Cash flow
The movement of money into and out of your accounts over a period, and whether more comes in than goes out.
What it means
Personal cash flow compares money coming in (paychecks, side income, benefits) with money going out (bills, purchases, debt payments, savings transfers) over a period such as a month. If inflows exceed outflows, cash flow is positive; if not, it is negative and the gap is usually covered by savings or borrowing.
Cash flow is about timing as well as totals. Someone can earn enough over a year but still run short in a month when a big bill lands before payday. Tracking cash flow helps spot both problems.
Formula
Net cash flow = Total inflows − Total outflows
- Total inflows = all money received in the period
- Total outflows = all money spent or paid out in the period
Example
Suppose $5,000 arrives in your account in a month and $4,600 leaves for bills, spending and debt payments. Your net cash flow is +$400 for that month.
How it’s used
- Building or checking a monthly budget
- Planning around irregular income such as freelance work
- Figuring out how much can go toward savings or extra debt payments
Good to know
- Line up bill due dates with paydays where possible to smooth timing gaps.
- Repeated negative months are an early warning before debt builds up.
Related terms
Educational information only, not financial, tax or legal advice. Rules, limits and rates change; check the IRS, your lender or plan, or a qualified professional before acting.