MONEY REALITY · EMERGENCY FUND

Build the Fund Before Anything Else

The emergency fund is the single thing that separates the household that survives one bad month from the household that goes into credit-card debt and stays there. Three to six months of expenses, in a high-yield savings account, untouched until something breaks. This tool tells you the target, the runway, and which HYSA matters.

"Most personal-finance disasters are not catastrophic events. They are predictable expenses with no buffer in front of them."

Total monthly expenses ($)

Rent + utilities + food + insurance + minimum debt + transportation. The amount you need to keep the lights on.

Your current emergency savings ($)

In a savings account or HYSA — not investments.

Monthly savings rate toward emergency fund ($)

Even $100/mo gets you started. Auto-transfer the day after payday.

Job stability

Single-income household, variable-income worker, or sole-earner: aim for 6+ months. Stable W-2 dual-income: 3 months can work.

HYSA interest rate (%, current)

2026 best HYSAs: ~4.0–5.0% APY. Your bank's regular savings: probably 0.01%.

Your emergency fund targets

YOUR CURRENT RUNWAY

0 months

Time to target (at your current savings rate)

High-yield savings: which type

Vehicle	2026 rate	Pros	Cons
HYSA (online bank)	4.0–5.0% APY	FDIC insured. Same-day transfer to checking. No lockup.	Rate variable. Slow to wire.
Treasury Bills	~4.5–5.0%	State-tax-exempt. US-government backed. Ladder for liquidity.	Lockup until maturity (4 weeks to 1 yr). Brokerage account needed.
Money Market Fund	4.0–5.0%	Daily liquidity. Higher yield than most HYSAs.	Not FDIC. Mostly safe (no breaks since 2008) but technically not insured.
Regular bank savings	0.01–0.50%	Same bank as your checking. One login.	You lose ~$1,000-$2,000/yr of interest on a $30K balance vs HYSA.

The HYSA decision is real money: on a $20,000 emergency fund, the difference between a 0.01% bank savings and a 4.5% HYSA is about $900/year in interest. Over a decade, ~$10,000-$12,000 of free money lost to inertia. The HYSA opens in 10 minutes online (Ally, Marcus, Wealthfront Cash, SoFi, Discover, Capital One 360 are the typical top-rate options). Set up the auto-transfer once. Forget about it.

From the Money Reality series. All three editions teach the emergency fund as Step 0 of any financial plan — before the Roth, before investment, before any goal beyond minimum debt payments. The First Job Edition Ch 5 walks through exactly how to set up the HYSA + automatic transfer in the first week of a new job.

Illustrative only. HYSA rates change frequently; check current rates at depositaccounts.com or directly with the banks. Not financial advice. FDIC insurance covers up to $250K per depositor per bank.