Explore the question, one assumption at a time
Enter savings you could actually use, then any take-home income that would continue after quitting. Split expenses into essentials and discretionary spending. Move the lifestyle slider to see what keeping more or less discretionary spending does to your timeline.
Include costs that might change when you leave, such as health coverage, travel, or a move. The reserve is a reference point you choose; it does not prevent the model from drawing down the remaining savings.
How the timeline works
First-month expenses = essentials + discretionary expenses × lifestyle percentage + added monthly costs. Each later month increases this total by the monthly equivalent of your annual inflation assumption.
Starting savings = savings minus one-time costs, floored at zero. Each month, income is added and expenses are deducted. Cash cannot go below zero; uncovered expenses accumulate separately as unfunded costs. They do not accrue interest. Income stays fixed, and the reserve stays at its original dollar amount.
Runway and reserve milestones assume net spending is spread evenly within each month. They are approximate, not bill-by-bill payment dates. A milestone outside your chosen timeline is shown as not reached, never as an unlimited runway.
A simple example
With $30,000 saved, $500 in monthly income, $3,000 in monthly expenses, and 0% inflation, savings cover 12 months. A $6,000 reserve is reached after 9.6 months. Positive inflation brings those milestones forward.
Assumptions and limits
This model covers 1–120 months in US dollars. It does not include investment returns, taxes beyond the take-home income you enter, changes in employment, benefits eligibility, borrowing, or unexpected bills. All expense categories rise at the same inflation rate, from 0% to 25% annually. Example inputs are illustrations, not forecasts or recommendations.
Common questions
Does monthly income mean my current salary?
No. Enter only income you expect to continue during the break, after taxes. Use zero if you expect none.
What if income covers my expenses?
Savings may hold steady or grow initially. With inflation, spending can later exceed fixed income. The simulator checks every month of your chosen timeline.
What happens when savings reach zero?
The timeline keeps showing the expenses that remain unfunded. It does not assume you can borrow money or continue the same lifestyle without another source of funds.
Terms used here
- Runway
- Time until accessible savings are exhausted.
- Reserve
- A savings level you want to track.
- Inflation
- The annual increase you assume for expenses.
- Unfunded costs
- Expenses not covered by modeled savings or income.