 – September 2031	30%
October 2031 onward	0%

The most notable revision is the October 2026 to September 2028 period, where the claimable credit was raised from the originally planned 50% to 70%. This change acknowledges that many small suppliers, particularly sole proprietors and micro-businesses, have been slower to register than the government projected. The revised rate provides additional adjustment time before credits drop below the halfway mark.

What Changed Beyond the Credit Percentages

The 2026 reform also reduced the annual purchase cap per tax-exempt supplier. Previously, buyers could claim transitional credits on up to JPY 1 billion in purchases from any single unregistered vendor. Starting October 2026, that ceiling drops to JPY 100 million. For companies with large procurement volumes concentrated among a few unregistered suppliers, this cap reduction may bite harder than the percentage change itself.

Additionally, the reform introduced a new obligation requiring sellers to collect JCT on cross-border mail-order goods valued at 10,000 yen or less, closing a gap that had allowed low-value imports to bypass the consumption tax framework entirely.

Practical Impact on AP Workflows

These schedule changes have direct implications for accounts payable calculations and vendor management strategy. Finance teams need to maintain clear records of which suppliers hold QII registration and which do not, because the credit percentage applied to each invoice depends entirely on the seller's registration status at the time of the transaction.

The financial arithmetic shifts progressively against buyers who rely on unregistered suppliers. At 80% credit, the effective cost penalty for purchasing from a non-QII vendor on a 10% JCT transaction is just 2% of the taxable amount. At 50%, that penalty rises to 5%. Once credits reach zero in October 2031, the buyer absorbs the full 10% as an unrecoverable cost. For procurement categories where unregistered suppliers represent a meaningful share of spend, this phase-down creates a compounding margin pressure that finance teams should model now rather than react to later.

Simplified Invoices and Small Business Relief Measures

Not every transaction under the QIS requires a full qualified invoice. Japanese tax law provides a reduced-requirement variant called the Simplified Qualified Invoice (適格簡易請求書), along with several relief measures designed to ease the compliance burden on smaller businesses. Most English-language Japan QIS guides either skim these provisions or skip them entirely, yet they directly affect how multinational finance teams process invoices from Japanese retail vendors and small suppliers.

Simplified Qualified Invoices

A Simplified Qualified Invoice omits the recipient's name and requires either the consumption tax amount or the applicable tax rate, but not necessarily both. This makes it practical for high-volume, customer-facing transactions where identifying each buyer is impractical.

The following business categories are eligible to issue simplified invoices:

Retail businesses
Food and beverage establishments
Photography services
Travel agencies
Taxi operators
Parking facilities
Other businesses that serve unspecified or numerous customers in a similar capacity

For finance teams receiving these documents from Japanese vendors, the key difference is straightforward: a simplified qualified invoice is still a valid QIS-compliant document for claiming input tax credits, even though it carries less detail than the standard version. When processing invoices from Japanese retail or food service suppliers, expect this format rather than a full qualified invoice.

The 2-Wari Tokurei Small Business Relief

One of the most consequential provisions for small Japanese suppliers is the 2-wari tokurei. This relief measure targets businesses that were previously tax-exempt (annual taxable sales under 10 million yen) but voluntarily registered as Qualified Invoice Issuers to retain their business relationships under the new system.

Rather than owing the full consumption tax collected on sales, these newly registered businesses pay only a fraction:

October 2023 through September 2026: liability is limited to 20% of consumption tax on sales
Fiscal years 2027 and 2028: liability increases to 30%

No prior notification to the tax authority is required. The business simply elects the relief at the time of filing its tax return. This means finance teams working with small Japanese suppliers should understand that those vendors may be operating under significantly reduced tax obligations during this transitional window, which can affect pricing discussions and cost structures.

Simplified Taxation System

Separately from the 2-wari tokurei, Japan maintains the Simplified Taxation System (簡易課税制度) for businesses with annual taxable sales under 50 million yen. Under this regime, input tax is calculated as a deemed percentage of output tax based on industry classification, ranging from 40% to 90% depending on the business type. Wholesale businesses receive the highest deemed input rate at 90%, while service industries receive lower rates.

The practical effect is that qualifying businesses do not need to track actual input tax on every individual purchase. They calculate their tax liability using the fixed percentage for their industry category instead. For multinational companies, this matters because a Japanese supplier using simplified taxation will not be as concerned with collecting qualified invoices from its own vendors, though it must still issue them to its customers.

Transactions Exempt from the Invoice Requirement

Certain categories of transactions are entirely exempt from the qualified invoice requirement. Buyers can claim input tax credits for these purchases without holding a QIS-compliant document, provided they maintain appropriate books and records:

Public transportation fares under 30,000 yen (trains, buses, ships)
Vending machine and automated service transactions under 30,000 yen
Food products sold through wholesale markets via commission agents
Agricultural, forestry, and marine products sold through cooperatives
Postal services (stamps and related charges)

These exemptions are particularly relevant for companies processing high volumes of small-value Japanese transactions. Expense reports containing train fares or vending machine purchases, for example, do not require a qualified invoice for the associated input tax credit to be valid.

