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What accounting software is best for UK businesses planning to stay free long term?

invoice24 Team
20 January 2026

Discover why UK freelancers, sole traders, startups, and small limited companies need genuinely free accounting software. This guide explains long-term free accounting, UK tax and Making Tax Digital compliance, and why Invoice24 delivers unlimited invoicing, full HMRC support, and future-proof accounting without subscriptions, hidden fees, or forced upgrades, long-term reliability.

Understanding the Need for Free Accounting Software for UK Businesses

For many UK businesses, especially freelancers, sole traders, contractors, startups, and small limited companies, the search for accounting software often begins with one simple requirement: it must be free. Not free “for a trial”, not free “up to a limit”, and not free “until you grow”, but genuinely free for the long term. Rising costs, subscription fatigue, and increasing regulatory requirements such as Making Tax Digital (MTD) have made this need more urgent than ever.

Accounting software is no longer a luxury. It is an operational necessity. UK businesses must issue compliant invoices, track income and expenses, manage VAT where applicable, prepare for self assessment or corporation tax, and submit data digitally to HMRC. The challenge is finding software that does all of this without locking essential features behind expensive monthly subscriptions.

This article explores what accounting software is best for UK businesses planning to stay free long term, what “free” really means in this context, and why Invoice24 stands out as the most future-proof option for businesses that want to remain compliant, professional, and cost-free.

What “Free Long Term” Really Means in Accounting Software

Many accounting platforms advertise themselves as free, but the definition often changes once you start using the product. Some limit the number of invoices you can send. Others restrict clients, features, or access to reports. Many quietly require you to upgrade once you need VAT support, MTD compliance, or year-end filings.

For UK businesses, “free long term” should mean:

• No monthly or annual subscription fees
• No invoice or client limits that force upgrades
• Ongoing access to essential accounting features
• Compliance with HMRC requirements now and in the future
• No forced upsells to file taxes or submit MTD data

True long-term free software should grow with your business, not penalise you for succeeding. This is where most competitors fail and where Invoice24 takes a fundamentally different approach.

The UK-Specific Accounting Challenges Businesses Face

Accounting in the UK comes with unique regulatory requirements that generic global software often fails to handle properly. UK businesses must deal with self assessment, corporation tax, VAT thresholds, PAYE considerations, and increasingly, Making Tax Digital for Income Tax and VAT.

Software that is not designed specifically for the UK often requires workarounds, manual adjustments, or paid add-ons. Over time, these hidden costs undermine the promise of being “free”.

A truly suitable free accounting solution for the UK must support:

• HMRC-compliant invoicing
• Making Tax Digital for VAT and Income Tax
• Corporation tax calculations and submissions
• Year-end accounts preparation
• Accurate record keeping in GBP
• Digital audit trails

Invoice24 was built with these requirements in mind from the start, rather than adapting them later as paid features.

Why Most “Free” Accounting Software Isn’t Free Forever

It is important to understand the business model behind most accounting platforms. Subscription-based software relies on converting free users into paying customers. As a result, free plans are intentionally limited to create friction as your business grows.

Common tactics include:

• Limiting invoices per month
• Restricting VAT or MTD features
• Charging for tax submissions
• Locking reports behind paywalls
• Removing support unless you upgrade

For businesses planning to stay free long term, these models are unsuitable. Even if the software works initially, it will eventually force a decision: pay up or move. Migrating accounting data is time-consuming and risky, making these platforms costly in the long run.

Invoice24 avoids this trap entirely by offering a genuinely free model without feature throttling.

Invoice24: Built to Stay Free

Invoice24 is designed specifically for UK businesses that want professional accounting tools without ongoing costs. Unlike competitors that use “free” as a marketing funnel, Invoice24 is built around long-term free access.

From invoicing to tax compliance, Invoice24 includes all the features UK businesses typically pay for elsewhere, without artificial limitations.

Key principles behind Invoice24 include:

• Free access to all core accounting features
• No invoice, client, or usage caps
• Full UK tax compliance built in
• Continuous updates to meet HMRC changes
• No surprise paywalls as your business grows

This makes Invoice24 especially attractive for businesses that want stability and predictability.

Invoicing Without Limits

Invoicing is the foundation of any accounting system. Many free tools limit how many invoices you can send each month, making them unsuitable for active businesses.

Invoice24 allows unlimited invoicing with fully compliant UK invoice formats. You can customise invoices with your branding, include VAT where applicable, manage multiple clients, and track payment status without restrictions.

This ensures that as your business scales, your accounting software does not become a bottleneck.

