NTT Docomoの解約方法（2026年）
NTT Docomoのプランは$0.00/月から。7ステップのガイドに従って約20分でサブスクリプションを解約できます — 引き止めオファーを避けるコツ付き。
更新日: 2026年4月
Set up d Account (if not done)
Before cancelling, ensure you have a d Account (dアカウント) registered. Go to https://id.smt.docomo.ne.jp/ and create or verify your d Account. You will need this to log in online. Also check that you have set up Passkey (パスキー) authentication, as it is required for the online cancellation portal.
Access Docomo Online Procedures portal
Go to https://www.docomo.ne.jp/support/cancel/ on a PC or smartphone. Click the button labeled 'ドコモオンライン手続き' (Docomo Online Procedures). The portal is available 24 hours except Tuesdays 10:30 PM – 7:00 AM JST for maintenance.
Log in with d Account
On the login screen, enter your d Account ID and password. If accessing from your Docomo SIM device, select 'ご自身でdアカウントを入力してログイン' (Enter your d Account manually). Complete Passkey or SMS two-factor authentication when prompted.
Navigate to cancellation procedure
After logging in, select '各種手続き' (Various Procedures) from the bottom navigation menu. Scroll down and find '解約' (Cancellation) or 'My docomoトップ' → '契約内容の確認・変更' (Check/Change Contract Details) and locate the cancellation option.
Select contract and confirm cancellation details
Choose the phone number or contract you wish to cancel. Review the displayed information including remaining installment payments, billing through the end of the current month, and any applicable fees. A ¥1,100 (tax included) contract termination charge applies only to contracts started on or after March 1, 2025 that are cancelled within one year with no usage activity.
Handle d Points and linked services
The portal will warn you that cancelling your mobile subscription may affect your d POINT CLUB membership and accumulated d Points. If you want to keep your points, ensure your d Account is fully set up as a standalone account before proceeding. Click '確認' (Confirm) to acknowledge.
Submit final cancellation confirmation
Review the final cancellation summary screen showing the effective cancellation date and final billing details. Click '解約する' (Cancel Contract) or '手続きを完了する' (Complete Procedure) to finalize. You will receive an email confirmation within approximately one hour.
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