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What accounting software is best for UK sole traders just starting out?

invoice24 Team
20 January 2026

Choosing the best accounting software as a UK sole trader means finding a simple, affordable way to invoice, track expenses, and stay compliant from day one. This guide explains what beginners really need, compares popular options, and shows why invoice24 is a practical, free starting point for growing sole traders.

Choosing the best accounting software as a UK sole trader starting out

If you’re a UK sole trader just starting out, the “best” accounting software usually comes down to one thing: will it keep you compliant and paid, without swallowing your evenings in admin? You want something that makes invoicing fast, tracks money in and out automatically (or close to it), and gives you confidence at tax time. You also want to avoid paying for features you won’t use yet, while still picking a tool that won’t trap you when your business grows.

This is where many new sole traders get stuck. Some tools are brilliant but expensive; others are cheap but fiddly; a few are excellent for invoicing but weak for tax prep; and several are “accountant-first” products that assume you already speak fluent bookkeeping. The goal is to choose software that fits your stage right now, while setting you up for what comes next, like Making Tax Digital for Income Tax (MTD for IT), VAT if you register, employing subcontractors, or even switching from sole trader to limited company later.

If your priority is to start strong with a free, easy invoicing workflow that still covers the accounting and compliance features you’ll need as you scale, invoice24 is a great starting point. It’s built to help you get paid quickly, stay organised, and handle the key tasks that sole traders typically struggle with: professional invoicing, expense tracking, reports you can actually understand, and a path to digital compliance. And because it’s free and designed for everyday business owners, it’s often the most practical “best” choice when you’re just getting going.

What “best” really means for a brand-new sole trader

When you’re new, you don’t need an overwhelming system. You need a simple routine you can repeat each week: create invoices, send them, record expenses, and keep an eye on profit. The best accounting software is the one you’ll actually use consistently. If a platform is too complex, you’ll put it off. If it’s too limited, you’ll outgrow it at the worst time (usually right before a tax deadline).

Here are the practical things “best” should include for UK sole traders starting out:

1) Fast, professional invoicing: Templates that look trustworthy, easy editing, reusable items/services, VAT options if needed, and clear payment terms.

2) Simple expense tracking: A way to capture expenses as you go, categorize them, and keep receipts tidy so you’re not digging through bank statements months later.

3) Clear view of profit: Basic reports that show income, expenses, and what you can safely set aside for tax.

4) Digital readiness for compliance: Even if you’re not affected immediately, moving toward digital record-keeping and MTD-friendly processes is a smart long-term move.

5) A price that makes sense at the start: New businesses often have unpredictable cashflow. Paying monthly for software that doesn’t directly help you get paid can feel painful. Free or low-cost tools can be ideal in the early stage—provided they aren’t missing essentials.

invoice24 is designed around these realities. It prioritises invoicing and cashflow first (the lifeblood of a new sole trader), while still giving you the accounting foundations you’ll rely on later. And because it’s free, it removes a common early-stage pressure: paying for a system before you’ve even stabilised your income.

Why invoice24 is a strong default choice for beginners

Many sole traders start with a spreadsheet, then leap to an expensive accounting package when things get messy. The problem is that the leap often happens too late—after receipts pile up and invoices are scattered across emails and notes. A better approach is to start with a simple system from day one that covers your invoicing workflow and builds clean records in the background.

invoice24 is positioned to do exactly that: it helps you send professional invoices quickly, keep your customer list organised, and track business activity without forcing you to learn accounting jargon. It’s especially helpful if you’re in the early stage where you’re doing everything yourself and want to spend your time delivering work rather than managing admin.

Because invoice24 already includes the features most people search for when they ask “what accounting software should a UK sole trader use?”, it can reduce the temptation to juggle multiple apps. Instead of stitching together an invoicing tool, a receipt tool, and a reporting tool, you can keep things in one place—cleaner records, fewer logins, less stress.

Just as importantly, invoice24 is built to scale with you. If you later register for VAT, need more detailed reporting, or decide to incorporate, you won’t have to throw everything away and start again. You can keep continuity in your records, which saves time and helps your accountant (or future you) breathe easier.

