Skip to content
eEveryday
Today—

Small-business cash flow — target available business cash

Estimate monthly runway from current cash, recurring expenses, receipts and seasonal changes. Numerically solve for available business cash from a desired projected cash after horizon, within your chosen search range.

Five planning modes, one calculator topic

These modes share an underlying model, not five unrelated formulas. This advanced mode is excluded from search indexing. Visit the main small-business cash flow calculator for the topic overview.

Planning mode: Numerically solve for available business cash from a desired projected cash after horizon, within your chosen search range. Adjust the inputs to fit your situation. Related tools share an underlying model, with distinct calculation, reverse-solve, comparison and sensitivity functions.

Your numbers

$

Find available business cash while holding your other settings constant.

$
$
$
$
$
%
months

Required available business cash

$45,000

Closest modeled result: $165,000.

Target headline value
165,000
Calculated headline value
$165,000
Absolute target difference
0
Starting cash
$45,000
Monthly collected revenue
$28,000
Monthly expenses
$24,000
Projection horizon
12 months
Lowest balance
$45,000

Assumptions to check

  • Not accounting or cash-flow advice; timing and seasonality matter.
  • Requires a monotonic headline response within the chosen range. Rounded outputs, thresholds and discontinuities limit precision.

How this is calculated

Bounded bisection search for available business cash, holding other inputs constant. Project receipts and recurring operating expenses by month.
  1. 1Evaluate the chosen range and numerically narrow the solution.
  2. 2Return the closest input at the allowed precision; a whole-unit solution may not exactly reach the target.

Assumptions and limits

  • Taxes, inventory, debt, timing and seasonal receipts need separate estimates; not accounting advice.
  • Not accounting or cash-flow advice; timing and seasonality matter.
  • Requires a monotonic headline response within the chosen range. Rounded outputs, thresholds and discontinuities limit precision.

Practical guide

Understanding small-business cash flow — target available business cash

Everyday editorial team · GEOINNOVATION CO., LTD · Published · Updated

What this calculation is for

A business cash forecast tracks collected money rather than accounting profit. Receivables that have not been collected cannot pay this month’s bills simply because they were recognized as revenue.

How the method works

Opening cash changes each month by the entered receipts and recurring expenses. The named growth assumption changes the modeled receipts stream, and the lowest balance highlights a potential cash squeeze. The displayed model uses: Forecast cash balance by month from opening cash, collected receipts and recurring expenses.

A worked example

For an illustrative small-business cash flow scenario, use Available business cash: 45000 $; Monthly collected revenue: 28000 $; Monthly operating expenses: 24000 $; Expected monthly receivables: 6000 $; Expected monthly change in receipts: 0 %; Projection horizon: 12 months. The modeled projected cash after horizon is $165,000. These are example assumptions, not current prices, official benefit amounts or personalized advice.

Assumptions and real-world differences

Revenue and additional receivables should not contain the same payment twice. Inventory timing, tax, debt service, seasonality and delayed collections require explicit allowances outside a simplified constant-expense scenario. Taxes, inventory, debt, timing and seasonal receipts need separate estimates; not accounting advice.

Solving for available business cash

This reverse calculation searches for a available business cash that makes the model’s headline measure approach your target. Set a lower and upper search bound, leave the other assumptions consistent, and inspect the achieved result and target difference. The returned number is an input, not the original model’s output. A bounded solution can be approximate when the allowed input step rounds values.

Reproduce this tool’s example

These fixed example inputs are independent of edits you make above. Enter them in this tool to reproduce the result, then replace them with your own assumptions.

Target: projected cash after horizon
165,000 $
Minimum available business cash
22,500 $
Maximum available business cash
67,500 $
Monthly collected revenue
28,000 $
Monthly operating expenses
24,000 $
Expected monthly receivables
6,000 $
Expected monthly change in receipts
0 %
Projection horizon
12 months

Required available business cash: $45,000

Closest modeled result: $165,000.

  • Target headline value: 165,000
  • Calculated headline value: $165,000
  • Absolute target difference: 0

Frequently asked questions

Can a profitable business still run out of cash?
Yes. Collection delays, inventory and debt payments can create a cash shortage even when reported profit is positive.
Which inputs should I check before using this small-business cash flow estimate?
Check available business cash, monthly collected revenue, monthly operating expenses, expected monthly receivables, expected monthly change in receipts, projection horizon. Match each field’s unit and time period, then compare the detailed rows rather than treating the headline alone as the complete answer.
Why might there be no exact required available business cash?
The target may be outside the search range. Rounded outputs, whole-item counts, tax thresholds and flat responses can also prevent an exact solution. Bisection requires a monotonic response within the chosen range; do not interpret a failed search as a real-world impossibility.

More in Small business

View all 25 in Small business →