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Practical answers to everyday money questions. Explore a topic, compare a worked example, or find the detail you need.

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20 guides

Housing

Housing

One month free: advertised rent versus actual payments

Compare lease totals, payment timing, mandatory charges and renewal without a concession.

Paychecks & taxes

Paychecks & taxes

Same salary, higher Social Security tax in 2027?

Compare unchanged covered wages and distinguish annual tax from paycheck timing.

Everyday credit

Everyday credit

Groceries on pay in four: when payments overlap

Connect Federal Reserve research with a weekly shopping and repayment calendar.

Loans

Loans

Lower car payment, higher total cost?

Compare remaining payments, a lower interest rate and refinancing fees.

Loans

How are loan payments calculated?

See how principal, rate, and term determine a fixed monthly payment.

Loans

How to read an amortization schedule

Understand payment, principal, interest, and remaining balance in every row.

Loans

How extra payments change a loan

Compare payoff time and interest when extra money reduces principal.

Saving goals

Saving goals

Emergency fund vs. sinking fund

Separate available emergency savings from money already reserved for future expenses.

Saving goals

How much should I save each month?

Turn a target and deadline into a recurring contribution.

Saving goals

How long will a savings goal take?

Start with what you can save and estimate the first period that reaches the goal.

Saving goals

Weekly vs. biweekly vs. monthly savings

Compare frequencies while holding the goal and other assumptions constant.

Purchasing power

Purchasing power

Does a 4% savings APY beat inflation after tax?

Follow a $10,000 example from gross interest to after-tax purchasing power.

CDs

CDs

Can a CD penalty reduce your original deposit?

Separate earned interest, contractual penalties and the net amount received.

CDs

How is CD interest calculated?

See how one opening deposit grows across a fixed term.

CDs

CD APY vs. interest rate

Understand standardized annual yield and the other terms worth checking.

CDs

6-month vs. 12-month CD

Find the renewal APY that makes two six-month terms match one full year.

Compound growth

Compound growth

What is compound interest?

See how interest can earn interest and which assumptions change an estimate.

Compound growth

How monthly contributions grow

Separate the amount deposited from projected growth and see why time matters.

Compound growth

Compounding frequency explained

Compare annual, monthly, and daily compounding with the same nominal rate.

Compound growth

Compound interest examples

Reproduce three scenarios and learn what each result does and does not show.