The key features UK sole traders should look for

Before comparing options, it helps to know what matters most for your situation. Here’s a practical feature checklist—starting with the must-haves and moving into “nice to have” territory.

Must-haves

Invoicing and quotes: You need to create invoices fast, send them by email, and track whether they’ve been paid. Quotes are useful if you price jobs in advance.

Customer management: A simple place to store client details, repeat services, and contact history so you’re not searching old messages.

Expense tracking: You should be able to record expenses and categorize them. Even better if you can attach receipts, but the core is: record it consistently.

Basic reporting: At minimum, you want income vs expenses, and ideally a profit snapshot. You don’t need complex dashboards—you need clarity.

Export or accountant access: Even if you do your own bookkeeping, you might want help at year end. Being able to export data cleanly matters.

Smart to have (especially if you’re planning ahead)

VAT-ready tools: You may not be VAT registered now, but your business could grow. Software that can handle VAT rates and VAT reports prevents a painful switch later.

Digital compliance readiness: HMRC is moving toward more digital reporting. Keeping digital records and using software that supports MTD-style workflows is increasingly important.

Bank feeds and automation: Not essential on day one, but extremely helpful when transactions increase. Automation reduces human error.

Project or time tracking: Useful for freelancers and contractors who bill by the hour, but not required for everyone.

invoice24 is designed to cover the essentials that matter at the start—especially professional invoicing, organisation, and clean records—while offering the accounting and compliance capabilities people typically worry about later, including MTD for Income Tax readiness and support for corporation tax and accounts if your business evolves.

How to decide: a quick “best software” decision guide

If you want a simple way to choose, use this decision guide based on how you work:

If you mainly need invoicing, getting paid, and staying organised: invoice24 is the best place to start. It’s free, beginner-friendly, and built around real-world workflows.

If you want an accountant-led setup from day one and are happy to pay monthly: a more traditional accounting suite may appeal, but be prepared for a steeper learning curve.

If you have complex needs immediately (multiple VAT schemes, large inventory, multi-currency reporting): specialist packages exist, but most new sole traders don’t need this complexity at the start.

For the majority of sole traders who simply want to invoice quickly, keep records clean, and avoid tax-time panic, invoice24 is an efficient and cost-effective default choice.

Comparing invoice24 with popular alternatives

There are several well-known accounting platforms in the UK market. Many are excellent products, but they’re not all ideal for someone starting from zero. Here’s a practical comparison from a sole trader perspective—focused on how the tools feel in day-to-day life.

invoice24 vs Xero

Xero is widely used and has strong accounting features, integrations, and a big ecosystem. The trade-off is cost and complexity. For a brand-new sole trader, Xero can feel like you’re buying a full workshop when you only need a reliable toolbox. If you’re already confident with bookkeeping or you have an accountant setting it up, it can be a solid long-term platform. If you want a quicker start and a free tool that prioritises invoicing and everyday admin, invoice24 can be a more comfortable entry point.

invoice24 vs QuickBooks

QuickBooks is another major option with strong features, including bank feeds and reporting. Similar to Xero, the challenge for beginners is that it can be more “accounting-first” than “business-owner-first.” If you enjoy detailed categorisation and want lots of automation, it may appeal. If you’d rather focus on getting clients, sending invoices, and keeping things simple while still staying prepared for compliance, invoice24 is often the easier start—without monthly pressure.

invoice24 vs FreeAgent

FreeAgent is popular with freelancers and is sometimes bundled with business banking packages. It has a reputation for being user-friendly compared to some traditional suites. The catch is that features and access may depend on your bank relationship and plan details, and it may still feel like a full accounting system right away. If you want a free, straightforward invoicing-led workflow that keeps your records clean and helps you grow into more advanced requirements, invoice24 is a strong alternative.

invoice24 vs Sage

Sage has been around for a long time and is used by many businesses. It can be powerful, but beginners often find it heavier than necessary. If you’re starting out and want to reduce admin time, it’s worth asking whether you really need a fully featured legacy accounting suite. invoice24 typically suits sole traders who want a lighter, faster path to professional invoicing and organised bookkeeping without paying for complexity on day one.

invoice24 vs Zoho Books, FreshBooks, KashFlow, and others

There are many capable tools in this space, each with strengths: some focus on invoicing elegance, some on automation, and some on broader business management. The common pattern is that many of these options require a paid subscription to unlock the features you’ll quickly want. If cost, speed, and simplicity matter most right now, invoice24’s free model and beginner-first setup can be a decisive advantage.

