How Many Rental Properties Do I Need to Retire?
Start with the monthly income you want, then test how much each rental property might contribute.
A rough estimate divides your remaining income target by net monthly cash flow per additional property and rounds up. Existing portfolio cash flow reduces the gap. A property with no positive cash flow cannot close that gap simply by buying more of the same.
Turn the estimate into a scenario
For example, £3,000 a month requires ten properties producing £300 each before tax, if you have no existing rental income. That is arithmetic, not a recommendation or a prediction. Purchase timing also depends on deposits, taxes, reserves and retained cash.
Targets are fixed money amounts, not inflation-adjusted retirement spending. Mortgage maturity, voids, tax and repairs may reduce dependable income. This is scenario modelling rather than financial advice.
Adjust capital, prices and mortgage assumptions or check cash flow per property.