Start Keeping Receipts: What Should a Small Fashion Business Actually Document?

Last week, we started with a simple question: what does it actually mean to prove sustainability? 

We separated the practice from the claim, and the claim from the evidence behind it.

If you buy your fabric locally, that is a practice.

If you say, “We source our materials locally,” that becomes a claim.

The invoices, supplier details, purchase records and material information sitting behind that claim become part of the evidence. 

Which usually leads to the next question: 

Okay. So what am I actually supposed to keep? 

Because the moment we start talking about “sustainability evidence,” I think the language makes the work sound much bigger than it needs to be. You hear "evidence" and imagine an ESG report, a certification, a legal document, a supplier audit, or an enormous folder containing information about everyone who has ever touched your supply chain. 

Those things can contain evidence. But evidence itself is much simpler. 

Evidence is anything that helps you substantiate what you say happened. 

Sometimes that is a contract. Sometimes it is an invoice. Sometimes it is a photograph, a proof of payment, an email or a WhatsApp message. 

Think about how we use evidence in ordinary life. You might not have a formal document proving that a conversation happened, but you have the screenshot. You have the timestamp. You have the message. Depending on what you are trying to establish, that might not be enough on its own, but it contributes to the picture. 

Sustainability evidence works in much the same way. 

A photograph might establish one part of what happened. An invoice establishes another. A supplier record adds context. A proof of payment tells us something else. Together, those records can help substantiate a claim. 

So before we start asking small fashion businesses to create more paperwork, I think we need to ask a different question: 

What evidence is your business already producing? 

Imagine a four-person fashion brand. You buy fabric from two local suppliers, work with a seamstress you have known for years, manufacture in small batches and save your offcuts for future collections. Most of your supplier conversations happen over WhatsApp. You pay some people by EFT, and occasionally you pay someone in cash. 

There is information being generated throughout that entire process. 

When you buy fabric, you generate invoices and receipts. Your patterns tell you how much material a garment requires. Your bank transactions and proofs of payment record money moving between the business, suppliers and workers.

Your photographs document materials, production processes, waste and finished products. Your contracts or MOUs record working relationships. Your WhatsApp conversations might contain agreements, supplier information and important decisions. 

Even your Instagram account may contain dated records of what your business has done and what it has publicly claimed. 

You probably have more evidence than you think. 

The problem is that it may currently be sitting in six different places. 

Your Notebook Is Still a System 

One of the assumptions I want us to get rid of is that information only becomes legitimate once it enters a formal piece of software. 

A designer with detailed notebooks is not automatically behind a designer using expensive ESG software.

Your notebook has a system too. 

I think about the way we used to take notes at school. I could sit next to somebody in the same lesson, and our pages could look completely different. Mine might have colours, little codes or drawings that helped me remember something. Somebody else’s might be beautifully structured bullet points. If you understood the way each of our brains organised information, you would realise we had recorded essentially the same lesson. 

The difference is not that one set of notes is real and the other isn’t. 

The difference is who can understand them. 

A notebook may be standardised to you. ESG software is standardised so that other people can understand the information too. 

And that is much closer to what we are trying to accomplish. 

I am not interested in telling an African fashion business that its systems are illegitimate because they do not look like somebody else’s systems. If your business has operated for years, there is already a way that information moves through it. There is already a way you order, make, pay, communicate and remember. 

We need to understand that system before we start replacing it. 

The goal is not paper bad, digital good. 

The goal is to move from information that is temporary, scattered or dependent on one person’s memory towards information that can be preserved, understood and retrieved.  

Because a record you cannot retrieve is not particularly useful when somebody asks you to prove something. 

The 48-Hour Test 

At OneThread, I use a fairly generous rule: 

If I ask you for a record, you should be able to produce it within 48 hours. 

Honestly, 48 hours is long. But I care less about the exact number than I do about the principle behind it. 

Recently, Liam and I were discussing part of the OneThread platform build. There was a feature I remembered being part of the product specification. He remembered it differently. 

I knew we had discussed it, but memory wasn’t enough. 

I also remembered writing it down. 

While we were still on the phone, I searched my email, found the document I had sent him months earlier, found the relevant sections, forwarded the original email and sent him the document again. 

It wasn’t sitting inside some elaborate knowledge-management platform. It was in my inbox. 

But it existed. I could find it. I could show when it had been sent. I could point to exactly what I was referring to. 