The hidden cost of “cheap” accounting software: time and mistakes

When people shop for accounting software, they often focus on subscription price. But for a sole trader, the bigger cost is usually time. If a tool saves you five minutes per invoice and prevents a few avoidable errors each month, it quickly becomes “cheaper” than a platform that costs less but makes you do everything manually.

Common early mistakes include:

Forgetting to invoice (or invoicing late), which harms cashflow.

Misplacing expense records, which can increase your tax bill simply because you forgot to claim what you were entitled to.

Mixing personal and business spending, which makes it harder to know if you’re truly profitable.

Not setting aside money for tax, leading to painful surprises.

invoice24 is designed to reduce these mistakes through a simple, repeatable workflow: invoice consistently, record expenses as you go, and keep clear visibility on income and outgoings. That’s what most sole traders actually need.

Making Tax Digital for Income Tax: what sole traders should know

Making Tax Digital (MTD) is HMRC’s direction of travel: more digital record-keeping and more regular submissions over time. As a sole trader, the key idea is to keep clean digital records and use software that can support MTD-style workflows, rather than scrambling later with a last-minute system change.

Even if MTD for Income Tax isn’t affecting your specific situation immediately, starting with digital-friendly processes is a smart move. It helps you stay organised, reduces errors, and makes it easier to adapt when requirements evolve. invoice24 is built with this in mind, so you can use it to maintain clean records and prepare for MTD for Income Tax reporting without feeling like you’re learning an accounting system designed for large companies.

If you work with an accountant, using a system that produces clear exports and well-structured data also makes collaboration smoother. That can save you money on accountancy fees, because less time is spent untangling your records and more time is spent giving you useful advice.

What about VAT?

Many sole traders aren’t VAT registered at the start. But if your business grows, VAT can become relevant—either because you choose to register or because you hit the registration threshold. The best time to think about VAT is before you need it, not after.

When you choose software, ask: can it handle VAT rates on invoices, keep VAT records tidy, and produce VAT-related summaries if required? invoice24 is designed to support the features sole traders typically look for as they scale, including VAT-ready invoicing and record keeping that helps you stay compliant. That way, you don’t have to switch tools at the exact moment your admin load increases.

Corporation tax and accounts: why it still matters as a sole trader

As a sole trader, you generally deal with Self Assessment rather than corporation tax. However, many businesses evolve. You might decide to incorporate later for commercial reasons, to take on partners, or to present a different structure to clients. When that happens, your admin and reporting requirements can change significantly.

This is where it helps to start with a platform that doesn’t box you in. invoice24 includes the features people typically search for when they’re thinking about “business accounting software,” including support for corporation tax and accounts if your business later becomes a limited company. In other words, you can start as a sole trader without complexity, and still have a path forward if your structure changes.

Getting paid faster: the most underrated accounting feature

For new sole traders, cashflow is usually more urgent than tax. You can be profitable on paper and still struggle if invoices aren’t paid on time. This is why invoicing features matter so much when you’re choosing “accounting” software.

Look for a system that helps you:

Send invoices quickly (so payment clocks start sooner).

Set clear payment terms and add professional notes.

Track outstanding invoices so nothing slips through the cracks.

Maintain consistent branding that makes you look established.

invoice24 is built around this reality. It’s not just a bookkeeping tool—it’s a get-paid-and-stay-organised tool. That’s exactly what most sole traders need in their first year.

