How to grant an authorisation for tax matters

The “Managing of tax affairs” authorisation corresponds to the “MyTax for individuals and entrepreneurs” and “Company MyTax” Katso roles.

An authorised agent can take care of all the tax matters of the person or company who has granted the authorisation. The agent can also access tax data in MyTax. For example, an accountant can be authorised to manage all the tax matters of a company.

The authorised agent can visit tax offices and call our telephone service as well as use MyTax, Ilmoitin.fi, Lomake.fi and any future e-services on the authorising party’s behalf. However, the authorisation does not allow the agent to use Palkka.fi or to submit reports to the Incomes Register. The Incomes Register requires separate authorisation. The “Managing tax affairs” mandate is not available in the EMCS and Excise Duty Online e-services.

The “Managing of tax affairs” authorisation can be used by

• individual taxpayers
• self-employed individuals and agricultural operators
• general and limited partnerships
• limited companies, housing companies and cooperatives.

How to grant an authorisation – see instructions for your situation

Agents can see the personal tax data of self-employed individuals and agricultural operators

If you grant the “Managing of tax affairs” authorisation to an accounting firm, the firm can see your personal tax details as well as your company’s details in MyTax.

The agent can access the following details in MyTax:

• income tax, inheritance tax, gift tax
• advance rulings, claims for adjustment and decisions relating to income tax
• decisions on claims for adjustment made by the Tax Administration and the Adjustment Board
• letters and decisions concerning taxation
• tax audit reports concerning business operations
• decisions on advance rulings made in MyTax.

Inside information according to the EU regulation on market abuse is not available in MyTax.

Please note that your agent cannot change your company’s bank account number in MyTax with the “Managing of tax affairs” authorisation if the company form is limited company, public limited company or non-profit association.

The “Managing of tax affairs” authorisation allows you to search the tax debt register for business operators’ tax debt details. You can search for the tax debt details of companies and organisations without authorisation.

The “Managing matters related to real estate taxes” authorisation corresponds to the “Filer of real estate details” Katso role.

The agent can view and update the real estate details used as basis for the authorising party’s real estate taxation. The agent can also request extended time for filing a real estate tax return and file a claim for adjustment of real estate tax.

How to grant an authorisation – see instructions for your situation

The “Filing of tax returns and other reports” authorisation corresponds to the following Katso roles:

• Filer of income tax returns
• VAT
• Employer’s contributions
• Filer of self-assessed taxes
• Account operator

This authorisation allows the agent to file tax returns and other tax-related reports on behalf of the authorising party. The “Filing of tax returns and other reports” authorisation also allows you to search the tax debt register for business operators’ tax debt details. You can search for the tax debt details of companies and organisations without authorisation.

The agent can use Lomake.fi and Ilmoitin.fi to file tax returns.

However, this authorisation does not allow the agent to use MyTax and access the authorising party’s tax data there.

How to grant an authorisation – see instructions for your situation

The “Application for VAT refunds from other EU member states” authorisation corresponds to the “Applicant for foreign VAT refund” Katso role.

The agent can submit and edit requests for VAT refunds to other EU countries on the behalf of the authorising party as well as view the messages they receive on the subject.

How to grant an authorisation – see instructions for your situation

Information available to the authorised person in MyTax

The agent can take care of all matters related to refund applications:

• file a refund request
• view the status of the request
• read messages and decisions published in MyTax.

The authorised person cannot see the taxpayer’s other tax matters in MyTax, such as tax payment details.

You can use the Katso ID

You can log in to MyTax with your current Katso ID until the end of 2020.

Foreign nationals will have to use the Katso authorisation, because they cannot grant Suomi.fi authorisations yet.

Katso authorisation can be used for M1SS and ALVEU matters.

The “Reports on construction work and tax number requests” authorisation corresponds to the “Supplier of comparison data” Katso role.

This authorisation allows the agent to

• file, view and edit household’s reports on construction work as well as contract and employee details related to construction
• request tax number details.

The authorisation for construction work reports and tax number requests is available to

• individual taxpayers
• self-employed individuals
• general and limited partnerships
• limited liability companies
• housing companies
• cooperatives.

How to grant an authorisation – see instructions for your situation

Information available to the authorised person in MyTax

The authorised person can see

• details of all reports on construction work filed with the ID of the party who has the obligation to provide information, regardless of who has actually filed the reports
• letters related to the content of construction work reports
• whether a tax number is in the public register of the construction industry.

