How to improve cash flow quickly

Need to improve cash flow quickly? Start with the cause.

When cash flow feels tight, it's tempting to focus only on your bank balance. That tells you how much money you have today, but not what's about to happen next.

Most cash flow problems come from one or more of three things:

1. Money coming in too slowly

2. Money going out too quickly

3. The business not being able to see what happens next

You might be waiting for customers to pay, carrying too much stock, covering costs before a project is complete or dealing with bills that have landed at the same time.

You may also have a profitable business that's still short of cash because the timing doesn't work. Profit and cash flow are related, but they're not the same thing.

Quick action can help, but panic decisions can make the position worse. This guide focuses on practical steps you can take promptly.

Some will help within a day or two. Others will help you build a better position over the next week, month and quarter.

Quick answer: The fastest ways to improve cash flow

If cash flow is under pressure, start with the actions that give you the clearest and quickest impact.

The fastest ways to improve cash flow are to:

• check your bank balance, upcoming bills and expected payments

• chase overdue invoices

• send any unsent invoices immediately

• ask customers to pay by card, payment link or direct debit

• request deposits or staged payments for current work

• pause any spending that isn't essential

• negotiate payment dates with suppliers before bills become overdue

• review stock, subscriptions and any services you aren't using

• consider finance only if the repayments are affordable

• speak to your accountant if the pressure is serious or recurring

You can't do everything at once, so start by finding the source of the pressure, then act on the areas that will make the biggest difference right away.

1. Build a quick cash flow snapshot

Before you decide what to do, build a quick picture of your cash position.

By doing this, you're trying to understand what money is available, what's due in and what must go out over the next few weeks.

Start by writing down:

• your current bank balance

• money you expect in during the next seven days

• money you expect in during the next 30 days

• overdue invoices

• bills, payroll, rent, tax and supplier payments due in the next 30 days

• loan, credit card or overdraft repayments

• customer payments that you're unsure about

• large costs that you could delay, lower or renegotiate

Also look at your key cash flow metrics, including debtor days, overdue invoices and outgoing expenses.

Debtor days show how long it usually takes customers to pay you. If that number is creeping up, your business may be waiting longer for cash even if sales look healthy.

Use this simple calculation:

Opening bank balance + expected cash in - expected cash out = likely cash position

If the gap is small and temporary, the answer may be practical – chase overdue invoices, send unsent invoices or delay a non-essential cost.

If the gap is large or keeps happening, you need a fuller cash flow forecast. A forecast helps you see shortfalls before they become urgent and gives you time to make better decisions.

For a step-by-step approach, read our guide to cash flow forecasting.

2. Send every invoice you can send today

Cash flow problems aren't always caused by customers paying late. Sometimes, the delay starts earlier because you haven't sent the invoice.

If you've finished work and you're entitled to bill for it, send the invoice today. Waiting until the end of the week or month adds extra delay before the customer's own payment process even begins.

• If you run a service business, invoice as soon as the work is complete or at the agreed milestone.

• For project work, agree staged billing before the project begins.

• For retainers, invoice on the same date every month so the process becomes routine.

• If you're a product business, check when payment is taken – before dispatch, on dispatch or after delivery.

Before sending an invoice

Check that it includes:

• the correct customer name

• a purchase order number (if needed)

• a clear description of the work or product

• the invoice date and due date

• your payment terms

• bank details or a payment link

• contact details for queries

• VAT details (if this applies)

A small mistake can delay payment by days or weeks.

If the invoice is missing a purchase order, sent to the wrong person or unclear about what's been delivered, it may sit in someone's inbox while your cash position gets worse.

3. Make your invoices easier to pay

Customers are more likely to pay quickly when it's easy to do so.

If someone has to search for your bank details, ask for the invoice again or work out when payment is due, you've created friction. That friction may not feel like much, but it can slow everything down.

