Playbooks

Build an emergency fund

For many households, a workable sequence is a small starter buffer, then high-interest debt if the rate is severe, then 3 to 6 months of essential spending in cash. Uneven income calls for more months, not a different idea.

Arc · Published September 18, 2026 · Updated September 18, 2026

Who this is for

Households whose cash would not cover a job gap or a large bill. If you already hold a year of expenses, this playbook is finished.

Why it matters

Without a reserve, the next shock becomes credit-card debt or a forced sale of investments. Either one can erase a year of careful saving.

A common sequence

Move one month of essentials into a separate savings account.
If card rates are high, split new money between that buffer and the cards rather than saving a full year of cash at 0% while paying 20%.
After the worst debt is down, finish 3 to 6 months of essentials. Use 6 to 12 if one job supports the household or income swings.
Automate a transfer the day pay lands, before spending adjusts to fill the account.

Exceptions

Do not skip a workplace match that is about to expire for the year if you can capture it and still eat. Do not invest the emergency fund to “put it to work.”

Worked example

Essentials are $4,000 a month. A 6-month target is $24,000. With $6,000 already saved and $500 a month available, the gap is 36 months. A tax refund or a bonus aimed at the gap shortens that without touching the retirement contribution.