AccountsOS vs Crunch: Which UK Accounting Solution is Right for You in 2025?

AccountsOS costs £19/month and provides AI-powered instant answers 24/7, whilst Crunch starts at £90/month for limited companies and offers a hybrid model combining accounting software with human accountant support. Your choice depends on whether you value immediate self-service AI assistance or prefer the reassurance of having dedicated human accountants handling your finances.

Both solutions are fully MTD-compliant and serve UK limited companies, but they take fundamentally different approaches. Crunch has built its reputation as the UK's first online accountancy firm, combining software with unlimited accountant access. AccountsOS represents the next generation of AI-native accounting, designed for founders who want instant answers without waiting for human response times.

This guide breaks down everything you need to know to make the right decision for your business.

Quick Comparison: AccountsOS vs Crunch

Understanding the Two Models

Crunch: Software + Human Accountants

Crunch pioneered the online accountancy model in the UK. When you sign up, you get:

• Accounting software for invoicing, expense tracking, and bank reconciliation
• Unlimited access to qualified accountants via phone, email, and messaging
• Dedicated client manager on higher tiers who learns your business
• Year-end filing handled by their team (accounts, Corporation Tax, VAT returns)

The appeal is clear: you get professional accountants who handle everything, and you can ask them questions whenever you need. For many business owners, this peace of mind is worth the premium price.

However, you're paying for human time. That means:

• Waiting for responses during busy periods (tax deadlines, year-end)
• Office hours availability (typically 9am-5:30pm weekdays)
• Annual price increases as staff costs rise

AccountsOS: AI-Native Accounting

AccountsOS takes a fundamentally different approach. Instead of paying for human accountants, you get:

• AI assistant trained on UK tax law, HMRC requirements, and accounting best practices
• Instant answers to questions like "How much did I spend on software last quarter?" or "What's my Corporation Tax liability?"
• Voice commands for hands-free accounting while multitasking
• Proactive alerts about deadlines, tax-saving opportunities, and compliance issues
• 24/7 availability because AI never sleeps

The trade-off: you're handling more yourself, albeit with intelligent AI guidance. For founders comfortable with technology who want control over their finances, this self-service model offers significant cost savings and faster responses.

Crunch Pricing Breakdown (January 2025)

Crunch offers tiered pricing based on business type and service level:

Sole Trader Pro

• £27/month (+VAT) or £21.60/month billed annually
• Includes Self Assessment filing (worth £200+VAT)
• HMRC registration, VAT filing, unlimited support

Limited Company Pro

• £90/month (+VAT) or £72/month billed annually
• Core compliance tools and unlimited accountant support
• VAT filing, bank syncing, real-time tax insights
• Self Assessment NOT included

Limited Company Premium

• £137/month (+VAT) or £109.60/month billed annually
• Everything in Pro, plus Self Assessment included
• Proactive tax savings advice
• Dedicated Crunch expert assigned to your account

Limited Company Premium Plus

• From £175/month (+VAT)
• For complex businesses or e-commerce
• Dedicated certified accountant
• Dedicated bookkeeping expert
• E-commerce platform syncing

Common Add-ons

• Director payroll: £18+VAT/month
• Employee payroll: From £18+VAT/month (scales with headcount)
• IR35 solution: £6+VAT/month
• Company registration: £50 one-time

The Hidden Cost: Annual Increases

One frequently-cited concern in Crunch reviews is annual price increases. Some customers report their monthly fees increasing from £64/month in 2020 to over £100/month by 2024. Factor potential increases into your long-term budget.

AccountsOS Pricing

AccountsOS keeps it simple:

• £19/month for everything
• No tiers, no add-ons, no surprises
• 14-day free trial to test before committing
• Annual savings: £1,068+ compared to Crunch Limited Company Pro

What's included:

• AI accounting assistant (chat and voice)
• Receipt scanning with AI categorisation
• Bank statement import (6 UK bank formats supported)
• VAT calculation and MTD-ready reporting
• Corporation Tax estimation
• P&L and Balance Sheet generation
• Deadline tracking and reminders
• Document storage (6+ years HMRC compliant)

Feature-by-Feature Comparison

Bank Reconciliation

Crunch: Connects to UK banks via Open Banking. Transactions flow in automatically, and you categorise them in the software. Your accountant reviews and corrects during year-end.

AccountsOS: Bank statement import via CSV (Barclays, Revolut, Starling, Monzo, HSBC, Lloyds auto-detected). AI suggests categories with confidence scores. You approve or adjust. Future Open Banking integration planned.

