What is the value of attaching credit cards to your Taxumo account? Come filing your taxes, you need not manually input all of your card details over again.
To add a credit card/s to Taxumo, click on your name at the upper right portion of the site. After which, click on MY ACCOUNT.
Once in MY ACCOUNT, click on ADD CARD.
Just add your information...
And then you're done!
Hope this helps!