Some cases are taking well over a year to process.
The accommodation of undocumented Asylum Seekers cost the state €141 million last year according to Aontú.
While the state say the average figure for keeping an international protection applicant in accommodation is €18,500 per year.
It's also emerged that some cases are taking well over a year to process.
Leader of Aontú and Meath West TD Peader Toibin says the system must be improved: