Holiday Inventory Planning: How Much Stock to Order and When
Order too little for the holidays and you watch customers walk away from empty shelves. Order too much and your cash sits in a stockroom until spring. This guide shows you how to estimate holiday demand, decide how much to buy, time your orders and plan for what happens if you get it wrong.
Key takeaways
- Start with last year's sales by product and week, then adjust for growth, trends and planned promotions.
- Set a total holiday stock budget before you place a single order, so enthusiasm does not outrun your cash.
- Work backward from the date you need stock on the shelf, using real supplier lead times plus a buffer.
- Split orders into an initial buy and planned reorders where you can, and decide early what you will do with leftovers.
For many retailers, November and December bring a large share of annual sales. That concentration makes holiday stock the biggest bet of the year. The site already covers inventory management basics such as tracking stock, reorder points and counting methods. This guide focuses on the holiday-specific questions: how much extra to buy, when to order it and how to protect your cash flow if demand surprises you.
The approach works for physical shops, online stores and businesses that sell both. The numbers will differ, but the logic is the same.
Step one: understand last year's holiday
Your best forecasting tool is your own history. Pull sales data for October through January from last year, ideally by product and by week. Look for three things.
- Peaks: which weeks sold the most. For many US retailers, the week of Black Friday and the two weeks before Christmas stand out. In the UK, Canada and Australia, Boxing Day on December 26 can be another peak.
- Sellouts: which products ran out and when. Sales data hides lost demand, because you cannot sell what you do not have. Note the date each item hit zero.
- Leftovers: what was still on the shelf in January and how much you had to discount to clear it.
If you are new and have no history, use proxies: sales in your busiest non-holiday month, supplier advice on what similar shops buy, and a deliberately cautious first order with a planned reorder.
Common mistake
Using last year's sales as this year's forecast without adjusting for sellouts. If a product sold out on December 10, its sales number understates real demand. Estimate what you would have sold over the remaining days and add it back before you plan.
Step two: build a simple demand forecast
You do not need forecasting software. A spreadsheet with one row per product or category is enough. For each one, start with last year's holiday units and adjust for four factors.
- Overall growth. Compare your sales for the past few months with the same months last year. If you are up 10%, a similar uplift for the holidays is a reasonable starting point.
- Product trends. Raise forecasts for products gaining momentum and cut them for items that are fading. New products need an estimate based on similar items.
- Planned promotions. If you will feature an item in ads, emails or a Black Friday offer, expect it to sell more than last year.
- Lost sales. Add back estimated demand for items that sold out early.
Hypothetical example
Suppose a gift shop sold 400 scented candles last November and December, but ran out on December 12. Sales were running at about 12 a day before they ran out, so the shop estimates it lost around 120 sales in the final ten selling days. Its adjusted demand is about 520. The shop's overall sales are up 8% this year, so the forecast becomes roughly 560 candles.
Step three: set your holiday stock budget
A forecast tells you what customers might buy. A budget tells you what you can afford to buy. Many retailers use an "open to buy" approach: a set amount of money available for new stock in each period, based on planned sales, the stock you want at the end of the period and the stock you already hold.
A simple version looks like this:
Open to buy = planned sales at cost + planned ending stock at cost minus current stock at cost minus stock already on order
The planned ending stock matters. You want enough on January 1 to serve post-holiday shoppers and gift card holders, but not so much that you spend the spring discounting.
Split the total budget by category before you split it by product. If last year's holiday sales were 40% gifts and accessories, 35% core products and 25% seasonal items, use that mix as a starting point and then shift money toward categories that are growing. This stops one exciting new range from quietly eating the money you need for reliable bestsellers.
Check the budget against your cash flow forecast. Holiday stock is often paid for in September, October or November but sold in December. If you need a short-term credit line or extended supplier terms to bridge that gap, arrange it well before you need it.
