A simple Guide To Stability
Cash flow is simply the timing of money moving in and out of your business.
- Cash coming in: customer payments, card sales, invoices paid, loans, grants
- Cash going out: stock/materials, wages, VAT, rent, software, fuel, tax, loan repayments
A business can look “busy” and even show a profit on paper, but still run into trouble if the cash arrives later than the bills are due. That’s why cash flow is often described as the lifeblood of a business.
Cashflow vs profit (the plain-English difference)
- Cashflow answers: “Do I have enough money in the bank to pay what’s due?”
- Profit answers: “After costs, did I make money overall?”
You can be profitable but short of cash if:
- Customers pay late
- You buy stock upfront
- You take on a big project with costs now and payment later
- You have seasonal sales (busy months and quiet months)
Why cashflow problems happen
Most cashflow issues come from one of these:
- Late payments (your biggest risk if you invoice)
- Costs rising faster than sales (especially materials, wages, ad spend)
- VAT and tax surprises (money collected but not set aside)
- Over-ordering stock (cash tied up on shelves)
- Growing too fast (more work often means more upfront costs)
How to maintain healthy cashflow (practical steps)
1) Know your “cash runway”
Work out how long your current cash will last if sales slow down.
- Add up your essential monthly outgoings (rent, software, fuel, minimum wages, insurance, loan payments)
- Compare that to the cash you have available
Even a rough number helps you make calmer decisions.
2) Keep a simple cashflow forecast
A cashflow forecast is not complicated. It’s a list of:
- expected money in by week/month
- expected money out by week/month
The key is timing. An invoice is not “money in” until it’s actually paid.
A basic forecast helps you spot problems early (for example: VAT due next month, but customer payments won’t land until the month after).
3) Get paid faster (without being awkward)
Small changes can speed up cash coming in:
- Invoice immediately (don’t wait until “Friday”)
- Put clear payment terms on every invoice (e.g., “Due in 7 days”)
- Send friendly reminders before and after the due date
- Offer easy payment options (bank transfer details, card link if possible)
- Consider deposits or staged payments for larger jobs
If you’re worried about chasing, remember: you’re not being rude—you’re running a business.
4) Control what goes out (especially the silent leaks)
Cashflow is often lost through small “leaks” that don’t feel big in the moment:
- subscriptions you no longer use
- tools that overlap
- marketing spend without tracking results
- supplier price increases that quietly add up
A quick monthly review of outgoings can free up cash without increasing sales.
5) Separate tax and VAT money
One of the most common causes of cashflow stress is spending money that really belongs to HMRC.
A simple habit:
- move a set percentage into a separate “tax/VAT” pot each time you get paid
Your bookkeeper can help you estimate a sensible percentage based on your situation.
6) Build a buffer (even a small one)
Aim for a buffer that covers at least:
- one month of essential costs (then build from there)
You don’t need perfection. Consistency wins.
7) Watch your stock and work-in-progress
If you sell products, stock is cash sitting on a shelf.
If you sell services, unpaid work-in-progress is cash sitting in your diary.
In both cases, the fix is similar:
- Price properly
- Invoice promptly
- Don’t let jobs drag on without a payment milestone
What profit is (in plain English)
Profit just means: how much money you’ve got left after paying certain costs. The “certain costs” part is why there are different types of profit.
A) Profit (general meaning)
In everyday terms, profit is:
Money in (sales) − money out (costs) = profit
But businesses split “costs” into layers so you can see where the money is going.
B) Gross profit (profit after the direct cost of what you sold)
Gross profit is what you have left after paying the direct costs of producing or buying what you sell.
Gross Profit = Sales − Direct costs (Cost of Sales)
Direct costs are costs that rise and fall with each job/product, for example:
- materials/stock you sell
- packaging
- delivery to get the product to the customer (sometimes)
- a subcontractor you pay specifically to do that job
- direct production costs
Plain English: “After I’ve paid for the stuff needed to deliver the product/service, what’s left?”
Example: You sell £2,000 of work this month. Materials and subcontractor cost you £600. Gross profit = £2,000 − £600 = £1,400
C) Net profit (the real ‘bottom line’ after all business costs)
Net profit is what’s left after you pay all the other business costs as well (not just the direct costs).
Net Profit = Gross Profit − Overheads − other costs (and sometimes tax, depending on the report)
Typical overheads include:
- Rent/home office portion
- Phone and internet
- Insurance
- Software subscriptions
- Marketing/ads
- Accounting fees
- Fuel/travel (business portion)
- Bank fees
- Equipment (sometimes spread over time)
- Training (if allowable)
Plain English: “After I’ve paid for everything it takes to run the business, what’s actually left?”
Example continuing: Gross profit was £1,400. Your monthly overheads are £900. Net profit = £1,400 − £900 = £500
A simple way to remember it
- Gross profit = profit on the work itself (before running costs)
- Net profit = profit for you after all running costs
Quick note for sole traders / self-employed
Net profit is not automatically ‘spendable cash’ because you may still need to set aside money for:
- Income Tax
- National Insurance
- VAT (if registered)
- paying yourself later / saving for quiet months
Takeaway points
- Cashflow is about timing: money can be “earned” but not yet in the bank.
- Profit is about what’s left after costs—and it comes in layers (gross and net).
- A simple cashflow forecast helps you spot problems before they become emergencies.
- Getting paid faster (clear terms, quick invoicing, polite chasing) is one of the easiest wins.
- Put tax/VAT money aside as you go, so it doesn’t become a nasty surprise.
- Build a buffer, reduce small spending leaks, and use deposits or staged payments for bigger jobs.
If you’d like, Zenith Book Keeping can help you set up a simple cashflow forecast and a monthly routine that keeps you in control—without drowning you in spreadsheets.
