Indirect Tax consulting for global companies.

We, OPTI Inc, as a leading Indirect tax consulting company, support global companies’ VAT refund including Japanese Consumption Tax refund with experienced tax consultants. If your company has spent lots of indirect tax in EU or in Japan, there are lots of rooms to be optimized.


VAT Refund

We, OPTI Inc, as a leading Indirect tax planning company, can support foreign companies’ JCT refund with experienced tax consultants. If your company has spent lots of consumption tax in Japan, there are lots of rooms to be optimized.

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VAT Registration

If your company does business in EU, your company would register VAT number in EU. OPTI will support your company’s VAT registration and other statistical returns.

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VAT Refund

We can optimize the VAT cost that has been taxed to you by foreign companies.

VAT Registration

We support VAT Registration in EU countries.

Tax Consulting

We can support you with a variety of consulting services related to international indirect taxes.

Tax Planning

Analysis of your business scheme in EU from a tax perspective.



room for cost reduced


Saving Cost

Foreign Partners


Success Fee Basis

We support your VAT return upon success fee basis. In other words, wasted costs for your company do not occur at all.


Since OPTI’s creation, we supplied our services to many customers, from government entities to listed-companies. We have variety of practical experiences.

Over 80 Tax Agent Partners

In order to always support your business the best way, we teamed up with local experts from all over the world.

Reasonable Price

OPTI Inc. carries out TAX Consulting services at a reasonable price.

Our Clients

Voice of the Customer

Read Customer’s feedback about their experience with OPTI Inc.

After reading articles about taxation from government agency JETRO (JAPANESE EXTERNAL TRADE ORGANIZATION), I contacted the author thinking he would have a rich expertise in the tax field. Now, I am really pleased with the actual cost reduction my company made. 
Mister Hamada,

Furukawa Electrics Co., Ltd.

After examination of several companies, we chose to work with OPTI Inc. since they offer high quality support with competitive prices.

Mister Azuma,

TOMOE Engineering Co., Ltd.

Until not long ago, we did not think much about VAT whether it was for sales or purchases department, “But the moment I had to do business in Europe, I realised that not paying attention to the tax called VAT could turn very wrong”.

Mister Koda,

Yaskawa Siemens Automation & Drives Corp.

I think I learn from contract points, amongst others, that still some salesman do not create invoices with awareness of legal and tax matters from overseas.

Mister Toibana,

President of, Daiwa Special Glass co., Ltd.

Let our professional Tax Consultants do it for you.