Corporation tax return

Rated 5/5 on Google★★★★★
AAT QUALIFIED ACCOUNTANT

Your corporation tax return filed accurately, on time, every time

I prepare and file your CT600 company tax return and full statutory accounts personally, making sure every deadline is met and no allowable relief is left unclaimed.

Fixed fee, plain English throughout, and you deal directly with me from start to finish.

★★★★★Google Review

“Would 100% recommend, is always polite, professional and helpful! His knowledge has been a saving grace many times.”

Sally Radford · verified client
Luke Jackson FMAAT, accountant preparing a corporation tax return for a UK limited company
7+ years practice experience
AAT Level 4 qualified (FMAAT)
5/5 Google review rating
Same-day responses guaranteed
QuickBooks ProAdvisor and FreeAgent Partner

Is your corporation tax return on track?

Answer five quick questions and get a personalised next step based on your company’s situation.

WHAT I DO

What I handle on your behalf

Corporation tax covers more than filling in a form, so I take care of the full picture for your limited company.

01

CT600 company tax return preparation and filing

I prepare your CT600 using your finalised accounts, calculate the corporation tax owed, and file directly with HMRC before your deadline. I check for all available reliefs including capital allowances, so you never overpay. You receive a clear summary of what was filed and what is due.

Filed directly with HMRC
02

Statutory accounts preparation

Your corporation tax return must be accompanied by statutory accounts showing your profit, loss and balance sheet. I prepare these to the required standard and file them at Companies House on your behalf. The two submissions are coordinated so nothing falls through the gaps.

Companies House filing included
03

Tax planning for your limited company

Once your return is filed, I look ahead at how your company can reduce its tax bill legitimately in the next period. This includes reviewing director salary and dividend strategy, timing of expenditure, and the impact of any planned changes to the business. It is a practical conversation, not a sales pitch.

Included as standard
WHY IT WORKS

Why clients come back every year

The difference between a one-off filing service and an accountant who genuinely knows your company is felt at every deadline.

You deal with me directly, every time

There are no junior staff and no handoffs at Anchor Accounts and Books. When you have a question about your corporation tax, I answer it personally, usually the same day. You always know who is handling your accounts.

Fixed fees with no end-of-year surprises

My fees are agreed upfront before any work starts. You will not receive an unexpected invoice after your return has been filed. This makes it straightforward to budget for your accountancy costs as part of running the company.

Every relief checked before filing

Missing a capital allowance claim or misclassifying a director salary can mean paying more tax than you should. I work through your figures carefully before submitting, not after. Common errors like incorrect accounting period dates or disallowed expenses are caught at the preparation stage.

FROM CLIENTS I WORK WITH

What clients say

★★★★★

“I have used Luke for my last two returns. He always replies to my questions promptly, and fits our meetings around my working hours. I couldn’t recommend him more highly.”

D.I.
Barbershop Owner
★★★★★

“Would 100% recommend, is always polite, professional and helpful! He is always available to answer any questions I have and his knowledge has been a saving grace many times!”

Sally Radford
Verified Google Review
★★★★★

“Luke is an extremely professional and approachable guy. His knowledge in the field of accounting is second to none. He has helped me personally with my business ventures and I will continue to recommend him moving forward.”

X7 EYN
Verified Google Review
GETTING STARTED

How it works

Getting your corporation tax return filed is a straightforward four-step process from first contact to confirmation.

01

Book a free call

We have a short, no-obligation call where I find out about your company, your accounting period and what you need. I will give you a fixed fee before anything else happens.

02

Share your records

You send me your bookkeeping records or give me access to your cloud accounting software. I work with QuickBooks, FreeAgent, Xero and Sage, so whatever you use is fine. If your records need tidying first, I will let you know exactly what is required.

03

I prepare and review everything with you

I prepare your statutory accounts and CT600, check for all available reliefs and walk you through the figures in plain English before anything is submitted. You approve the return before it goes anywhere.

04

Filed on time, confirmed in writing

I file your return with HMRC and your accounts at Companies House, then send you confirmation of both submissions along with a clear note of any tax due and the payment deadline. Your records are kept on file for future years.

COMMON QUESTIONS

Common questions

Your CT600 must be filed with HMRC within 12 months of the end of your accounting period. However, the corporation tax itself is due for payment within nine months and one day of the period end. These are two separate deadlines and missing either one can result in penalties or interest charges.
A flat penalty of £100 applies from day one after the filing deadline. A further £100 is charged if the return is still outstanding after three months. From six months late, HMRC charges 10 percent of the unpaid tax, with a further 10 percent added at the 12-month mark. From 1 April 2026, fixed late filing penalties are being increased to account for inflation, so the cost of missing deadlines is rising.
Technically yes, but the CT600 requires detailed tax computations, accurate treatment of capital allowances, director remuneration and any reliefs your company is entitled to. Errors or omissions are common and can mean overpaying tax or triggering HMRC queries. For most limited company directors, the cost of getting it wrong outweighs the cost of using a qualified accountant.
You still have to file a CT600 even if your company made a loss or broke even. No tax will be payable on a loss-making year, but the filing obligation remains and the deadline still applies. A loss can also be carried back or forward to offset tax in other periods, which is worth reviewing before the return is filed.