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Free browser-only calculatorNo bank loginOfficial verification required

Online Bank APY Switch Break-Even Calculator

Estimate whether switching online banks for a higher APY is worth transfer delays, fees, tax drag and emergency-cash friction before verifying official bank terms.

APY gapfees + delayverify firstswitch

Browser-only calculator / generator

Estimated after-tax annual APY gain
Estimated transfer delay cost
Break-even months

Inputs stay in your browser. Use rounded assumptions, not account numbers, SSNs, passwords or bank screenshots.

How to use / 使用方法

  1. Enter conservative non-sensitive APY, balance, cost and delay assumptions.
  2. Use the break-even month estimate to decide whether a switch is worth verifying.
  3. Open official bank rate pages, account agreements, fee schedules and transfer-limit pages before moving money.

Official verification box / 官方验证盒

  • Verify current APY, promotional expiration, rate tiers, fees, transfer limits, hold rules and insurance coverage on official bank pages.
  • Do not rely on screenshots, old cached pages, forums, social posts or AI summaries for current account decisions.
  • If this page conflicts with official bank terms or your account-specific offer, official terms control.

FAQ

Does this show live APYs?

No. It uses your inputs only. Verify current rates directly with each bank.

Should I move my emergency fund for a small APY difference?

Use this as a planning prompt, then verify liquidity, holds, fees and your own risk tolerance. This page is not personalized advice.

Disclaimer

This is educational content and not personalized financial, tax, legal, credit, banking, insurance or professional advice.