No, the trademark registration fee is not a one-time payment "for life." The fee paid for trademark registration generally covers the initial application and registration process, which grants you exclusive rights to use the trademark for a specified period. However, to maintain the validity and protection of your trademark, ongoing maintenance fees or renewal fees are typically required.
Trademarks typically have a limited term of protection, which varies depending on the jurisdiction. In many countries, the initial term is usually 10 years, but it can be longer or shorter depending on local laws. To continue enjoying the exclusive rights provided by the trademark registration beyond the initial term, you will need to periodically renew the registration by paying the required renewal fees.
The renewal fees are necessary to keep the trademark in force and maintain its legal protection. Failure to pay the renewal fees within the specified timeframe can result in the expiration and removal of the trademark from the register, potentially leaving it vulnerable to infringement.