E-Seikatsu and NTT Data Business Brains Begin Joint Development of New Lease Accounting Standard Compliance Package
E-Seikatsu and NTT Data Business Brains have commenced joint development of a "New Lease Accounting Standard Compliance Package" to address the new lease accounting standards (Corporate Accounting Standard No. 34 "Accounting Standards for Leases," etc.) that will be mandatorily applied from April 2027. This package aims to minimize legal compliance costs for mid-sized companies and strongly support DX in back-office operations.
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- 📰 Published: April 30, 2026 at 19:00
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E-Seikatsu Co., Ltd. (Minato-ku, Tokyo; Representative Director, President & CEO: Yoshikazu Maeno; TSE Standard: 3796; hereinafter: E-Seikatsu), which promotes DX in the real estate market with vertical SaaS covering real estate operations and BPaaS (*1) that promotes operational efficiency, announces that it has begun joint development of a practical "New Lease Accounting Standard Compliance Package" with NTT Data Business Brains Corporation (Headquarters: Minato-ku, Tokyo; Representative Director, President: Makoto Tokiyoshi; hereinafter: NTT Data Business Brains), an NTT Data Group company. This package is designed to comply with the new lease accounting standards (Corporate Accounting Standard No. 34 "Accounting Standards for Leases," etc.) that will be mandatorily applied from April 2027.
E-Seikatsu and NTT Data Business Brains Begin Joint Development of New Lease Accounting Standard Compliance Package
### Background and Overview of Development
The mandatory application of the new lease accounting standards in April 2027 will require the "on-balance sheet" recording of all lease agreements for offices, stores, warehouses, etc., as assets and liabilities.
Especially for mid-sized companies in retail, F&B, and service industries with multiple stores and locations, the enormous task of organizing contract information and the complex recalculations (remeasurements) that occur with each rent revision or extension period become a significant practical burden.
However, the current market offers essentially two options: "expensive ERP (enterprise resource planning) systems" costing tens of millions of yen, or "manual work using Excel" which carries risks. There is a need for a third option that allows mid-sized companies to complete their operations at an appropriate cost.
To fill this gap, both companies will develop a package software that combines their respective business strengths.
1. E-Seikatsu (Information Container): Property Master tailored to real estate operations
Leveraging the knowledge cultivated through real estate-specific SaaS, it accurately digitizes real estate-specific data that cannot be fully captured by general accounting software, such as parking, common service fees, and cancellation option judgments.
2. NTT Data Business Brains (Calculation Engine): No-code cloud database "Slopebase"
"Slopebase," a no-code tool operating on NTT Data Group's technology platform, is adopted as the calculation engine. It automatically processes complex lease accounting calculation logic while flexibly accommodating management items specific to each company.
This combination realizes a seamless, end-to-end flow where accounting journal entries are automatically generated simply by updating property information, eliminating duplicate input.
### Future Outlook
The official release of this package is scheduled for October 2026. Prior to the release, "Practical Strategy Webinars" targeting accounting and general affairs departments of multi-store companies will be held sequentially from June, proposing specific preparation methods for the application of the new standards.
Through this project, both companies will minimize legal compliance costs for mid-sized companies and strongly support DX in back-office operations.
*1 BPaaS: Abbreviation for Business Process as a Service, which means outsourcing business processes on the cloud.
- NTT Data Business Brains Corporation Overview https://www.nttd-bb.com/
Trade Name: NTT Data Business Brains Corporation
Location: Shiba Park Building A, 14F, 2-4-1 Shiba-koen, Minato-ku, Tokyo
Established: September 2003
Business Activities: Planning, development, operation, education, and consulting related to information systems.
- E-Seikatsu Co., Ltd. Overview https://www.e-seikatsu.info/
E-Seikatsu is a real estate tech company that provides real estate business cloud services and real estate platform services, with the mission of "creating many good lives with technology and heart." E-Seikatsu swiftly and flexibly responds to legal revisions and IT advancements in the real estate market, promoting DX in the real estate market with a full lineup of SaaS that covers real estate operations. E-Seikatsu aims to realize its vision of "creating a social mechanism where comfortable living circulates" through solutions that are close to not only companies related to the real estate market but also various regions across Japan.
