The 1st box includes the GST collected and the 2nd includes the amount submitted to CRA
1 - Amount of GST collected from your clients.
2 - The amount you submitted to CRA
1 minus 2 = the extra amount you received added to income.
Too bad CRA doesn't simply ask for these two amounts under the Quik file method:
1- GST collected from clients
2 - GST submitted to CRA
The wording drove me nuts so I posted the original question. Have since confirmed it works this way and the math makes sense.
