News

 

Is the medical expense deduction process taking too long?
This year, we recommend using Mynaportal Integration which makes the procedure easier and faster. Please take advantage of this service.

 

① When filing using Mynaportal Integration
Mynaportal integration allows you to file from your computer or smartphone.
Since medical expense information can be automatically retrieved, the effort required for data entry and calculation is greatly reduced.
You also do not need to submit receipts, making the filing process smooth.
In addition, you can retrieve all medical expense information for the entire filing year (January through December) in one go.

 

＜Filing Steps＞
1.    Log in to Mynaportal.
2.    Retrieve medical expense information
3.    Link with e-Tax and submit
Reference: “Mynaportal.Integration Special Page”

 

②    Individuals filing by e-Tax
No paper submission is required for electronic filing.
You can download and use medical expense data from MY HEALTH WEB.

<Data Retrieval Method>
Starting January 1, 2026, you can download 2025 medical care cost data from “医療費控除申告用データを取得する (Retrieve Data for Medical Expense Deduction Filing
)” on the “医療費情報 (Details of Medical Care Costs)” menu of MY HEALTH WEB.
The schedule and data available for download are as follows:
 
<Download schedule>
January 1-15, 2026: data for medical care received during the period January-September 2025
January 16-February 11, 2026: data for medical care received during the period January-October 2025
February 12-March 12, 2026: data for medical care received during the period January-November 2025
March 13-March 31, 2026: data for medical care received during the period January-December 2025
 
 

③    When Checking the Total Annual Medical Expenses
Starting this fiscal year, you can now check the total annual medical expenses from the “Medical Expense Information” section in MY HEALTH WEB.
Please use this feature to confirm amounts and other details.

 

＜Steps to Check＞
Navigate to:
MY HEALTH WEB →医療費情報 (Details of Medical Care Costs) → “医療費控除申告用データを取得する (Retrieve Data for Medical Expense Deduction Filing)
A summary table will be displayed.
Note: Available from January 1, 2026.

 

④     Individuals filing paper final income tax returns
For those who cannot use Mynaportal integration or e-Tax, we will issue a paper-based medical expense notice.If you need one, please call 03-4554-3030.
See below for the period in which calls are accepted, sending schedule, and the medical care reflected in the data.
* Medical care cost information will be sent starting January 16, 2025.
 
<Period in which calls are accepted>
December 1, 2025-March 31, 2026, 9:00 am-5:00 pm weekdays
 
<Sending schedule>
Sent January 15-February 12, 2026: data for medical care received during the period January-October 2025
Sent February 13-March 12, 2026: data for medical care received during the period January-November 2025
Sent March 13-April 1, 2026: data for medical care received during the period January-December 2025

[Note]
Due to delays in billing by the medical care institution or other reasons, medical care costs may not be reflected in the data according to the schedules provided above.
For medical care costs not reflected in the data, please prepare medical expenses deduction details yourself based on receipts.
 
[Reference] Amended procedures for claiming medical expenses deductions
Beginning with final income tax returns for 2017, in place of attaching receipts when claiming medical expenses deductions, taxpayers must prepare medical expenses deduction details (link to the National Tax Agency website) and attach them to their final income tax returns.
* Although you do not need to attach receipts to the tax return, you are required to retain receipts for five years at home or elsewhere.
* You do not need to fill out medical expenses deduction details if attaching medical care cost information issued by the Health Insurance Society.
 
National Tax Agency website
Tax FAQ No. 1120: When you paid medical care costs (medical expenses deductions)