Annual Cash Flow Map

Monthly Average Net spreads Quarterly Expenses and Annual Expenses evenly across all 12 months, which is mathematically tidy but doesn't reflect how those bills actually arrive. Worst Month Net instead models the single worst-case month where a quarterly payment and the once-a-year annual expense both land at the same time, subtracting their full amounts from just that one month's income — the gap between the two numbers is exactly the cash buffer you'd need to smooth over that collision.

Both are treated identically in every calculation on this page — they're summed together into a single "base monthly expense" figure that recurs every month. The distinction exists only for your own bookkeeping clarity: Monthly Fixed Expenses is meant for costs that don't change month to month (rent, subscriptions), while Monthly Variable Expenses is meant for costs that fluctuate (groceries, dining) but that you're entering as a typical monthly average.

No — Quarterly Expenses is treated as a cost that hits four times per year (once per quarter), so Annual Total Expenses multiplies it by 4, not 12. It only enters a single month's total (Worst Month Net and Monthly Average Net) at its quarterly cadence, not as if it recurred monthly.

Annual Total Income is calculated purely from Monthly Income times 12 — it has no dependency on any expense input. Quarterly Expenses and Annual Expenses only affect the expense side of the ledger (Annual Total Expenses, Annual Net Cash Flow, Monthly Average Net, and Worst Month Net), never the income side.