How Big Should Your Emergency Fund Be?

The standard guidance is 3 to 6 months of essential expenses — the must-pay costs like housing, food, utilities, insurance, minimum debt payments, and transport. Three months is a reasonable floor for a dual-income household with stable jobs; six months is the common target for most people; nine to twelve months suits a single earner or anyone with variable or self-employed income. The calculator sizes the recommended target to your risk profile.

It depends on how stable and how replaceable your income is. A two-income household where both jobs are secure can lean toward three months, because if one income stops the other covers part of the gap. A single earner, a household with dependents, or anyone whose income swings month to month should aim for six to twelve months — the longer it would take to replace lost income, the bigger the cushion you need.

In a separate, liquid, FDIC-insured account you can reach within a day or two — a high-yield savings account is the usual pick. Keep it out of checking so it isn't spent by accident, and out of investments so its value isn't down 20% the week you need it. The whole point of an emergency fund is that it's there in full, immediately, on a bad day.

An emergency fund covers the unexpected — a job loss, a medical bill, an urgent repair. A sinking fund covers the expected-but-irregular — car registration, holiday gifts, an annual insurance premium — by saving a little each month so the bill doesn't blow up the budget when it lands. You need both: the emergency fund protects against shocks, sinking funds smooth out the predictable lumps.

Start with a $1,000 starter buffer as fast as you can, then build the full fund over 6 to 18 months depending on what your budget allows. There's no prize for rushing it at the expense of your other goals — but the sooner it exists, the sooner one unlucky month stops being a financial setback. Set the timeframe above to see the monthly contribution each pace requires.