We’ve experienced the opposite too. Someone can be completely certain that they sent a document, only for us to check the recipient’s inbox and the sender’s outbox and discover that the email never actually went through. 

The document may exist. The person may genuinely remember pressing send. But we cannot demonstrate that the other person received it. 

There is a gap between knowing something happened and having a retrievable record of what happened. 

That is the habit I want us to start developing around sustainability. 

Not: Does my documentation look sophisticated? 

But: 

If somebody asked me to show them, could I? 

Start With the Business, Not the ESG Report 

You do not need to document everything tomorrow. Start with the ordinary movements of your business. 

Start with what you buy. Keep your supplier details, invoices and receipts. Record what material you bought, how much you bought and, where you know it, information about its composition and origin. 

Then look at who you work with. Employment contracts are useful, but not every relationship begins with a twenty-page contract. An MOU or another clear record of the working relationship is a start. Keep your payment records. If you pay through EFT, save the proof of payment. If somebody is paid in cash, record who was paid, how much, when, and have both parties acknowledge that the money was received. 

Then look at how you make. 

Patterns are evidence. 

If a pattern requires a certain amount of fabric, record it. If you know how much fabric you purchased and how much went into the garments you produced, you can begin understanding what should remain as offcuts or waste. Suddenly, your pattern-making process is not separate from your sustainability information. It is one of the places where information begins. 

The same applies after production. If you keep offcuts, what happens to them? Are they reused in another product? Stored? Given to somebody else? Sold? Discarded? 

After the garment leaves you, there is information there too. Repairs, alterations, returns, care conversations and customer feedback can tell you something about durability and what happens to your products after sale. 

And then there is what you say. 

If your website says you source locally, your Instagram says you minimise waste, or a product description says a garment was made using a particular material or technique, those statements become part of the sustainability story your business is telling publicly. 

You should know what evidence sits behind them. 

None of this requires you to build seventeen spreadsheets or start screenshotting every conversation you have. 

Please don’t. 

The first step is not creating more information. 

The first step is recognising what information is worth preserving. 

Your Business Needs to Remember Without You 

This becomes even more important as a business grows. 

When a company is small, the founder can accidentally become its operating system. 

You know the suppliers. You remember why decisions were made. You know how much fabric you normally order. You remember who worked on a garment. You know how onboarding works. You know where the patterns are. You know which WhatsApp conversation contains the thing everybody is looking for. 

That works until you are no longer the only person who needs to know. 

At OneThread, we are experiencing this ourselves. There are processes I currently know because I built them. But as we grow, I cannot be the only person who knows how to onboard somebody, where particular information lives or why a process works the way it does. 

That knowledge has to become transferable. 

A transcript from an onboarding call can help the next person learn how the conversation works. A documented process allows somebody else to repeat it. A shared record means the answer does not disappear because one person is unavailable. 

That is institutional memory. 

And sustainability information needs institutional memory too. 

Your practices should not become impossible to prove because somebody left the business, changed their phone, lost a notebook or simply forgot what happened three years ago. 

This Week, Don’t Build Anything Yet 

This week’s exercise is deliberately simple. 

Go looking. 

We’ve created the Small Fashion Business Evidence Checklist around six ordinary parts of running a fashion business: 

1. What you buy.

2. Who you work with.

3. How you make it.

4. What happens to waste.

5. What happens after you sell.

6. What you say publicly. 

For every record on the checklist, mark: 

1. Already have.

2. Need to start.

3. Not relevant to my business. 

And if you've marked Already have, there is one more question: 

1. Can I retrieve it within 48 hours? 

You might discover that you already have an enormous amount of evidence, but it is scattered between WhatsApp, email, your bank account, notebooks, your phone gallery and somebody else’s laptop. 

Good. 

Now you know. 

You might discover that something your business has done for years has never been recorded anywhere. 

Good. 

Now you know that too. 

A gap isn’t a judgement on the work you’ve been doing. It tells you where information is being lost and where a system could help preserve it. 

For now, don’t worry about verification. Don’t worry about building an evidence library. Don’t try to attach every invoice to a sustainability claim. 

Gather first. 

Put what you already have somewhere you can find it again. 

Because the goal isn’t to make your business look more formal. 

The goal is to make sure your business can remember what it has done. 

Next week, we’re going to look at why keeping those receipts is worth the effort: because the same information that helps you prove your sustainability can also help you access money, markets and opportunity.