Make sure every invoice clearly shows the amount due, the deadline for payment and the payment method you want them to use. Depending on your business, you could offer:

• payment links (links to secure web addresses that customers click to pay online instantly)

• card payments

• direct debit for recurring payments

• standing orders for regular retainers

• clear bank transfer details

• automated reminders from accounting software

• QR codes on invoices (where appropriate)

For recurring work, direct debit can be useful because it means the customer doesn't have to remember to pay each time.

For one-off work, a payment link can make it easier for the customer to act as soon as they receive the invoice.

Before you send, ask yourself: could someone pay this in less than two minutes without emailing me for extra information? If the answer is no, fix the invoice before sending it.

4. Check whether your invoices are being blocked

Some invoices aren't paid late because the customer refuses to pay, but because the invoice is missing some crucial information.

This is especially common when small businesses sell to larger companies. There may be a finance department, purchase order process, supplier portal or payment run that you need to understand before you start work.

Business mentor Jon Davies from SecondBrain Consulting says one of the easiest ways to improve cash flow, particularly when working with large companies, is to have a structured onboarding process for new clients.

He recommends using a simple form to collect the details you need to get paid, including:

• whether the client needs a purchase order

• how often they make payment runs

• where you should send invoices

• who handles payment-related enquiries

As Jon explains:

"Having this information means your invoices are more likely to be right first time, sent to the correct person and not held up because key details are missing."

Before starting work with a new client

Ask them the following:

• Do you need a purchase order?

• Who approves the invoice?

• Who receives the invoice?

• What email address should invoices go to?

• When are payment runs?

• What details must the invoice contain?

• Are there supplier forms we need to complete?

• Do you need us to use a supplier portal?

This is a way to protect your cash flow before the payment is even due.

5. Chase overdue invoices in a structured way

Late payment can leave a serious gap in your cash flow, particularly if one customer represents a large part of your income.

A structured credit control process helps you chase payment without coming across as desperate or inconsistent. It also makes it easier to spot which customers need a firmer approach.

Timescales to follow

• Start before the invoice becomes overdue. Send a polite reminder around seven days before the due date, with the invoice attached.

• On the due date, send a short reminder confirming that payment is due. If the invoice is three to five days overdue, call or email to ask whether anything is preventing the customer from paying.

• If the invoice is seven to 14 days overdue, escalate to the finance contact, decision-maker or person who approved the work.

• If it's more than 30 days overdue, you may need to consider pausing further work, charging interest, agreeing a payment plan or taking formal advice.

For customers on longer payment terms, monthly statements can also help. They give the customer a clear view of what's outstanding and lessen the chances of them missing any invoices.

You can also use accounting or credit control tools to automate reminders. Automation won't replace a well-timed conversation, but it can make sure customers don't forget the invoices you've sent.

For business-to-business transactions, GOV.UK guidance says statutory interest on late commercial payments is 8% plus the Bank of England base rate, unless a different contractual rate applies.

Businesses may also be able to claim fixed debt recovery costs of £40, £70 or £100, depending on the size of the debt.

The Small Business Commissioner has an interest calculator that can help you work out interest and compensation on overdue invoices.

For more detail, read our late payment guide.

6. Spot payment problems before they become overdue

Late payment often starts before the due date. The warning signs may be there while the project is still live.

Small business adviser David Ashdown says payment problems rarely begin with the invoice itself.

In practice, he says, the warning signs are usually visible earlier – unclear expectations, a client becoming less responsive, a relationship beginning to drift or an awkward commercial conversation being avoided.

By the time an invoice is overdue, the issue may have been building for some time. David's advice is to recognise those early signs and act while the relationship can still be repaired.

Warning signs to look out for

Here are some signals that late payment might become a problem for you:

• A customer delaying sign-off

• The finance contact no longer replying

• The customer questioning what the contract covers, after you've delivered the work

• A purchase order still missing

• The customer asking to change payment terms after work has started

• Previous invoices being paid late

• The customer asking for more work while leaving old invoices unpaid

Don't wait until the invoice is 30 days overdue to deal with the issue. Ask clear questions early, keep written records and confirm payment dates in writing.

A simple message can be enough:

"I'm checking the invoice is on track for payment. Is there anything you need from me to make sure it can be processed by the due date?"

