Once EAD is received, can you start work?

[runwindows]

If I receive my EAD before the I485 is approved, can I start work?
If I485 is denied, do I have to stop working immediately until I refile?

 

[Jane Green]

If I receive my EAD before the I485 is approved, can I start work?

>>Yes

If I485 is denied, do I have to stop working immediately until I refile?

Your EAD will expire after one year. After that you have to file for renewal.
If your I-485 gets rejected for some reason you won’t be able to renew your Employment Authorization or stay in US legally for that matter.