Best Demand Forecasting Software for UK Wine Importers

UK wine duty has changed twice in two years, and the two changes do different things to a forecast. On 1 February 2025 the wine easement ended and every still wine began to be taxed on its exact labelled strength. On 1 February 2026 every duty rate rose by 3.66%, taking still wine to £30.62 per litre of pure alcohol. The first change reshaped the range. The second raised its floor.

For importers, that turns demand planning into an SKU-level exercise in which duty, channel and stock position all matter. This guide covers what changed, what it does to shipment-based forecasts, what to look for in forecasting software, and where Vintaflow fits.

What the duty changes actually did

From August 2023 to January 2025 the easement taxed every still wine between 11.5% and 14.5% ABV as if it were 12.5%. The WSTA estimated those wines at 85% of the UK market. When the easement ended in February 2025, stronger wines took the biggest step: the WSTA put the duty increase on a 14.5% red at 54p a bottle, about 80p with VAT.

The February 2026 uprating was smaller per bottle but landed on every line. At £30.62 per litre of pure alcohol, a 75cl bottle of 12% wine carries about £2.76 in duty, 13.5% about £3.10 and 14.5% about £3.33, before VAT. That is 10p to 12p more than the year before.

Price elasticity at UK retail is not theoretical. The WSTA reported that HMRC alcohol receipts fell £209 million in the first nine months of the 2024 to 2025 financial year compared with the year before, as volume fell faster than rates rose.

Why shipment-history forecasts break under strength-based duty

A traditional importer forecast extrapolates trailing twelve-month shipments and assumes the cost structure underneath them is stable. Under strength-based duty that assumption fails in three ways.

• Every SKU has its own cost base. A 12% Bordeaux and a 14% Rioja at the same shelf price now carry duty about 45p apart, so one absorbs a rate rise more easily than the other. Grouping them in one forecast line blends two different demand responses.
• Stock sits across several tiers. Importer bond, agents, merchants and multiple retailers each hold inventory, and an error builds up in bond before it shows on the shelf.
• Some origins were already shrinking. Australian shipments to the UK fell 6% in volume to 192 million litres in the year to June 2026, and only 3% in value, which says commodity lines are being cut harder than premium ones.

In that environment, last year plus a percentage is not just imprecise. It hides where the volume is actually going.

If you want to test your own range against this, book a 30-minute conversation through the Vintaflow contact page.

A worked example: same shelf price, different economics

Take two red wines that both sit on a multiple's shelf at £9.99. Strip out VAT at 20% and each bottle has about £8.33 to cover duty, the retailer's margin, distribution, the importer's margin and the wine itself.

• The 12.0% wine carries about £2.76 in duty, leaving roughly £5.57 for everything else.
• The 14.5% wine carries about £3.33, leaving roughly £5.00.

That is about 10% less money in the chain for the stronger wine at the same price. When the next uprating arrives, the stronger wine is the one whose price moves first, or whose margin disappears if the price holds. In a forecast, those two SKUs should not share a line, a promotion assumption or a price elasticity.

The pattern repeats across a typical importer range. Warm-climate reds and fuller-bodied, high-alcohol whites sit at the top of the duty scale; lighter whites, many rosés and lower-alcohol wines sit at the bottom. A portfolio review that sorts SKUs by labelled strength and price point, rather than by country or supplier, usually shows where the next year's volume risk sits.

Planning around the duty calendar

UK duty rates have been uprated on 1 February in both 2025 and 2026, with the rate set at the Budget beforehand. That gives importers a predictable planning point, and three habits follow from it:

• Model the next uprating before it is announced. Use a plausible range, such as the last two RPI rates, and see which SKUs cross a retail price point.
• Watch duty-paid cover going into February. Stock cleared from bond before a rise and sold after it protects margin only if it sells at the planned rate; slow lines simply carry the cost for longer.
• Separate the price effect from the trend. Compare the same weeks year on year and by channel, so a one-off step in January and February is not read as a permanent change in demand.

What good demand forecasting looks like for a UK importer

The strongest UK importer forecasts share four traits:

• SKU and channel resolution. On-trade and off-trade respond differently to a duty rise. The off-trade passes it to the shelf quickly; the on-trade absorbs more of it at premium price points and reacts later.
• Depletion, not only shipments. Sell-through from merchants and multiples shows the demand response weeks before the next purchase order does.
• Stock by location. Bonded and duty-paid stock at the importer, plus positions at key agents and merchants, tied to the same plan so overstock is visible before markdowns start.
• Origin exposure. A book weighted to Australia or other southern-hemisphere origins starts from a different trend than one anchored in Europe.

What to look for in software

• Forecasts at SKU, market and channel level, not brand level.
• The ability to bring in depletion and stock reports from partners in the formats they already produce.
• Dashboards that show inventory and sales performance by account and by warehouse.
• A clear boundary on duty: the software should use your duty and landed-cost figures, not guess at them.

Where Vintaflow fits

Vintaflow forecasts demand using seasonality, trends and historical performance. It provides account-level performance and inventory dashboards and reports supplier and customer inventory and sales performance, so an importer can see which accounts and SKUs are slowing after a duty change and which are holding.

Vintaflow does not calculate excise duty, landed cost or pricing. Those stay with the importer's commercial and finance systems, and the importer decides how a duty change should alter pricing, purchasing and promotion. No ERP replacement is required.

Three moves for the next quarter

1. Recompute landed cost at labelled strength for every SKU. This shows which lines lost the most margin across the two changes and where shelf prices are most exposed.

2. Compare depletion before and after 1 February 2026 by SKU and channel. The weeks either side of the change show the price response more clearly than any annual summary.

3. Set a stock-cover threshold that triggers a reforecast. When duty-paid cover on a SKU passes six to eight weeks, review the forecast before the next replenishment rather than reordering on trailing velocity.

To walk through the data you already hold for your UK portfolio, book a conversation with Vintaflow.