That kind of prompt is polite, but it also makes it harder for the payment to drift unnoticed.

7. Ask for deposits, staged payments or shorter terms

If your business has to spend money before customers pay you, deposits and staged payments can relieve some of the pressure.

This is especially useful for project work, consultancy, design, events, manufacturing, catering and other work where you commit time, staff or materials before the job is complete.

Enterprise Nation adviser Ben May explains that, as a consultant, he breaks work into clear stages with deliverables.

He bills half of each stage upfront and doesn't present deliverables until the customer has made the upfront payment.

He also avoids starting the next stage until the balance has been paid on the previous one.

That approach gives his clients a reason to keep payments moving and lowers the amount left unpaid at the end of the project.

Which approach should you take?

This will depend on the type of business you run:

• Service businesses can ask for a deposit before starting work.

• Project-based businesses can split payments by milestone.

• Retainer businesses can invoice in advance.

• Product businesses can take payment before dispatch where possible.

• Workshops, events and training providers can ask for payment at the booking stage.

• Larger contracts can include agreed payment stages before major work begins.

Shorter payment terms can also help, but they need to be clear from the start. If a customer expects 30 or 60 days, don't wait until after the work is complete to challenge it.

Set the terms before you commit time, materials or staff.

8. Pause, reduce or renegotiate spending

While the key to improving cash flow is getting paid faster, it's also about slowing or smoothing the money going out.

Start with costs that won't damage the business immediately – for example:

• software subscriptions you don't use

• tools you can live without

• equipment purchases that can wait

• travel you can replace with phone or online calls

• stock orders you can reduce

• marketing spend that isn't generating any leads

• professional fees you can reschedule

• office or storage costs you can review

Be careful not to cut spending just because it's there.

A subscription may feel annoying, but if it saves hours of paid time each week, cancelling it may not help. A marketing campaign may look expensive, but if it's producing profitable leads, cutting it could make next month's cash position worse.

It's also important that you talk to suppliers. If you know you may struggle to pay them on time, speak to them early. Don't simply miss the payment and hope they will wait.

Ask whether you can split the payment, move the date or agree a temporary plan. Many suppliers would rather have a clear conversation than not hear anything.

Protect your most important suppliers wherever you can. A short-term cash improvement isn't worth losing a supplier you need to deliver customer work.

9. Review stock and work in progress

Cash can get tied up in stock, materials, unfinished work or slow-moving products.

Stock issues

For retailers, food businesses, wholesalers and makers, stock is often one of the biggest cash flow pressures.

You may have spent money on products or materials, but the cash doesn't return to you until those items sell.

With this in mind, look at:

• slow-moving stock

• products you've over-ordered

• minimum order quantities

• suppliers' terms

• bestsellers that are out of stock while cash is tied up elsewhere

• old stock you could discount to release cash

On this last point: discounting can help, but you must handle it carefully.

If you discount too heavily or too often, you may train customers to wait for lower prices. Use it to clear specific stock, not as a permanent fix for poor planning.

Work in progress issues

For service businesses, the equivalent issue is work in progress. You may have done a lot of work, but not yet reached the point where you can invoice.

To improve this, invoice when you hit a milestone, avoid doing extra unpaid work, agree requested changes in writing and bill promptly when you complete a stage of work.

If projects keep drifting beyond what was agreed, you may be funding more work than the customer has actually agreed to pay for. That can quickly turn a good-looking project into a cash flow problem.

10. Review pricing, margins and unprofitable work

Some cash flow problems are caused by undercharging.

If every job needs upfront costs, a long delivery period and slow payment, your business can grow sales and still run short of cash. More work doesn't always mean more cash in the bank.

Review whether your prices properly cover:

• materials

• labour

• delivery

• time spent managing the work

• payment fees

• returns, refunds or rework

• tax and overheads

• a profit margin

Then look at your work by customer, product or service, and ask:

• Which products or services bring in cash quickly?

• Which customers take the longest to pay?

• Which jobs require the most upfront spending?

