Cut complexity from Corporation Tax
Is preparing and reviewing your tax returns taking too long? Silverfin’s cloud software simplifies Corporation Tax management in the UK, saving your firm valuable time. Developed by accountants for accountants, Silverfin’s Corporation Tax product integrates tax preparation and calculations directly into the platform you already trust for working papers, accounts production, and data insights.
“Before Silverfin, we were using two different systems—one for work papers and statutory accounts production, and another for corporation tax. This led to a lot of inefficiency. Information had to be manually mapped each time, and after producing accounts and work papers, we had to transfer all the data into our tax software, going back and forth with adjustments and tax journals. It was a lot of wasted time and effort. Since switching to Silverfin, we’ve realised how much more we can accomplish with that time. It’s significantly improved the client experience and made us more productive as we’ve grown the business.”
Corporation Tax in the UK, powered by Silvefin
Create capacity with automation
All your data is updated automatically and accessible in the cloud, flowing directly into your Corporation Tax computations as you prepare working papers and account. With the latest data always at hand, there’s no wasted work or version control problems.
Reduce risk with live data
Eliminate errors and repetitive manual tasks with live client data and automation. Our Corporation Tax templates are easy to navigate, with simple hyperlinks allowing users to quickly move between schedules.
Improve consistency and collaboration
Speed up preparation and reviews by enabling everyone to follow the same best-practice tax workflows, no matter where they are. Intuitive schedules, guided navigation and automated reconciliations streamline processes and take productivity to a whole new level. Advanced built-in communication tools keep all the information you need in one place.
Automate iXBRL tagging
Silverfin’s iXBRL tagging tool accurately embeds your financial data with machine-readable tags, ensuring you returns adhere to the latest regulatory standards.
Validate and file your returns with ease
Consistently generate high-quality, fully compliant CT600 returns. Build-in data validation ensures your team catches any errors before filing. When ready, submit you iXBRL-tagged return to HMRC with a single click.

Why Silverfin?
Our software supports over 400,000 client files each year, including those from 30 of the UK’s top 100 firms, ensuring both consistency and efficiency.
Reliable Results
Access accurate, up-to-date client data that flows into best practice workpapers, supported by AI for reliable mapping.
Time-saving automation
Save up to 50% of your time on year-end prep and Corporation Tax submissions with automation, AI data checks, and built in communication tools.
Effortless implementation
With per-client file pricing, an intuitive interface, and fast implementation, Silverfin makes it easy to see the benefits of switching.

About Silverfin:
Silverfin is a cloud platform with live client data, connected workpapers and AI that’s built by accountants for accountants. Silverfin dramatically improves the efficiency, accuracy and profitability of traditional post accounting work. With centralised data, standardised and automated workflows, this work takes hours rather than days.
Built by accountants for accountants, Silverfin supports over 400,000 client files a year for customers including 30 of the top 100 accounting firms in the UK.
Creating consistency and capacity, Silverfin helps firms thrive with improved quality, insights and the benefits of AI trained on accounting data. Our cloud Data Hub enables access to real-time data and eliminates errors so that preparing and submitting end-of-year accounts and corporation tax returns often takes 50% less time.
About Silverfin Assistant: Silverfin Assistant continuously analyses client files to find unusual balances, missing transactions and outliers. Flagging these and suggesting fixes, saves hours of manual checking, improves accuracy and improves client service.