New Zealand is a seasonal country. Queenstown lives on ski and summer seasons. Hawke’s Bay, Bay of Plenty and Marlborough run to harvest calendars. Landscapers and builders slow down in wet winters. Retailers make a large share of their year between Black Friday and Boxing Day. None of that is a problem — as long as you plan for it.
Step 1: map your year from real data
Don’t forecast from memory. Pull the last 12–24 months of bank statements (or your accounting software’s cash summary) and lay them out month by month:
| Month | Cash in | Cash out | Net | Running balance |
|---|---|---|---|---|
| Example: Jan | $140,000 | $95,000 | +$45,000 | … |
| Example: Jun | $55,000 | $88,000 | −$33,000 | … |
Now you can see:
- your peak months — where surplus builds;
- your trough — how deep and how long;
- lumpy costs — insurance renewals, registration, annual licences, tax.
Step 2: add the tax calendar
Tax payments landing in the wrong month cause many seasonal crunches. For a 31 March balance date:
- Provisional tax (standard/estimation): 28 August, 15 January, 7 May.
- Six-monthly GST filers on standard: provisional tax on 28 October and 7 May.
- Terminal tax: 7 February (or 7 April with a tax agent’s extension).
- GST: the 28th of the month after each period ends (March periods 7 May, November periods 15 January).
If 28 August lands in your winter trough, you’ll feel it. Options that can help:
- The ratio option — ties provisional tax to your GST turnover, paid in six instalments. Available if your residual income tax is over $5,000 and up to $150,000 and you file GST monthly or two-monthly.
- AIM (accounting income method) — calculates provisional tax from actual year-to-date results through approved software, for businesses with turnover under $5 million. It can mean paying little or nothing in loss-making months.
- GST frequency — monthly or two-monthly returns mean smaller, more frequent payments, which some seasonal businesses find easier to manage than six-monthly.
Read provisional tax options explained and GST filing periods for detail, and plan weekly set-asides with the GST & provisional tax planner.
Step 3: build a buffer in the peak
The simplest seasonal strategy: during peak months, move a fixed share of every week’s surplus into a separate “trough” account. Work out the target from your map — the total negative net across your quiet months, plus a margin.
Rules that work:
- Separate account, not just a mental note.
- Automatic weekly transfer.
- Only touched when the trough arrives.
Step 4: flex costs where you can
- Staff: plan leave for the quiet season; use fixed-term or casual roles for peak cover.
- Stock: order for the season, not for the year; avoid carrying peak inventory into winter.
- Suppliers: negotiate seasonal terms — some will agree to extended terms in your quiet months.
- Subscriptions and leases: check for seasonal pause options.
- Maintenance: schedule it for the quiet months, when cash can be planned for it.
Step 5: decide how you’ll fund what’s left
Even with a buffer, many seasonal businesses need help to get through the trough — especially in a growth year, when the next peak needs more stock and staff. Options:
| Option | Suits |
|---|---|
| Business line of credit | Recurring troughs — draw in winter, repay in summer |
| Working capital loan | A one-off deeper-than-usual trough |
| Stock funding | Pre-season stock build-up |
| Property-secured loan | Larger needs; $20,000 up to $1m against NZ property |
Timing matters. Unsecured lenders assess recent bank statements. Apply toward the end of your peak — when deposits are strong — not in the middle of the trough.
Examples by industry
- Tourism (Queenstown, Rotorua, Bay of Islands): buffer from summer and ski seasons; line of credit for the shoulder months; pre-season staffing costs planned.
- Trades and construction: winter slowdown plus year-end holiday shutdown; watch January cash flow when December invoices pay late.
- Horticulture and viticulture: long pre-harvest cost period; payments from packhouses or wineries arrive later. See farm & agribusiness loans.
- Retail: heavy stock investment before Christmas, then a quiet February; clear aged stock early.
- Hospitality: weather-dependent peaks; school holidays and events.
A simple seasonal plan on one page
- Last year’s month-by-month net cash.
- This year’s adjustments (growth, price changes, new costs).
- Tax payment dates and amounts.
- Buffer target and weekly transfer.
- Funding facility — amount, and when to arrange it.
- Early-warning trigger — the balance at which you act.
Signs your seasonal plan needs updating
- The trough arrived earlier or lasted longer than last year.
- Your buffer ran out before the peak returned.
- You’re drawing on a facility in months you used to be positive.
- Tax payments are landing on top of the trough every year.
Any of these is a prompt to rebuild the month-by-month map with the latest data, rather than repeating last year’s plan.
Talk to us before the trough
Send a 60-second enquiry while your peak statements are strong. Unsecured facilities are for businesses usually trading six months or more, with weaker credit considered and decisions sometimes same day. It doesn’t affect your credit score.