3 Writing Portfolio Work Samples Anyone Can Build in a Week

Note: This is an excerpt from my upcoming book, Future-Proof Your Freelance Writing Career: A practical freelancing guide for the AI era, available May 2026. Subscribe for updates and preorder information.

You’re building a writing portfolio from scratch, so where do you get clips or writing samples? Once you’ve decided on a niche, the next step is creating work samples that demonstrate you have the skills to deliver content. If you already have a few client projects under your belt, that’s fantastic. You’ll start with those. 

For everyone else who’s just starting out, these three projects are the fastest and most credible ways to show your skill. None of them require a client. You just need to clearly label them as speculative work in your portfolio. 

Portfolio Sample Type #1: The mock assignment

Pick a real company in your target niche and create a piece of content they should have but don’t yet. 

How? Research their existing content and identify a content gap. It could be a topic their competitors are covering that they’re not, a format they’ve never tried (like a case study), or an article directed at an audience segment they’re not speaking to (but should be). 

Write the piece as if they’d hired you to do it. A well-executed mock assignment demonstrates you have writing ability and strategic thinking. You identified a real need, understood a real audience, and produced something with a clear purpose. When you show this to prospective clients, you’re showing them how you think. 

Some writers have landed clients by sharing mock assignments with the companies they were created for. Sort of like a “here’s what I could do for you” calling card. Best case scenario, you could start a conversation if you share it with the company. Either way, you get a strong portfolio piece.

Portfolio Sample Type #2: The explainer or guide

Choose a complex topic in your niche and write a clear, well-structured explainer aimed at a non-specialist audience. 

This format is powerful for writers targeting B2B clients, because they often have to make complex products and services understandable to people who have never heard of them. Clear explainers are exactly what those clients need and struggle to produce. 

A former healthcare journalist might write a guide to understanding value-based care models for small practice administrators. A writer targeting fintech clients might produce a plain-English breakdown of how embedded finance works. 

These pieces don’t need to be published to be useful as a portfolio sample. They just need to be genuinely useful and clearly targeted at a specific audience with a specific need.

Portfolio Sample Type #3: The rewrite

Find a real piece of content in your target niche that isn’t working. Maybe a company’s About page that’s too vague, a blog post that buries its point, or a case study that reads like a press release. Rewrite it demonstrably better. Use some discretion here and change the company’s name, so you’re not insulting anyone or potentially putting off future clients.

Include the original copy alongside your version and write a brief note explaining the choices you made and why. This format does something the other two don’t: it shows that you can diagnose problems in existing copy, not just execute assignments. 

This is a great way for writers to position themselves as strategic partners. It shows you can improve what’s already there, and companies tend to refresh their content every two to four years. Some writers specialize in revamping or updating existing copy, and that might turn out to be your sweet spot.

Before and after samples tend to be compelling. Just be thoughtful about which companies you use for this exercise. Best practice is to change the name and details enough that it’s not obvious which company is targeted. You don’t want to insult their team or come across as calling them out. The goal is only to show you know how to analyze and improve existing copy.

How to incorporate writing portfolio work samples

Three samples built around your niche is enough to get started. You don’t need ten or twenty samples in your portfolio. You need a small number of genuinely strong ones that make a client think, OK, this person understands my world.

For more information on starting a freelancing career, subscribe to the site for updates on the new book. Or visit the LWP writing portfolio guide for links and free guidance on building your online writing presence.