• Which work looks profitable but puts you under pressure before payment arrives?

• Which customers regularly ask for extra work without agreeing an additional budget?

Don't take this as meaning you must raise every price immediately. You just need to understand which work helps cash flow and which work weakens it.

If a customer pays late, negotiates hard on price and wants a lot of work upfront, the sale may not be as valuable as it looks.

11. Credit-check new customers before offering payment terms

You shouldn't offer every customer credit.

Some customers pay late because they're disorganised. Some use suppliers as a form of free credit. Others may be facing financial problems and be more likely not to pay.

Good credit control can help with your disorganised customers. The other two situations need more caution.

Running a credit check can help you decide whether to offer credit, reduce the credit limit, request a deposit or ask for staged payments.

Consider running a credit check when:

• a new customer wants credit

• the contract is large

• the customer asks for long payment terms

• you're taking on upfront costs

• the customer has delayed payment before

• one customer would represent a large share of your income

If you're not unsure, you can ask for a deposit, lower the credit limit or offer staged payments.

You can also shorten the payment term, pause new work until the customer has settled old invoices, or walk away if the risk is too high.

It's better to turn down risky work than take on a customer who could put your business under serious pressure.

This can be difficult when you want the sale. But a large unpaid invoice can do more damage than no sale at all.

12. Consider finance, but only for the right kind of cash flow problem

Finance can help with cash flow, but it isn't a simple fix.

If you use it properly, it can help you manage those timing gaps. But used badly, it can add repayments to a business that's already under pressure.

Common options include:

• overdrafts

• business credit cards

• short-term business loans

• invoice finance

• asset finance

• merchant cash advances

Each works differently, with its own costs, risks and repayment structures.

Example:

A digital marketing agency wins a new contract and needs £20,000 to start the project. It doesn't have that cash in the bank, but it's owed £30,000 from a previous job due to be paid in 30 days.

Invoice finance could help it unlock cash from the unpaid invoice and use that money to fund the next project.

That kind of finance may make sense because the cash gap is linked to timing. The business has money due in and a clear route to repaying what it borrows.

Before you take on any finance, check the total cost, repayment dates, fees and how it'll affect future cash flow.

If the repayments will create a new shortfall next month, get financial advice first.

When finance may help your business

• The cash gap is temporary.

• You're waiting for confirmed customer payments.

• You have a predictable route to paying back what you borrow.

• You need to fund stock, materials or delivery before being paid.

• You have a strong pipeline of sales but poor payment timing.

When finance may not help your business

• Sales are falling.

• Margins are too low.

• You're already failing to make repayments.

• The business has no clear plan for paying the money back.

• Your cash flow problem is recurring every month.

For more detail, read our [short-term finance guide - coming soon] and invoice finance guide.

13. Speak to your accountant or adviser before the pressure gets worse

If your cash flow pressure is serious or keeps returning, speak to your accountant or a financial adviser as soon as you can.

An accountant can help you understand what's causing the problem, whether you can afford finance, what costs you can bring down and what tax or payment obligations you need to plan for.

You should speak to an accountant or financial adviser if:

• you can't cover payroll, rent, tax or essential suppliers

• you're regularly using personal money to cover business costs

• you're relying on credit cards to stay afloat

• you can't see how you're going to pay next month's bills

• you're not sure whether to borrow, cut costs or change terms

• you're worried about becoming insolvent

The earlier you ask for help, the more choices you're likely to have.

You can also find an accountant, financial expert or business adviser here on Enterprise Nation.

Note: This guide is general information, not financial advice. If your business is under serious pressure, get advice from an accountant, a financial adviser or an insolvency professional.

Seven-day cash flow action plan

If you need to act quickly, use this simple seven-day plan.

1. Day one: Build your cash flow snapshot. Write down your bank balance, money due in, overdue invoices and bills due over the next 30 days.

2. Day two: Send all unsent invoices. Check completed work, project milestones, retainers, deposits and product orders. Send anything you're entitled to bill.