Verdict: Crunch has a slight edge with direct bank feeds, though AccountsOS's AI categorisation reduces manual work.

Receipt Management

Crunch: Upload receipts to attach to transactions. Basic storage and retrieval.

AccountsOS: AI-powered receipt scanning extracts merchant, amount, date, and VAT automatically. Intelligent matching to bank transactions. Ask questions like "Do I have receipts for all my November expenses?"

Verdict: AccountsOS significantly better for automated receipt processing.

Tax Filing

Crunch: Your accountant handles Corporation Tax, annual accounts, and VAT returns. On Premium tier, Self Assessment is included. Everything filed on your behalf.

AccountsOS: Provides Corporation Tax estimates and VAT calculations. You review and submit, or export to your accountant. Full MTD-compliant VAT reporting.

Verdict: Crunch handles filing completely; AccountsOS gives you the information but you submit (or use an accountant for final filing).

Questions and Support

Crunch: Message or call your accountant team. Typical response within hours (longer at busy times). Helpful for complex tax planning discussions.

AccountsOS: Ask AI anything, anytime. Instant responses to questions about your books, HMRC rules, or tax optimisation. Complex situations can be escalated to human accountants (add-on).

Verdict: Depends on your needs. Crunch for complex tax advice; AccountsOS for instant everyday answers.

MTD Compliance

Crunch: Fully HMRC-recognised for MTD VAT. Will be ITSA-compliant by April 2026.

AccountsOS: MTD-ready reporting and digital record-keeping. VAT 9-box calculation for MTD submissions.

Verdict: Both fully compliant for current MTD requirements.

Payroll

Crunch: Available as add-on (£18/month). RTI-compliant submissions to HMRC. Director payroll included on higher tiers.

AccountsOS: Not yet available (on roadmap). Currently recommended to use standalone payroll software.

Verdict: Crunch clearly better if you need integrated payroll.

Who Should Choose Crunch?

Crunch is the better choice if you:

• Want a human accountant relationship and value being able to discuss your tax situation with a qualified professional
• Have complex tax affairs such as multiple income streams, investments, or property
• Need payroll for yourself or employees and want it integrated
• Prefer hands-off accounting where someone else handles filings and deadlines
• Are willing to pay premium pricing for peace of mind
• Run a larger business (£200k+ revenue) where accountant fees represent a small percentage of turnover

Crunch Pros

• Unlimited access to qualified accountants
• Everything filed on your behalf
• Established reputation (15+ years in business)
• Good customer service ratings (4.3/5 Trustpilot)
• Integrated payroll available

Crunch Cons

• Expensive (£1,080-2,100/year for limited companies)
• Annual price increases common
• Response times vary (slower at busy periods)
• Office hours only
• Self Assessment costs extra on Pro tier
• No voice commands or AI assistant

Who Should Choose AccountsOS?

AccountsOS is the better choice if you:

• Want instant answers without waiting for email responses
• Are comfortable with technology and prefer self-service with AI guidance
• Run a smaller business where £70+/month for accountants feels excessive
• Value 24/7 availability for checking your finances outside office hours
• Like voice interaction for hands-free accounting while driving or working
• Want significant cost savings (£800-1,500/year less than Crunch)

AccountsOS Pros

• Dramatically cheaper (£228/year vs £1,080+)
• Instant AI responses, 24/7
• Voice commands for hands-free use
• AI receipt scanning and categorisation
• Modern, intuitive interface
• No annual price increases planned

AccountsOS Cons

• No human accountant included (optional add-on)
• You handle final filing (or use an accountant)
• Newer platform (less track record)
• No integrated payroll yet
• Bank feeds via CSV import rather than direct connection

The Cost Calculation

Let's compare annual costs for a typical UK limited company director:

Crunch Limited Company Premium

• Monthly fee: £137+VAT = £164.40
• Annual cost: £1,972.80
• Includes: Accountant support, Self Assessment, tax advice

AccountsOS

• Monthly fee: £19
• Annual cost: £228
• Add occasional accountant consultation: ~£150/year
• Total: ~£378/year

Annual savings with AccountsOS: approximately £1,595

Over 5 years, that's nearly £8,000 saved. For a solo founder or small business, that's a meaningful sum that could fund marketing, equipment, or simply stay in your pocket.

