Do I need an accountant ($200+GST) to complete my simple BAS?

Hey guys,

I'm not sure how the whole self employed thing works, but i've registered for GST and sent two invoices for my work, and got paid on both the invoices.

My accountant knows I don't have any expenses (my laptop is $200 - I wouldn't say I use have many other expenses related to my work).

My accountant charges $200 + GST which is says is very cheap for a BAS

When he prints out my BAS to PDF, he sends it to me.

It appears he just completed 4-5 fields (about 10 mins work)

When I log in to mygov. Those exact fields appear in my interface.

Is it something I could also do? (complete 4-6 fields) and hit 'Submit' ?

It seems like i'm just declaring how much money I charged my client, and how much was GST.

The website then sends the information to the ATO, and I just pay the GST portion via BPAY - is that right?

Fill out the amount I got paid Specify the GST amount Wait for ATO to confirm it and send me a "bill" for the GST component? Is that all there is to it?