3. Day three: Chase overdue invoices and confirm payment dates. Contact customers with overdue invoices. Ask whether anything is blocking payment and confirm when they'll make the payment.

4. Day four: Check "invoice blockers". Look for missing purchase orders, wrong contact information, supplier forms, issues with online supplier portals or invoice details that aren't clear.

5. Day five: Review spending and pause non-essential costs. Cancel unused subscriptions, delay non-essential purchases and review spending that isn't producing a clear return.

6. Day six: Speak to suppliers. If you may struggle to pay a bill, speak to the supplier before the due date. Ask whether you can split the payment, move the date or agree a temporary plan.

7. Day seven: Update your forecast and decide what support you need. Review your position again. If the gap is still serious, speak to your accountant, financial adviser or a debt recovery support service before the pressure gets worse.

What not to do when cash flow is tight

When cash flow is under pressure, what you avoid can be as important as what you do.

• Don't ignore overdue invoices. The longer you leave them, the harder they can become to recover.

• Don't keep working for customers who haven't paid, without agreeing a clear plan. You may be exposing yourself to more risk.

• Don't take expensive finance without understanding the repayments. Borrowing can help with timing, but it can also make cash flow worse.

• Don't stop paying key suppliers without speaking to them. Silence can damage relationships you need to keep trading.

• Don't cut spending that brings in profitable sales directly, unless the numbers justify it.

• Don't rely only on your bank balance. Use a short-term forecast so you can see what's coming next.

• Don't assume the problem will fix itself. A small cash flow issue can often be managed with prompt action. A larger issue needs proper advice.

Cash flow FAQs

How can I improve cash flow immediately?

Start by building a quick cash flow snapshot, then send any unsent invoices and chase overdue payments.

Review payments due over the next 30 days and pause non-essential spending where you can do so safely.

If the gap is serious, speak to your accountant or financial adviser.

What causes poor cash flow in a small business?

Poor cash flow is usually caused by money coming in too slowly, money going out too quickly or a lack of visibility over future payments and costs.

Common causes include late payment, weak invoicing processes, high upfront costs, too much stock, underpricing, poor margins and unexpected bills.

Can a profitable business still have cash flow problems?

Yes. A business can be profitable on paper but still short of cash if customers pay late, stock has to be bought upfront or projects take a long time to complete before payment is received.

That's why cash flow forecasting is so useful.

How do I get customers to pay faster?

Set clear payment terms before work starts, invoice promptly, make payment easy and send reminders before the due date.

For project work, use deposits or staged payments. For regular work, consider direct debit or standing orders.

Should I offer discounts for early payment?

Small early-payment discounts can help bring cash in sooner, but only if the discount still leaves enough margin.

Check the numbers before offering a discount and avoid using it with customers who would have paid on time anyway.

When should I use invoice finance?

Invoice finance may help if you're waiting for confirmed customer payments and need cash sooner.

It's usually best suited to timing gaps, rather than deeper problems such as falling sales, poor margins or unaffordable repayments.

How often should I update my cash flow forecast?

If cash flow is tight, update your forecast at least once a week. If your position is stable, a monthly review may be enough.

Review it more often when you have large payments due, seasonal peaks, major projects or uncertain customer payments.

What should I do if I can't pay a supplier on time?

Speak to the supplier before the payment is due. Explain the situation clearly and ask whether you can split the payment, move the date or agree a temporary plan. Don't miss the payment without making contact.

Can I charge interest on late payments?

For business-to-business transactions, GOV.UK guidance says you can usually charge statutory interest on late commercial payments at 8% plus the Bank of England base rate, unless the work contract has set a different rate. You may also be able to claim fixed debt recovery costs.

When should I speak to an accountant about cash flow?

Speak to an accountant if you can't cover essential costs, are relying on personal money or credit cards, are unsure whether to borrow or can't see how you'll pay next month's bills.

Get help early, before the problem becomes harder to manage. 

People also read

• Cash flow for small businesses: A complete guide for UK SMEs

• How to get paid on time and deal with late payments

• Late payments crackdown: The biggest reforms in a generation