Although the BBC has declined to comment on the specific location, it is understood that the Chinese company is testing the service in an English-speaking market outside of the US.
The trial price for the subscription is $4.99 (£4.13).
Meta is apparently considering offering ad-free subscriptions to EU citizens in order to comply with the rules governing advertising in the EU.
TikTok presently shows tailored advertisements to all users who are at least 18 years old.
The news website TechCrunch stated that the test is on a small scale and that there is no guarantee that a membership would be made available worldwide.
For a monthly charge, websites like YouTube and X, formerly known as Twitter, currently provide less or no advertisements.
ByteDance, the parent company of TikTok, does not publicly disclose its financial data, but it is estimated to have generated $85 billion (£70 billion) in revenue in 2022.
According to research company Insider Intelligence, TikTok generated $9.98 billion in advertising revenue in 2016.
The Wall Street Journal reports that Meta, the company that owns Facebook and Instagram, is to charge European customers who choose not to receive personalized advertisements on its services.
According to reports, Meta apparently told EU regulators that users would pay about €10 (£8.68) a month for Instagram or Facebook on desktop and €13 a month for mobile without individualized advertisements.