How can I input a GL GST total from 2019. We started QBO Jan 1/20. GST for 2019 was paid in 2020.

Hi windspiritoperat:

If you go to New-> Journal Entry, and create an entry against your GST/HST account, you'll be able to select 'special' tax recording options, this way you can record the tax owing from the prior year, recording it as an 'accounts payable' to 'Revenue Canada/Receiver General'.  Then you just record the payment as normal.

Hope this helps!