Unit 2: Banking and Payment Tools
Last updated 10/14/2026 by
Andrew Latham
Summary:
Where your money sits decides what it costs you and what it earns. Overdraft fees, ATM fees and accounts that pay almost no interest quietly drain young people’s money, and payment apps make it easy to lose money you cannot get back.
This is Unit 2 of 9 in Money 101 by SuperMoney, a free personal finance course. It takes about 1.5 weeks in a classroom, or 45 to 90 minutes on your own. Then take the five-question quiz below. Score 4 of 5 to mark the unit complete.
What you’ll learn
- Compare checking, savings and high-yield savings accounts and choose one of each.
- Explain FDIC and NCUA insurance and the $250,000 limit.
- Avoid overdraft and non-sufficient funds fees.
- Explain the differences between debit cards, credit cards, prepaid cards and payment apps.
- Set up direct deposit, alerts and automatic transfers.
Key terms
- Checking account: An account for everyday spending, with a debit card, bill pay and direct deposit. Usually pays little or no interest.
- Savings account: An account for money you are not spending soon. Pays interest.
- APY: Annual percentage yield: the interest a savings account pays in a year, including compounding.
- FDIC / NCUA insurance: Federal insurance that protects deposits at banks (FDIC) and credit unions (NCUA) up to $250,000 per depositor, per institution, per ownership category.
- Overdraft: When you spend more than is in your account and the bank covers it, often for a fee.
- Credit union: A member-owned, not-for-profit financial institution. Often lower fees and loan rates.
- P2P payment: Person-to-person payment apps. Payments are usually instant and very hard to reverse.
Lesson 2.1: Choosing where your money lives
Most people need two accounts: a checking account for spending and a savings account for money that should not be spent this month. Keeping them separate makes saving automatic and protects savings from everyday spending.
Banks, credit unions and online banks all offer both. Compare them on four things: monthly fees and how to avoid them, minimum balance requirements, ATM access and fees, and the APY on savings. Online banks and credit unions often pay much higher savings rates than large traditional banks, because they have fewer branches to run.
Check that the institution is FDIC (banks) or NCUA (credit unions) insured. Insured deposits are protected up to $250,000 if the institution fails. Many apps are not banks. They hold your money at a partner bank, and if the app itself fails it can take time to get your money back. Read where your money is actually held.
Lesson 2.2: Fees and how to avoid them
An overdraft happens when you spend more than you have. Some banks decline the purchase. Others pay it and charge a fee, which can be $25 to $35 per transaction at some banks, even if the purchase was a $4 coffee. Several overdrafts in one day can add up to more than $100.
To protect yourself, opt out of overdraft coverage for debit card purchases, so a purchase is declined instead of charged a fee. Turn on low-balance alerts. Link your savings account as a backup. Time your bill autopays for the day after payday.
Other fees to watch: out-of-network ATM fees (charged by both the ATM owner and your bank), monthly maintenance fees, paper statement fees and foreign transaction fees. Most can be avoided by choosing the right account.
Lesson 2.3: Cards and apps
A debit card spends money already in your checking account. A credit card borrows money you must pay back (Unit 4). A prepaid card spends only what you loaded onto it. Credit cards have the strongest legal protection against fraud. Debit card fraud protection is weaker the longer you wait to report it, so check your account often.
Payment apps such as Zelle, Venmo and Cash App move money in seconds. That speed is the risk. Once you send money to the wrong person or to a scammer, it is often gone for good, because you authorized the payment. Only send money to people you know in person, double-check the recipient, and never use payment apps to pay a stranger for something you have not received.
Worked example: the cost of a $4 coffee
Assumes a $35 overdraft fee and that the account was $2 short.
| Coffee | $4.00 |
| Overdraft fee | $35.00 |
| Real cost of the coffee | $39.00 |
| Effective markup | 875% |
Takeaway: Opting out of debit overdraft coverage would have declined the purchase at no cost.
Activity: Pick your bank
Find the account disclosures for three real institutions: a large bank, a local credit union and an online bank. Fill in the table and choose one checking and one savings account. Explain your choice in two sentences.
- Monthly fee, and how to avoid it
- Minimum opening deposit and minimum balance
- Overdraft fee and whether you can opt out
- ATM network and out-of-network fee
- Savings APY
- FDIC or NCUA insured?
The printable worksheet and the sample documents for this activity are in the Money 101 course book (PDF).
Reflect: What is one fee you or your family has paid that could have been avoided? What would have prevented it?
Up next: Unit 3: Budgeting and Saving | Previous: Unit 1: Earning Income, Paychecks and Taxes | Course overview
Andrew is the Content Director for SuperMoney, a Certified Financial Planner®, and a Certified Personal Finance Counselor. He loves to geek out on financial data and translate it into actionable insights everyone can understand. His work is often cited by major publications and institutions, such as Forbes, U.S. News, Fox Business, SFGate, Realtor, Deloitte, and Business Insider.
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