Existing free tier account expiry on 31 August 2025 is it eligible to $200

Based on the information available, the $200 in credits (split as $100 initial credits and $100 additional credits for completing specific activities) is part of the enhanced AWS Free Tier program for new customers signing up for AWS.

Since you already have an existing free tier account that expires in August 2025, you would not be eligible for these new $200 credits by upgrading to a paid plan. The enhanced AWS Free Tier program with the $200 credits is specifically designed for new customers during their initial sign-up process.

When your current free tier expires, your account will automatically transition to standard pay-as-you-go pricing. Upgrading to a paid plan before your free tier expires would simply mean you'd have access to all AWS services, but it wouldn't grant you the new $200 credits that are offered to new customers.

The AWS Free Tier benefits run for exactly 12 months after account activation and cannot be extended regardless of usage levels. After this period, you'll be charged at standard rates for any resources you use, though you can still access the "Always Free" tier services that remain free indefinitely.
Sources
AWS Free Tier update: New customers can get started and explore AWS with up to $200 in credits | AWS News Blog
Free Tier Extension Request | AWS re:Post
How do you guys like the new free tier? | AWS re:Post