Yayoi Achieves No. 1 Cloud Accounting Software Share for Sole Proprietors for 11 Consecutive Years at 54.0%
Yayoi Co., Ltd. announced that it has secured a 54.0% share in the cloud accounting software market for sole proprietors, maintaining its No. 1 position for 11 consecutive years, according to a survey by MM Research Institute. The company also holds a 50.1% share among side-job and real estate rental income earners, actively driving market digitalization.
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- 📰 Published: April 30, 2026 at 20:00
- 🔍 Collected: April 30, 2026 at 11:31
- 🤖 AI Analyzed: April 30, 2026 at 14:29 (2h 57m after Collected)
Yayoi Co., Ltd. (Head Office: Chiyoda-ku, Tokyo; Representative Director, President and CEO: Kenichiro Muto; hereinafter "Yayoi") announced today that it recorded a 54.0% share in cloud accounting software by vendor, according to the "Cloud Accounting Software Usage Survey (as of March 2026)" published by MM Research Institute in April 2026. This marks Yayoi's 11th consecutive year achieving the No. 1 share since the survey began.
Overview of Survey Results
* **Overwhelming Share**: Achieved a 54.0% share in cloud accounting software for sole proprietors, significantly leading the second-place and subsequent companies.
* **Leader in Side-Job/Real Estate Income Segment**: Beyond sole proprietors, Yayoi also secured a 50.1% share among those with side-job and real estate rental income, demonstrating broad user support.
* **Driving Market Digitalization**: Amid a 38.4% cloud adoption rate, driven by digitalization of administrative procedures and compliance with the invoice system, Yayoi has significantly contributed to expanding the market base.
This survey was conducted by MM Research Institute (Head Office: Minato-ku, Tokyo; Director: Kazuichi Sekiguchi), an ICT market research and consulting firm, through a web-based questionnaire targeting sole proprietors, summarizing the usage status of cloud accounting software as of the end of March 2026.
The survey revealed that the adoption rate of cloud accounting software among sole proprietors has steadily increased year by year, reaching 38.4%. Furthermore, in the vendor-specific share of selected cloud accounting software, Yayoi holds the No. 1 position with 54.0%. This survey, which started in 2016, shows Yayoi maintaining a top share of over 50% every year.
Additionally, Yayoi has garnered support from a wide range of users, securing a 50.1% share not only among sole proprietors but also among those with side-job and real estate rental income.
■ **Background of 11 Consecutive Years as No. 1**
In this survey, Yayoi was chosen by more than half of sole proprietors. This is attributed to the ease of creating tax returns, smooth support for electronic filing (e-Tax), and a comprehensive support system. Furthermore, among the increasing number of people with side jobs and real estate rental income in recent years, Yayoi has maintained approximately half of the market share, with its intuitive usability, even for those without specialized knowledge, being accepted by users who choose diverse work styles.
■ **Outlook for Digitalization Promotion**
With the government's push for digitalization, starting from the 2028 tax filing (for 2027 income), the special deduction for blue-form tax returns is scheduled to increase from the current 650,000 yen to 750,000 yen, provided electronic bookkeeping and e-Tax are used. Conversely, if electronic procedures are not adopted, the deduction amount will be reduced to 100,000 yen, indicating a significant tax system change. As an industry leader, Yayoi will continue to enhance its functions and promote digitalization support through its cloud accounting software "Yayoi Blue Return Online" to ensure all users can reliably receive this preferential treatment.
【**Survey Outline**】
* **Target and Number of Responses**:
* 15,845 sole proprietors who will file tax returns for Reiwa 7 (2025)
* 2,888 individuals with side-job/real estate rental income who will file tax returns for Reiwa 7 (2025)
* *Excluding sole proprietors in the sample for side-job/real estate rental income.
* **Survey Method**: Web questionnaire
* **Survey Period**: March 23-26, 2026
【**About Yayoi's Cloud Tax Return Software**】
Yayoi's "Tax Return Software" is a cloud-based tax return software for sole proprietors that allows even first-time users to easily create tax return documents. It eliminates the need for complicated bookkeeping and accounting knowledge, ensuring peace of mind.
Yayoi Blue Return Online
https://www.yayoi-kk.co.jp/shinkoku/aoiroshinkoku/
Yayoi White Return Online
https://www.yayoi-kk.co.jp/shinkoku/shiroiroshinkoku/
【**About Yayoi Co., Ltd.**】
Yayoi Co., Ltd. operates with the mission "To create a positive cycle in Japan by energizing small and medium-sized businesses." It develops, sells, and supports the "Yayoi Series" software that assists back-office operations. The "Yayoi Series" has over 4 million registered users and is used by many customers.
