Summer Cashflow Planning Starts Now
Summer can look busy from the outside and feel tight in the bank account.
For many small businesses, the warmer months are either really busy or really slow depending on your industry. At the same time, sometimes starting as early as late October, the country starts going into summer mode and things can slow down dramatically. December through February can be one of the hardest periods for cashflow. Customers slow their payments. Finance teams & other professional services shut down (including your accountant). Staff take leave. But, suppliers still expect to be paid. PAYE, GST, rent, wages, and provisional tax do not take a summer break.
The trap is waiting until January to deal with it. By then, the quiet period has already arrived, important people are away, and options can be limited.
October is the right time to act. There is still enough runway to invoice, collect, forecast, talk to your bank, adjust spending, and build a buffer before the Christmas shutdown begins.
This guide covers the practical steps that matter most, especially for New Zealand businesses heading into the summer trading season. It is general information only, not financial advice for your specific situation.
Why summer cashflow catches good businesses out
Summer cashflow problems are rarely caused by one bad decision. They usually come from timing.
Money goes out on schedule, but money comes in late.
A business might have plenty of work lined up, strong sales, and a full calendar. Yet the cash position still shrinks because payments land after the bills are due. This gap can grow quickly in December and January.
Common pressure points include:
Customers delaying payment until after the holidays
A break from billable time while everyone is on leave
Invoices not being sent before staff go on leave
Supplier bills falling due during the shutdown
Holiday pay being paid before the quietest trading weeks
PAYE, GST, and provisional tax dates landing close together
Owners taking drawings without checking the forecast
January sales being lower than expected
That mix can make a profitable business feel short of cash. Remember profit and cashflow are two different things.
It is especially common in hospitality, trades, construction, tourism, professional services, retail, health services, and seasonal operators. Some businesses get busier over summer, but still face delays in payment. Others slow down or close for a few weeks, while fixed costs keep running.
The aim of summer cashflow planning is not to predict every dollar perfectly. The aim is to see the pressure points early enough to make calm decisions.
Start with the invoices that are still in your head
The fastest way to improve summer cashflow is often simple: send the invoices.
Unsent invoices are invisible cash. They represent work already done, stock already supplied, or time already spent, but they do not help your bank balance until they are issued and paid.
By mid-December, payment behaviour changes. People go on leave. If you are supplying to larger businesses approvers & finance teams become harder to reach. Some businesses close completely. An invoice sent late in December can easily sit untouched until February.
That is why October and November matter.
Get invoices out before the holiday slowdown
Make a list of all work that has been completed but not invoiced. Then check work in progress that could be billed in stages before Christmas. Take note of when your customers are on leave, they will often have dates listed on their email signatures.
Look for:
Completed jobs waiting on final admin
Retainers or regular services not yet billed
Deposits that should have been requested
Progress claims that can be raised before shutdown
Disbursements, materials, or extras not yet added
Old draft invoices sitting in accounting software
If you usually invoice at month end, check whether you can invoice earlier for some work. If your terms allow it, do not wait until 31 December when half the country is at the beach.
The best invoice is the one sent while the customer still has people at their desks to approve it.
Chase overdue accounts before Christmas
Chasing debtors in January is slow and frustrating. Chasing them in November gives you a better chance of getting paid before the break.
Keep the process plain and firm. A good follow-up does not need to be awkward.
For example:
“Just checking in on invoice 1048, which was due last week. Could you please confirm it is scheduled for payment before your Christmas shutdown?”
That wording does three helpful things. It names the invoice, reminds them it is overdue, and asks for a specific payment timeframe.
If an account is larger or already late, call. Emails can sit unread. A short call can tell you whether the invoice is approved, disputed, missing information, or simply stuck in a queue.