Cross-Border Registration and Reverse Charge Rules

Foreign companies doing business in Japan face a threshold question under the QIS: does your company need to register as a Qualified Invoice Issuer, or does the reverse charge mechanism handle the tax obligation instead? The answer depends on the type of transaction, the nature of the buyer, and whether your company has a physical presence in Japan.

Foreign Company Registration Process

Non-resident businesses that want to issue qualified invoices must apply for QII registration through a paper-based process. The electronic application route available to domestic businesses requires a Japanese digital ID (My Number Card), which foreign entities cannot obtain. The key requirements:

Tax agent appointment. Companies without a physical presence in Japan must designate a tax agent (税務代理人) to act on their behalf with the National Tax Agency. This agent handles filing obligations, correspondence, and compliance matters.
Paper application. Submit the registration application to the relevant tax office by mail. Processing typically takes four to eight weeks, though timelines can extend during peak filing periods.
Consumption tax registration. QII registration presupposes that the applicant is already a registered consumption tax taxpayer. Foreign companies not yet registered for JCT must complete that process first or simultaneously.

This registration path is most relevant for foreign companies that sell physical goods or provide services directly to Japanese businesses and want those buyers to claim full input tax credits on their purchases.

B2B Digital Services and the Reverse Charge

Since October 2015, Japan has applied a reverse charge mechanism to cross-border B2B digital services. When a foreign supplier provides digital services (cloud software, streaming content, online advertising, digital consulting) to a Japanese business customer, the Japanese buyer self-assesses and remits the consumption tax. The foreign supplier bears no JCT collection obligation on these transactions.

Critically, this means the foreign digital services provider does not need QII registration for B2B sales. The Japanese buyer records the tax under the reverse charge rules and claims the input credit through their own returns, independent of whether the foreign supplier holds a T-number.

B2C Digital Services: A Different Obligation

The calculus changes for foreign companies selling digital services directly to Japanese consumers or to consumer-facing businesses. If annual Japan-sourced sales exceed 10 million yen, the foreign supplier must register for consumption tax. To issue qualified invoices that allow business purchasers to claim full input credits, QII registration is also required.

This distinction matters for multinational companies operating across APAC, where each jurisdiction imposes its own invoicing and compliance framework. Companies already navigating cross-border invoicing requirements between Hong Kong and mainland China will recognize the pattern: digital services face different rules than physical goods, and B2B transactions often shift the tax obligation to the buyer.

2026 Reform: Cross-Border Goods Threshold

The 2026 tax reform introduces a new requirement for cross-border physical goods. Sellers will be required to collect JCT on mail-order goods valued at 10,000 yen or less, closing a de minimis exemption that previously allowed low-value imports to enter Japan without consumption tax. Foreign e-commerce sellers shipping goods to Japan should prepare for this expanded collection obligation.

Practical Reality for Multinational AP Teams

For accounts payable departments at multinational companies, the compliance challenge is less about your own registration status and more about the invoices you receive from Japanese suppliers. Your AP workflow will encounter invoices from both registered QII suppliers (bearing valid T-numbers) and unregistered suppliers (where transitional credit rules apply).

Each invoice category requires different treatment. Purchases from registered suppliers qualify for full input tax credit. Purchases from unregistered suppliers qualify only for the reduced transitional credit percentage applicable in the current period. AP teams need systematic processes to verify T-numbers, flag unregistered supplier invoices, and apply the correct credit rate, particularly when processing volumes make manual classification impractical. When those supplier payments also involve professional-fee deductions, it helps to separate QIS checks from how Japan withholding tax affects invoice payments so the consumption-tax workflow does not get mixed up with income-tax withholding.

Penalties and the Small Business Controversy

Japan's QIS framework carries real enforcement teeth. Issuing a false qualified invoice, whether by using a fictitious T-number or creating a document designed to be mistaken for a legitimate qualified invoice, is a criminal offense punishable by up to one year of imprisonment or a fine of up to 500,000 yen. These penalties apply even to non-registered businesses that fabricate qualified invoices, making enforcement reach well beyond the pool of registered issuers.

But the legal penalties tell only part of the story. The QIS has triggered one of Japan's most significant tax policy controversies in recent memory, and international businesses dealing with Japanese suppliers benefit from understanding why.

The Registration Dilemma for Small Businesses

Before QIS took effect, roughly 3.7 million Japanese businesses qualified as tax-exempt entities (those earning under 10 million yen annually). Under the old system, these businesses could charge consumption tax to customers without remitting it to the NTA, a practice sometimes called "pocket tax" that the government sought to eliminate.