By combining Yayoi's strengths—its customer network, vast accumulated data, one of the industry's largest customer service centers, and relationships with partners—with technologies like AI, Yayoi will continue to support small and medium-sized businesses in achieving their desired goals.
* **Representative**: Kenichiro Muto, Representative Director, President and CEO
* **Founded**: 1978
* **Employees**: 801 (as of September 2025)
Overview of Survey Results
* **Overwhelming Share**: Achieved a 54.0% share in cloud accounting software for sole proprietors, significantly leading the second-place and subsequent companies.
* **Leader in Side-Job/Real Estate Income Segment**: Beyond sole proprietors, Yayoi also secured a 50.1% share among those with side-job and real estate rental income, demonstrating broad user support.
* **Driving Market Digitalization**: Amid a 38.4% cloud adoption rate, driven by digitalization of administrative procedures and compliance with the invoice system, Yayoi has significantly contributed to expanding the market base.
This survey was conducted by MM Research Institute (Head Office: Minato-ku, Tokyo; Director: Kazuichi Sekiguchi), an ICT market research and consulting firm, through a web-based questionnaire targeting sole proprietors, summarizing the usage status of cloud accounting software as of the end of March 2026.
The survey revealed that the adoption rate of cloud accounting software among sole proprietors has steadily increased year by year, reaching 38.4%. Furthermore, in the vendor-specific share of selected cloud accounting software, Yayoi holds the No. 1 position with 54.0%. This survey, which started in 2016, shows Yayoi maintaining a top share of over 50% every year.
Additionally, Yayoi has garnered support from a wide range of users, securing a 50.1% share not only among sole proprietors but also among those with side-job and real estate rental income.
■ **Background of 11 Consecutive Years as No. 1**
In this survey, Yayoi was chosen by more than half of sole proprietors. This is attributed to the ease of creating tax returns, smooth support for electronic filing (e-Tax), and a comprehensive support system. Furthermore, among the increasing number of people with side jobs and real estate rental income in recent years, Yayoi has maintained approximately half of the market share, with its intuitive usability, even for those without specialized knowledge, being accepted by users who choose diverse work styles.
■ **Outlook for Digitalization Promotion**
With the government's push for digitalization, starting from the 2028 tax filing (for 2027 income), the special deduction for blue-form tax returns is scheduled to increase from the current 650,000 yen to 750,000 yen, provided electronic bookkeeping and e-Tax are used. Conversely, if electronic procedures are not adopted, the deduction amount will be reduced to 100,000 yen, indicating a significant tax system change. As an industry leader, Yayoi will continue to enhance its functions and promote digitalization support through its cloud accounting software "Yayoi Blue Return Online" to ensure all users can reliably receive this preferential treatment.
【**Survey Outline**】
* **Target and Number of Responses**:
* 15,845 sole proprietors who will file tax returns for Reiwa 7 (2025)
* 2,888 individuals with side-job/real estate rental income who will file tax returns for Reiwa 7 (2025)
* *Excluding sole proprietors in the sample for side-job/real estate rental income.
* **Survey Method**: Web questionnaire
* **Survey Period**: March 23-26, 2026
【**About Yayoi's Cloud Tax Return Software**】
Yayoi's "Tax Return Software" is a cloud-based tax return software for sole proprietors that allows even first-time users to easily create tax return documents. It eliminates the need for complicated bookkeeping and accounting knowledge, ensuring peace of mind.
Yayoi Blue Return Online
https://www.yayoi-kk.co.jp/shinkoku/aoiroshinkoku/
Yayoi White Return Online
https://www.yayoi-kk.co.jp/shinkoku/shiroiroshinkoku/
【**About Yayoi Co., Ltd.**】
Yayoi Co., Ltd. operates with the mission "To create a positive cycle in Japan by energizing small and medium-sized businesses." It develops, sells, and supports the "Yayoi Series" software that assists back-office operations. The "Yayoi Series" has over 4 million registered users and is used by many customers.
By combining Yayoi's strengths—its customer network, vast accumulated data, one of the industry's largest customer service centers, and relationships with partners—with technologies like AI, Yayoi will continue to support small and medium-sized businesses in achieving their desired goals.
* **Representative**: Kenichiro Muto, Representative Director, President and CEO
* **Founded**: 1978
* **Employees**: 801 (as of September 2025)