Cash flow net: how to work out your true position today

Net cash flow is the cash that came into your business minus the cash that left it over a set period. Your true position is different: take today's bank balance, add receivables due within 30 days, and subtract payables and short-term financing due in the same window.

A bank balance and a profit figure both mislead. One ignores what you owe. The other ignores when money actually moves. This guide gives you a net cash flow figure for a period and a true 30-day position for today.

What is net cash flow, and how does it differ from total cash flow?#

Net cash flow is the difference between all the cash that entered your business and all the cash that left it over a period. It is a single figure. Positive means you ended the period with more cash than you started. Negative means less.

Total cash flow, sometimes called gross cash flow, is each side on its own. Total cash in is every receipt. Total cash out is every payment. Net cash flow is what remains when you subtract one from the other. So the answer to "is cash flow net or gross" is both, depending on which line you are reading. Cash flow is the movement. Net cash flow is the result of that movement.

Net cash flow is not the same as your bank balance. Mixing the two up is the most common mistake in this area.

It matters because negative months are normal, not rare. Stripe reports that over 9 in 10 small businesses across Australia, New Zealand and the UK experienced at least one month of negative cash flow a year. The question is not whether it will happen to you. It is whether you saw it coming.

Step 1: Work out net cash flow with the net cash flow formula#

The net cash flow formula is simple: cash received minus cash paid out, over the same period [S1]. Pick the period first. A month works for most small businesses. Then add every receipt and every payment that landed in that window.

Net cash flow = total cash in − total cash out

Here is a cash flow net example. The numbers are made up to show the method, not taken from a real business. Work through it with your own figures in a spreadsheet beside it.

In one month, you receive money from customers and a VAT refund from the tax authority. Add those together and you have cash in for the month.

Then add up what you paid out: payroll, rent and software, suppliers, and a loan repayment. That total is cash out for the month.

Subtract cash out from cash in. If the answer is below zero, the business lost cash that month. If it is above zero, the business gained cash.

The closing balance in your bank is the opening balance plus net cash flow. If your closing balance does not match that sum, you have missed a receipt or a payment, and it is worth finding which before you go further.

Count cash on the day it moves, not the day you invoiced or the day the bill is dated. An invoice sent in March and paid in May is a May receipt. This is the discipline that makes your figures agree with your bank statement.

Step 2: Split it into operating, investing and financing cash flow#

A single net figure tells you that cash fell. It does not tell you why. To find out, split the period into three categories: operating, investing and financing [S2].

Operating cash flow is the cash from running the business. Receipts from customers. Payroll. Rent. Supplier payments. Tax. Investing cash flow is cash spent on or received from long-term assets, such as buying equipment or selling a vehicle. Financing cash flow is cash from lenders and owners: loans taken, loans repaid, share capital raised, dividends paid.

The net cash flow from operating activities formula, on the direct method, is cash received from customers minus cash paid for operating costs. Operating costs here means payroll, rent, software and supplier payments. A VAT refund is also an operating receipt, so it goes in the same line.

The loan repayment sits in financing, as a negative. If you bought a laptop that month, that would sit in investing, also negative. The picture then reads:

Operating: positive in this example
Investing: negative (the laptop)
Financing: negative (the loan repayment)
Net cash flow: the sum of the three lines above

The three lines add up to the net figure. This is the layout of a cash flow statement. Read it from the top: healthy operating cash flow with a negative total usually means you are investing or repaying debt faster than you earn. Negative operating cash flow is the one to worry about, because the business is losing cash just by trading.

Why is profit not the same as cash flow?#

Profit counts a sale when you earn it. Cash flow counts it when the money arrives. The gap between the two is where profitable businesses run out of money.

Say you send a large invoice in March on 60-day terms. Your profit and loss shows that revenue in March. Your bank shows nothing until May. Meanwhile payroll, rent and suppliers still leave in March and April. The business is profitable on paper and short of cash in practice. All figures here are illustrative.

This delay is position lag. It is the time between earning, invoicing and being paid. Any decision made from the profit figure alone is made on old news. You hire because March looked strong, and the cash that pays for the hire does not exist yet.

Thomas Cook is the extreme case. The travel company collapsed in 2019 because it lacked the cash flow to cover its obligations. Use it as a reminder of what a cash shortfall can end in, not as a model for your own business.

Profit tells you whether the business model works. Cash flow tells you whether you can pay for it this month.

Step 3: How do you work out your true cash position today?#

Your true cash position is a snapshot: your bank balance adjusted for what is about to arrive and what is about to leave. Net cash flow is the change over a period. The position is where you stand right now.

The bank balance alone can mislead badly. Djaboo describes a company with €60,000 in the bank whose true net position was negative, because it had drawn €90,000 in short-term financing. The balance looked healthy. The position was not.

