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The short answer
Plan a seasonal business on a 12-month cash calendar: mark your peak and slow months, list the costs that do not stop in slow months, such as rent, salaries and the PAYE and pension remittances that follow them, and move a fixed share of peak-month cash into a reserve until it covers the deepest slow-month shortfall. Size the reserve from your own figures for last year, not from a rule of thumb.
Know your seasons
Many Nigerian businesses have a rhythm that repeats each year. Commonly reported patterns include a December festive peak for retail, food, events and travel; smaller peaks around Easter and the two Sallah holidays, whose dates move each year with the lunar calendar; school-related spending at the start of each term; and slower trade for some sectors in the rainy months or just after the festive season, when households are stretched. Your own sales history is the only reliable guide to which of these affect you and by how much.
Costs can be seasonal too. NBS data showed food prices rising 1.02% month on month in August 2026 and falling 1.55% in September. If you buy food inputs, your cost line moves as well as your sales line.
Build the cash calendar
Example only: a party supplies and decor business in Port Harcourt. Figures are in ₦ thousands. Cash out includes stock bought ahead of peaks, which is why November spending is high.
| Month | Cash in | Cash out | Net | Running total from zero |
|---|---|---|---|---|
| Jan | 1,200 | 1,100 | +100 | +100 |
| Feb | 800 | 1,000 | −200 | −100 |
| Mar | 900 | 1,000 | −100 | −200 |
| Apr | 1,600 | 1,300 | +300 | +100 |
| May | 800 | 1,000 | −200 | −100 |
| Jun | 700 | 1,000 | −300 | −400 |
| Jul | 700 | 1,000 | −300 | −700 |
| Aug | 900 | 1,000 | −100 | −800 |
| Sep | 1,100 | 1,100 | 0 | −800 |
| Oct | 1,000 | 1,100 | −100 | −900 |
| Nov | 1,800 | 1,600 | +200 | −700 |
| Dec | 3,200 | 1,900 | +1,300 | +600 |
Over the year the business makes ₦600,000 of net cash. But starting January with nothing in reserve, it would be ₦900,000 short by October. The year is profitable and still runs out of money unless the cash from last December is kept back.
Size the reserve
- Find the lowest point of the running total. Here it is −₦900,000 in October.
- Add a margin for a worse year, for example 20% (illustrative): ₦900,000 × 1.2 = ₦1,080,000.
- Set that as the reserve to hold on 1 January.
- Fund it from the peak: in this example, December's +₦1,300,000 covers it, leaving ₦220,000 free.
- If one peak is not enough, sweep a fixed share of every good month, such as Easter, until the target is reached.
Keep the reserve in a separate account so it is not mistaken for spare cash, and write down the rule for using it: only to cover planned slow-month shortfalls, never for new equipment or the owner's spending.
Costs that do not pause
| Obligation | Timing | Source |
|---|---|---|
| PAYE deducted from salaries | Paid to the state tax authority by the 10th of the following month | PwC tax summary, reviewed May 2026 |
| Pension contributions (where the Pension Reform Act applies) | Remitted within seven working days of paying salary | Pension Reform Act 2014, as summarised by ThisDay |
| Company income tax return | Due six months after the accounting year end | PwC tax summary, reviewed May 2026 |
| Rent, loan repayments, subscriptions | As agreed | Your contracts |
Slow months are when businesses are tempted to delay remittances. PwC's summary notes late payment of tax attracts 10% plus interest, so a delayed remittance becomes a more expensive debt. Put these dates in the calendar alongside sales.
Other ways to smooth the year
- Take deposits on peak orders. A 50% deposit on December event bookings, paid in October or November, funds the stock you buy for them.
- Add an off-season line. A decor business might rent equipment for church and corporate events in quiet months.
- Agree seasonal supplier terms. Longer payment terms on pre-season stock, repaid from peak sales.
- Match staffing to the season. Use fixed-term or casual staff for peaks, with written terms and notice that follow the Labour Act.
- Avoid expensive short-term credit for slow months. If you must borrow, compare the total cost; see APR vs flat fee.
Mistakes seasonal businesses make
- Treating December's bank balance as profit and spending it on the owner or new equipment in January.
- Hiring permanent staff on the strength of one strong season.
- Buying the whole peak stock with cash and leaving nothing for rent and salaries in the following quarter.
- Planning from the yearly average. An average month never happens in a seasonal business; the calendar has to show each month separately.
- Forgetting that customers who pay on credit in the peak may settle in the slow months, or not at all. Count cash when it is likely to arrive, not when the sale is made.
- Leaving the reserve in the main account, where it is spent without anyone deciding to spend it.
Keep it current
Update the calendar each month with actual figures and roll it forward. A 13-week cash flow forecast handles the near term in detail, the 12-month calendar shows the shape of the year, and an emergency cash buffer sits on top for surprises. For the stock side of the December peak, see stock planning for December.
Where Pryme fits
The Finance agent on a Pryme Business Account can prepare a monthly update of the cash calendar from your transactions and remind you of remittance dates; a person approves any payment above the ceiling you set.
Questions people ask
How do seasonal businesses manage cash flow?
By mapping a 12-month cash calendar, finding the lowest point of the running total, holding a reserve at least that large from peak months, and planning fixed costs and remittances for slow months.
How much cash reserve should a seasonal business keep?
At least the deepest cumulative shortfall in your slow months, plus a margin for a worse year. Work it out from last year's actual cash in and out.
When should I start saving for the slow season?
From the first peak month. Move a fixed share of peak receipts into a separate reserve as soon as they come in.
Can I delay PAYE or pension in a slow month?
You should not. PAYE is due by the 10th of the following month and pension within seven working days of salary, and late tax payment attracts a penalty and interest.
Sources
- Voice of Nigeria: Nigeria's headline inflation drops to 14.63 per cent (NBS CPI September 2026, 16 Oct 2026) · accessed Oct 2026
- PwC Worldwide Tax Summaries: Nigeria, individual tax administration (last reviewed 29 May 2026) · accessed Oct 2026
- ThisDay: CPS, what you should know about employee's rights (20 Mar 2023) · accessed Oct 2026
- PwC Worldwide Tax Summaries: Nigeria, corporate tax administration (last reviewed 29 May 2026) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.