When can Apply N400/Citizen

[Waiting_Citizen]

Hello Gurus,
Could you please tell me when can we apply citizen/N400.
The rule is 90 days before the 5 years completion.
Some people did apply earlyar then that and they got approved.

Any idea/experiance, please share

Thanks a lot

 

[Bobsmyth]

Up to 90 days before 5th year LPR anniversary is correct. Applying any sooner will result in denial.