A Systematic Withdrawal Plan (SWP) is simple in concept: you withdraw a fixed amount at a regular frequency. The challenge is that markets are not fixed—returns vary, and sequence risk can change outcomes dramatically.
The three variables that drive SWP outcomes
- Starting corpus (how much you have).
- Withdrawal amount/frequency (how much you take out).
- Return rate and volatility (how your corpus grows between withdrawals).
Sequence risk: the hidden factor
Two investors can earn the same average return over 10 years, but the investor who experiences poor returns early (while withdrawing) can run out sooner. This is sequence-of-returns risk.
How to model SWP longevity
Use the SWP Calculator to project how long your money lasts under different withdrawal and return assumptions. For a baseline growth-only view (no withdrawals), you can compare the same corpus in the Compound Interest Calculator.
Common mistakes
- Using overly optimistic returns.
- Ignoring inflation (withdrawals may need to rise over time).
- Setting withdrawals too high relative to corpus.
- Not maintaining a cash buffer for down markets.
Practical takeaway
An SWP plan is a balancing act: stability of income vs longevity of corpus. Model conservative scenarios, keep flexibility, and consider buffers to manage sequence risk.
FAQ
Next step
Use the calculators to model your scenario with consistent assumptionsthen compare outcomes across time horizons and contribution plans.