5 Best Accounting Software for UK Limited Companies (2026 Ranked)

The 5 best accounting software options for UK Limited Companies in 2026, ranked and compared.

If you run a Limited Company in the UK, HMRC does not accept excuses, and 2026 has added a new layer of urgency. The old CATO portal used for filing company tax returns was shut down on 31 March 2026, which means software-only filing is now the law for UK businesses. The days of logging into the HMRC website and typing in numbers manually are over.

Add Making Tax Digital (MTD) for VAT, RTI payroll submissions, and the pressure of running a growing business, and choosing the right accounting software stops being a nice-to-have conversation. It becomes one of the most consequential decisions you make as a company director.

I have tested the five top-rated accounting platforms available in the UK right now. I looked at how they handle UK VAT schemes, PAYE payroll integration, bank feeds, and scalability.

Whether you are a one-person contractor or running a digital agency, one of these five is the right fit. And if you are managing tax prep under time pressure, our guide on how to maximise last-minute tax prep with QuickBooks is worth reading alongside this one.

Why Accounting Software Matters More Than Ever in 2026

There are two legal requirements that dictate your software choice as a UK Limited Company director, and both have teeth.

Making Tax Digital (MTD) for VAT — since 2022, all VAT-registered businesses must keep digital records and submit VAT returns using HMRC-compatible software. You cannot file VAT manually through the HMRC website. Every option on this list is fully MTD-compliant, so you are covered whichever you choose.

RTI (Real Time Information) Payroll — as a Limited Company director, you almost certainly pay yourself a combination of salary and dividends. That salary makes you an employee of your own company, which means you must submit payroll data to HMRC on or before each payday through RTI. Not once a year, every single payday. Your accounting software needs to handle this, or you need to integrate a dedicated payroll tool.

These two requirements alone make a capable, HMRC-approved accounting platform non-negotiable. The question is simply which one fits your business size, budget, and working style.

Quick Comparison: All 5 at a Glance

*FreeAgent is available free of charge to business banking customers of NatWest, Royal Bank of Scotland, and Mettle.

Comparing the UK's top accounting platforms across price, features, and compliance requirements.

1. Xero — Best Overall for UK Limited Companies

⭐ #1 Best Overall

Xero

From £16/month (Ignite) · 30-day free trial

★★★★★ 4.9/5

Ask ten modern UK accountants what software they recommend, and nine of them will say Xero. It has effectively replaced Sage as the default choice for small and medium-sized businesses in the UK, and for good reason. The bank feed reliability, the built-in payroll module, and the integration ecosystem make it the most complete platform for Ltd companies in 2026. Xero offers a 30-day free trial with no credit card required, making it easy to test before committing.

Why It Wins

• Connects flawlessly with UK banks: Monzo, Starling, Barclays, HSBC, Revolut
• Built-in UK Payroll — handles auto-enrolment pensions (Nest, The People's Pension) and RTI submissions automatically
• Huge app ecosystem: Dext for receipts, Shopify, GoCardless for Direct Debits
• Full MTD compliance across all plans
• Can file micro-entity accounts directly to Companies House
• Best bank feed reliability of any platform tested

Watch Out For

• Multi-currency requires the Comprehensive plan (£47/mo) — steep if you bill in USD or Euros
• Payroll pricing restructured in Sept 2024 — now £1.50 per employee/mo extra on most plans
• No phone support — all support is online via tickets and chat
• Can feel feature-heavy for a very small one-person operation

Xero UK Plan Breakdown (2026)

Plan	Price/mo	Invoices	Payroll	Multi-Currency
Ignite	£16	Up to 20/mo	Add-on	✗
Grow	£28	Unlimited	Add-on (£1.50/employee/mo)	✗
Comprehensive	£47	Unlimited	Add-on (£1.50/employee/mo)	✓
Ultimate	£55	Unlimited	Add-on (£1/employee/mo)	✓

Best for: Ltd companies of any size wanting the industry-standard platform — especially those with a growing team, UK bank feeds, or a professional accountant already using Xero.

Try Xero Free for 30 Days →

2. QuickBooks Online — Best for Inventory and Complex VAT

#2 — Best for VAT & Inventory

QuickBooks Online

From £14/month · Frequent discount offers

★★★★½ 4.5/5

While Xero is the "cool kid," QuickBooks is the heavy lifter. If your Limited Company sells physical goods (e-commerce, manufacturing, wholesale) or you are on a complex VAT scheme such as the Flat Rate Scheme or VAT Margin Scheme, QuickBooks frequently handles the underlying calculations better. The reporting tools are genuinely deeper than Xero's out of the box, and QuickBooks regularly runs discounts of 50% off for the first six months — making it one of the cheapest entry points on this list. Our guide on QuickBooks features that help small businesses succeed during tax season goes deeper on exactly what those tools look like in practice.

Why It Wins

• Stronger native inventory and stock management than Xero
• Deeper, more customisable reporting out of the box
• Better handling of complex VAT schemes (Flat Rate, Margin)
• Frequent 50% off introductory discounts make it cheap to start
• Built-in payroll on paid plans
• Full MTD compliance

Watch Out For

• Interface feels more cluttered than Xero — steeper learning curve
• Charges per additional user — costs rise fast if your team grows
• App ecosystem smaller than Xero's
• Discount pricing is temporary — regular price is higher

Best for: Ltd companies selling physical products, businesses on the VAT Flat Rate Scheme or Margin Scheme, and anyone who needs more granular financial reporting from day one.

