Income planning starts with a target, then works backward using an assumed portfolio yield. This is a sizing exercise, not proof that a given income level is sustainable.
Yield changes the capital requirement
A higher assumed yield reduces the calculated capital, but it can also introduce more business, credit, concentration, options, or distribution risk. Do not select a holding only because it makes the target look easier.
Build from holdings upward
For an existing portfolio, calculate each holding's annual income as shares multiplied by annual distribution per share. Add those amounts for portfolio income, then divide by total market value for weighted portfolio yield.
Plan for timing and taxes
Monthly averages do not mean cash arrives monthly. Actual schedules are uneven, distributions can change, and tax treatment depends on account type and distribution character. Keep a cash buffer if bills require stable timing.
Primary sources
Tax rules, fund distributions, security prices, and company finances change. Verify current primary sources and seek qualified advice for your situation.