Finance

What Is the Invoice System? Qualified Invoices, Registration, and Tax Credits

Japan's invoice system, launched in October 2023, changed how the consumption tax purchase tax credit works. This article explains what the invoice system is, what a qualified invoice really is, the role of registered businesses, the link to the purchase tax credit, the impact on taxable and tax-exempt businesses, required invoice items, and key points for freelancers and sole proprietors.

Published: 2026-10-16

"A client asked me for my registration number after the invoice system started." "I am not sure it is safe to stay a tax-exempt business." Comments like these have become common among freelancers and small businesses in Japan. The invoice system is a consumption tax mechanism that began in October 2023, formally called the "qualified invoice retention method." The name sounds difficult, but once you grasp the key points it is not that complex. This article explains what the invoice system is, what a qualified invoice is, and how it relates to you, step by step.

What the Invoice System Is

The invoice system (qualified invoice retention method) is a system that, as a rule, requires you to retain a "qualified invoice" in order to claim the consumption tax purchase tax credit. It began on October 1, 2023.

Consumption tax is added each time goods or services are traded, and a business pays the government the difference between the "tax it received" and the "tax it paid." This subtraction mechanism is the purchase tax credit. Under the invoice system, an invoice containing specified items is now required as the supporting document for claiming this credit.

In short, the invoice system is designed to show clearly on the invoice "who handled how much consumption tax" and make the basis for the credit explicit. If you are unsure about the consumption tax calculation itself, reading along while checking tax-inclusive and tax-exclusive amounts and per-rate breakdowns in the Consumption Tax Calculator (in Japanese) will make it easier to follow.

What a Qualified Invoice Is

A qualified invoice is an invoice or receipt that the seller issues to the buyer to convey the correct applicable tax rate and consumption tax amount. It helps to think of it as the conventional invoice with several items added.

Its biggest feature is that only a business registered with the tax office as a "qualified invoice issuer" can issue a qualified invoice. Once registered, the business is assigned a 13-digit registration number starting with "T," which is written on the invoice. Conversely, a business that is not registered cannot issue an invoice.

What matters here is that registration is limited to taxable businesses for consumption tax. If a tax-exempt business that has been exempt from paying consumption tax wants to issue invoices, it must also go through the procedure to become a taxable business. This point leads to the impact on tax-exempt businesses discussed later.

How the Purchase Tax Credit Relates to Invoices

The reason the invoice system gets so much attention is that it is directly tied to the purchase tax credit. It is easier to understand from the buyer's standpoint.

Suppose that, as a business, you purchase goods and pay the consumption tax included in them. Until now, you could subtract (credit) that paid consumption tax from the "consumption tax you owe." Under the invoice system, however, as a rule you can no longer take this purchase tax credit unless you have received and retained a qualified invoice.

What this means is that if you purchase from an unregistered business, the buyer cannot take the credit, and the consumption tax it owes increases by that amount. In other words, for a buyer, trading with a counterparty that cannot issue invoices may effectively become more costly. To avoid a sudden increase in burden, a transitional measure allows part of the credit for a certain period. The exact percentages and periods may change, so check the latest official information.

If you want a rough sense of the consumption tax you owe, estimating the tax from your sales and purchase amounts in the Consumption Tax Calculator (in Japanese) will help you picture it.

Impact on Taxable and Tax-Exempt Businesses

The impact of the invoice system differs greatly depending on whether you are a taxable business or a tax-exempt business. Let us sort out the two positions.

PositionIssuing invoicesMain impact
Taxable businessCan issue if registeredNeeds a registration number, invoice format changes, and accounting updates
Tax-exempt businessCannot issue as-isPossible price-cut requests or review of transactions

A taxable business can issue invoices once registered. However, administrative work increases, such as obtaining the registration number, revising the invoice format, and retaining and checking received invoices. Note that accounting now demands more care than before.

A tax-exempt business faces a harder decision. Staying tax-exempt means it cannot issue invoices, so its buyers cannot take the purchase tax credit. As a result, situations may arise where clients ask for price cuts or urge a switch to a registered business. On the other hand, becoming a taxable business newly triggers the obligation to pay consumption tax that was previously exempt. Which is more advantageous cannot be stated in general, as it depends on the client's situation and the scale of sales.