Check QuickBooks Offers →

3. FreeAgent — Best Value (Free with NatWest or Mettle)

#3 — Best Value

FreeAgent

£19/month · Free with NatWest, RBS, or Mettle business accounts

★★★★☆ 4.3/5

FreeAgent is the industry's best-kept secret. Acquired by the NatWest Group, it is given away free to business banking customers of NatWest, Royal Bank of Scotland, and Mettle. If you bank with any of these, you get a full FreeAgent licence at no cost — saving roughly £228 per year compared to the standalone subscription. It was built with UK contractors and directors in mind, and it shows. The Self Assessment tax return filing for directors is cleaner and more intuitive than anything Xero or QuickBooks offers for that specific use case.

Why It Wins

• Completely free with NatWest, RBS, or Mettle business banking
• Built specifically for UK contractors and Ltd company directors
• Handles Self Assessment for directors better than Xero
• Clean, uncluttered interface — easy for non-accountants
• Full MTD compliance for VAT
• Solid IR35 contract and payroll features for contractors

Watch Out For

• Limited scalability — feels restrictive with 10+ employees
• No large app ecosystem compared to Xero
• Lacks advanced inventory management
• Only free if you use a qualifying NatWest Group bank account

Best for: IT contractors, consultants, and one-person Ltd companies who bank with NatWest, RBS, or Mettle and want full accounting software at zero cost.

4. Sage Accounting — Best for Traditional Accountants

#4 — Trusted by Accountants

Sage Accounting

From £14/month

★★★★☆ 4.0/5

Sage is the grandfather of UK accounting software. It has been around since 1981, and you will still find it embedded in traditional accountancy firms across the country. If you work with an older-school accountant or a firm that has been managing UK company accounts for decades, there is a real chance they will ask you to use Sage. Its compliance credentials are unmatched — Sage is practically synonymous with HMRC audit trails — and its UK-based phone support is a genuine differentiator at a time when Xero and QuickBooks offer only online assistance.

Why It Wins

• Excellent HMRC VAT compliance and detailed audit trails
• UK-based telephone support — rare in this category
• Preferred by traditional and established accountancy firms
• Reliable and battle-tested for decades
• Full MTD compliance

Watch Out For

• Interface feels dated compared to Xero and QuickBooks
• Less intuitive for business owners doing their own bookkeeping
• Smaller integration ecosystem than the market leaders
• Innovation pace is slower than competitors

Best for: Ltd companies whose existing accountant or financial adviser already works with Sage, or businesses in traditional sectors where established compliance audit trails are a priority.

Try Sage →

5. FreshBooks — Best for Service-Based Solopreneurs

#5 — Best for Freelancers

FreshBooks

From £12/month

★★★★☆ 4.0/5

If your Limited Company sells time rather than products — consultants, designers, copywriters, coaches, developers — FreshBooks is a strong contender. It started as an invoicing tool and grew into a full accounting platform, and that origin shows in the quality of its client-facing features. The invoices are the most professionally designed of any platform on this list, the built-in time tracker converts hours directly into billable invoices, and the overall experience is arguably the easiest to pick up for someone who finds accounting genuinely daunting.

Why It Wins

• Best-looking, most professional invoices of any platform here
• Built-in time tracking — hours become invoices automatically
• Easiest learning curve of the five — great for non-accountants
• Client portal for viewing and paying invoices online
• Solid expense tracking and receipt capture

Watch Out For

• Weaker "pure" accounting features — limited balance sheet depth
• Payroll requires a third-party integration
• Not ideal once you hire staff or need complex reporting
• MTD compliance present but less mature than Xero or QuickBooks

Best for: Solopreneurs and one-person Ltd companies in service businesses — consultants, designers, coaches, writers — who bill by the hour and need clean, professional invoicing above all else.

All five platforms are fully HMRC-recognised for Making Tax Digital VAT submissions.

UK Legal Requirements Every Ltd Company Director Must Know

Making Tax Digital (MTD) — Non-Negotiable

Since April 2022, every VAT-registered business in the UK must keep digital records and submit VAT returns using HMRC-compatible software.

You cannot type your VAT return into the HMRC website manually. If you are not VAT-registered, MTD for Income Tax is rolling out progressively and will apply to most Ltd companies within the next two years.

Payroll and RTI Submissions

As a Ltd company director paying yourself a salary, you are technically an employee of your own company. This means you must submit payroll data to HMRC on or before every payday through the RTI system. Here is how each platform handles it:

• Xero — has a fully built-in UK payroll module on Grow, Comprehensive, and Ultimate plans. Handles auto-enrolment pensions and files RTI submissions automatically.
• QuickBooks — also has built-in payroll on paid plans, with RTI filing included.
• FreeAgent — includes payroll for the director as standard.
• Sage — strong payroll with RTI submissions on paid tiers.
• FreshBooks — requires a third-party payroll integration for RTI submissions.

Companies House Filing — Now Software-Only

The HMRC/Companies House joint CATO portal was permanently closed on 31 March 2026. All company tax returns must now be filed through compatible software. This is a significant change for directors who were still using the manual web portal. Xero and FreeAgent both offer Companies House filing features for simpler accounts.

For full statutory accounts, you will likely still need your accountant's specialist software, but your accounting software feeds the data they need. For more context on navigating UK tax compliance, the HMRC official website publishes the current MTD rules and timelines.

Which Software Should You Choose?

Frequently Asked Questions