GM Credit allows a Day Job check, right?

[Sliska Zafir]

Page 15-16 of SFS Roleplaying Guide says "The GM's character receives Downtime (see page 45)..."

On pg 45, one of the options is Day Job.

So as a practical matter, the GM should just roll when the players roll, and fill that box out, I take it?

[Belafon]

If your character is of a level appropriate for the chronicle, yes. The quote goes on to say

Guide page 16 wrote:

...and spends it upon applying the Chronicle sheet.

So if you were applying a higher level chronicle to a lower level character (such as a 5-6 chronicle to a level 3 character) you would wait until you actually applied the chronicle at level 5. You might have a higher bonus to your Day Job or something else you'd like to do with your Downtime by then.