227,186 asylum cases had entered an "Annual Fee Unpaid Case State" by July 21, raising fears that applicants could lose their claims, work permits and protection from deportation without realizing they owed the new charge.
The risk stems from a Trump administration rule requiring payment of a $100 annual asylum fee within 30 days of notice or automatic rejection, even as advocates say some notices arrive late by mail or not at all.
USCIS said it sent fee notices to more than 1.2 million asylum seekers and logged nearly 987,000 successful payments by July 15, alongside 816 payment failures.
Immigration groups led by the Asylum Seeker Advocacy Project are suing over the rollout, arguing notification glitches could wrongly push otherwise compliant asylum seekers out of the system as the administration tightens deportation policy.