Make payment easy
Before summer, check the basics:
Invoice details are correct
Purchase order numbers are included where required
Payment terms are clear
Bank account details are visible
Add additional payment options like credit card where possible (be careful of surcharges)
Any disputes are resolved quickly
Statements are sent to customers with multiple unpaid invoices
Small mistakes cause long delays in December. A missing purchase order number can push payment into the next processing cycle, and the next cycle may be after the holidays.
Map the cash gap before it arrives
A cash gap is the space between what you need to pay and what you expect to receive.
The gap might only last three or four weeks, but those weeks can still create real stress. The key is to map it before it arrives.
Do not rely on a rough feeling. A business owner’s instinct is useful, but summer cashflow needs numbers.
Build a simple forecast to mid-February
Start with your current bank balance. Then map expected money in and money out from now until mid-February.
Use weekly blocks if possible. Weekly forecasting shows the squeeze more clearly than a monthly summary, because one large payment can cause trouble even if the month looks fine overall.
Include every expected outgoing:
Wages
Holiday pay
PAYE
GST
Provisional tax
Rent or mortgage payments
Supplier bills
Insurance
Loan repayments
Subscriptions and software
Vehicle costs
Stock or materials
Owner drawings
Any planned shutdown costs
Then add expected income:
Confirmed customer payments
Regular recurring income
Deposits due
Progress payments
Seasonal sales
Any refunds, rebates, or other receipts
Be conservative. If a customer often pays late, do not forecast them as paying early just because the spreadsheet looks better. If January is usually quiet, do not build the forecast on a best-case month.
If you would like a run down on where to start with this flick us an email, we can provide a template and some basic guidance to get you started. Xero also has some great forecasting tools that you can use if you have the right subscription level.
Look for the lowest point
The most useful number in the forecast is not total income or total expenses. It is the lowest expected bank balance.
That low point tells you when the pressure will hit and how large the problem could be.
For many businesses, the lowest point falls in January or early February. That is when December wages, holiday pay, tax payments, supplier bills, and slow debtor receipts can all overlap.
Once you know the low point, you can act.
You might need to:
Speed up invoicing
Push harder on overdue accounts
Delay non-essential spending
Reduce stock purchases where practical
Change the timing of owner drawings
Arrange a temporary overdraft or short-term facility
Talk to suppliers about payment timing
Set aside tax money before the holiday period
A forecast does not remove the pressure by itself. It gives you time to respond before the pressure is urgent.
Talk to the bank or adviser while you still have options
If the forecast shows a gap, do not wait until the bank account is almost empty. Remember often decision makers at the bank are on leave over this time too.
Arranging support before Christmas is a very different conversation from asking for help after payments have bounced or tax is overdue. Banks and advisers can do more when they can see that you have planned ahead.
A short-term facility may be useful for some businesses. That could include a temporary overdraft, seasonal working capital support, or another option that fits the situation. The right answer depends on the business, the numbers, and the risks involved.
Before a conversation with your bank or adviser, prepare:
A cashflow forecast through to February
Current debtor and creditor lists
Notes on large upcoming payments
Expected summer trading patterns
Tax amounts due and dates
Any changes in staffing, stock, or trading hours
A clear estimate of how much support you need and for how long
The goal is not to borrow more than needed. It is to make sure the business can cover its commitments without panic.
Early conversations also give you more room to choose. You can compare options, check costs, understand conditions, and avoid rushed decisions.
Do not forget the 15 January tax date
For many New Zealand businesses, 15 January is one of the easiest dates to overlook and one of the hardest to absorb.
Provisional tax is due on 15 January for standard and ratio option filers with a March balance date. It is also the due date for GST periods that end on 30 November. That date lands right in the middle of summer, when many businesses have lower cash reserves or key people away.
It can feel badly timed because it is. January often sits after holiday pay, after Christmas spending, during slower admin periods, and before many customers have resumed normal payment runs.
Build the payment into your forecast now.
