Precision tax work without the peak-season pressure.
Terra Global Partners provides dedicated corporate tax outsourcing support for UK accounting firms. From detailed tax computations and adjustments to reliefs, R&D claims, CT600 preparation and iXBRL tagging, our team handles the agreed technical workload so your qualified staff can focus on review, tax planning and client advisory.
We’re here to support your practice
Corporate tax support for your practice
Support across corporation tax computations, tax adjustments, capital allowances, expenditure analysis, reliefs, R&D claims, CT600 preparation and iXBRL tagging.
Support with disallowable expenses, capital allowances, loss relief, group relief, associated companies and other adjustments required to arrive at the taxable profit.
Preparation support for eligible R&D tax credit claims, including computations and supporting schedules prepared for review by your qualified tax team.
Who we work with
You need additional preparation capacity that can fit into your existing tax workflow as your client base and compliance workload grow.
You need a reliable process for managing recurring and seasonal corporation tax workloads without placing additional pressure on your internal team.
The corporate tax challenges we solve
Handling technical details
Allowances, reliefs, expenditure analysis and company-specific tax adjustments require detailed work before a return is ready for review.
Managing peak-season work
Seasonal workloads can place pressure on internal teams, making additional preparation capacity valuable when deadlines start to concentrate.
Keeping up with changes
UK corporation tax rules and HMRC requirements continue to evolve, requiring tax teams to keep their processes and technical knowledge up to date.
Freeing qualified staff
When experienced tax professionals spend too much time on computational work, less time remains for planning, review and client advisory.
The Terra Global approach
We take responsibility for agreed tax preparation activities while keeping your qualified team involved in the review, decisions and sign-off points that remain with you.
Understand your requirements
01We review the client requirements, tax period, source information and agreed preparation scope before work begins.
Build the right workflow
02We establish responsibilities, information requirements, review points and the workflow your practice will use throughout the engagement.
Prepare the tax work
03Our team completes the agreed computational work, schedules and return preparation using the information and process defined with your team.
Keep review moving
04Completed work is organised for your review, with clear notes around outstanding information, assumptions and items requiring attention.
Corporate tax deliverables
The right tax outsourcing support should reduce preparation pressure without creating another layer to manage. Depending on your requirements, we can support:
Detailed corporation tax computations prepared from trial balances, statutory accounts and the agreed supporting information.
Preparation support for UK corporation tax returns, including the relevant computations and supporting schedules required within the agreed scope.
Support with capital allowance calculations and expenditure analysis to help determine the appropriate tax treatment of qualifying expenditure.
Support with loss relief, group relief, associated companies, disallowable expenses and other corporation tax adjustments.
Preparation support for eligible UK R&D tax credit claims, including computations and supporting schedules for your review.
Supporting schedules, tax calculations, iXBRL tagging and other agreed documentation prepared as part of the corporation tax workflow.
Corporate tax & partnership process
We review your tax requirements, client information, deadlines and the scope of work to be completed.
Tax requirement brief
We agree on responsibilities, information requirements, review points and the working process before preparation begins.
Defined tax workflow
We complete the agreed computations, schedules and tax return preparation using the information provided by your team.
Prepared tax work
Completed work is checked within the agreed process and organised with notes for your qualified team's review.
Review-ready tax file
We return the completed work with clear communication around outstanding information, review points and next actions.
Completed tax pack
Confidentiality & process
Tax preparation involves sensitive financial information and detailed working papers. We keep responsibilities defined and the preparation process structured around your practice.
We work with agreed financial and tax information as part of a defined preparation and review process.
Computations, schedules and supporting documentation are prepared and organised within the agreed workflow.
Your qualified team retains responsibility for review, professional judgement and sign-off while we handle agreed preparation activities.
A repeatable process helps recurring tax work move through preparation, review and delivery with greater clarity.
Smarter tax outsourcing
Our team supports the detailed preparation work behind UK corporate tax returns.
Add preparation capacity around seasonal demand, recurring workloads or the requirements of a growing accounting practice.
We fit agreed preparation activities into your existing process so your team can review and sign off without unnecessary disruption.
By reducing the computational workload, your qualified staff can dedicate more time to tax planning and client-facing advisory work.
Advantages
Handle More Work
Add experienced preparation capacity when recurring deadlines and seasonal tax workloads place pressure on your internal team.
Standardised Preparation
Use a defined process for computations, schedules, adjustments and return preparation across agreed client work.
More Time for Advisory
Reduce preparation pressure so your experienced professionals can focus more on review, tax planning and client relationships.
Scale Around Need
Use the level of tax outsourcing support your practice requires, from specific preparation work to broader seasonal capacity.
Common corporate tax questions
We provide dedicated UK corporation tax preparation support for accounting firms, including tax computations, adjustments, capital allowances, reliefs, CT600 preparation, schedules and agreed iXBRL tagging support.
Yes. Our UK scope includes corporation tax computations, capital allowances, expenditure analysis, R&D tax credit support, group and loss relief, associated companies, CT600 preparation and iXBRL tagging.
Yes. We can support the preparation of eligible UK R&D tax credit computations and supporting schedules for your qualified team's review.
Yes. The service is designed to provide additional preparation capacity around recurring workloads and seasonal corporation tax deadlines.
Yes. The model is designed to handle agreed computational and preparation work while your qualified staff retain responsibility for review, tax planning, professional judgement and sign-off.
Yes. The service can support smaller practices that need additional preparation capacity as well as established firms managing larger volumes of corporation tax work.
Yes. We structure the agreed preparation process around your existing requirements, information flow, review points and sign-off process.
Requirements depend on the engagement, but may include statutory accounts, trial balance, fixed asset information, prior-year tax computations, supporting schedules and other relevant financial or tax information.
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Learn more →Let's Talk
Whether you’re freeing up staff or managing seasonal demand, tell us where your tax team needs support. We’ll help structure the right outsourcing scope.