Cloud Storage for Business Documents — A Comparison

The Accounted Editorial Team·3 March 2026·7 min read

If you're still saving important business documents to your laptop's hard drive and hoping for the best, it's time for a change. Hard drives fail. Laptops get stolen. Coffee gets spilt in places it really shouldn't. And when your invoices, contracts, and tax records vanish, HMRC won't accept "my laptop broke" as an excuse.

Cloud storage solves this problem neatly. Your files are saved online, accessible from any device, and automatically backed up. But with several major providers competing for your attention — and your money — choosing the right one isn't always straightforward.

Let's compare the most popular cloud storage options for UK sole traders and small business owners, and help you decide which one deserves your trust (and your documents).

Why Cloud Storage Matters for Your Business

Peace of Mind

The most obvious benefit is security. When your files live in the cloud, they're protected against hardware failure, theft, and accidental deletion. Most providers keep multiple copies of your data across different servers, so even if something goes wrong on their end, your files are safe.

Access Anywhere

Cloud storage means you can pull up a contract on your phone, check an invoice on your tablet, or share a document with your accountant without emailing attachments back and forth. If you've ever been stuck without an important file because it was on your other computer, you'll appreciate this.

Collaboration

If you work with subcontractors, virtual assistants, or an accountant, cloud storage makes sharing files simple. You can grant access to specific folders, control who can edit versus who can only view, and see a full history of changes.

For a broader look at how technology can streamline your admin, have a read of our guide on digital transformation for small businesses.

The Main Contenders

Google Drive

Google Drive is the default choice for millions of businesses, and for good reason. If you already use Gmail, you've got 15 GB of free storage built in. Upgrading to Google One gives you 100 GB for £1.99 per month or 2 TB for £7.99 per month.

Strengths: Google Drive integrates seamlessly with Google Docs, Sheets, and Slides, which means you can create and edit documents directly in the browser without installing anything. Search is excellent — Google's search technology makes finding files genuinely fast, even in large libraries.

Weaknesses: The desktop app (Drive for Desktop) can be a little confusing, with its concept of "streaming" files versus storing them locally. Privacy-conscious users may also have reservations about Google's data practices, though business accounts come with stronger privacy commitments.

Best for: Sole traders who already use Google Workspace, or anyone who values simplicity and strong search.

Microsoft OneDrive

OneDrive comes bundled with Microsoft 365, which means if you're paying for Word, Excel, and Outlook, you've already got 1 TB of cloud storage included. The standalone OneDrive plan offers 100 GB for £1.99 per month.

Strengths: If your business runs on Microsoft Office, OneDrive is the natural choice. Integration with Word, Excel, and Outlook is tight — you can save directly to OneDrive from any Office app, and co-authoring documents in real time works well. The "Personal Vault" feature adds an extra layer of security for sensitive documents.

Weaknesses: OneDrive can be sluggish to sync large numbers of files, and the web interface isn't quite as intuitive as Google Drive's. If you don't use Microsoft 365, the value proposition is weaker.

Best for: Businesses that rely on Microsoft Office and want everything in one ecosystem.

Dropbox

Dropbox was one of the first mainstream cloud storage services, and it's still going strong. The free tier offers just 2 GB (not much use for business), but Dropbox Plus gives you 2 TB for £9.99 per month.

Strengths: Dropbox is arguably the most reliable sync engine available. Files appear on all your devices quickly and consistently, and the "Smart Sync" feature lets you see all your files in Finder without them taking up local storage. Dropbox Paper is a decent document-creation tool, and integrations with third-party apps are extensive.

Weaknesses: It's more expensive than Google Drive and OneDrive for comparable storage. The free tier is too small to be useful. And Dropbox has had security incidents in the past, which may concern some users.

Best for: Users who need rock-solid syncing across multiple devices and don't mind paying a premium.

iCloud Drive

If you're firmly in the Apple ecosystem — iPhone, iPad, Mac — iCloud Drive offers tight integration with all your devices. Plans start at 50 GB for £0.99 per month, with 200 GB for £2.99 and 2 TB for £8.99.

Strengths: iCloud Drive works beautifully with Apple's built-in apps. Files saved on your Mac appear on your iPhone instantly. The interface is clean and simple, and Apple's privacy credentials are strong.

Weaknesses: Cross-platform support is limited. If you ever need to access your files from a Windows PC or Android phone, the experience is clunky at best. Business features like advanced sharing and collaboration are basic compared to Google Drive or OneDrive.

Best for: Sole traders who use Apple devices exclusively and want a simple, private solution.

How to Choose the Right Cloud Storage

Consider What You Already Use

The easiest way to choose is to look at what software you're already paying for. If you have Microsoft 365, use OneDrive — you're paying for it anyway. If you use Google Workspace, stick with Google Drive. There's no point paying for a separate service when you've already got excellent storage included.

Think About Who Needs Access

If you regularly share files with clients, subcontractors, or your accountant, choose a provider with strong sharing controls. Google Drive and Dropbox are both excellent here. OneDrive works well too, though recipients sometimes find Microsoft's sharing links confusing.

Check the Storage Limits

For most sole traders, 100 GB to 1 TB is more than enough. But if you work with large files — video, photography, design work — you may need 2 TB or more. Compare the costs at the storage tier you actually need, not just the headline price.

Don't Forget Security

All four major providers use encryption in transit and at rest, but the details vary. Two-factor authentication is available on all of them and you should absolutely enable it. For sensitive financial documents, OneDrive's Personal Vault or an encrypted folder within your chosen service adds extra protection.

We've covered security in more depth in our guide to backing up your business data.

Organising Your Cloud Storage

Having cloud storage is one thing; keeping it organised is another. Here are a few tips to stop your digital filing cabinet turning into a digital junk drawer.

Create a Clear Folder Structure

Set up top-level folders for the main areas of your business: Invoices, Expenses, Contracts, Tax, and so on. Within each, create subfolders by year or by client, depending on what makes sense for you.

Name Files Consistently

Adopt a naming convention and stick to it. Something like "2026-03-03_Invoice_ClientName_001.pdf" is far more useful than "Document (3) final FINAL.pdf". Your future self will be grateful.

Archive Old Files

Don't delete old documents — you may need them for tax purposes — but do move them into an "Archive" folder so they're not cluttering your day-to-day view.

A Note on GDPR

If you store any client data in the cloud — names, email addresses, project details — you need to be aware of your GDPR obligations. All four providers we've discussed offer GDPR-compliant storage, but the responsibility for how you handle personal data ultimately sits with you. Make sure you understand what data you're storing, why, and how long you're keeping it.

Tools like Accounted store your financial data securely in the cloud with GDPR compliance built in, so you don't have to worry about whether your accounting records are properly protected. But for other business documents, it's worth reading up on GDPR for sole traders to make sure you're covered.

Our Recommendation

For most UK sole traders, Google Drive or OneDrive will be the best choice — largely because you're probably already paying for one of them. Both offer generous storage, solid security, and good sharing features.

If you need the absolute best syncing experience and don't mind paying more, Dropbox is hard to beat. And if you're all-in on Apple, iCloud Drive keeps things simple.

The most important thing is that you're using something. Keeping all your business documents on a single device with no backup is a risk you really don't need to take.

Accounted helps UK sole traders stay on top of their bookkeeping and tax. Start your free 30-day trial at getaccounted.co.uk

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