Corporation tax return for micro companies in Porthmadog
We calculate and file your Corporation Tax return as a micro company in Porthmadog, claim the allowances you are entitled to and tell you what to pay and when.
- Fixed fee, quoted up front
- Filed with HMRC
- 100% online, no office visits
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Get your fixed-fee quote in Porthmadog
Tell us a little about your company. It takes about a minute.
Prefer to talk? 0203 4411-258 or freephone 0800 6441-258
What does Corporation Tax return for micro companies in Porthmadog cost?
We quote a fixed fee for Corporation Tax return for micro companies in Porthmadog before any work starts, based on your turnover and the state of your records. We handle the whole job online and file with HMRC.
- Best for
- Companies with taxable profit to report to HMRC
- Fee
- Fixed fee, quoted up front
- Deadline
- Return: 12 months after year end. Payment: 9 months and 1 day after year end
- Filed with
- HMRC
- Service area
- Online to Porthmadog and across the UK
Why Porthmadog directors choose us for Corporation Tax return for micro companies
Fixed fee
One price for Corporation Tax return for micro companies in Porthmadog, agreed before we start.
Online from Porthmadog
Share records and approve everything by email. No travelling, no posting paperwork.
Companies House and HMRC
We handle both filings together so nothing falls between the cracks.
Deadline reminders
We diarise your accounts, tax and confirmation statement dates.
Free eligibility check
Not sure you qualify? Our calculators tell you in a minute.
Local figures, UK-wide help
We use ONS data for Gwynedd to point out what matters for businesses like yours.
Corporation Tax returns for Porthmadog micro companies
Corporation Tax is charged on a limited company’s taxable profit, not its accounting profit. The main rate is 25%, the small profits rate is 19% for profits up to £50,000, and profits between £50,000 and £250,000 pay the main rate less marginal relief. Getting the adjustments right, such as adding back depreciation, claiming capital allowances and removing disallowable expenses, is what keeps the bill accurate.
What is included
- A tax computation built from your accounts
- Capital allowances on equipment and vehicles
- A review of director expenses, loan accounts and benefits
- Trading losses claimed where they arise
- Return filed with HMRC and a payment reference sent to you
How to file a company tax return in Porthmadog
- 1
Send your accounts or bookkeeping records.
- 2
We compute taxable profit and the tax due.
- 3
You review the figures and the payment date.
- 4
We file the return with HMRC.
Corporation Tax returns for small companies for Porthmadog businesses: local facts
Porthmadog is in the Gwynedd council area, in Wales. Gwynedd has around 5,525 VAT- and PAYE-registered businesses, and 4,970 of them, about 90%, have fewer than ten employees (ONS UK Business Counts, 2026). That is the group the micro-entity rules were written for.
The largest groups of micro businesses in Gwynedd are agriculture, forestry and fishing (1,250), construction (700) and accommodation and food (580). For agriculture, forestry and fishing companies in Porthmadog, seasonal income, grants and farm equipment need careful year-end treatment, so we tie your accounts to bank records and an asset register. That puts agriculture, forestry and fishing at 25% of the local micro-business base.
Zooming in, the ONS neighbourhood area around Porthmadog (Gwynedd 010) has 380 VAT- or PAYE-registered businesses, and 320 of them (84%) are micro businesses.
Gwynedd ranks 725 of the 1105 areas we serve by number of micro businesses, and its micro share of 90% is in line with the 89% average across them. In construction (700 micro businesses in Gwynedd), Construction Industry Scheme deductions, retentions and stage payments can distort profit, so we reconcile your CIS statements before the accounts are prepared. In accommodation and food (580 micro businesses in Gwynedd), cash takings, tips and seasonal trading need a clear audit trail, so we match takings to bank deposits and check the VAT on each supply.
Companies registered in Wales follow the same Companies House deadlines and Corporation Tax rules as the rest of the UK.
Gwynedd at a glance
| VAT/PAYE-registered businesses | 5,525 |
| Micro businesses (under 10 staff) | 4,970 |
| Micro share | 90% |
| Rank of 1105 areas | 725 |
| Around Porthmadog (Gwynedd 010): businesses / micro | 380 / 320 |
| Agriculture, forestry and fishing | 1,250 |
| Construction | 700 |
| Accommodation and food | 580 |
Source: ONS UK Business Counts 2026, enterprises registered for VAT and/or PAYE.
Corporation Tax deadlines for Porthmadog directors
Accounts
Due at Companies House 9 months after your year end.
Tax return
CT600 due at HMRC 12 months after your accounting period ends.
Tax payment
Corporation Tax is due 9 months and 1 day after your year end.
Confirmation statement
At least every 12 months, filed within 14 days of your review period ending.
Full filing deadlines guide · Late filing penalties · Eligibility calculator
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Ready for Corporation Tax return for micro companies in Porthmadog?
Fixed fee, quoted up front. Filed with HMRC. 100% online.
Questions from Porthmadog directors
When is Corporation Tax due for a business in Porthmadog?
Nine months and one day after the end of your accounting period. The return itself is due twelve months after the period end.
Do micro companies pay less Corporation Tax?
Not because they are micro. The rate depends on profit, not size: 19% up to £50,000, 25% above £250,000 and a sliding rate in between.
How many micro businesses are there in Gwynedd?
The 2026 ONS UK Business Counts show 4,970 micro businesses (fewer than ten employees) among 5,525 VAT- and PAYE-registered businesses in Gwynedd.
Do I need an accountant based in Porthmadog?
No. Companies House and HMRC filing is entirely online, so we work with you remotely. We are based in Morden, south London, and work with limited companies across the UK, including those in Pwllheli, Caernarfon, Llanrwst and Porthmadog.
How many businesses are there around Porthmadog?
Zooming in, the ONS neighbourhood area around Porthmadog (Gwynedd 010) has 380 VAT- or PAYE-registered businesses, and 320 of them (84%) are micro businesses.
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