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What is the 80/20 rule for startups?

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Have you ever spent an entire day working on your startup and, by the end of it, wondered:

“What did I actually get done?”

You answered emails. Tweaked your website. Added something to your product. Posted on social media. Joined a meeting. Maybe even spent three hours researching something that felt important at the time.

But did any of those things actually move the business forward?


This is where the 80/20 rule, also known as the Pareto Principle, can be useful.


The idea is simple:

A small number of inputs often produce a large share of your results.

In startup terms, this means that instead of trying to do everything, you need to figure out which few things are actually making the biggest difference and put more of your limited time, money and energy there.

The exact ratio will not always be 80/20. It could be 70/30, 90/10 or something else entirely.

The point is to find your vital few.

So, where can you apply this thinking to your startup?


1. Your Product: Which Features Actually Matter?

When building a product, it is tempting to keep adding features.

Your app needs this. Your website needs that. Maybe users would also like another function. And before you know it, you have spent months building a product with 30 features when your customers really needed five.

Look at your product and ask:

Which features do customers actually use?

You may find that a small number of features account for most of your user engagement.

That is your 20%.

Instead of constantly adding more, focus on making those core features really useful, reliable and easy to use.

For an early-stage startup, a simple product that solves one problem well can be much more valuable than a complicated product that tries to solve everything.

Ask yourself: If I could only keep five features, which ones would I keep?

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2. Your Customers: Who Is Actually Driving the Business?

Not every customer contributes equally to your business.

You may have 100 customers, but perhaps 20 of them generate most of your revenue, make repeat purchases, refer other customers or give you the feedback that helps improve your product.

Those customers deserve your attention.

This does not mean ignoring everyone else.

It means understanding who your most valuable customers are and why they chose you.

  • What do they have in common?
  • What problem are you solving particularly well for them?
  • Could you find more customers like them?

Sometimes, the fastest way to grow is not to chase an entirely new market. It is to understand the customers who already love what you do.

Ask yourself: Who are the customers I would be most worried about losing?


3. Marketing: Which Channels Are Actually Bringing Customers?

Being active everywhere can feel like good marketing.

Instagram. LinkedIn. TikTok. Email. Ads. Events. SEO. Partnerships.

But if you are a small startup with limited resources, trying to do everything can quickly become expensive and exhausting.

Instead, look at the numbers.

Which channels are actually bringing you:

  • Leads?
  • Paying customers?
  • Repeat customers?
  • High-quality enquiries?

You might discover that one or two channels are responsible for most of your meaningful results.

That is where the 80/20 mindset comes in.

Do more of what is working before adding more things to your plate.

If LinkedIn brings you 10 serious B2B leads and TikTok brings you 10,000 views but no customers, the numbers are telling you something.

Ask yourself: If I had to cut my marketing activities in half tomorrow, which ones would I refuse to stop?


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4. Your Team and Time: What Actually Moves Things Forward?

Startups have a lot of work.

But busy does not always mean productive.

Some tasks are necessary but low impact. Others may look small but have a huge effect on the business.

The same applies to your team.

A small number of people may be responsible for a large amount of progress, not because the others are unimportant, but because their roles directly affect your most important goals.

The same can happen with your own schedule.

  • Maybe two hours spent speaking to potential customers teaches you more than an entire day spent adjusting your pitch deck.
  • Maybe one partnership meeting brings more opportunities than ten social media posts.
  • Maybe fixing one major customer problem prevents dozens of future complaints.

The question is:

What work actually changes the trajectory of the business?

Find it.

Then protect time for it.


5. Your Resources: Where Should You Put Your Money?

For startups, money is often just as limited as time.

And this is where the 80/20 principle can become particularly useful.

You might have a limited marketing budget, a small team, limited product development resources or only a few months of runway.

You cannot invest heavily in everything.

So ask:

Where is each additional dollar, hour or person likely to create the most value?

  • Perhaps one marketing channel consistently produces customers.
  • Perhaps improving your core product will increase retention.
  • Perhaps hiring one specialist will remove a major bottleneck.
  • Perhaps entering one particular market has much more potential than expanding into five markets at once.

The goal is not simply to spend less.

It is to put your resources where they have the highest potential return.


The 80/20 rule is really about knowing what to ignore

This may be the hardest part.

As a founder, there will always be another idea.

  • Another feature.
  • Another social platform.
  • Another potential market.
  • Another meeting.
  • Another opportunity.


And some of them will genuinely be good ideas.


But a good idea is not automatically the right priority right now.


The 80/20 rule encourages you to step back and ask:

What are the few things that are producing most of my progress?


Then ask the uncomfortable follow-up:

What am I spending time on that is producing very little?


That second question can be just as valuable as the first.


Because startup growth is not always about doing more.


Sometimes, it is about doing less, but doing the right things much better.

So, take a look at your startup this week.

  • Your product.
  • Your customers.
  • Your marketing.
  • Your team.
  • Your spending.

Where is your 20%?


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