The authority has also urged any Atol holders who have not yet submitted their applications to do so "without delay" ahead of the September 30 deadline.
Missing this deadline could have potentially dire financial consequences for smaller companies, who would no longer be able to sell holidays that fall under the Atol scheme.
"We do not intend to issue an extension to ATOL holders’ licences so encourage those who haven’t done so already to submit their applications now," said a CAA spokesperson.
MORE: CAA accused of botching new online Atol renewal system
The CAA said 950 out of 1,200 potential applicants had lodged renewals using the online system, introduced for the September round of renewals after a trial period earlier this year.
But concerns have been raised the new system is difficult to use and "currently not fully fit for purpose". This is affecting smaller Atol holders in particular, with one leading industry lawyer branding implementation of the new system "a complete disaster".
Some in the industry have urged the CAA not to penalise any companies whose applications are not completed by September 30 because of technical issues with the online system.
The CAA said in a statement: “As a responsible regulator, the CAA has a duty to ensure it has complete and accurate information before processing a renewal. Without this accurate information, there may well be a delay in the renewal process.
“If a new Atol is not granted before the current one expires, the business will no longer hold an Atol and will be unable to transact business which is legally required to be covered under Atol.”
The CAA added those companies that do not renew their Atols by the end of the month will have to stop taking licensable bookings and stop accepting payments for existing Atol bookings.
