Tax-Specialized AI 'Zeims' Launches 2-Week Free Trial

Unson LLC (Location: Chiyoda-ku, Tokyo; Representative Member: Keigo Sato) has begun offering a 2-week (14 days) free trial with 30 credits for its tax-specialized AI platform 'Zeims' starting May 10, 2026.

"Can AI really be used for tax work?" — First, please touch it yourself and confirm the response in the field. You can register with just an email address without a credit card, and try all features for free for two weeks.

[Background] The time spent on tax research is depriving firms of competitiveness

Tax accountants and tax professionals need to cross-sectionally research multiple provisions, rulings, and specialized magazines for a single tax consultation. Primary information sources related to tax, such as provisions, rulings, and specialized magazines, are vast, and it is not uncommon to spend several hours just looking for the basis of an answer.

Zeims was developed to face these challenges. With the start of this trial, we have prepared an environment where you can try 2 weeks and 30 credits without card registration, allowing you to easily experience the streamlining of tax research and consultation work.

[What is Zeims] Cutting tax research time with immediate answers with grounds

Zeims is an AI agent specialized for tax professionals that cross-sectionally references multiple primary information sources, such as public information from the National Tax Agency, laws and regulations, rulings, and tax specialized magazines, and answers immediately with a basis link.

It significantly reduces the grounds research that previously took 2 to 4 hours, creating an environment where tax accountants and staff can concentrate on high value-added work.

[Free Trial Details]
Period: 2 weeks (14 days)
Credits granted: 30 credits
Main credit consumption: 1 text chat = 1 credit / 10 minutes of voice transcription = 1 credit
Registration method: Email address only (no credit card required)
Available features: All features (no restrictions)
After the trial ends: Transition to a paid plan, or termination (no automatic billing)

There is no automatic billing to a credit card. After the trial ends, you will transition to a paid plan after selecting your desired plan.

[Pricing Plans (After Trial)]
Plan | Monthly Fee (Tax Included) | Credits/Month | Main Target
Lite | 3,000 yen | 50 | Individuals, light users
Core | 6,000 yen | 100 | Standard tax accountant work
Pro | 16,000 yen | 300 | Large firms, heavy users

[3 Features]

1. Immediate answers with basis links — Breaking away from "somehow AI"
It references multiple primary sources such as National Tax Agency public information, laws, rulings, and tax magazines, presenting links to the source of information that forms the basis for all answers. Because you can trace "why that answer was given," it significantly reduces the burden of internal reviews.

2. Voice input allows you to ask questions on the spot during face-to-face meetings with clients
In addition to text input, it also supports voice input. You can transcribe the conversation during an interview with a client and throw questions to Zeims as is. It reduces the hassle of "looking it up again later" and allows you to confirm a grounded answer on the spot.

3. Accumulate and utilize the firm's knowledge
By registering the firm's own rules, you can have them reflected in Zeims' answers.

[Expert Comment]

"Ever since generative AI first appeared, I was convinced that a tax-specialized AI with more extensive knowledge than any tax accountant would eventually emerge. Zeims is one of the initiatives toward realizing that. With the start of this trial, we hope that more firms will actually touch it, and we want to further reflect the voices from the field into the service."
—— Yasuhiko Sugiyama, Tax Accountant, Sugiyama Accounting Office

[Future Developments]

Zeims is scheduled to release Zeims 2.0 in June 2026, and is advancing the following functional enhancements:
- Further improvement of answer accuracy through a complete reconstruction of the RAG system
- Integration with external AI tools (ChatGPT, Claude, etc.) through API/MCP publication
- Planned implementation of a tax return check function (automatic checking of tax returns by AI)

[Register for the Trial Here]
▶ https://web.zeims.ai/register
You can start using it on the same day just by clicking the link that arrives when you enter your email address.

[Company Overview]
Company Name: Unson LLC
Representative: Representative Member Keigo Sato
Location: VORT Akihabara IV 2F, 1-7-8 Kanda Sudacho, Chiyoda-ku, Tokyo 101-0041
Established: September 9, 2024
Business Description: Development and operation of tax-specialized AI platform "Zeims"
URL: https://service.zeims.ai

[Inquiries Regarding This Press Release]
Unson LLC
Email: support@zeims.ai
URL: https://service.zeims.ai/free_trial