A competitive advantage is something a business does better than its competitors that they can't easily copy, and that earns it more sales, higher margins or more loyal customers. Corporate Finance Institute (CFI) says it should be exclusive to the business and created internally, which is why it's often called a protective moat.
Shopify's definition is more practical: a specific capability or position that brings stronger sales, higher margins or better customer retention than competitors facing the same conditions. That last part is the important bit. If everyone in your market has it, it doesn't count.
What a competitive advantage can be built on
CFI lists the usual foundations:
- Access to natural resources competitors can't get
- Highly skilled labour
- Strong brand awareness
- New or proprietary technology
- Price leadership
CFI adds three building blocks every advantage needs: a clear value proposition, a defined target market, and a defined set of competitors, including non-traditional and emerging ones. It also says strong, repeatable advantages can attract capital more readily and more cheaply.
Porter's three generic strategies
| Strategy (Porter, via CFI) | What it means | Typical trade-off |
|---|---|---|
| Cost leadership | Lowest-cost provider at standard quality | Low margin per unit, so it needs volume |
| Differentiation | A unique product or service worth a higher price | Needs continuing R&D and investment |
| Focus | Serve one niche better than anyone | A narrower market |
CFI says focus comes in two variants, cost focus and differentiation focus. It also mentions Blue Ocean strategy, creating market space nobody else is competing in, as one way to combine differentiation and low cost. These generic strategies are separate from Porter's other framework, the five forces, which looks at the pressures on a whole industry, including the threat of new entrants.
The catch: what isn't a competitive advantage
This is the list I wish more owners read. Shopify says these don't count:
- Industry standards and baseline requirements, such as GDPR compliance or PCI-DSS. Everyone has to have them.
- Things competitors already dominate. Shopify's line: don't try to out-Amazon Amazon on fast shipping.
- Trendy tools that anyone can adopt tomorrow.
- Claims every company makes, such as excellent customer service or high quality, unless you're measurably and consistently different.
That last one is where most small businesses get stuck. "Great service" is a claim. "We answer every message within an hour" is a difference you can prove.
Temporary vs sustainable advantage
Shopify separates the two. A temporary advantage, such as a price discount, a viral campaign, a feature launch or early access to a channel, works quickly but fades once competitors respond. A sustainable advantage lasts because it's hard to copy, and it's usually rooted in cost, customer relationships or operational excellence. Shopify's example is Costco: its cost structure, supplier relationships and membership model have been built over a long time and are hard to reproduce.
Why it matters for your margins
Shopify's argument is blunt. Without something that sets you apart, you're left with one lever, lower prices, and when a competitor undercuts you, everyone's margin shrinks. It cites Amazon sellers facing margins of 5% to 15%, while Shopify merchants typically achieve net margins of around 10% and top performers reach 20% (Shopify's figures, as of October 2026).
Three examples from Shopify
- Guru Energy: a natural energy drink with plant-based ingredients and no sucralose or aspartame, with more than 25 years of sustained growth.
- Glossier: not cheaper and with no secret technology. Its advantage is community, built by reading customer comments and turning them into products such as Boy Brow.
- JOOLA: a German table tennis brand that focused on pickleball and designed a paddle with top players.
Shopify also quotes Ashwinn Krishnaswamy of the agency Forge on niching down: if you think you're too niche, you probably aren't niche enough.
Test yours in five steps
- List what customers say they choose you for.
- Remove anything every competitor also has to do.
- Test what's left with VRIO: is it valuable, rare, inimitable and non-substitutable?
- Pick one of cost leadership, differentiation or focus to lean on.
- Check every few months whether competitors have caught up.
Shopify suggests starting with a SWOT analysis, and my free SWOT analysis template will get you through step one quickly. For practical tactics once you know what your edge is, my older post on ways to get a competitive advantage has a list to work from.
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Where I come in
Most businesses do have an advantage. They just describe it in the same words as everyone else, so buyers never hear it. That's the gap I work on. With 23 years in marketing, I help small businesses and SaaS marketing teams find the one difference they can defend and say it in words a buyer remembers, then use it consistently across the site, the sales pitch and the content. You can see how I work on my work with me page.
My verdict
If a competitor could copy it next week, it isn't your advantage. Be specific and measurable: say "answered in under an hour", not "great service". And if you can't find anything that passes the VRIO test yet, pick a smaller niche until you can. It's far easier to be the obvious choice for one group than a forgettable choice for everyone.
Lower costs at higher volume are one source of that edge, covered in economies of scale.
Frequently asked questions
What is a competitive advantage in simple terms?
It's something a business does better than its competitors that they can't easily copy, and that earns it more sales, margin or loyalty.
What are the three types of competitive advantage?
Porter's three generic strategies, as CFI describes them, are cost leadership, differentiation and focus.
What isn't a competitive advantage?
Shopify says baseline requirements such as GDPR compliance, trendy tools anyone can adopt, and claims every company makes, such as great service, don't count.
What is the VRIO framework?
A test of whether an advantage is valuable, rare, inimitable and non-substitutable. Shopify recommends it for checking how strong yours is.
What's the difference between a temporary and a sustainable competitive advantage?
Shopify says a temporary one, such as a discount or a viral campaign, fades when competitors respond. A sustainable one is hard to copy and lasts.
