Early Purchase Campaign for Yayoi 27 Series
To ensure a seamless transition for users regarding the revised Invoice System’s transitional measures, which will apply from October 2026, Yayoi is implementing an early purchase campaign. Customers who newly purchase and register “Yayoi 26 Series” products from August 1, 2026, will receive a free online update to the “Yayoi 27 Series.”
Eligible Products for the Campaign:
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“Yayoi no Aoiro Shinkoku 26”
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“Yayoi Kaikei 26”
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“Yayoi no Mitsumori Nouhin Seikyusho 26”
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“Yayoi Hanbai 26”
Background of Early Provision
The transitional measures for input tax credits under the Invoice System (Qualified Invoice Storage Method) are set to be revised in October 2026. To minimize practical confusion and operational burdens caused by this legal amendment and to help users smoothly transition to the new system, Yayoi developed the “Yayoi 27 Series” to quickly adapt to the law revision. The series will be made available online prior to its retail launch.
About Yayoi 27 Series
The “Yayoi Series” business software is designed to support the back-office operations of SMEs and sole proprietors, offering “easy, secure, and reliable” solutions. It provides optimal solutions tailored to users’ operational environments and needs, offering both installable desktop software and cloud services.
As the latest version of desktop software, which has held the No. 1 sales position for 27 consecutive years, “Yayoi 27 Series” addresses complex legal compliance, including the Invoice System’s transitional measures beginning in October 2026. Additionally, it incorporates multiple functional updates based on user requests and usage patterns, continually improving the software to better fit practical operations.
For inquiries regarding the purchase of Yayoi network products, please consult a Yayoi Business Partner or your existing dealer. Eligible customers for the early purchase campaign will receive the “Yayoi 27 Series” via online update sequentially from September 2026, ahead of the general release.
More information about the Yayoi 27 Series is available here: https://www.yayoi-kk.co.jp/yss/info/detail.20260803-2/
Key Legal Compliance and Functional Improvements in Yayoi 27 Series
Legal Compliance: Invoice System Transitional Measures
Applicable Products: “Yayoi no Aoiro Shinkoku 27,” “Yayoi Kaikei 27,” “Yayoi Hanbai 27”
The software has been updated to comply with the FY2026 tax reform, which revises the transitional measures for input tax credits on taxable purchases from tax-exempt businesses.
- Regarding the review of the consumption tax system for food and beverages, which is currently under consideration, product updates and information will be provided promptly once the system details are finalized.
Functional Improvement: New Business Data Creation for Limited Liability Companies
Applicable Product: “Yayoi Kaikei 27”
The chart of accounts now includes “Corporation / Limited Liability Company,” enabling the creation of new business data specifically for limited liability companies. It also supports the creation of statements of changes in equity.
Functional Improvement: Multi-user Environment Enhancement
Applicable Products: “Yayoi Kaikei 27 Professional 2 Users,” “Yayoi Kaikei Network,” “Yayoi Kaikei AE”
The ability to directly switch between ON/OFF for exclusive mode has been added, improving convenience for multiple users.
Functional Improvement: Delivery Address Code Extension
Applicable Product: “Yayoi Hanbai 27”
The delivery address code registration has been expanded from 4 digits to a maximum of 14 digits. This allows for the registration of more delivery addresses, enabling detailed registration and management of delivery destinations for each branch or store, even for trading partners with numerous locations.
Product Overview
Yayoi no Aoiro Shinkoku 27
“Yayoi no Aoiro Shinkoku” is a popular tax filing software trusted by sole proprietors and freelancers. It offers intuitive operation from daily transaction entry to tax return creation, ensuring ease of use for beginners. Cloud services for automatic journal entry and data sharing with tax accountants significantly reduce operational burden. It reliably supports the “650,000 yen deduction” for e-Tax filing. This hybrid tax filing software combines the stability of desktop with the convenience of cloud.
https://www.yayoi-kk.co.jp/shinkoku/aoiroshinkoku/yayoiaoiro/
Yayoi Kaikei 27
“Yayoi Kaikei” is a leading accounting software with an overwhelming market share, supporting small businesses. Its intuitive operation, from daily transaction entry to financial statements, makes it easy for first-time users. Features like automatic import and journal entry reduce manual effort, and cloud integration enables smooth data sharing with accounting firms. It is a hybrid accounting software that combines desktop stability with cloud convenience.
https://www.yayoi-kk.co.jp/kaikei/yayoikaikei/
Yayoi no Mitsumori Nouhin Seikyusho 27
“Yayoi no Mitsumori Nouhin Seikyusho” is an easy-to-use software for creating estimates, delivery notes, and invoices. Users can quickly create these documents by selecting the desired form and entering information. Documents can be output as PDFs and sent via email, reducing printing and mailing costs and effort. It flexibly supports both paper and digital formats to meet client needs and is compliant with the “Qualified Invoice Storage Method (Invoice System).” Users can easily create original forms tailored to their company and clients, making it a reliable invoicing software ready for immediate use.
https://www.yayoi-kk.co.jp/seikyusho/yayoiseikyu/
Yayoi Hanbai 27
“Yayoi Hanbai” is a trusted sales management software that supports the commercial flow of SMEs. It offers comprehensive functionality from estimate and invoice creation to sales, purchase, and inventory management. The software supports web transmission of documents, significantly reducing printing and mailing costs. It also complies with the Invoice System and the Electronic Book Storage Law, ensuring smooth legal compliance. Its intuitive interface allows even first-time users to master it easily, supporting flexible operations in both paper and digital formats.
https://www.yayoi-kk.co.jp/hambai/
About Yayoi Co., Ltd.
Yayoi Co., Ltd. operates with the mission to “Energize small and medium-sized enterprises to create a positive cycle in Japan.” The company develops, sells, and supports the “Yayoi Series” software, which assists back-office operations. The “Yayoi Series” is utilized by over 4 million registered users.
By combining its strengths—customer network, vast accumulated data, the industry’s largest customer service center, and partner relationships—with technologies like AI, Yayoi aims to support SMEs in achieving their desired goals.
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Representative: Kenichiro Muto, Representative Director, President & CEO
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Founded: 1978
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Employees: 801 (as of September 2025)
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Business Activities: Development, sales, and support of business software and related services
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Headquarters: Akihabara UDX 21F, 4-14-1 Sotokanda, Chiyoda-ku, Tokyo
