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13-Week Cash Flow Forecast Tool — Free, Online

Free 13-week cash flow forecaster. Opening balance + weekly inflow + weekly outflow → week-by-week running balance and lowest projected balance.

13-Week Cash Flow Forecast

End of week 13 balance

$35,000

Lowest weekly balance

$35,000

Net weekly delta

$-5,000

WkInflowOutflowBal
1$25,000−$30,000$95,000
2$25,000−$30,000$90,000
3$25,000−$30,000$85,000
4$25,000−$30,000$80,000
5$25,000−$30,000$75,000
6$25,000−$30,000$70,000
7$25,000−$30,000$65,000
8$25,000−$30,000$60,000
9$25,000−$30,000$55,000
10$25,000−$30,000$50,000
11$25,000−$30,000$45,000
12$25,000−$30,000$40,000
13$25,000−$30,000$35,000

13 weeks (~one quarter) is the standard horizon for short-term cash planning. If any week dips negative, you need to bring in receivables earlier, delay payables, or arrange a short-term credit facility.

About this tool

The 13-week horizon

13 weeks (one quarter) is the standard short-term cash-planning horizon. Long enough to see seasonal cash crunches; short enough to react. If any week dips negative, accelerate receivables, slow payables, or arrange short-term credit.

How to use the 13-Week Cash Flow Forecast

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the 13-Week Cash Flow Forecast above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the 13-Week Cash Flow Forecast.

Is the 13-Week Cash Flow Forecast free to use?

Yes. The 13-Week Cash Flow Forecaston 7BusyBoss is completely free — no signup, no paywall, no usage cap.

Do I need to sign up to use the 13-Week Cash Flow Forecast?

No. The 13-Week Cash Flow Forecastworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.

Does the 13-Week Cash Flow Forecast work on mobile?

Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.

Is my data safe when I use the 13-Week Cash Flow Forecast?

Yes. The 13-Week Cash Flow Forecastruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.

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