QIS forced a difficult choice. Without registering as a qualified invoice issuer in Japan, these businesses cannot issue qualified invoices, meaning their corporate customers lose the ability to claim input tax credits on those transactions. The economic pressure is straightforward: buyers facing a 10% cost increase on purchases from unregistered suppliers have strong incentive to switch to registered alternatives.

Approximately 920,000 formerly tax-exempt businesses chose to register, accepting the new compliance burden and tax liability. The remaining millions faced potential loss of customers, reduced bargaining power, or both.

Public Opposition and the STOP Invoice Movement

The scale of public backlash surprised many observers. A Change.org petition opposing QIS implementation gathered over 450,000 signatures, while a separate petition submitted directly to the Prime Minister collected 500,000 signatures. The #STOPインボイス hashtag became a sustained social media campaign rather than a passing protest.

The impact on Japan's creative industries illustrated the human cost in concrete terms. VOICTION, a coalition of voice actors, surveyed its membership and found that 20% of voice actors had considered quitting the profession entirely because of QIS. Another 53% said they would reduce their workload. The financial context made these numbers unsurprising: 70% of surveyed voice actors earned less than 3 million yen per year, placing them well within the formerly tax-exempt bracket now facing new compliance costs and tax obligations.

The Privacy Problem

QIS registration created an unexpected privacy issue that hit certain industries particularly hard. The NTA's public database publishes registrants' real legal names alongside their T-numbers, a transparency measure designed to enable buyer verification. For most businesses, this is unremarkable. For creators working in manga, anime, and VTuber industries, many of whom operate exclusively under pseudonyms or stage names, public disclosure of their legal identities represented a serious professional and personal concern. Some creators faced the choice between maintaining their privacy and maintaining their ability to work with corporate clients who required qualified invoices.

Why This Matters for International Businesses

The QIS is not merely a technical invoicing reform. It has had measurable economic and social consequences that continue to shape Japan's business environment. When multinational companies engage with Japanese freelancers, small agencies, or independent suppliers, they may encounter counterparts who hold strong views about the system, have recently changed their business structure in response to it, or are still navigating the transitional provisions designed to soften the blow. Understanding this context helps international finance teams approach Japanese supplier relationships with appropriate awareness of the environment their partners are operating within.

Processing QIS-Compliant Invoices at Scale

The regulatory framework covered in earlier sections distills into a concrete set of verification tasks that finance teams must execute on every incoming Japanese invoice. At low volumes, manual checking is feasible. At scale, the compounding effect of multiple validation layers across hundreds or thousands of invoices per period creates significant operational risk.

Three critical checks apply to every qualified invoice received:

T-number verification. Each invoice must carry the supplier's registration number (T + 13 digits), and that number must correspond to an active registration in the National Tax Agency's portal. An invalid or expired T-number means the invoice cannot support an input tax credit claim, regardless of whether every other field is correct.

Mandatory field completeness. All six required elements must be present and correctly formatted: supplier name and T-number, transaction date, description of goods or services, consideration amount with applicable tax rate indicated, consumption tax amount broken out by rate category, and recipient identification. A missing or ambiguous field renders the invoice non-qualifying.

Dual-rate tax categorization. Consumption tax amounts must be properly split between the standard 10% rate and the reduced 8% rate, with per-category rounding applied correctly. Invoices that bundle both rates into a single tax line, or that apply rounding at the invoice level rather than per rate category, fail QIS formatting requirements.

Beyond per-invoice checks, organizations need ongoing supplier tracking. Because the transitional credit schedule reduces the claimable percentage for purchases from unregistered suppliers over time, finance teams must maintain current records of each supplier's QII registration status. The difference between an 80% credit and a 50% credit on the same purchase directly impacts tax liability, making supplier classification accuracy a financial priority rather than an administrative formality.

Document retention adds another layer. Qualified invoices, whether paper originals or electronic records stored under Japan's e-Bunsho electronic document storage law, must be preserved for at least seven years as the evidentiary basis for input tax credit claims. Losing or misclassifying these records exposes the organization to credit disallowance during audits.

The volume dimension is where these requirements compound. An organization processing several hundred Japanese invoices per month faces T-number lookups, dual-rate tax validation, mandatory field checking, and supplier status tracking repeated across every document. Manual review at this scale is not just slow but error-prone in ways that carry direct tax consequences.

Invoice Data Extraction addresses these workflow challenges through prompt-based batch processing. Finance teams can upload mixed batches of Japanese invoices and instruct the AI to extract T-numbers into a dedicated column, split consumption tax amounts by rate category (10% and 8% in separate fields), and capture all six mandatory invoice elements as structured data. The platform's multi-language support handles Japanese-language invoices natively, consolidating extracted data into standardized output regardless of source formatting. For teams managing Japan qualified invoice system requirements across a large supplier base, this extraction-first approach converts a manual compliance burden into a structured, auditable dataset.