The UK Discount Index 2026 — Inside Our Verified Code Data

The UK Discount Index is our periodic look inside our own database of verified discount codes — what they're actually worth, who they're aimed at, and where they cluster. Unlike third-party shopping statistics, every figure here comes from codes our team has tested at the checkout. For the wider market picture — online retail share, voucher usage trends and spending data — see our UK voucher code statistics; this Index focuses purely on our own verified-code data.

Everything below is a snapshot taken in May 2026, drawn from 642 verified codes across 222 UK retailers in 13 categories. Each code in our index is tested against the retailer's checkout before it's published, and removed once it expires or stops working, so the figures shift over time. This is our verified index — not a census of every code in the UK market — but it offers a rare, like-for-like look at how British retail promotions are built.

How UK discount codes break down by type

The first thing the data shows is how evenly the main discount types are split. As of our May 2026 snapshot:

• Percentage-off codes — ~31% (e.g. "20% off your order")
• Fixed-pound codes — ~30% (e.g. "£10 off when you spend £50")
• No-code deals — ~30% (sale events, bundles and offers that need no code)
• Free-delivery codes — ~9%

The near-three-way tie between percentage, fixed-pound and no-code deals is the headline finding. Shoppers often assume "discount code" means a percentage off, but in practice a fixed-pound saving or a no-code sale is almost equally likely. Free delivery — frequently the offer people most want — is comparatively scarce at under one in ten codes.

The "new customer" finding

A common frustration is that the best offers seem reserved for first-time buyers. The data offers some reassurance: at the time of writing, only about 6.5% of codes in our index are flagged new-customer-only. The large majority are open to existing customers too.

That said, "open to everyone" doesn't mean "no strings". Minimum-spend thresholds, excluded brands and single-use limits are common, which is why we list the key terms on every code and recommend checking them at checkout.

Where the codes cluster — by category

Codes are far from evenly spread across retail sectors. Counting each code under its retailer's category (retailers that sit in more than one category are counted in each), the leaders in our May 2026 snapshot are:

1. Travel — the most code-heavy category in our index
2. Home & garden
3. Health & beauty
4. Fashion
5. Electronics

At the other end, categories such as books, software & streaming, and supermarkets carry relatively few codes. This partly reflects how many retailers we track in each sector, but it also mirrors a real-world pattern: travel, home and beauty brands lean heavily on promotional codes, whereas grocers and subscription services discount far less often.

Are the codes time-limited?

About 68% of codes carry a specific expiry date, while roughly 32% are evergreen with no stated end date, as of our snapshot. The two-thirds with deadlines are a reminder that the best savings are often genuinely time-sensitive — though we only show countdown urgency on codes that have a real expiry date, never as a manufactured pressure tactic.

How this fits the wider UK picture

These promotion patterns sit against a backdrop of steadily digital retail. According to the Office for National Statistics, the proportion of UK retail sales made online rose to 28.7% in March 2026 — close to £3 in every £10 spent. As more shopping moves online, the discount code becomes a more central part of how people manage spending.

That matters most for those on tight budgets. In its 2025 survey, Save the Student found students spend an average of around £1,142 a month, with the Maintenance Loan typically falling short of living costs by roughly £500 a month — both figures the latest available at time of writing. For shoppers in that position, the structure of discount codes — how many are open to everyone, how many are time-limited — isn't trivia; it shapes how much they can realistically save.

Related reading

If you want to turn these patterns into actual savings, a few of our guides go deeper:

• The best times to shop: a UK retail calendar — when prices typically drop across the year.
• Browser extensions that save money in the UK — tools that surface codes automatically.

And to browse the most code-heavy categories from our data directly: travel deals, health & beauty deals, and home & garden deals.

Methodology

The figures in this article come from our internal database of UK discount codes, captured as a snapshot in May 2026. Each code is verified against the retailer's live checkout before publication and removed when it expires or fails. Category totals count a code once per category its retailer belongs to, so multi-category retailers contribute to more than one total; as a result, category figures sum to more than the headline code count. Percentages are rounded and will drift as offers are refreshed. External context is cited from the ONS and Save the Student and reflects their most recent published figures at the time of writing.

Sources & References

• Office for National Statistics — Retail Sales, Great Britain: March 2026

• Save the Student — National Student Money Survey 2025