Overview
Why the number changes after you buy
Current yield answers the question, “What would this stock pay if I bought it today?” Yield on Cost answers a different question: “What is my original capital earning now?” Those numbers diverge when a company raises its dividend or when the market reprices the stock far above your purchase price.
That makes Yield on Cost especially useful for long-held dividend positions. It reveals how powerful your existing income engine has become without requiring more capital. It is not the only yield worth tracking, but it is often the one that best reflects what your portfolio is doing for you.
Key Concepts
Five ways Yield on Cost helps you read a mature portfolio
- Yield on Cost is your annual dividend divided by your original purchase price, not today's market price.
- It rises every time a company increases its dividend while your cost base stays fixed.
- A stock yielding 5% today may be yielding far more on your own cost if you bought years ago at a much lower price.
- It is especially powerful in a TFSA because the growing income stream remains sheltered as it compounds.
- Current yield still matters for new buys. Yield on Cost matters most for understanding what an existing holding is doing for your income plan.
Planning Use
How to use it without fooling yourself
Yield on Cost is not a reason to ignore valuation or hold a weak position forever. It is a way to understand the productivity of capital you already deployed. A high Yield on Cost can justify patience in a strong holding, but new capital should still be judged on today's yield, dividend quality, and after-tax fit.
That is why Yield on Cost works best beside tools that also show current yield, tax treatment, and account-specific results. The point is context, not nostalgia.
Run Your Numbers
Compare what you would earn today against what your original capital is already earning.
Dividend CalculatorPrimary Tool
Calculate your after-tax dividend yield on both current price and your original purchase price, then see how the two differ.
Dividend Compare Engine
Compare two holdings side by side so current yield, Yield on Cost, and dividend quality can be judged together.
DRIP Engine Simulator
Use reinvestment modeling to see how a strong dividend growth path can support a much higher Yield on Cost over time.