Step four: time your orders
Work backward from the date you want each product on the shelf or ready to ship. For most holiday ranges, that is early November, so stock is ready for early shoppers and for Black Friday on November 27, 2026.
| Supplier type | Typical considerations | Practical ordering window |
|---|---|---|
| Overseas manufacturer, sea freight | Production time plus several weeks in transit, customs and port delays | Often summer or earlier for holiday ranges |
| Overseas supplier, air freight | Faster but more expensive per unit | Late summer to early autumn |
| Domestic wholesaler | Shorter lead times, but popular items sell out | September to October for the main order |
| Local makers and small brands | Limited capacity, handmade items | Agree quantities by late summer |
| Reorders of fast sellers | Depend on supplier stock levels | Agree in advance, place in November |
Ask every supplier for their real lead times this year and their cutoff dates for holiday orders. Add a buffer of one to two weeks for delays. If you buy from manufacturers in China or elsewhere in East Asia, remember that many factories close for Lunar New Year, which falls in late January or February. That affects restocking for spring rather than December, but it matters if you plan January promotions.
Step five: split the buy and plan reorders
Where suppliers allow it, avoid placing your whole holiday order at once. A common approach is to buy most of your forecast up front for slow or uncertain lead times, then hold back a portion as planned reorders for proven sellers.
- Core and proven items: buy most of the forecast early, since running out is costly.
- New or trendy items: buy a smaller first order and agree on a quick reorder if they sell.
- Seasonal-only items: buy cautiously, because leftovers such as holiday-themed decorations lose most of their value after December 25.
Pro tip
Track sell-through weekly from early November. Sell-through is units sold divided by units received. If an item has sold 50% of its stock by mid-November, it is likely to sell out, so reorder or adjust your promotions. If it has sold only 10%, consider moving it to a more visible spot or bundling it.
Plan for leftovers before you buy
Every holiday buy should come with an exit plan. Decide in advance what you will do if items do not sell.
Good ways to clear leftovers
- Boxing Day or January sales with clear end dates
- Bundles with full-price items
- Returning unsold stock where suppliers allow it
Costly habits to avoid
- Storing seasonal stock for a year without a plan
- Deep discounts on core products customers buy all year
- Reordering slow sellers just to hit a supplier minimum
Ask suppliers about return or exchange terms for unsold stock before you order, especially for new lines. Some offer "sale or return" terms for independent shops, which shift part of the risk back to the supplier. Leftover stock also affects your year-end accounts, since stock on hand at your financial year end is counted and valued, so talk to your accountant about how it will be treated.
Common holiday inventory risks
Beyond simple forecasting errors, watch for these season-specific risks:
- Supply chain disruptions: port congestion, carrier capacity and weather can all delay deliveries in the peak season.
- Returns: some holiday sales come back in January. The National Retail Federation's returns research has repeatedly found that a meaningful share of holiday purchases are returned, so do not treat every December sale as final when you plan January stock.
- Shrinkage: busy stores and temporary staff can mean more loss and miscounts. Count high-value items more often in December.
Your holiday inventory checklist
- Export last year's October to January sales by product and week
- Mark every sellout date and estimate the lost sales
- Build a forecast adjusted for growth, trends and promotions
- Set a total holiday stock budget that your cash flow can support
- Confirm lead times and holiday cutoffs with every supplier
- Split orders into an initial buy and planned reorders where possible
- Track sell-through weekly from early November
- Agree an exit plan for leftovers before the season starts
Frequently asked questions
How much extra stock should I order for the holidays?
There is no universal percentage. Start from your own holiday sales history, adjust for growth, sellouts and promotions, and then check the total against what your cash flow can support. For new businesses, order cautiously and agree a fast reorder with suppliers.
When should I place holiday orders?
Work backward from the date you need stock, which for most products is early November. Overseas orders often need to be placed months earlier, while domestic wholesalers may need orders by September or October before popular items sell out.
What if I have no sales history?
Use your best regular month as a baseline, ask suppliers what similar businesses buy and plan a smaller initial order with a reorder option. Track sell-through closely and adjust quickly.
Is it better to run out or to have leftovers?
It depends on the product. Running out of a core item loses sales and customers, while leftovers of a seasonal-only item lose value fast. Buy more boldly for core items you can sell all year and more cautiously for holiday-themed stock.
Related reading
The bottom line
Holiday inventory planning is a balance between disappointing customers and tying up cash. Base your forecast on real sales history, set a budget before you buy, order early enough to beat supplier delays, keep some money back for reorders and plan your leftovers in advance. Do that and the holiday season should end with happy customers and a stockroom that is lighter, not fuller, in January.