Work it out in four moves, with a 30-day horizon [S3].

Start with the bank balance. Use today's cleared figure, not last month's statement.
Add receivables you expect within 30 days. Count only invoices with a realistic payment date. A customer who has paid late three times does not get counted as on time.
Subtract payables due in 30 days. That is supplier bills, VAT, payroll and tax, listed by due date.
Subtract short-term financing due in the window. Overdraft repayments, card balances you clear monthly, and loan instalments all belong here.

The result is your true position. If your bank says one thing and this sum says a much lower figure, run the business on the lower one. List each line by due date so you can see which week is tightest, not just the total.

Be honest about the receivables line. It is the one people are least honest about. If you are unsure whether an invoice will land inside 30 days, leave it out and add it back when the money arrives.

Step 4: Is your position in the danger zone?#

Compare your true position with two weeks of operating expenses. Anthem Strategists defines a danger zone as a projected cash balance below 2 weeks of operating expenses. Below that line, one late payment can stop payroll.

Say your weekly operating expenses run to a certain figure. Double it to get your threshold. If your true position sits below that threshold, you are in the danger zone, and the action is to move now, not next month.

Run this checklist each time you calculate the position:

Work out your weekly operating expenses from the last three months of payments.
Multiply by two to set your threshold.
Compare your true 30-day position with that threshold.
If you are below it, chase the oldest receivables first. Then list which payables you can move by agreement, and talk to your lender before you miss a payment, not after.
If you are above it, note by how much, and check again next week.

Keep the routine short. Anthem Strategists reports that a weekly cash flow review eventually takes under 15 minutes. Set a fixed day. Update the bank balance, receivables, payables and financing, and read the result against the threshold.

This check is only as good as the inputs. A position built on optimistic receivables will tell you that you are safe when you are not.

From net cash flow to a 3 way cash flow forecast#

Net cash flow looks backwards. A 3 way cash flow forecast looks forward, linking the P&L, the balance sheet and the cash flow so a change in one flows through to the others. Sell more on 60-day terms and the forecast shows revenue rising now and cash arriving two months later. That is the position lag from earlier, projected instead of discovered.

You can build one in a spreadsheet. The pillar guide to building a cash flow forecast walks through it, and the three way forecast page covers the software route.

bluprnts is a financial planning tool that builds a three-way forecast for small businesses from the inputs you enter. You enter products and pricing, headcount, sales, costs and financing lines, and it derives the P&L, balance sheet, cashflow and runway from them. No ledger or accounting software is required to get started. For the fuller reference on how the statement is built, see the Cash flow statement documentation.

Prices and plan limits verified as of November 2026.

FAQs#

What is net cash flow in simple terms?#

Net cash flow is the cash that came into your business minus the cash that left it over a set period, such as a month. If payments were larger than receipts, net cash flow is negative. Positive means you ended with more cash than you started. Negative means less. It is a flow across a period, not a snapshot of your bank balance on one day.

Is cash flow net or gross?#

It depends on the line you are reading. Gross, or total, cash flow is each side on its own: all cash in, and all cash out. Net cash flow is the result of subtracting one from the other. When someone asks for your cash flow figure, check which they mean. A net figure is one number. A gross view shows both sides.

What is the difference between cash flow and net cash flow?#

Cash flow is the movement of money in and out of the business. Net cash flow is the single figure left when you subtract total payments from total receipts over a period. Cash flow describes the activity. Net cash flow measures the outcome. Your true cash position is something else again: a snapshot of today that adjusts the bank balance for money due in and out within 30 days.

Is a higher or lower NWC better?#

The article does not define NWC, so use the plain test instead. What matters is whether your true 30-day position stays above two weeks of operating expenses. A position that sits below that line is a warning however it is labelled. Work out the position, set the threshold from your own weekly costs, and judge the result against that.

How often should I review my cash position?#

Weekly. Pick a fixed day and update the bank balance, receivables due, payables due and short-term financing. Anthem Strategists reports that a weekly cash flow review eventually takes under 15 minutes. Then compare the result with two weeks of operating expenses. Review it sooner if a large customer pays late or a big bill lands early.

Can a profitable business have negative net cash flow?#

Yes. Profit counts a sale when you earn it, while cash flow counts it when the money arrives. Send a large invoice on 60-day terms and your profit looks strong in the month you invoice, while payroll and rent still leave your bank. That delay is position lag. A business can show a profit and still run short of cash.

Conclusion#

Net cash flow tells you what happened to your cash over a period. Your true 30-day position tells you where you stand today. Run both, because a bank balance alone hides what you owe and profit alone hides when money moves.

Start with this week's true position: bank balance plus receivables due within 30 days, minus payables and short-term financing due in the same window. Compare it with two weeks of your own operating expenses, and act on the gap if it is negative.