Terence Wilson wrote:
On a few occasions I have filed a departure procedure to a nearby
intersection just to get on top (comments section reads "IFR to VFR on
top"). After breaking out of the clouds and advising ATC of the bases
and tops, I usually cancel IFR and proceed "own nav" with flight
following. Which brings me to my question, if I cancel inside Bravo
airspace do I have an implicit clearance because I got there under IFR
in the first place, or is it common practice for ATC to give an
explicit clearance?

I ask because I'm a new instrument rated pilot and I'm pretty sure
both scenarios have happened to me recently. Thanks in advance.

You have no idea of what ATC needs to do with you if you cancel on an
IFR climnb to on-top. So, keep it simple, and stay with the IFR
clearance until either above or otherwise clear of the Class B airspace.