Tax Preparation & Filing in the United Kingdom
We take your tax from a deadline you dread to a process that's simply handled. Delivered to FRS 102 / UK GAAP for UK businesses, priced in GBP.
UK annual compliance is four deadlines that most founders experience as one vague sense of dread in the autumn. Corporation tax payment, the CT600, the Companies House accounts and the director's Self Assessment all draw on the same year of bookkeeping — and they are due at four different times.
Corporation tax is payable nine months and one day after the accounting period ends. Companies House wants the accounts nine months after your accounting reference date. HMRC wants the CT600 at twelve months. Directors and sole traders then have Self Assessment on 31 January. We prepare all four from one closed set of FRS 102 accounts.
The deadlines we track against your ledger.
| Obligation | Frequency | Due | Authority |
|---|---|---|---|
| Corporation tax paymentCompanies with profits under £1.5m | Annual | 9 months and 1 day after the end of the accounting period | HMRC |
| Annual accounts to Companies HousePrivate limited companies | Annual | 9 months after the accounting reference date | Companies House |
| CT600 company tax return | Annual | 12 months after the end of the accounting period | HMRC |
| Self Assessment return and balancing paymentDirectors and sole traders | Annual | 31 January | HMRC |
Last reviewed against the source . These are the standard dates. Extensions through a registered agent, a non-calendar year end, and volume-based filing frequencies all shift them — confirm your own dates with HMRC. This is general information, not tax advice.
Tax Preparation deliverables
- Corporate return preparation (1120 / CT600 / T2 / etc.)
- Founder & director personal returns
- Local-GAAP annual financial statements
- Workpaper preparation & schedules
- Coordination with your filing agent or CPA
Xero
Accounts and workpapers are built directly from the Xero ledger, so the figures filed at Companies House, the figures on the CT600 and the figures in your management accounts are the same figures — not three reconciliations of each other.
A worked example, in your currency.
A London marketing agency, 900 transactions a month, VAT-registered, 18 staff.
- In-house bookkeeper (fully loaded, per month)
- £3,400
- Salt bookkeeping + VAT compliance
- £1,150
- Monthly saving
- £2,250
Figures in GBP. Fully loaded cost includes employer NIC, pension, software and supervision.
The framework your United Kingdom accounts are held to.
We prepare to UK GAAP (FRS 102) or IFRS, as adopted. These are the bodies that set that framework and the authorities you file with — linked so you can verify the standard rather than take our word for it.
- Professional bodyICAEWInstitute of Chartered Accountants in England and WalesUK chartered accountancy body and ethical code.
- Professional bodyACCAAssociation of Chartered Certified AccountantsGlobal professional body with a large UK membership.
- Standards setterFRCFinancial Reporting CouncilIssues FRS 102 and UK auditing standards.
- RegulatorHMRCHM Revenue & CustomsVAT, corporation tax, PAYE and Making Tax Digital.
- RegulatorCompanies HouseStatutory accounts and confirmation statements.
Listed for reference. Salt Accounting Group is not stating membership, registration or affiliation with any of these organisations. Where a filing must be lodged by a registered local agent, it is — your agent keeps the lodgement and the professional sign-off.
Tax Preparation in United Kingdom
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Tax Preparation & Filing for United Kingdom, simply handled.
Tell us where you trade and what shape the books are in. You get scope, price and a start date in writing within one business day — no obligation.