The Tag reads
LIMITED TIME ONLY! File by 3/16 and save up to $25
Your discount is already in the purchase price for TurboTax Online Deluxe of $34.99, if you file by 3/16/17.
https://turbotax.intuit.com/personal-taxes/online/
On March the 17th the price increases to $54.99.
So, by filing on or before the 16th, you save $20.00.
I hope this helps
