A profitable business can still run out of money. Cash flow is simply the timing of what comes in and what goes out, and for a solo business that timing is often uneven — a big invoice paid late, a subscription renewed early, a slow month after a busy one.
Understanding cash flow means separating the question 'am I profitable' from the question 'can I pay this month's bills'. Both matter, but only one of them decides whether you can operate next week.
Why profit is not the whole picture
Profit is calculated over a period and includes income you have earned but not yet been paid for. Cash is what is actually sitting in your account. A business that has invoiced £8,000 this month but collected only £3,000 is profitable on paper and tight in practice.
For example, if your costs are £2,000 a month and you have £3,000 in the bank with £5,000 outstanding on unpaid invoices, you are solvent on paper but only four to five weeks from a problem if those invoices are delayed.
The habits that keep cash flow visible
- Check your bank balance and outstanding invoices weekly, not monthly
- List fixed costs separately from variable ones
- Note the date each recurring cost leaves your account
- Track the gap between invoicing and being paid
- Keep a rolling view of the next four to six weeks, not just this month
Where to go deeper
A 13-week cash-flow forecast turns this from a vague sense of worry into a specific weekly picture, and it is worth building even if your income is fairly predictable, because it shows problems while there is still time to act on them.
Take these three things away
- Track cash weekly, not just profit monthly
- Separate fixed costs from variable ones
- Watch the gap between invoicing and getting paid
Written for the Hayley Duster editorial project as general information for people running businesses alone. It is not medical, legal, financial or tax advice, and it is not a substitute for guidance from a qualified professional who knows your circumstances.
All articles