Corporation Tax Outsourcing for UK Accounting Firms
Keep Corporation Tax Work Moving Through Your Practice
We prepare Corporation Tax computations and returns for UK accounting practices, ready for your team to review.
Clients Served
A 4.9+ client rating, and your firm keeps review and sign-off.
What We Need From Your Practice
- Current-year accounts & Trial balance
- Previous Corporation Tax return
- Previous tax computations
- Details of known adjustments
- Relevant working paper & supporting schedules
- Practice instruction & required completion date
Why Firms Choose SHRM
- You keep the technical review: We prepare the computations and working papers. Your practice keeps the final technical review and sign-off.
- Filing stays with you: Your practice approves the return and files it with HMRC under your own agent arrangements.
- Capacity for deadline clusters: Extra help when several filing dates fall close together.
- Clear working papers: Each file returns with workings your reviewer can follow.
What Our Corporation Tax Outsourcing Covers
CT600 preparation
Draft CT600 information prepared from the accounts and tax information you supply.
Corporation Tax computations
Computations that show how the accounts lead to the figures in the return.
Accounts-to-tax reconciliation
A clear link between the statutory accounts and the tax computation.
Supporting schedules
Schedules prepared alongside the working papers where included in scope.
Review-ready handover
Work returned with a note of what is done and what still needs your attention.


How Our Corporation Tax Outsourcing Process Works
Free consultation and scope
Tell us what you want to hand over, your volumes and your deadlines. We confirm the scope and who does what.
Pilot batch
We prepare a small batch of computations first so you can check the quality and the layout of the working papers.
Prepare and raise queries
Incomplete information and points needing technical judgement are raised, not assumed.
Review and ongoing delivery
Finished work comes back with workings and notes. Your team reviews it, and we move to regular delivery once you're happy.
Need More Corporation Tax Capacity?
Tell us about your Corporation Tax workload and deadlines, and we’ll talk through the scope.
Common Questions About Corporation Tax Outsourcing
Yes. We prepare the computations and working papers, and your practice keeps the final technical review and sign-off.
We prepare the return for your review. Your practice approves it and files it with HMRC under your own agent arrangements.
Preparation works from the accounts and tax information your practice supplies. We confirm exactly what we need before we start.
Yes. We start with a small pilot batch so you can check the quality first.