What Crunch Customers Say

Based on Trustpilot reviews, Crunch customers appreciate:

• Helpful, knowledgeable accountants who explain things clearly
• Having named contacts rather than random support agents
• Taking the stress out of tax compliance
• Good software that's reasonably intuitive

Common complaints include:

• Price increases year-on-year
• Occasional missed deadlines during busy periods
• Some features feeling basic compared to standalone software
• Difficulty reaching support during peak times

Making Your Decision

Choose Crunch if you're willing to pay premium pricing for the comfort of human accountants handling everything. It's particularly suited to contractors and freelancers who've gone limited and want to focus on their work, not their accounts.

Choose AccountsOS if you want modern AI-powered accounting at a fraction of the cost. It's ideal for tech-comfortable founders who want instant answers, 24/7 access, and significant cost savings.

Many businesses start with Crunch for the hand-holding, then switch to AccountsOS once they understand their accounts better and want more control (and lower costs).

Can You Switch Later?

Yes. Both platforms allow data export. Crunch supports seamless data imports from other platforms, and AccountsOS can import transaction history and documents from any source. Switching typically takes 1-2 hours of initial setup.

Frequently Asked Questions

Is Crunch worth the money for a UK limited company?

Crunch provides genuine value if you want unlimited accountant access and hands-off filing. At £90-175/month, you're paying for professional oversight and peace of mind. For businesses with complex tax situations or those who don't want to learn accounting software, it can be worth the premium. However, if you're comfortable with technology and have straightforward accounts, you may find the same compliance achieved for significantly less with AI-powered alternatives.

How does Crunch compare to FreeAgent?

Crunch and FreeAgent serve different needs. FreeAgent is pure accounting software (£19-31/month) without human accountant support. Crunch is accounting software plus unlimited accountant access. If you just want software, FreeAgent is cheaper. If you want accountants included, Crunch offers better value than FreeAgent plus a separate accountant. AccountsOS bridges the gap with AI-powered guidance at software-only pricing.

Can I do my own company accounts with AccountsOS?

AccountsOS provides all the tools to manage your day-to-day bookkeeping, track expenses, generate financial reports, and calculate taxes. For annual filing with Companies House and HMRC, you can either learn to file yourself (guided by the AI) or use the generated reports with a filing-only accountant service, which typically costs £200-400/year for straightforward accounts.

Does Crunch handle IR35 assessments?

Crunch offers an IR35 solution as an add-on for £6/month. This includes determination support and documentation to demonstrate your employment status. AccountsOS provides AI guidance on IR35 factors and helps you document your working arrangements, but doesn't offer formal determination services.

What happens if I have a complex tax question?

With Crunch, you message your accountant and typically receive a response within a few hours (longer during busy periods). With AccountsOS, the AI handles most questions instantly. For genuinely complex situations requiring professional advice (such as significant tax planning, business restructuring, or HMRC investigations), AccountsOS recommends connecting with a specialist accountant.

Is Crunch MTD compliant?

Yes. Crunch is fully HMRC-recognised for Making Tax Digital. Their software handles MTD VAT submissions directly to HMRC, and they'll be fully ITSA-compliant by April 2026 when the new rules take effect. AccountsOS is also MTD-ready, generating compliant VAT reports for submission.

Can I switch from Crunch to AccountsOS?

Absolutely. Export your transaction history from Crunch (CSV format), and import it into AccountsOS. The AI will help categorise historical transactions and you'll be operational within hours. Many users complete the switch over a weekend.

Which is better for contractors?

For contractors, both work well. Crunch has strong contractor heritage and understands IR35, agency contracts, and umbrella vs limited company decisions. AccountsOS is designed for limited company directors and includes contractor-relevant features. Crunch's Sole Trader Pro (£27/month) is good value if you're not limited. For limited company contractors, AccountsOS offers substantial savings with adequate functionality.

Conclusion

Crunch and AccountsOS represent two philosophies of modern accounting: human expertise versus AI assistance.

Crunch is the established choice for businesses wanting professional accountants to handle everything. You pay a premium, but you get qualified humans reviewing your accounts, filing your returns, and answering your questions. For complex situations or those who simply don't want to think about accounting, it's money well spent.

AccountsOS is the cost-effective choice for tech-comfortable founders who want instant answers, 24/7 access, and control over their finances. You handle more yourself, but AI guidance makes it manageable, and you save over £1,000 per year.

There's no universally "better" option. It depends on your budget, comfort with technology, complexity of your affairs, and how much you value human interaction versus instant AI responses.

The good news: both solutions keep you HMRC-compliant, both handle the essentials of UK limited company accounting, and both let you focus on running your business rather than drowning in paperwork.

Ready to try the AI-native approach? Start your free 14-day trial of AccountsOS and experience instant answers to your accounting questions.