United States
Hong KongEmergency funds: three to six months of what, exactly
Three to six months of non-discretionary expenses - not of income - held in cash or cash equivalents. Single-income households, variable income, poor job security and dependants all push towards the higher end or beyond it.
The most quoted rule of thumb in financial planning, and it is usually quoted wrong.
Of expenses, not income
Three to six months of non-discretionary expenses. Expenses.
A household earning a large income and spending modestly needs a smaller fund than the income suggests. One spending everything it earns needs a much larger one. Anchoring on income gets both wrong.
Non-discretionary means what continues if income stops: housing, food, utilities, insurance, minimum debt payments, transport, childcare.
What moves the number
| Towards three months | Towards six or more |
|---|---|
| Two incomes | One income |
| Stable salaried employment | Commission, self-employment, contract |
| Strong job market for the skill | Narrow or declining field |
| No dependants | Dependants |
| Good disability coverage | None or limited |
| Access to other liquidity | No other resources |
| Good health | Chronic conditions |
A self-employed sole earner with dependants and no disability cover is not a three-month case. Twelve months is defensible there, and the exam does test the extremes.
Credit is not liquidity. Lines get reduced or withdrawn precisely when conditions deteriorate, which is when the fund is needed. A question offering a home equity line as the reserve is testing exactly this.
Where it should sit
Cash or cash equivalents: savings, money market, short-term certificates. Available without loss and without delay. No lock-ups.
Not equities, because the market falls at the same time people lose jobs. Not retirement accounts, because early withdrawal carries penalties and taxes and the fund is meant to protect those accounts.
Where it fits in the order
After capturing an employer match. Around or alongside high-interest debt repayment, and reasonable people differ there.
The common resolution is a small starter reserve, then aggressive debt repayment, then the full fund. A client with no reserve who hits an expense will use the card again, which is the argument for doing something first.
Every dollar limit here is indexed annually and several were changed by recent legislation. Confirm the current figure against the IRS or the relevant authority before relying on it, and expect the exam to test the rule rather than the number.
Common questions
How big should an emergency fund be?
Three to six months of non-discretionary expenses - not of income. Housing, food, utilities, insurance, minimum debt payments, transport and childcare are what continue if income stops.
What pushes the number higher?
A single income, self-employment or commission income, a narrow field, dependants, limited disability cover, no other liquidity and poor health. Twelve months is defensible for a self-employed sole earner.
Can a line of credit serve as the emergency fund?
No. Credit is not liquidity, and lines get reduced or withdrawn precisely when conditions deteriorate. A question offering a home equity line as the reserve is testing this.
Where should the money be held?
Cash or cash equivalents - savings, money market, short-term certificates. Not equities, which fall when jobs are lost, and not retirement accounts the fund exists to protect.
Does the emergency fund come before paying off debt?
After capturing any employer match, and typically alongside high-interest debt. The common resolution is a small starter reserve, then aggressive repayment, then the full fund.