11 ways to improve cash flow in a UK small business

First, know the difference between profit and cash

Profit is what is left after costs. Cash flow is the timing of money in and money out. Most businesses that fail are profitable right up to the day the account hits zero, because a big invoice was paid late, or stock was bought before it sold. Fixing cash flow is mostly about closing the gap between when you spend and when you get paid.

1. Invoice the day the work is done

Every day an invoice sits unsent is a day added to when you get paid. Send it the moment the job completes, not at month end. If you batch invoices monthly, you are quietly lending your customers up to 30 days of free credit.

2. Shorten your payment terms

Thirty days is a habit, not a law. Move new customers to 14 days, or payment on completion for one-off work. Terms are a negotiation, and most customers accept whatever you put on the invoice because they never think to challenge it.

3. Make it effortless to pay you

Put a card link on the invoice. Take payment on the spot with a terminal. The easier you make it, the faster the money lands. Friction is the enemy of cash flow, and a bank transfer someone has to set up manually is friction.

4. Follow up before the due date, not after

A short, friendly nudge two days before an invoice is due does more than three angry emails after it is overdue. It reframes you as organised rather than desperate, and it gets your invoice to the top of the pile when the customer runs their payment run.

5. Ask for deposits on larger jobs

If a job ties up your cash in materials or labour before you see a penny, take a deposit up front. Even 25 percent covers your outlay and tells you the customer is serious. Deposits are standard in most trades, customers only balk if you sound unsure asking.

6. Negotiate longer terms with suppliers

Cash flow works both ends. If your customers pay you in 14 days and your suppliers give you 30, you are holding cash in between. Ask key suppliers for 45 or 60 day terms, especially ones you order from every month. See our guide on dealing with suppliers when cash is tight.

7. Clear dead stock

Stock sitting on a shelf is cash you cannot use. Discount slow movers, bundle them, or return what you can. Freeing up even a few thousand pounds of tied-up stock puts working capital straight back into the business.

8. Review subscriptions and standing costs

Software you no longer use, an insurance renewal you never shopped around, a contract that auto-renewed. An hour going through your outgoings line by line often finds a few hundred pounds a month you can stop paying without noticing.

9. Build a 13-week cash flow forecast

A simple spreadsheet showing money in and out for the next thirteen weeks tells you where the pinch points are before they arrive. When you can see a tight week coming, you have options. When it surprises you, you have a problem.

10. Keep a buffer, not just a target

Aim to hold enough cash to cover a month of core costs. That buffer is what lets you say no to a bad order, wait out a late payer or take a growth opportunity, rather than being forced into whatever keeps the account above zero this week.

11. Use funding that flexes with your takings

Sometimes the gap is structural. You have the orders, the customers and the margin, but the cash lands after the bills. That is exactly what short-term funding is for. For businesses that take card payments, a merchant cash advance releases a lump sum against future card sales and repays as a share of each day's takings, so it flexes with your cash flow rather than fighting it.

It is not the answer to a business that loses money, that needs a different fix. But for a profitable business with a timing gap, it bridges cleanly. See how a merchant cash advance works, try the cost calculator, or check what you could raise in under a minute.