Best Bookkeeping
& Accounting in
United Kingdom

For 2026/27 the UK VAT registration threshold remains at £90,000 of taxable turnover in any rolling 12-month period, with a deregistration threshold of £88,000 — confirmed unchanged at Spring Statement 2026. Our bookkeeping process tracks rolling 12-month taxable turnover monthly (not annually) so we identify approaching threshold breaches in advance, including the often-missed forward-look test where you must register if you reasonably expect taxable supplies in the next 30 days alone to exceed £90,000 (typical when a contractor wins a single large contract). Once registered, we handle MTD-compliant quarterly VAT returns through Xero, QuickBooks, Sage, or FreeAgent, with full digital-link audit trails to satisfy HMRC. We also assess whether your business benefits from the Flat Rate Scheme (turnover under £150,000), Cash Accounting Scheme (turnover under £1.35 million), or Annual Accounting Scheme.

Corporation Tax in 2026/27 operates on a tiered system that has applied since 1 April 2023: profits up to £50,000 are taxed at the 19% small profits rate; profits at or above £250,000 are taxed at the 25% main rate; profits between £50,000 and £250,000 fall into the marginal relief band, where each additional pound of profit is effectively taxed at 26.5% — counterintuitively higher than the headline 25% rate. Our CT600 preparation includes computing your taxable profit, applying the correct rate band, calculating marginal relief using HMRC's 3/200 fraction where applicable, and adjusting the £50,000 and £250,000 thresholds for associated companies and short accounting periods. Capital allowances planning includes Full Expensing (made permanent from April 2024 — 100% first-year allowance on most new plant and machinery), the Annual Investment Allowance, and the main writing-down allowance which drops to 14% from April 2026.

From accounting periods beginning on or after 6 April 2025, the increased Companies House size thresholds are: Micro-entity (FRS 105) — meets at least two of: turnover ≤ £1 million, balance sheet total ≤ £500,000, average employees ≤ 10. Small company (FRS 102 Section 1A) — meets at least two of: turnover ≤ £15 million, balance sheet total ≤ £7.5 million, average employees ≤ 50. The thresholds increased significantly in April 2025 (small turnover limit rose from £10.2 million to £15 million), reclassifying an estimated 113,000 companies from small to micro and 14,000 from medium to small — bringing many businesses into audit exemption. We prepare FRS 105 micro-entity accounts for the smallest companies (most simplified format) and FRS 102 Section 1A small company accounts for larger ones. We file accounts at Companies House within 9 months of the financial year end (21 months for first accounts), include the required ECCT Act 2023 audit-exemption statement on the balance sheet where applicable, and file the matching CT600 with HMRC.

MTD for ITSA is the most significant UK personal tax change since Self Assessment was introduced. The phased rollout is: from 6 April 2026 — mandatory for sole traders and landlords with qualifying income (gross self-employment + UK property income, before expenses) over £50,000 in the 2024/25 tax year (approximately 780,000 taxpayers); from 6 April 2027 — over £30,000 in 2025/26; from 6 April 2028 — over £20,000 in 2026/27. Mandated taxpayers must keep digital records, submit quarterly updates to HMRC through MTD-compatible software, and complete a Final Declaration by 31 January following the tax year end (replacing the traditional SA100 return). HMRC's new points-based late submission penalty regime applies. Our MTD ITSA readiness includes: client segmentation against historic Self Assessment data; transition from paper or spreadsheet records to MTD-compatible software (FreeAgent for landlords, Xero or QuickBooks for sole traders); setup of digital links with no manual rekeying; a quarterly reporting calendar; and bridging-software arrangements for clients who continue using spreadsheets.

Yes — white-label production bookkeeping is one of our core service lines for UK accountants in London, Manchester, Birmingham, Leeds, Edinburgh, and across the UK. Our model: your firm continues as the client-facing accountant; our offshore team performs the production work behind your branding. Typical scope includes monthly transaction processing in Xero, QuickBooks, Sage, or FreeAgent; bank and credit-card reconciliation; quarterly VAT return preparation and MTD submission; year-end working papers and lead schedules ready for partner review; CT600 draft computations; FRS 105 / FRS 102 draft statutory accounts; PAYE/RTI processing; and Self Assessment data preparation. Working hours overlap with UK GMT/BST. NDA-protected, ICO-aligned data handling, two-factor authentication on all client software. UK accountancy clients typically achieve a 50–70% reduction in production cost compared to UK in-house bookkeepers, freeing partner and senior time for advisory work.

Our UK payroll service operates fully on HMRC's Real Time Information (RTI) framework — every pay run is reported to HMRC via Full Payment Submission on or before payday, with Employer Payment Summary submissions for adjustments. We handle weekly, fortnightly, four-weekly, and monthly pay cycles; produce digital payslips; calculate income tax, employee and employer National Insurance, pension auto-enrolment, statutory sick/maternity/paternity/adoption pay, student loan deductions, and benefits-in-kind via P11D. Year-end P60s and P11Ds produced on time. For construction businesses we manage the full Construction Industry Scheme (CIS): subcontractor verification with HMRC, monthly CIS300 contractor returns, gross/standard/higher deduction rates, payment and deduction statements (CIS PDS) issued to subcontractors monthly, and CIS suffered reclaim through the limited company's PAYE scheme. For contractors operating through limited companies, we provide IR35 status assessment support, off-payroll working compliance, and tax-efficient salary/dividend planning.