
Fanny Berteaud,
Country Manager, Selectra Japan KK


After 6 years managing Selectra in Japan, I can assure that choosing Yamamoto-san for our accounting and tax has been one of the best decisions I have ever made!
From fixing our financial report to filing our tax returns and paying withholding taxes monthly, his services has allowed me to focus on what matters for the company’s growth. I greatly appreciate not only his responsiveness and speed when needing something urgent, but also his flexibility, always willing to help and bring insights on topics he masters.
His fluent English makes him the ideal support for any foreign firms in Japan that is looking to improve its accounting flows and reports.
Selectra and I can only recommend his services! Thank you for everything.
★★★★★★★★★★★★

Greg Varga,
Representative, Hello Mikan GK


Hiroki Yamamoto at Ace Tax Consulting helped me establish my business in Tokyo and guided me through the complexities of Japanese taxation and payroll with clear, reliable support.
He was consistently quick to respond and always willing to assist. I highly recommend his services to anyone planning to set up and operate a business in Japan.
★★★★★★★★★★★★

Garrett DeRosset,
Representative, Harmony Logistics GK


I’d like to share that my accountant, Hiroki Yamamoto, has been incredibly supportive, allowing me to focus wholeheartedly on my drone-related services. Thanks to his diligent care, I have genuine peace of mind knowing everything is in such capable hands.
★★★★★★★★★★★★
合同会社REV9JAPAN
経理マネジャー 山口奈美様
Nami Yamaguchi,
Accounting Manager, Rev9 Japan GK

わたしは法人化して数年の5名以下の小さな法人で事務を担当しております。
会計業務に不慣れな私でも、山本さんは、使いやすい会計ソフトを教えてくださり、また常日頃から仕訳のサポートなどしてくださっているおかげでかなり助かっています。間違った処理など適切に修正してくださり、またその連絡もメールや電話を通じてその都度こまめに連絡をくださいます。
山本さんは、とても頼り甲斐のある税理士さんだと実感しており、これからも末長くお付き合いしていきたいと思っています。
I am responsible for accounting and administrative work at a small company with fewer than five employees that was incorporated several years ago. Even though I am not very familiar with accounting tasks, Mr. Hiroki Yamamoto has been extremely helpful. He recommended easy-to-use accounting software and provides ongoing support with journal entries on a regular basis, which has been a great help to me.
When there are any incorrect accounting and tax treatments, he promptly makes the appropriate corrections and keeps me informed each time through email or phone calls. I truly feel that Mr. Hiroki Yamamoto at Ace International Tax Consulting Firm is a highly reliable and trustworthy licensed tax accountant, and I hope to continue working with his firm for many years to come.
★★★★★★★★★★★★

Emile Denichaud,
Business Manager, TBD GK


Clear guidance, dependable support, and long-term confidence.
I have engaged ACE Tax Consulting’s services for over three years and worked closely with Yamamoto-san, whose guidance has been fundamental to my business. As an international entrepreneur operating in Japan, I value his ability to communicate clearly, act decisively, and remain consistently accessible.
Working in close coordination with my immigration lawyer, Yamamoto-san’s experience and sound judgment have been instrumental in shaping my long-term plans. I genuinely could not have achieved this without his support, and I recommend Yamamoto-san and ACE Tax Consulting without hesitation to anyone seeking a trusted and dependable tax advisory partner.
★★★★★★★★★★★★
合同会社CNB JAPAN
職務執行者 高橋弥須枝様
Yasue Takahashi,
Representative, CNB JAPAN GK


法人設立の相談をした行政書士の先生より山本先生をご紹介いただきました。税務に関して全く無知の私たちに丁寧にご説明いただき、安心できました。
日本の子会社から、海外の親会社への輸出もあり消費税還付などについても初めてでしたのでとても不安でしたが
相談事や疑問があるとすぐに打ち合わせの時間を取っていただき、お話を聞いてくださいます。
I was introduced to Mr. Hiroki Yamamoto by the Japanese administrative scrivener with whom we consulted regarding our Japanese company incorporation.
As we had very limited knowledge of Japanese tax matters, he provided clear and thorough explanations, which gave us great peace of mind.
Since our Japanese subsidiary exports goods to our overseas parent company, this was our first experience dealing with matters such as Japanese consumption tax refunds, and we were quite anxious at the beginning. However, whenever we have questions or concerns, he promptly arranges a meeting, takes the time to listen to us carefully, and provides timely and appropriate advice.