When a company registers workers in the construction industry’s tax number register with their personal IDs, the company also receives information on the registered workers’ tax numbers.

The authorised person cannot see

• negligence penalties on construction reports
• letters concerning negligence penalties
• claims for adjustments
• letters concerning other matters than construction reports.

The “Reports on the VAT Special Scheme” authorisation corresponds to the “Applicant for foreign VAT refund” Katso role.

This authorisation allows the agent to

• request registration for the VAT special scheme
• take care of tax matters related to the VAT special scheme.

How to grant an authorisation – see instructions for your situation

Information available to the authorised person in MyTax

The authorised person can

• file, view and edit VAT special scheme returns
• see the amount of tax due and the reference and account numbers when filing a return, but not the taxpayer’s payment status
• respond to information requests
• see payment and filing reminders, information requests and decisions related to the special scheme
• see and edit the scheme registration details
• file a notification of termination to the VAT special scheme.

The authorised person cannot access

• any information about the taxpayer’s other tax matters
• the taxpayer’s tax payment status or payment details.

However, the authorised person can see the payable amount of tax filed in the VAT special scheme return.

You can use the Katso ID

You can log in to MyTax with your current Katso ID until the end of 2020.

Foreign nationals will have to use the Katso authorisation, because they cannot grant Suomi.fi authorisations yet.

Katso authorisation can be used for M1SS and ALVEU matters.

The “Applying for a refund of tax at source and a tax at source card” authorisation corresponds to the “Requests for refunds of tax at source/tax-at-source card” Katso role.

This authorisation allows the agent or representative to

• submit an application for refund of source tax (relating to received dividends, interest or royalty) that has been withheld in Finland and the amount has been too high
• submit an application, on behalf of a foreign corporate entity, for a tax-at-source card for dividends, interest and royalties to be received from a source in Finland

The authorisation is designed for users of Ilmoitin.fi.

How to grant an authorisation – see instructions for your situation

The “Managing matters concerning car tax” authorisation corresponds to the Tax Administration’s and Customs’ car tax roles in Katso.

This mandate allows the assignee on behalf of the assignor to manage matters concerning taxation of vehicles that are registered or taken into use for the first time in Finland, such as

• file car tax returns and respond to requests for additional information
• view car tax decisions
• pay car tax
• apply for a return of car tax for exported vehicles
• submit declarations of use for demonstration vehicles.

How to grant an authorisation – see instructions for your situation

The “Managing matters concerning excise taxation” authorisation corresponds to the “Tax Administration’s excise duty” role in Katso.

The authorisation allows the authorised party to use MyTax on behalf of the authorising party and

• file excise duty returns
• request tax refunds 
• place an excise duty guarantee for an individual consignment and gain a temporary registration for movement of goods in the EMCS system  
• view previous tax decisions or refund decisions
• take care of matters related to the register of aid recipients for excise duty (VATU)
• request excise duty authorisations and request registration.

The “Managing matters concerning excise taxation” authorisation does not allow the authorised party to

• manage payment matters in MyTax on behalf of the authorising party. The authorised company can pay the taxes, charges and guarantees in an online bank. The party making payments needs the following details from MyTax: the tax amount, the account number and the reference number for self-assessed taxes. 

In the online service for filing excise duties, you can take care of almost all the same matters as in MyTax as long as you have the “Managing matters concerning excise taxation” authorisation.

However, you cannot request

• tax refunds to energy-intensive companies
• excise duty authorisations on behalf of others.

You must make these requests by filing a paper form.

In the online service for filing excise duties, you can calculate and pay an excise duty guarantee for an individual consignment.

The authorisation can be used in MyTax from the beginning of 2021

• The online service for filing excise duties and the register of aid recipients for excise duty are available in MyTax from the beginning of 2021.
• However, excise duty returns for December 2020 must still be filed in the online service for filing excise duties in January 2021.

How to grant an authorisation for tax matters

The “Submitting notifications of movements of excise goods under duty suspension (EMCS)” authorisation corresponds to the “Tax Administration’s excise duty” role in Katso.

A party with this authorisation can manage the authorising party’s matters related to movements of goods subject to harmonised excise duty in the duty suspension arrangement.

EMCS service (service for reporting the movement of excise goods under duty suspension) transfers to MyTax in 2023.