Lagan College, Belfast will not use AQE or GL Assessment results to select any pupils for 2021 the BBC has reported.
The school would normally use academic selection to admit 35% of new pupils into year 8.
The school's full admissions criteria for 2021 is due to be published in the autumn and it will all be based on the criteria it had previously used to select 65% of pupils.
Lagan College also said that neither test would be held in the school in November and December 2020.
Registration was due to open on Wednesday 29th April but has now been delayed until Thursday 14th May the AQE have announced.
The AQE also announced that "Due to the circumstances caused by the continuing disruption of lockdown, AQE is moving completely to an online application process this year. It is hoped that the process will simplify the application procedure and will enable parents to upload electronic photographs, scanned birth certificates and pay online."
The online registration form will become available on the day registration opens. Registration is due to open on Wednesday 29th April 2020 although the date of registration opening may be delayed slightly.
The Education Minister Peter Weir has said it would be difficult to facilitate children sitting the transfer tests in their own primary schools the BBC has reported.
Peter Weir's comments were in reply to a parent who wrote to the minister asking him to intervene so primary seven pupils to sit the tests in the school they attend. Children taking the tests currently sit them in grammar schools or further education colleges.