APYCalculator.com
Compound interest & savings tools
Compare HYSAs →
Home › Guides

Guides

Long-form reference content for the questions where the short answer is wrong. Math-driven, source-cited, and updated with each rate cycle.

APY vs APR: How They Differ and When Each Matters
3 min read
Fundamentals
A clear, math-driven explanation of the difference between APY and APR, with worked examples for savings, loans, and credit cards.
FDIC and CDIC Insurance: What Is and Is Not Covered
3 min read
Safety
A practical guide to deposit insurance in the US (FDIC) and Canada (CDIC) — coverage limits, ownership categories, and what to do if you exceed the limit.
When CDs Beat High-Yield Savings Accounts
4 min read
Strategy
CDs lock your rate; HYSAs lock nothing. The framework for deciding which is right given the rate environment, your time horizon, and liquidity needs.
How Savings Interest Is Taxed in the US and Canada
4 min read
Tax
How interest from savings accounts, CDs, money market accounts, and Treasury bills is taxed federally and at the state/provincial level, with guidance on tax-advantaged accounts.
Calculators
  • APY Calculator
  • Compound Interest
  • Savings Goal
  • CD Ladder
Accounts
  • High-Yield Savings (HYSA)
  • Certificates of Deposit
  • Money Market
  • Cash Management
  • Treasury Bills
Rates
  • Compare All Rates
  • Best HYSA Rates
  • Best CD Rates
  • HYSA vs CD
Guides
  • APY vs APR
  • FDIC & CDIC Insurance
  • When CDs Beat HYSAs
  • Tax Treatment
About
  • About
  • Editorial Standards
  • Advertising Disclosure
  • Contact
Legal
  • Privacy Policy
  • Terms of Use
  • Cookie Policy

APYCalculator.com is an independent commercial website that earns revenue through advertising and affiliate partnerships. The calculators on this site provide estimates for illustrative purposes only and do not constitute financial advice. Actual returns will vary based on the specific terms of any savings account, market conditions, and applicable taxes. Always verify current rates and terms with the issuing financial institution before making decisions. We are not a bank and do not accept deposits. Consult with a qualified financial advisor before making investment or savings decisions.

© 2026 APYCalculator.com. All rights reserved.