Major Upgrade of the New NISA Simulation Tool
On May 25, 2026, Account Agent Inc. based in Chuo Ward, Tokyo, announced a significant upgrade to its "New NISA Idle Simulation Tool," which is available for free on the company's website. This upgrade introduces seven new functions designed to enable a more realistic long-term investment simulation accessible to everyone.
Meeting User Needs: Starting from Current Assets
The New NISA has gained attention as a tax-exempt investment framework with a lifetime investment limit of 18 million yen, set to be widely employed for long-term, regular, and diversified investments starting in 2024. However, the company received feedback from users indicating a desire to simulate their investments starting from their current balance rather than a zero balance. Additionally, many users expressed their preference to store their simulation results at their own pace and share them on social media. In response to this feedback, the recent comprehensive upgrade was implemented.
Key Updates (7 Features)
1.
Starting Balance Setting
Previously, the tool assumed a zero starting balance for simulations at the beginning of investments. With this update, users can now input any starting balance, allowing those already utilizing their NISA accounts to conduct simulations based on their current situation.
2.
Expansion of Simulation Duration to 80 Years
The simulation period has been extended from a maximum of 60 years to 80 years. This adjustment anticipates the introduction of the Children’s NISA starting in January 2027, facilitating ultra-long-term simulations.
3.
Highlighting Milestone Years
A new feature allows users to visually highlight the years when they reach the investment limit of 18 million yen on both graphs and summary tables. This feature enhances the user’s ability to reassess their investment plans and strategize post-limit investment.
4.
CSV Output for Simulation Results
Users can now download their simulation results in CSV format. This data can easily be integrated into household management files or used as a consultancy document for discussions with financial planners.
5.
Bug Fix for Clearing Data
A correction was made to ensure that when users clear the input forms, any simulation data beyond the 41st year is reset entirely. This guarantees accurate simulations can begin with fresh conditions after clearing results.
6.
One-Click Posting to X (Formerly Twitter)
A convenient feature has been added that allows users to post their simulation results to X with just one click, enabling them to share their achievement and future asset outlook with family and friends easily.
7.
Excel Detailed Simulation Tool Download for Sharing on X
When users share their simulation results on X, a download link for an Excel version of the detailed simulation tool appears on-screen. This version enables more granular condition settings and comparisons across various scenarios, making advanced simulations possible.
Potential Use Cases
- - For those who are already operating NISA in their 30s to 50s: Input your current balance as the starting point to discern when you will reach the 18 million yen cap with future contributions.
- - For those considering Children’s NISA operations: Utilize the 80-year simulation to track asset growth concerning your child’s future.
- - For users wanting to share results with financial planners: Bring the annual data downloaded as CSV for consultation purposes.
- - For those looking to discuss asset formation with family and friends: Use the X posting feature to share milestone achievements.
- - For those seeking detailed estimations: Acquire the Excel version of the detailed simulation tool to compare multiple scenarios.
Tool Overview
- - Tool Name: New NISA Idle Simulation Tool
- - Availability: Operates on web browsers (Free, no registration required)
- - Main Features:
- Simulation of NISA-based investment
- Duration: Up to 80 years
- Starting balance: Customizable
- Investment limit: Customizable (Milestone years highlighted)
- CSV Output
- Downloadable Detailed Excel Simulation
- - Target Audience: Individuals considering or engaged in long-term and regular investments via New NISA
- - Upgrade Date: May 25, 2026
- - Tool URL: New NISA Simulation Tool
Company Overview
- - Company Name: Account Agent Inc.
- - Representative: Hiroo Fujinuma, CEO
- - Location: 2-1-17 Nihonbashi, Chuo Ward, Tokyo, Danju Building 2F
- - Established: October 2, 2020
- - Phone: 03-6824-4454 (Main)
- - Business Activities:
- Accounting and financial advisory services
- Accounting audits
- Tax advisory and consultation
- Accounting support
- Employment support
- Fund-raising support
This comprehensive update to the New NISA Simulation Tool reflects Account Agent's commitment to meeting the evolving needs of its users, ensuring a more beneficial and user-friendly experience for all.