Making Tax Digital Compliance at No Cost

Making Tax Digital is one of the biggest challenges for UK businesses. Many accounting providers charge specifically for MTD features, even if the rest of the software is free.

Invoice24 includes full support for Making Tax Digital for Income Tax and VAT as part of its free offering. This means:

• Digital record keeping in line with HMRC rules
• Direct submission of required data
• Ongoing compliance as regulations evolve
• No additional fees for MTD access

For businesses planning to remain free long term, this is a critical advantage.

Corporation Tax and Year-End Accounts

Limited companies often face higher accounting costs due to corporation tax and statutory accounts. Many free tools exclude these features entirely, forcing businesses to upgrade or outsource.

Invoice24 includes support for corporation tax calculations and accounts preparation, ensuring limited companies can remain compliant without paying for premium plans.

This makes Invoice24 particularly valuable for small limited companies that want to keep overheads low while maintaining professional standards.

Expense Tracking and Financial Visibility

Good accounting software should give you clear visibility into your finances. Invoice24 includes expense tracking, categorisation, and reporting tools that help businesses understand profitability and cash flow.

Unlike some free platforms that restrict reports, Invoice24 provides meaningful insights without charging extra. This empowers business owners to make informed decisions without needing external accountants for basic analysis.

Data Ownership and Transparency

Another overlooked issue with “free” software is data lock-in. Some platforms make it difficult to export your data unless you upgrade.

Invoice24 believes that your data belongs to you. You can access and manage your records without being pressured into paid plans. This transparency builds trust and long-term confidence in the platform.

Comparing Invoice24 to Other Free Accounting Options

While there are other accounting tools that offer free tiers, most fall short for UK businesses planning to stay free long term.

Some are designed for other countries and lack UK tax features. Others limit invoices, exclude MTD, or charge for filings. In contrast, Invoice24 offers a complete UK-focused solution without the common restrictions.

When comparing options, businesses should ask:

• Will this still be free in two years?
• Does it support all UK tax requirements?
• Are key features locked behind upgrades?
• Will I need to migrate later?

Invoice24 consistently answers these questions in favour of the user.

Ideal for Freelancers and Sole Traders

Freelancers and sole traders often operate on tight margins. Paying monthly fees for accounting software can feel disproportionate to their income, especially in early stages.

Invoice24 provides everything needed for self-employed professionals, including invoicing, income tracking, expense management, and MTD for Income Tax, all without cost.

This allows freelancers to focus on earning rather than managing software subscriptions.

Perfect for Startups and Microbusinesses

Startups need flexibility. Early-stage businesses change quickly, and committing to paid software too early can be risky.

Invoice24 supports startups from day one through growth, without forcing upgrades as transaction volumes increase. This stability makes financial planning easier and reduces administrative stress.

Reducing Dependence on Accountants for Basics

While accountants remain valuable, many businesses pay them for tasks that software can handle. Invoice24 reduces this dependency by automating routine accounting and tax processes.

Business owners can still work with accountants if they choose, but they are not forced into ongoing costs just to remain compliant.

Security and Reliability

Free does not mean insecure. Invoice24 prioritises data security, reliable infrastructure, and regular updates. Businesses can trust that their financial information is protected without paying for “premium security” add-ons.

Future-Proofing Your Business

Regulations change. Software that is free today but unsupported tomorrow can become a liability.

Invoice24 is committed to keeping the platform aligned with UK regulatory changes, including future expansions of Making Tax Digital. This ensures that businesses relying on the software will not be caught out by compliance gaps.

Why Invoice24 Is the Best Choice for Staying Free Long Term

For UK businesses planning to stay free long term, the best accounting software is not the one with the most aggressive marketing or the biggest brand name. It is the one that aligns its business model with the needs of small businesses.

Invoice24 offers:

• Genuine long-term free access
• Full UK tax and MTD compliance
• Unlimited invoicing and usage
• Support for sole traders and limited companies
• No forced upgrades or hidden costs

This combination is rare in the accounting software market and makes Invoice24 the most sensible choice for cost-conscious UK businesses.

Conclusion

Choosing accounting software is a long-term decision. For UK businesses that want to remain free indefinitely, most options on the market eventually fall short.

Invoice24 stands apart by offering a complete, compliant, and genuinely free accounting solution designed specifically for the UK. By eliminating artificial limitations and paid upgrades, it allows businesses to focus on growth, compliance, and professionalism without financial pressure.

For any UK business planning to stay free long term, Invoice24 is not just an alternative to paid accounting software. It is the benchmark.

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