Mail sender can inquire about registered mail that hasn't been received on time.
The deadline for domestic registered mail inquiry is 6 months after the sending date.
    1. The inquiry should be made with a photo of the original cover of the mail in question.
    2. If there is a receipt, you should present it for verification by the original sending post office.

Basic inquiry is free. Inquiry results sent by fax is NT$ 10 per mail (express mail excluded). International mail is basically free, but inquiry by telecom methods (such as fax, teletype, etc.) or express mail, you will be charged with their respective service charges.

The sender should prepare the photo of the cover of original mail and the original receipt (for registered mail) to process in the original sending post office. The following information is required: type of mail, sending date, sender name, sender address, recipient name, recipient address, and mail's serial number by post office (if any).

For domestic mail: 6 months from the sending date; for international parcel and international registered mail: 6 months from the second day after the sending date; international express mail: 3 months from the second date after the sending date. The post office will turn down inquiry and not be liable for compensation when overdue.

Inquiry by fax or inquire results sent by fax is NT$ 10 per mail, express mail excluded, as the cost of using telecommunication facilities.

Please check with post office's express mail unit (TEL: 03-3833776 ext. 251-254) at Taoyuan International Airport. You can also fill out an inquiry form at the original sending office and let them handle it for you.

Please check with post office's international parcel unit (TEL: 03-3833776 ext. 271-273) at Taoyuan International Airport. You can also fill out an inquiry form at the original sending office and let them handle it for you.

If the registered mail sent to foreign countries has been confirmed lost after inquiry, the sender should bring original receipt, personal ID and personal stamp to the processing post office to file a compensation claim form and mail lost compensation receipt after receiving notice from the post office.

No more than 30 SDR (approx. NT$1,410) per piece. Mail sent after Jan. 1, 2001, can get a refund on paid postage deducted by registration fee and insurance fee.

For lost, damaged or content item-missing parcels sent to foreign countries. After receiving the notice from the original sending post office, the sender should bring receipt, ID document and personal stamp to process at the original sending post office.