Corporation Tax Return for Micro Companies in Carmarthenshire
- Simple Fixed Pricing
- Clear Filing Process
- HMRC CT600 Support
- Micro-Entity Specialists
Corporation Tax Return Preparation
- CT600 preparation
- Tax adjustments review
- Allowable expense review
- Capital allowances review, where applicable
- Losses & reliefs review, where applicable
- HMRC CT600 filing
- Submission confirmation
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Accountant-prepared Corporation Tax Returns and CT600 filing support.
Our Core Corporation Tax Services For Micro Companies
Our fixed-fee service covers everything a qualifying micro-entity company needs to complete and file its Corporation Tax Return correctly and on time.
Corporation Tax Computations
We calculate your taxable profit from your micro-entity accounts, applying the correct adjustments, disallowables and capital allowances.
CT600 Preparation
Supporting accounts and computations prepared in the required format, where applicable
HMRC Online Submission
We file your corporation tax return directly with HMRC and send you the confirmation receipt for your records.
Tax Relief Reviews
We review relevant expenses, losses, allowances and tax adjustments based on your company's circumstances to help ensure the Corporation Tax position is calculated correctly.
Deadline Management
We track your accounting period, payment date and filing date, and remind you well before HMRC does.
HMRC Correspondence
We can help you respond to relevant HMRC correspondence, including filing queries and penalty notices, where this falls within the agreed service.
What Is Included In Your Fixed Fee
Corporation tax computation from your figures
CT600 return prepared and reviewed by an accountant
iXBRL company accounts tagged for HMRC
Online filing with HMRC and confirmation receipt
Payment reference and tax due clearly explained
Unlimited email support during your filing
How We File Your Corporation Tax Return
Send Your Figures
Upload your bookkeeping records, bank summaries or year-end accounts through our secure portal.
We Prepare Your Return
Your accountant produces the computation and CT600, checking reliefs and allowances along the way.
You Approve
We send the return and a plain-English summary of the tax due, with the payment deadline and reference.
We File With HMRC
Once you approve the return, we submit it to HMRC and provide the available submission confirmation for your records.
Corporation Tax Filing For Micro Companies Across All Sectors
Our corporation tax service covers a wide range of small company types, including:
E-Commerce Corporation Tax
Marketplace fees, stock and platform payouts reconciled before your CT600 is prepared.
Contractor & Freelancer CT600
Single-director limited companies with salary, dividends and expense reviews handled correctly.
Property SPV Corporation Tax
Rental profit, mortgage interest and property costs treated properly for your SPV's return.
Trades & Construction Tax
CIS deductions, tools, vehicles and subcontractor costs reflected in your corporation tax return.
Tech & Digital Corporation Tax
Software subscriptions, contractor costs and development spend reviewed for available reliefs.
Dormant & Low-Activity Companies
Nil returns and low-activity filings submitted so HMRC records stay clean and penalty free.
Corporation Tax Deadlines Every Micro Company Should Know
Corporation Tax is normally due 9 months and 1 day after the end of the accounting period, while the Company Tax Return is generally due 12 months after the end of that period. Your actual deadlines can vary depending on your company’s circumstances and accounting periods. Check more details here
Pay Your Corporation Tax
9 months and 1 day after your accounting period ends
File Your CT600 Return
12 months after your accounting period ends
Late Filing Penalty
Penalties can apply if a Company Tax Return is filed after the deadline. Current HMRC rules should be checked for the relevant accounting period.
Late Payment
HMRC charges daily interest until the balance is cleared
─── FAQs
FAQs: Corporation Tax Returns For Micro Companies
Reach out to our UK team any time at info@microentityaccounts.co.uk — we are always happy to help.
A Corporation Tax Return is the report a limited company makes to HM Revenue & Customs covering its profits for an accounting period. It sets out the company's income, allowable deductions and the resulting taxable profit, along with any reliefs or adjustments that apply to the company's circumstances. Most companies submit this information electronically, and the return forms the basis on which HMRC assesses the Corporation Tax due.
CT600 is the name of the HMRC form used to submit a Company Tax Return. In practice, when an accountant or director refers to 'filing the CT600', they mean submitting the Corporation Tax Return and its supporting calculations to HMRC. It is not a separate tax or a different regime — it is simply the prescribed format in which the return is delivered.
No. There is no separate 'micro-entity CT600' or a distinct Corporation Tax regime for smaller companies. A micro company deals with Corporation Tax through the same Corporation Tax Return process as any other limited company, subject to its own circumstances, accounting period and the applicable rules. What can differ is the level of detail in the supporting accounts and computations, not the nature of the return itself.
Preparation usually begins with reviewing the company's financial information for the period, including the accounting profit or loss. From there, relevant tax adjustments are identified — for example, disallowable expenditure or capital allowances where they apply — so that taxable profit can be determined. The Corporation Tax Return and any supporting computations are then prepared for submission to HMRC. The exact work depends on the company's circumstances and the records available.
They are two separate documents serving two different purposes. Statutory accounts are prepared under the applicable accounting framework and are delivered to Companies House where required, while a Corporation Tax Return such as a CT600 is submitted to HMRC. One is not a substitute for the other, and Companies House does not approve or sign off accounts prepared by an accountant. Completing a CT600 does not automatically discharge the company's Companies House filing obligations, such as the confirmation statement.
Accounting profit follows accounting standards, while taxable profit follows Corporation Tax legislation. Some expenses shown in the accounts may not be allowable for tax, and some reliefs or allowances reduce taxable profit without appearing as an accounting entry. These differences are handled through tax adjustments in the computations that accompany the return, which is why the two figures often diverge.
No, and this catches some directors out. The deadline for submitting the Corporation Tax Return and the deadline for paying the Corporation Tax are separate, and payment is generally due before the return needs to be filed. The precise dates depend on the company's accounting period and the applicable HMRC requirements, so it is worth checking your own dates well ahead rather than assuming one deadline covers both.
It depends. Being dormant for Corporation Tax purposes is not the same as being dormant for Companies House purposes, and the two are assessed separately. A company that HMRC accepts as dormant for Corporation Tax may not need to submit a return for that period, but this is not automatic for every company and does not remove Companies House filing obligations. If you are unsure where your company stands, it is worth reviewing the position before assuming nothing is due.
Yes. We work with directors of small limited companies across Carmarthenshire, from Carmarthen and Llanelli through to Ammanford, Newcastle Emlyn and the surrounding rural areas. Our role is to help prepare the Corporation Tax Return and CT600, review the figures behind it and manage the submission to HMRC where applicable, so you have a clear picture of what is being filed and why.