The Parameters tab controls the assumptions that shape every cycle: how many years the simulation runs, when retirement starts, how returns and inflation are sampled, the tax jurisdiction, and the withdrawal strategy that decides where money is pulled from each year.

Core fields

• Simulation Years. Length of retirement horizon.
• Retirement Year. Anchor for spending start and retirement-linked timing.
• Inflation Settings. Constant Inflation or Historic Inflation. Optional: Offset by a percentage.
• Returns Settings. Historic Returns or Constant Returns (equity / dividend / bond / cash rates).
• Tax Jurisdiction. Controls which tax country and account types are available.

Withdrawal strategy

The Withdrawal Strategy section decides where the simulation pulls money from each year to cover spending and taxes. You can choose between two modes: Bucket Strategy or Advanced Phases.

Bucket Strategy

The Bucket Strategy divides your accounts into three time-horizon buckets, each with its own role in funding spending and weathering market downturns:

• Bucket 1 (Cash/Safety). 1–3 years of spending. All withdrawals come from here first.
• Bucket 2 (Income). 3–10 years. Bonds and moderate-growth holdings.
• Bucket 3 (Growth). Long-term equity growth. Refills the other buckets over time.

Dividends from Buckets 2 and 3 are automatically swept into Bucket 1. In bear markets, the strategy stops selling equities and lets Bucket 1 draw down. Protecting the growth bucket until markets recover.

Advanced Phases

Advanced Phases lets you dictate the exact order accounts are drawn down. Drag accounts into Phase 1, Phase 2, and so on. Phase 1 accounts are drained to $0 before the simulation moves to Phase 2. While a phase is active, the rebalancer tries to keep contributions inside that phase unless it has no choice. Early-withdrawal-penalty avoidance is always prioritized within a phase.