agent for tax payment

Paying taxes overseas, reliably.

OPTi takes care of the tax payment procedures for VAT and sales tax in each country on your behalf.
As a tax administrator, we provide total support to Japanese companies for overseas indirect tax compliance.

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Increased complexity of overseas tax payment procedures and increased risk of delinquency

With the expansion of cross-border e-commerce and the establishment of overseas offices, an increasing number of companies are required to pay taxes directly to tax authorities in various countries. However, remittance methods, currencies, and deadlines differ from country to country, and the risk of overdue taxes and fines due to inadequate procedures is a serious management issue.

This is the best choice for people like you.

Companies that have started cross-border EC and are obliged to pay taxes in each country

Companies wishing to centralize tax procedures in multiple countries

Companies that do not know how to send money to overseas authorities

Multinational companies with complicated tax payment deadlines to manage

Accounting departments that want to eliminate the risk of delinquent taxes and fines

Service Strengths

Tax Due Date Management for Each Country


Tax due dates in more than 170 countries are managed centrally, and alerts are sent out two weeks prior to the due date. Holidays, extensions, and system changes in each country are also reflected in real time, preventing overdue tax due dates from occurring due to inadvertent overdue payments.

Reduce remittance risk

We ensure that remittances are sent to tax authorities in each country. We handle the entire remittance process, including confirmation of the destination account, currency conversion, and confirmation of receipt, so there is no risk of erroneous or undelivered remittances. With only one remittance to us, you can complete your tax payments to all target countries.

Prevention of Delinquent Taxes


Through a combination of deadline management and reliable remittance execution, we reduce the risk of overdue taxes and fines to zero. In the unlikely event that a problem arises due to processing delays on the part of the authorities, we will negotiate directly with the authorities to protect your interests.

Service Details

Our tax payment agent service provides a one-stop service for VAT/sales tax payment procedures to tax authorities in various countries, including remittance and confirmation of receipt of payment. We support a wide range of companies with overseas tax obligations, from cross-border e-commerce businesses to multinational manufacturing companies.

The specific flow of the service is as follows: First, we determine the amount of tax due based on the results of tax returns in each country, and notify the customer of the tax payment schedule and amount. After receiving a lump-sum remittance from the client to our designated account, we execute the remittance in the local currency to the account designated by the tax authorities in each country.

After remittance, we confirm receipt of the money and check it against the tax records of the tax authorities in each country. In the unlikely event of a discrepancy in the amount or an unreported amount, we will promptly contact the authorities and take corrective action.

Frequently Asked Questions

Category Title

Q.

In which countries do you support tax agents?

A.

We support more than 170 countries around the world, and we also provide tax administrator services for foreign companies for JCT (Japan Consumption Tax).

Q.

Can I pay taxes without a local bank account?

A.

Yes, we can pay taxes on your behalf through your Opti account. Please contact us for details.

Q.

How is the tax payment schedule managed?

A.

Manage tax due dates in real time through the MyOPTI Portal. Notify you before the due date.

Q.

Can you respond in Japanese?

A.

Yes, all communication will be done in Japanese. OPTi will also handle all communication with local tax authorities on your behalf.

Q.

Can I specify the remittance currency?

A.

We can handle the transfer in one lump sum in Japanese yen. We will handle the conversion to local currency.

Q.

Are you compliant with the Funds Settlement Act?

A.

We are able to handle this in a manner that does not pose any problems with the Funds Settlement Law. Schemes differ depending on the target country.

Flow up to the start of service

  • 01

    Inquiry/Hearing
    We will interview you about the target country, the nature of the transaction, and your current tax situation.

  • 02

    Contract

    A contract is signed after determining the target country, scope of services, and costs.

  • 03

    Tax Manager Contract and Authority Registration
    OPTi will register you as a tax agent with the tax authorities in your country.

  • 04

    Calculation and Confirmation of Tax Payment
    Tax payments are calculated based on tax returns and data, and confirmed by your company.

  • 05

    Payment of taxes on behalf of the client and acquisition of tax certificates
    We will process your tax payments to the tax authorities and obtain and keep your tax certificates.

Why choose OPTi?

As a specialized international indirect tax firm, OPTi Corporation provides VAT, sales tax, and GST registration and filing services in more than 170 countries around the world.
We have extensive experience in Europe, the UK, and Asia, and support a wide range of clients from major corporations to cross-border e-commerce businesses.
With our global network of local partners and the latest tax system knowledge, we can certainly support your global business from a tax perspective.

Our Expert Team Is Here to Help

For International Tax Matters, Turn to OPTI

Have questions about tax challenges, VAT registration, or tax filing in overseas markets? Get in touch — we'll find the right solution for you.