SMS marketing is one of the most direct channels a UK small business can use. With mobile phones now central to how people shop, bank, and communicate, a well-timed text message can cut through the noise of crowded inboxes and social feeds. But does SMS marketing increase sales, or is it just another marketing trend?
For women running businesses in the UK, the question matters because budget and time are rarely unlimited. This article looks at what current UK data says about SMS marketing performance, the rules you must follow, and how to use text messaging to increase revenue without annoying your customers.
Why SMS marketing still works
Text messages benefit from simplicity. They land on a device most people check dozens of times a day, and they do not require an app download, login, or strong internet connection. Industry data consistently shows that SMS outperforms email on key engagement metrics.
According to Gartner research cited by SMS marketing providers in 2025, text messages have an open rate of around 98%, compared with roughly 20% for email. Response rates are also significantly higher. Attentive, a mobile messaging platform, reported in 2025 that SMS response rates can be as much as 45%, while email response rates typically sit below 10%.
Ofcom’s 2024 Communications Market Report found that 94% of UK adults own a mobile phone, and smartphone ownership remains above 90%. That near-universal reach makes SMS a practical option for businesses targeting local customers, appointment-based services, or online shoppers.
What the numbers say about sales impact
High open rates do not automatically mean higher revenue. The important measure is whether recipients take action, such as redeeming a code, completing a purchase, or booking an appointment.
Research from Klaviyo in 2025 found that UK ecommerce brands using SMS marketing saw conversion rates of around 3.5% per campaign, with some sectors such as beauty and fashion performing higher. For comparison, email marketing conversion rates for small UK retailers typically range from 1% to 2%.
Mobile coupons sent by text also perform strongly. A 2024 study by Juniper Research estimated that global mobile coupon redemption rates would exceed 10% by 2026, driven largely by SMS and wallet-based delivery. Paper coupons, by contrast, often redeem at less than 1%.
Case studies from UK marketing agencies show similar patterns. A 2025 report from Textlocal highlighted a UK hospitality chain that used SMS to promote mid-week offers and saw a 25% uplift in footfall during quiet periods. Another UK retailer reported a return of £4.50 for every £1 spent on SMS campaigns, according to data published by FireText in 2025.
When SMS marketing can increase sales
SMS works best when the message is relevant, timely, and easy to act on. The following conditions tend to produce the strongest results:
- Existing customer relationships: Texts to people who have already bought from you or actively opted in convert better than cold outreach.
- Time-sensitive offers: Flash sales, appointment reminders, and last-minute availability create urgency.
- Clear calls to action: A single link, code, or instruction beats a long message every time.
- Personalisation: Using a customer’s name, location, or purchase history can lift response rates.
- Abandoned cart recovery: A short reminder text can recover sales from shoppers who left items behind.
For women-led product businesses, SMS can support seasonal campaigns, product launches, and loyalty programmes. For service-based businesses, it is particularly effective for appointment reminders, follow-ups, and rebooking prompts.
The legal rules UK businesses must follow
SMS marketing in the UK is regulated, and the penalties for getting it wrong can be serious. You must comply with the UK General Data Protection Regulation (UK GDPR), the Data Protection Act 2018, and the Privacy and Electronic Communications Regulations 2003 (PECR).
Key requirements include:
- Consent: You generally need explicit consent to send marketing texts to individuals. There is a limited exception for texts to existing customers about similar products or services, known as the “soft opt-in,” but it must include a clear opt-out route.
- Opt-out: Every marketing text must tell the recipient how to stop receiving messages, usually by replying STOP.
- Sender identification: You must identify your business clearly in the message.
- Data protection: You must keep contact details secure and only use them for the purpose agreed.
The Information Commissioner’s Office (ICO) can fine businesses that breach PECR. In 2024, the ICO issued enforcement action against several UK companies for unlawful marketing calls and texts, showing that the rules are actively enforced.
How to start SMS marketing on a small budget
You do not need enterprise software to test SMS marketing. Several UK providers offer pay-as-you-go pricing, and costs usually fall as volume rises. Request quotes from two or three providers so you can compare per-message rates and any monthly platform fees. Popular UK options include Textlocal, FireText, and FastSMS.
Before spending money, build a clean list. Collect mobile numbers through your website checkout, booking form, or in-store sign-up, and always record consent. Start with one campaign type, such as a welcome offer for new subscribers or a reminder for lapsed customers, and measure the result.
Track these metrics from the start:
- Delivery rate: How many messages were successfully delivered.
- Click-through rate: How many recipients clicked your link.
- Conversion rate: How many clicks led to a sale or booking.
- Revenue per message: Total campaign revenue divided by messages sent.
- Unsubscribe rate: How many people opted out.
Common mistakes to avoid
SMS marketing can backfire if it feels intrusive. Avoid sending messages too frequently, at unsociable hours, or without a clear purpose. The best times to send marketing texts in the UK are typically mid-morning to early afternoon on weekdays, though this varies by audience.
Do not buy contact lists. Numbers gathered without proper consent are likely to generate complaints and can breach PECR. Also avoid using shortened links from untrusted sources, as these can look suspicious and reduce click-through rates.
Finally, make sure your website or checkout works well on mobile. A strong text message will fail if the landing page is slow or difficult to use on a phone.
Action steps to start SMS marketing
- Review your current customer database and identify where you already collect mobile numbers.
- Check that your consent wording covers SMS marketing and includes an opt-out option.
- Choose one SMS campaign to test, such as a flash sale, abandoned cart reminder, or re-engagement offer.
- Set a small budget, send to a segmented list, and measure delivery, click-through, and conversion rates.
- Use the results to refine your message timing, wording, and audience before scaling up.
Final thoughts on SMS marketing sales
So, does SMS marketing increase sales? For most UK small businesses, the answer is yes, provided it is used with consent, relevance, and a clear call to action. With open rates near 98% and conversion rates that often exceed email, SMS remains a high-impact, low-cost channel. For women in business looking to grow revenue without a large advertising budget, it is a channel worth testing carefully and measuring closely.
For more ways to grow your business, read our guide on how to grow your business with social media in the UK and our tips on digital marketing strategies that scale UK small businesses.
