Defect displayed some forms incorrectly in the e-Tax software; fixed version released on November 2The software for sending tax forms had a bug: swap it for the fixed one
On November 2, 2026, the National Tax Agency announced a fix for a defect in the e-Tax software. The version updated on September 26, 2026 displayed some forms incorrectly, and the fix was applied at around 8:30 a.m. on November 2. The agency asks users to download the e-Tax software again before using it. It also states that filings and applications made while the defect was present contain no errors in their contents.
- September 26, 2026The e-Tax software was updated; this version displayed some forms incorrectly
- Around 8:30 a.m. on November 2, 2026The fix was applied
- After the fixUsers download the e-Tax software again before using it
Key points
- The e-Tax software updated on September 26, 2026 had a defect that displayed some forms incorrectly
- The fix was applied at around 8:30 a.m. on November 2, 2026
- The National Tax Agency asks users to download the e-Tax software again before using it
- According to the notice, filings and applications submitted with the affected version contain no errors in their contents
What to do in practice
- On any computer where the e-Tax software was installed on or after September 26, 2026, download the fixed e-Tax software again from the agency's e-Tax pages and reinstall it
- If the e-Tax software is installed on several computers in the office, list them and check which ones have been reinstalled
When companies and individuals report their taxes to the government, they can send the papers over the internet instead of carrying them in. The free software for this, called the e-Tax software, had a bug after its September 26 update: some forms were not shown in the right shape. The National Tax Agency fixed it on the morning of November 2 and asked users to download it again and swap it in. It also says that reports already sent are not wrong because of this.
- 1. What happenedThe software updated on September 26 sometimes showed forms in the wrong shape
- 2. What the government didIt released a fixed version on the morning of November 2
- 3. What users doDownload it again and swap it in
Points
- The software updated on September 26 had a bug that showed some forms in the wrong shape
- It was fixed at around 8:30 on the morning of November 2
- People using it should download it again and swap it in
What the words mean
- tax filing
- working out your own profit and tax and telling the government
- form
- a paper with a fixed layout that says where to write what
- National Tax Agency (NTA): National Tax Agency, e-Tax: Fix released for a defect in the e-Tax software
This article summarizes and explains materials published by government agencies and is not advice on any individual case. Rules can change, so for actual procedures and decisions always check the latest original materials and consult professionals such as tax accountants or labor and social security attorneys. English, Simplified Chinese and Traditional Chinese versions are translations prepared from the Japanese articles for convenience. If anything differs, the Japanese text and the original source take precedence.