How can I just pay and download Turbo 2021 Deluxe without starting for free?

Go to the site to purchase the download instead of the site for online software.

2021 TURBOTAX

CD/DOWNLOAD (This requires a full PC or Mac—-cannot be used on a mobile device)

https://turbotax.intuit.com/personal-taxes/cd-download/

You can also purchase the CD/download from various retailers such as Costco, Amazon, Walmart, Best Buy, Staples, Sam’s Club, etc. etc. etc.

This link Where can I obtain authentic TurboTax software? has a list of authorized TurboTax resellers.

When you use desktop software, there is an additional fee to e-file a state return.  You can avoid that fee if you print, sign and mail the state return.  The state e-file fee is $19.99 and increases in March.

https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-mac-software/00/25609

https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-windows-software/00/26175

I went to Staples online, got a discount and downloaded from there