Required Items on an Invoice

A qualified invoice requires more items than a conventional invoice. The main required items are as follows.

  • The name of the issuing business and its registration number (13 digits starting with T)
  • The transaction date
  • The transaction details (and a note if the item is subject to the reduced tax rate)
  • The total amount grouped by tax rate and the applicable tax rate
  • The consumption tax amount by tax rate
  • The name of the business receiving the document

Especially important are the registration number and showing the amount and consumption tax separated by tax rate (the standard 10% and the reduced 8%). Because consumption tax has multiple rates, the invoice must clearly show which rate applied to which transaction. When you want to quickly verify a per-rate breakdown, calculating tax-exclusive, tax-inclusive, and tax amounts in the Consumption Tax Calculator (in Japanese) helps when preparing invoices.

Note that retailers, restaurants, and other businesses serving the general public are allowed to issue a "qualified simplified invoice (simplified invoice)" with some items abbreviated. Keep in mind that treatment differs by industry.

What Freelancers and Sole Proprietors Should Know

Those most affected by the invoice system are freelancers and sole proprietors who had been tax-exempt businesses. Here are the key points for making a decision.

1. Whether your clients require invoices

If your clients are taxable businesses that value the purchase tax credit, you are more likely to be asked to issue invoices. Conversely, if your clients are mainly general consumers or have chosen simplified taxation, the need to register may be lower. The starting point is to first confirm whether your main clients require invoices.

2. The trade-offs of registering

If you register and become a taxable business, it is easier to keep your transactions, but consumption tax payments and administrative work increase. If you do not register, no payment obligation arises, but you may be asked to revise transaction terms. You need to weigh your sales scale, the mix of your clients, and the administrative effort together. If you want to consider this alongside your overall tax burden such as income and resident taxes, estimating your take-home pay with the Freelance Tax Calculator gives you more realistic material for the decision.

3. The system and relief measures can change

The invoice system includes relief measures for small businesses (such as the so-called 20% special rule) and transitional measures, but these may be time-limited or revised. Always check the latest status through official information.

The invoice system makes the basis for the consumption tax purchase tax credit explicit through invoices. For freelancers and sole proprietors it involves the weighty choice of "whether to register," but by first understanding your clients' situation and estimating the numbers with the Freelance Tax Calculator and the Consumption Tax Calculator (in Japanese), you can get a clearer outlook for your decision. After understanding the overview of the system, the key is to apply it to your own situation.

Please note that this article is intended to provide general information. Tax rules can be revised, and their application depends on individual circumstances. When making an actual decision, always check the latest official information from sources such as the National Tax Agency, and consult a professional such as a tax accountant if needed.

FAQ

What is the invoice system?

The invoice system (qualified invoice retention method) is a system that, as a rule, requires you to retain a "qualified invoice" to claim the consumption tax purchase tax credit. It began on October 1, 2023. By stating items such as the registration number and per-rate consumption tax amounts on invoices, it clarifies who handled how much consumption tax.

Can anyone issue a qualified invoice?

No. Only a taxable business registered with the tax office as a "qualified invoice issuer" can issue a qualified invoice. Once registered, you are assigned a 13-digit registration number starting with T. If a tax-exempt business wants to issue them, it must also go through the procedure to become a taxable business.

What happens if I stay a tax-exempt business?

If you stay tax-exempt, you cannot issue invoices, so your clients (buyers) cannot take the purchase tax credit. As a result, clients may ask for price cuts or urge you to switch to a registered business. On the other hand, becoming a taxable business triggers an obligation to pay consumption tax, so you need to decide based on your sales scale and your clients' situation.

What items must an invoice include?

The main items are the issuing business name and registration number (13 digits starting with T), the transaction date, the transaction details, the total amount grouped by tax rate and the applicable rate, the consumption tax by rate, and the name of the receiving business. The registration number and showing the standard 10% and reduced 8% rates separately are the big differences from a conventional invoice.

Are the amounts I enter in this site's tools sent to a server?

No. WAZA TOOLS' Consumption Tax Calculator and Freelance Tax Calculator run entirely in your browser, so the amounts you enter are never sent to or stored on a server. They work on smartphones too, and you can estimate as many times as you like for free, so you can use them with peace of mind.