I got ~900 for the Ontario Trillium Benefit last year. I did an estimate on CRA and came to ~1500, but it shows up around 600 when I'm using Turbo tax. what am I missing?

 The amount that you receive will depend on your:

• age
• income
• residence
• family size
• amount paid in rent or property tax

As we have no access to your personal information only the CRA will be able to give you the amount that you will be receiving. 

Thank you for choosing TurboTax.