Step 1 of 6
Let's start with the basics
We'll use this to calculate how many years your savings need to last and when you can retire comfortably.
In today's dollars β how much do you expect to spend per year in retirement?
Step 2 of 6
Your investment accounts
Add each account. Give it a name you'll recognize, pick its type, and enter the current balance.
Select type to add an account
New account
e.g. "Fidelity 401k", "Vanguard Roth", "Amazon Stock"
Step 3 of 6
Your income in retirement
Tell us about money coming in during retirement β Social Security, pension, part-time work. This reduces how much you'll draw from savings.
New income source
Step 4 of 6
One-time financial events
Add windfalls you expect to receive β home sales, inheritances, business sales, or any lump sum. These are separate from recurring income.
Select event type to add
New event
This determines how the money is modeled going forward.
Step 5 of 6
Market assumptions
These drive the Monte Carlo simulation. The defaults are reasonable β most people can skip this step.
Annual market return target
Year-to-year variability
Annual cost-of-living increase
Keeps returns near target (0β1)
Return earned on windfall proceeds kept as cash. Default: 0% (conservative). Use 4β5% to model a high-yield savings account. Cash acts as a market downturn buffer β drawn more heavily when annual returns are negative.
Step 6 of 6
Review your inputs
Everything look right? We'll run 100 Monte Carlo simulations to estimate your retirement success rate.