HOW DOES TURBO TAX DETERMINE THE COST OF FILING MY TAX RETURNS

[VolvoGirl]

By the version you use.  And State is an additional charge in Deluxe and above.  The price is determined at the time you file or print.  The early prices expired March 1.  You could have paid before then to lock in a lower price. See prices here. Click on state additional.
Https://turbotax.intuit.com/personal-taxes/online/

 How to review your fees  https://ttlc.intuit.com/replies/4202093

How to remove the various fees        https://ttlc.intuit.com/replies/3301994

[VolvoGirl]

If you select to have the fees deducted from your federal refund there is an EXTRA 39.99 Refund Processing Service charge (44.99 in California).