- Back taxes
- Back up
- "Back up the truck"
- Backdating
- Backed in
- Back-end load fund
- Back-testing
- Back-to-back financing
- Back-to-back loan
- Backup line
- Backup Line of Credit
- Backwardation
- Bad debt
- Bad delivery
- Bad title
- Bai-kai
- Bailing out
- Bailout bond
- Baker Plan
- Balance of payments
- Balance of trade
- Balance on goods and services
- Balance sheet
- Balance sheet exposure
- Balance sheet identity
- Balanced budget
- Balanced fund
- Balanced mutual fund
- Balloon interest
- Balloon maturity
- Balloon Payment
- Balloon Payment
- Ballot
- BAN
- Bank-based corporate governance system
- Bank anticipation notes (BAN)
- Bank collection float
- Bank discount basis
- Bank draft
- Bank holding company