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Cash Flow Forecast Calculator – Joybooks

Cash Flow Forecast Calculator

Enter your starting balance and monthly income & expenses. We’ll calculate Net Cash Flow and Cumulative Balance for 12 months, flag low-cash months, and chart your runway.

Income = input • Expenses = input • Net = Income − Expenses • Cumulative = previous month’s balance + current net.

Month Income Expenses Net Cash Flow Cumulative Balance
Totals
Ending Cash (Mo 12)
Lowest Balance
Negative Months
Avg Monthly Net

Cash Balance Over Time

Tips

If you don’t have exact numbers, start with averages and adjust later. For seasonal businesses, increase income in busy months and reduce it in slow ones. Your entries autosave in this browser.

The calculator updates in real time, giving you a clear picture of how your cash will change month by month. If you see any months dipping into the negative, you’ll know early enough to make adjustments. Use these insights to plan ahead, avoid cash surprises, and share a simple forecast with your team or CPA.

Make the Most of Your Results

Download Your Free Playbook

Want extra guidance? We’ve created a short PDF guide — The Small Business Cash Flow Playbook. Inside, you’ll find practical tips, examples of common mistakes to avoid, and a survival checklist you can use every month.

DOWNLOAD THE FREE PLAYBOOK

Don’t worry if you don’t have exact numbers. Using averages is a great place to start, and you can always adjust later. If your business has busy and slow seasons, reflect that in your entries so your forecast feels more realistic. Once you’re done, you can download a copy of your forecast as a PDF to keep for reference or to share.

Quick Tips for Better Forecasts

Next Steps with Joybooks

The calculator and playbook are a great start, but if you want ongoing clarity, we can help. At Joybooks, we specialize in keeping your books clean, accurate, and up to date, so tools like this are backed by real data. Whether it’s cash flow planning, payroll, or full bookkeeping support, our team makes sure you always know where your business stands.

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Complete The Form To Get Your Free Playbook

Running a business can be hard on the best of days. The last thing we want to do as business owners is wonder if we are actually growing. Having another set of eyes on your business that is not your own can be truly transformative for your business. 

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