Auditing card transactions for fraud and policy violations is a specialized task, one that auditors and finance professionals are trained to handle.

Bilt said it's developing "Bilt Card 2.0," which will include a no-annual-fee option as well as two higher-tier products with annual fees of $95 and $495 respectively.

The credit cards with the highest annual fees often have the biggest rewards. With these three cards, you can earn back the ...