Trade Name: E-Seikatsu Co., Ltd.
Location: Kowa Hiroo Building 3F, 5-2-32 Minamiazabu, Minato-ku, Tokyo
Established: January 21, 2000
Capital: 628,411,540 JPY (as of end of March 2025)
Business Activities: Development and provision of SaaS for the real estate market.
[Contact for this matter]
E-Seikatsu Co., Ltd. Marketing Department, Public Relations Section
TEL: 03-5423-7836 (Weekdays 9:00-18:00) E-Mail: contact.pr@e-seikatsu.co.jp
Keywords:
E-Seikatsu and NTT Data Business Brains Begin Joint Development of New Lease Accounting Standard Compliance Package
### Background and Overview of Development
The mandatory application of the new lease accounting standards in April 2027 will require the "on-balance sheet" recording of all lease agreements for offices, stores, warehouses, etc., as assets and liabilities.
Especially for mid-sized companies in retail, F&B, and service industries with multiple stores and locations, the enormous task of organizing contract information and the complex recalculations (remeasurements) that occur with each rent revision or extension period become a significant practical burden.
However, the current market offers essentially two options: "expensive ERP (enterprise resource planning) systems" costing tens of millions of yen, or "manual work using Excel" which carries risks. There is a need for a third option that allows mid-sized companies to complete their operations at an appropriate cost.
To fill this gap, both companies will develop a package software that combines their respective business strengths.
1. E-Seikatsu (Information Container): Property Master tailored to real estate operations
Leveraging the knowledge cultivated through real estate-specific SaaS, it accurately digitizes real estate-specific data that cannot be fully captured by general accounting software, such as parking, common service fees, and cancellation option judgments.
2. NTT Data Business Brains (Calculation Engine): No-code cloud database "Slopebase"
"Slopebase," a no-code tool operating on NTT Data Group's technology platform, is adopted as the calculation engine. It automatically processes complex lease accounting calculation logic while flexibly accommodating management items specific to each company.
This combination realizes a seamless, end-to-end flow where accounting journal entries are automatically generated simply by updating property information, eliminating duplicate input.
### Future Outlook
The official release of this package is scheduled for October 2026. Prior to the release, "Practical Strategy Webinars" targeting accounting and general affairs departments of multi-store companies will be held sequentially from June, proposing specific preparation methods for the application of the new standards.
Through this project, both companies will minimize legal compliance costs for mid-sized companies and strongly support DX in back-office operations.
*1 BPaaS: Abbreviation for Business Process as a Service, which means outsourcing business processes on the cloud.
- NTT Data Business Brains Corporation Overview https://www.nttd-bb.com/
Trade Name: NTT Data Business Brains Corporation
Location: Shiba Park Building A, 14F, 2-4-1 Shiba-koen, Minato-ku, Tokyo
Established: September 2003
Business Activities: Planning, development, operation, education, and consulting related to information systems.
- E-Seikatsu Co., Ltd. Overview https://www.e-seikatsu.info/
E-Seikatsu is a real estate tech company that provides real estate business cloud services and real estate platform services, with the mission of "creating many good lives with technology and heart." E-Seikatsu swiftly and flexibly responds to legal revisions and IT advancements in the real estate market, promoting DX in the real estate market with a full lineup of SaaS that covers real estate operations. E-Seikatsu aims to realize its vision of "creating a social mechanism where comfortable living circulates" through solutions that are close to not only companies related to the real estate market but also various regions across Japan.
Trade Name: E-Seikatsu Co., Ltd.
Location: Kowa Hiroo Building 3F, 5-2-32 Minamiazabu, Minato-ku, Tokyo
Established: January 21, 2000
Capital: 628,411,540 JPY (as of end of March 2025)
Business Activities: Development and provision of SaaS for the real estate market.
[Contact for this matter]
E-Seikatsu Co., Ltd. Marketing Department, Public Relations Section
TEL: 03-5423-7836 (Weekdays 9:00-18:00) E-Mail: contact.pr@e-seikatsu.co.jp
Keywords: