台胞證一般每次簽發的有效期限為五年，到期後需重新申辦更新。若未及時更新，原本綁定的微信支付及銀行卡功能可能會失效。更新後的台胞證需攜帶至銀行進行重新激活，方可恢復使用相關金融功能。如果銀行卡本身也已到期，則需一併辦理換卡手續。

使用銀行卡綁定微信支付時，須特別留意是否仍持有有效的大陸手機門號。若原門號已無法使用，需重新申請新門號，並請電信業者開立相關證明文件，攜帶至銀行辦理資料更新。完成後，即可重新設定微信支付綁定，恢復電子支付功能。

目前中國大陸已全面推行無紙化作業，搭車、住宿等多項服務均可直接使用台胞證進行身份驗證。例如，訂購火車票或酒店時，只需於網路平台完成預訂，搭車當日可至火車站專用的自助機器刷台胞證即可通行；入住酒店時，亦無需支付押金，只需在櫃檯刷台胞證即可完成入住手續。

The Mainland Travel Permit for Taiwan Residents (commonly known as the "Tai Bao Zheng") is typically issued with a validity period of five years. Once expired, it must be renewed. If it is not updated in time, services previously linked to it—such as WeChat Pay and bank card functionalities—may become invalid. After renewal, the updated permit must be presented at the bank to reactivate financial services. If the associated bank card has also expired, it must be replaced at the same time.

When linking a bank card to WeChat Pay, it is essential to ensure that you still possess a valid mainland China mobile number. If your previous number is no longer active, you must apply for a new one and request a verification document from your mobile service provider. This document must then be submitted at the bank to update your account information. Once completed, you can rebind your WeChat Pay and resume using electronic payments.

Mainland China has now fully implemented a paperless system. Many services, such as transportation and hotel check-ins, can be accessed directly using the Taiwan Compatriot Permit. For instance, when booking train tickets or hotel accommodations online, you simply need to scan your permit at designated self-service machines at the train station to board, without the need for a physical ticket. At hotels, no deposit is required—check-in can be completed by scanning the permit at the front desk.