Long horizonDecumulation

Retirement Withdrawal Planner

Model portfolio withdrawals with starting balance, expected return, inflation-linked spending, and optional fixed horizon — see balance path and failure years.

Initial withdrawal rateInflation on spendingBalance trajectory

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Currency

Decumulation

Withdrawal policy

Constant-percent withdrawals are taken from the prior year-end balance; fixed withdrawals grow with inflation. Returns are deterministic net of optional fee drag.

Advanced mode

Subtract a flat annual fee drag from the return.

Results

Trajectory

Ending balance (illustrative)

LKR 1,244,886.35

Depleted by year

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Perspective

Sequence of returns matters in the first decade

Constant-return models understate risk; early bad returns can permanently impair a portfolio.

Use this as a starting point for discussion, not a guarantee of outcomes.

FAQ

Common questions

Is the 4% rule used here?

You choose withdrawal and inflation assumptions. The 4% rule is one possible starting heuristic, not a universal truth.

Does this include taxes?

Not unless you model after-tax spending explicitly in the withdrawal amount.

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