If provisional tax applies to your business, check:
How much is due
Whether the amount is based on the standard, estimation, or ratio method
Whether GST payments are also due around the same period
Whether funds have been set aside
Who will approve and process the payment if staff are away
Whether the payment date falls during your shutdown
Do not leave tax planning until the week it is due. If cash looks tight, speak with your accountant or tax adviser early. There may be options to discuss, but they are much easier to deal with before the due date.
A practical tip is to create a separate tax holding account. Move a portion of receipts into it during November and December, so tax money does not get mixed up with working cash.
That will not solve every problem, but it makes the true cash position clearer.
Holiday pay can drain reserves at exactly the wrong time
Holiday pay is one of the biggest summer cashflow shocks for businesses with staff.
It should not be a surprise, but it often feels like one because it hits before or during a quieter period. You pay staff leave, normal trading slows, and cash receipts may reduce at the same time.
That creates a double hit.
If your business closes over Christmas, calculate the holiday pay cost well before the final pay run. If your business stays open, factor in leave cover, public holiday costs, and any payroll changes over the summer roster.
Check:
Who is taking leave and when
Whether annual leave balances are up to date
How much the Christmas pay run will cost
Public holiday obligations
Whether casual or seasonal staff will increase wage costs
Whether revenue during the same period will cover payroll
Payroll errors over summer are stressful, so confirm the details early. If your payroll person is taking leave, make sure another person knows what needs to happen and when.
Holiday pay is not a problem when it is planned for. It becomes a problem when it is treated as a normal pay run and the bank balance says otherwise.
Set a cash buffer before you shut the doors
A cash buffer is not spare money. It is protection.
For many businesses, a useful target is four to six weeks of fixed costs before heading into shutdown or a slower trading period. Fixed costs are the bills that keep arriving even if sales fall.
These often include:
Rent
Wages or core payroll
Insurance
Loan repayments
Utilities
Software subscriptions
Vehicle finance
Minimum supplier commitments
Accounting and compliance costs
A buffer gives breathing room if January is quieter than expected, a customer pays late, or a supplier bill lands earlier than planned.
Start by calculating one week of fixed costs. Then multiply it by four, five, or six. Check if you have any lumpy payments due over that time, such as annual subscriptions, insurances, rental OPEX. This will give you a target, not a guess.
If the target feels out of reach this year, do not ignore it. Build the largest realistic buffer you can and make a plan to improve before next summer.
Small changes can help:
Hold back on non-essential purchases until February
Reduce stock lines that move slowly, if possible discount these to free up some cash
Ask for deposits on larger jobs
Tighten payment terms for new work
Follow up debtors twice a week until Christmas
Delay owner drawings if the forecast is tight
Keep tax money separate from trading funds
The buffer does not need to be perfect to be useful. Even two extra weeks of fixed costs can change how January feels.
Make October the decision month
January is too late for most of the best cashflow decisions.
By January, invoices may already be delayed, customers may be away, staff may be on leave, and banks may need more time than you have. October gives you the advantage of movement. You can still change timing, collect money, prepare documents, and make decisions before the summer slowdown starts.
A strong October plan does not need to be complicated. It needs to be honest.
Use this checklist:
Send all invoices for completed work
Review work in progress that can be billed before Christmas
Follow up overdue accounts weekly
Build a cashflow forecast through to mid-February
Include PAYE, GST, provisional tax, rent, suppliers, wages, and holiday pay
Identify the lowest expected bank balance
Set a cash buffer target
Speak with your bank or adviser if there is a gap
Confirm who will handle payments during shutdown
Review the forecast again in late November
The businesses that get through summer with less stress are not always the ones with the highest sales. They are often the ones that planned the timing better.
Summer Cashflow Planning Starts Now because the pressure builds before the holidays arrive. If you map the gap, collect what is owed, plan for tax, and protect your buffer, January becomes far less uncertain.
Before the silly season kicks in, take one hour to look ahead. The numbers may show a gap, but that is useful news in October. It gives you time to do something about it.
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