Most small business owners don’t have the time to do everything at once. Between running the business itself and trying to market it, something usually gets a rushed, half-hearted effort — and for a lot of businesses, that’s either email or social media, because both feel like they should be happening but neither gets proper attention.
If you can only focus properly on one of them right now, the data has a fairly clear answer. Here’s what it actually says, and why the real answer isn’t quite as simple as “just do email.”
What the Numbers Actually Say
Email marketing consistently delivers a return of roughly $36–$42 for every $1 spent, and some sources put the average as high as $70 for every $1 spent in strong-performing campaigns. Social media advertising, by comparison, typically returns closer to $2–$5 per $1 spent — a meaningful return, but nowhere near the same order of magnitude.
The gap shows up in conversion rates too. Email converts at somewhere between 4% and 8% depending on the type of campaign, while organic social media conversion sits under 1%, and even well-run paid social rarely breaks 1–2%. Part of this comes down to a simple difference in who you’re actually reaching: someone on your email list has already given you their email address — a small but real commitment — while a social media follower has usually just tapped a button once and moved on. Email subscribers are, on average, further along and more genuinely interested than the average follower.
There’s also a structural reason email holds up so well: you own the list. Organic reach on social platforms has been throttled for years — a post to 1,000 followers might realistically be seen by 20–100 of them before the algorithm decides who gets it. An email to 1,000 subscribers reaches 850–950 inboxes directly, with no algorithm deciding whether it’s worth showing.
So Why Doesn’t Everyone Just Do Email?
Because email and social media aren’t actually solving the same problem, and that’s the part most “which one wins” articles skip past.
Social media is where people discover businesses they didn’t already know existed. Email is where people who already know about you get converted and retained. If you only ever do email, you’re very good at talking to people who are already interested — but you have no way of finding new people to add to that list in the first place.
This is really the core of the decision: email is the stronger channel for converting people you already have a relationship with, but you still need something to build that relationship in the first place. For most small businesses, some level of social media presence remains the easiest, lowest-cost way to do that.
A Practical Starting Point, Not a Choice Between Two
Rather than picking one and ignoring the other completely, the sequence that actually works for most small businesses looks like this:
- Use social media for visibility, not for direct selling. Its job is to get your business in front of people who don’t know you yet — through content, local engagement, and enough consistency that people recognise the name.
- Use every social touchpoint to earn an email address. A newsletter signup, a discount for subscribing, a lead magnet, a booking form that captures an email — the goal of social media, in this model, isn’t the sale itself, it’s the introduction.
- Do the actual selling and retention through email, where the return on your time is dramatically higher and you’re not competing with an algorithm deciding whether your message gets seen at all.
If your time is genuinely limited — one afternoon a week, not five — this sequencing matters more than the individual channel decision. A small, well-maintained email list that you actually email consistently will outperform a social media presence you’re spreading yourself thin trying to maintain across three platforms.
When Social Media Should Actually Come First
There are real exceptions. If your business genuinely has no existing customer or contact list to build an email strategy around — a brand new business with zero audience — social media (or simply getting found in search) has to come first, because there’s nothing to email yet. Similarly, businesses that rely heavily on visual discovery (hospitality, design, anything people browse before buying) get genuine value from social media as a shop window, not just a lead-generation tool.
The honest answer, then, isn’t “email always wins” — it’s that email wins on return once you have people to email, and social media’s job is helping you get there faster.
Getting the Foundations Right First
None of this works particularly well without a website that can actually capture the email addresses social media sends its way and hold onto visitors’ attention once they land. If your site is slow, unclear, or doesn’t have an obvious way to sign up, both channels lose most of their value before the marketing even starts — which is really a variation on the credibility problem we’ve written about before, where a weak website quietly undermines everything built on top of it.
The Bottom Line
If you have to choose where to put real, sustained effort first, email marketing delivers a stronger return once there’s a list to send to. But the honest starting point for most small businesses without an existing list is a light, consistent social media presence purely to build one — then shifting the bulk of ongoing effort into email once that list exists.
Bildabiz works with small businesses across Bristol and the UK on both sides of this — building websites that actually convert visitors into subscribers and customers, alongside managed SEO and email marketing support. Find out more about our email marketing services or get in touch to talk through where your business should focus first.