U.S. tax and accounting can be especially complex for Japanese expatriates and green card holders. Differences between the U.S. and Japanese tax systems, disclosure requirements like FBAR and FATCA, and state-by-state variations all demand both specialized expertise and a significant amount of administrative work. In recent years, tax and accounting professionals have increasingly turned to AI assistants like Claude to streamline parts of this work. Here, we share how CLT NY INC. actually uses Claude in practice, and where it makes the biggest difference.
Why AI Matters in Tax and Accounting Right Now
A large share of time in U.S. tax and accounting work goes toward tasks such as:
- Organizing large volumes of receipts and transaction records into journal entries
- Translating and summarizing documents that mix Japanese and English
- Keeping up with tax law changes and IRS guidance
- Drafting explanatory materials and reports for clients
- Routine calculations and data organization in spreadsheets
Most of this isn’t professional judgment itself — it’s the preparatory work that judgment depends on. Generative AI tools like Claude can dramatically shorten this preparatory stage, freeing up tax professionals and staff to focus on the analysis and advisory work that actually requires their expertise.
Practical Use Cases
■ Summarizing and organizing documents
Feeding English tax notices, contracts, or Japanese pay stubs into Claude makes it possible to grasp the key points quickly. Even lengthy notices can be distilled down to the critical figures and deadlines, reducing the risk of missing something important.
■ Japanese-English translation and review
When translating client-facing materials from English into Japanese, or the reverse, Claude produces natural drafts that preserve the nuance of technical terminology. A qualified professional still reviews everything before it goes out, but the time spent on the initial draft drops significantly.
■ Supporting workflow automation
CLT NY INC. also builds automation using GAS and Python, and Claude plays a role there too — helping design and debug scripts for routine aggregation logic and error handling. Working through code with Claude speeds up development and reduces the chance of human error.
■ Drafting client communications
Reply emails and explanations of tax procedures can start as a Claude-generated draft, which staff then review and adjust before sending. This removes the friction of writing from a blank page and speeds up response times.
Things to Keep in Mind
AI is a support tool, not a substitute for professional judgment — the accuracy of filings and final decisions always requires expert review. A few points deserve particular attention:
- Sensitive personal or account information needs to be handled with care
- Anything AI generates should always be reviewed by a licensed professional
- Judgment calls involving tax law interpretation should never be left to AI alone
At CLT NY INC., our IRS-certified Enrolled Agent (EA) reviews all final work, and AI tools are used only to support efficiency — never to replace professional expertise. The goal of adopting these tools is to combine accuracy with speed, not to substitute for the people making the decisions.
In Summary
Generative AI tools like Claude meaningfully reduce the administrative burden in U.S. tax and accounting work, freeing up professionals to focus on higher-value work. CLT NY INC. actively incorporates this kind of technology to provide accurate, responsive U.S. tax and accounting support to Japanese expatriates and green card holders. If you have questions about your U.S. tax or accounting situation, we’d be glad to hear from you.