Self Assessment Software vs. Accountant Cost: Finding the Best Value for Your Tax Return

Charlotte Baroukh

Charlotte Baroukh

Tax Expert @ Pie

4 min read

Updated: 14 May 2026

4 min read

Updated: 14 May 2026

Introduction

Choosing between self assessment software and hiring an accountant can save you hundreds of pounds each year. Many UK taxpayers face this dilemma every January, weighing up convenience against cost.

 

Software costs as little as £20, while accountants typically charge £300-£800. But price isn't everything when it comes to your tax return.

 

The right choice depends on your specific circumstances and confidence level. Your tax complexity, available time, and comfort with numbers all play crucial roles.

 

In this article, we'll cover the true costs of self assessment software vs accountant services. You'll discover which option offers the best value for your situation.

What's the Real Difference Between Self Assessment Software vs Accountant Cost?

Self assessment software typically costs £20-£100 per year. This includes access to all forms and automatic calculations for most tax situations.

 

Accountants charge £300-£800 for straightforward returns. However, they handle everything from start to finish, including correspondence with HMRC.

 

Software requires your time investment, usually 2-4 hours. You'll need to gather documents and input data yourself, following the platform's guidance.

 

Accountants save you time but cost significantly more. They also provide professional indemnity insurance, protecting you if mistakes occur.

 

Complex situations often justify the higher accountant fees. Simple employment income, however, usually works perfectly well with software solutions.

What's the Real Difference Between Self Assessment Software vs Accountant Cost?

How Much Does Self Assessment Software Actually Cost?

Basic packages start from £15-£30 for simple returns. These cover standard employment income, basic expenses, and common tax reliefs.

 

Premium software ranges from £50-£100 with extra features. You'll get advanced calculations, multiple income sources, and priority support included.

 

Most platforms offer free trials or money-back guarantees. This lets you test the interface before committing to a full year.

 

Additional costs may include phone support at £2-£5 per minute. Some providers bundle this into premium packages for better value.

 

Annual subscriptions often include automatic updates throughout the year. Multi-year discounts can reduce costs by 20-30% for loyal customers.

What Do Accountants Really Charge for Self Assessment?

Simple employed person returns typically cost £150-£400. This covers PAYE income, basic expenses, and standard personal allowances.

 

Self-employed individuals with basic expenses pay £300-£600. The price increases with business complexity and number of expense categories.

 

Multiple income sources push fees to £400-£800. Each additional income stream requires separate calculations and potential adjustments.

 

Property or investment income costs £500-£1,200 to process. Capital gains and dividend calculations add significant complexity to returns.

 

London-based accountants typically charge 20-30% more than regional firms. Many also charge extra for additional forms, amendments, or urgent deadlines.

What Do Accountants Really Charge for Self Assessment?

When Does Software Make More Financial Sense?

Your total income comes solely from employment with PAYE. Software handles these straightforward calculations perfectly, saving you hundreds annually.

 

You have simple rental property income from one or two properties. Most platforms include buy-to-let sections with allowable expense guidance.

 

Basic self-employment with straightforward expenses suits software well. The platforms guide you through common business deductions step by step.

 

You're comfortable following clear instructions and entering data carefully. Modern software uses plain English and helpful prompts throughout.

 

Your tax situation hasn't changed significantly from previous years. You can often import last year's data, making updates quick and easy.

 

You want to understand your tax position better. Software teaches you about allowances and reliefs as you complete your return.

When Should You Pay for an Accountant Instead?

Multiple business income streams need professional handling and expertise. Accountants understand how different sources interact for tax purposes.

 

Capital gains calculations become tricky with multiple disposals or reliefs. Professional advice ensures you claim all available exemptions correctly.

 

International income requires specialist knowledge of double taxation treaties. Accountants navigate foreign tax credits and reporting requirements expertly.

 

You're investigating complex tax reliefs and allowances. Professionals know obscure reliefs that could save you thousands.

 

HMRC has contacted you about previous returns or investigations. Having professional representation protects your interests during enquiries.

 

Time constraints make DIY impractical or stressful. If your hourly rate exceeds £100, paying an accountant often makes sense.

When Should You Pay for an Accountant Instead?

Which Option Saves You More Money Long-Term?

Software builds your tax knowledge over time. Each year, you'll complete returns faster and understand your finances better.

 

Accountants may spot valuable reliefs you'd miss alone. Their expertise often pays for itself through legitimate tax savings.

 

Software costs remain predictable year after year. You'll budget £20-£100 annually without surprise fee increases.

 

Good accountants often pay for themselves through identified savings. They also provide year-round tax planning advice, maximising efficiency.

 

Consider your hourly rate versus time spent on returns. High earners often save money by delegating to professionals.

 

Factor in peace of mind and accuracy guarantees. Both options offer protection, but accountants provide professional indemnity insurance.

 

I discovered this myself when switching from an accountant to software. After three years, I saved over £1,000 whilst gaining valuable tax knowledge.

 

Pie is the UK's first personal tax app for working individuals. It combines bookkeeping, real-time calculations, and expert advice when needed.

 

The platform stands out by offering integrated features traditionally found separately. Users get simplified processing with professional support on demand.

Conclusion

The self assessment software vs accountant cost decision ultimately depends on your specific circumstances. Simple tax affairs usually work perfectly with quality software solutions.

 

Complex situations often justify professional accountant fees. The peace of mind and potential savings can outweigh higher costs.

 

Ready to choose? Start with software if you're confident with straightforward taxes. Book an accountant consultation for intricate affairs or significant wealth.

 

Either way, acting early gives you the best outcome. You'll avoid rushed decisions and late filing penalties.

 

Visit Pie.tax to discover how our app makes self assessment simple. We combine software efficiency with expert support when you need it.

Want to get smarter about taxes?

The Tax Pible has tax tips, guides, video tutorials, and expert insights.


Stay up to date with the latest tax news and watch the UKs first tax podcast - the Piecast

Want to get smarter about taxes?

File your Self Assessment - For FREE

Manage your self-assessment in one, easy to use App

  • Save money, time and effort with Pie

  • Add multiple incomes and view your tax in ‘Real Time’

  • File directly to HMRC - for FREE

File your self assessment - for Free

The Free Self Assessment App.

logologo
Want regular updates from us?

Want regular updates from us?

Sign up for regular tax tips and news sent straight to your inbox.

Whatsapp Pie Tax