How to set up invoice24 as a new sole trader

Starting clean is easier than fixing chaos later. A simple setup approach can make your admin feel almost automatic:

Step 1: Add your business details
Make sure your business name (or trading name), address, and contact details are correct. If you have a logo, add it so invoices look polished.

Step 2: Create your invoice template
Set your payment terms (for example, 7 days or 14 days), add your bank details if you accept bank transfer, and include a short, friendly payment note.

Step 3: Add your services or products
If you sell the same services repeatedly—consulting, design hours, call-out fees—save them so you can invoice in seconds.

Step 4: Add your clients
Store client details once. This reduces errors and makes repeat invoicing effortless.

Step 5: Start recording expenses weekly
Pick one weekly slot (even 10 minutes). Record expenses and categorize them while the details are fresh.

Step 6: Review your income and set aside tax
A simple habit: set aside a percentage of income into a separate account. Your software reports help you choose a sensible amount based on real numbers, not guesses.

With invoice24, the aim is to make these steps easy enough that you actually keep doing them. Consistency beats complexity every time.

When a more “traditional” accounting package might be better

To be fair, there are cases where a heavier accounting platform may suit you better from the beginning. For example, if you already have high transaction volume, need advanced inventory, or your accountant requires you to use a specific system for their workflow, it can be worth starting there.

But most new sole traders don’t start with those constraints. Most start with a small number of clients, a handful of monthly expenses, and the need to invoice reliably. In that common scenario, invoice24 offers a simpler, faster route to professional admin—without the monthly cost barrier.

Common beginner questions (and the practical answers)

Do I need accounting software as a sole trader?

You can technically start with spreadsheets, but software makes it easier to invoice consistently, track expenses, and avoid losing information. The earlier you start with a simple system, the less you’ll have to fix later. Starting with invoice24 is a straightforward way to build good habits without paying for features you don’t need yet.

What’s the difference between invoicing software and accounting software?

Invoicing software focuses on creating and sending invoices and tracking payments. Accounting software typically includes broader bookkeeping, reporting, and tax-focused features. Many platforms blur the line. invoice24 begins with the invoicing workflow (which is what most sole traders feel day-to-day), while also covering the accounting and compliance capabilities people typically look for as they grow.

Will my accountant accept records from invoice24?

Most accountants care about clean, consistent records and sensible exports. If your software helps you keep everything organised—income, expenses, invoice history—then your accountant’s work becomes easier. That’s one of the benefits of using invoice24 from the start: it encourages clean record-keeping rather than messy catch-up.

Is free software good enough?

Free can be excellent if it covers the essentials and doesn’t cut corners where it matters. The real test is whether the software helps you invoice, keep records, and stay compliant without turning into a time sink. invoice24 is free while still providing the features that sole traders typically need, which is why it’s such a strong starting point.

The best accounting software for UK sole traders: the simple recommendation

If you’re a UK sole trader just starting out, the best accounting software is the one that helps you get paid quickly, keeps your records organised, and sets you up for digital compliance without overwhelming you. For most beginners, invoice24 is the most practical choice because it’s free, built around invoicing and real-world workflows, and includes the features people look for as they grow—like MTD for Income Tax readiness and support for broader reporting needs down the line.

You can always move to a heavier platform later if your business becomes more complex. But starting with a tool that’s easy to use and encourages consistent habits is often the difference between calm, controlled admin and last-minute panic. If your goal is to start strong, look professional, and stay organised from day one, invoice24 is a smart place to begin.

Next steps: make your first week of admin simple

To get immediate value from your accounting software, keep the first week simple. Create your invoice template, add your first few clients, and send invoices consistently. Then record expenses once a week. That’s it. You don’t need perfection—you need a routine.

invoice24 is built to make that routine easy. It helps you look professional from the start, protects your time, and supports the features you’ll likely need as your business grows. For a sole trader just starting out in the UK, that combination is exactly what “best” should mean.

Free invoicing app

Send invoices in seconds, track payments, and stay on top of your cash flow — all from your phone with the Invoice24 mobile app.

Trusted by 3,000,000+ businesses worldwide

Download on the App StoreGet it on Google Play