Payroll Accountants in London
Running payroll for your employees is one of the most compliance-critical tasks a London business owner faces. Every pay cycle, HMRC expects accurate tax code application, precise National Insurance calculations, correct student loan deductions, up-to-date National Minimum Wage rates, and a Real Time Information submission on or before each pay date. Get any of this wrong a miscalculated tax code, a missed RTI deadline, an incorrect auto-enrolment assessment and HMRC begins charging penalties. Errors in employees’ pay damage trust and morale in ways that can take months to repair. At AccFirm, our specialist payroll accountants in London handle every aspect of your payroll so you never have to worry about it.
AccFirm provides fully managed payroll accounting services for sole traders, limited companies, partnerships, startups, and SMEs across London from a single-director company running their first payroll to established businesses with thirty or more employees. You are assigned a dedicated, qualified payroll accountant who knows your business, manages your complete pay cycle, submits RTI to HMRC on time every month, handles all statutory payments, manages auto-enrolment, and produces branded payslips for every employee. Our payroll accountants are authorised HMRC agents meaning we deal with HMRC directly on your behalf for all payroll-related correspondence, tax code changes, and penalty queries.
What Our Clients Say About AccFirm
Many of our Customers have started their early careers with AccFirm
We’ve been working with this accounting team for over two years, and the difference has been incredible. From bookkeeping and VAT returns to corporation tax planning, everything is handled efficiently and on time. They keep us fully compliant with HMRC while helping us improve cash flow and profitability. I highly recommend their services to any business owner.
Sarah Thompson
Thompson Retail Ltd
As a contractor under the Construction Industry Scheme (CIS), I needed accountants who truly understand HMRC requirements. They managed my CIS registration, monthly returns, and self-assessment without any stress. Their guidance saved me both time and money. Professional, reliable, and always available when needed
James Patel
Self-Employed Contractor (CIS)
AccFirm took over our accounts when our previous firm kept missing deadlines. Within three months they had identified over £4,200 in tax savings we had been leaving on the table including expenses we had never been told we could claim. They handle everything from our quarterly VAT returns to our year-end accounts and payroll, and our dedicated accountant is always reachable. For any London small business owner, I cannot recommend them enough.
Daniel Okonkwo
Okonkwo Facilities Management Ltd
MTD Ready
Revenue Increase
Client Satisfaction
Why London Businesses Trust AccFirm for Payroll Accounting Services
For any London employer from a sole trader with a single part-time member of staff to an SME with twenty employees across multiple pay grades running payroll correctly means applying the right wage rates, the right tax codes, the right National Insurance calculations, and meeting every HMRC submission deadline. The table above is the reference guide that every London employer should have to hand. Paying a worker below the National Living Wage or National Minimum Wage is not just a payroll error it is a legal offence that can result in HMRC naming and shaming, financial penalties, and significant reputational damage for your business.
AccFirm payroll accountants in London monitor every change to National Minimum and Living Wage rates updated every April and apply them to your payroll before the effective date. We also claim the Employment Allowance automatically for every eligible client, reducing employer National Insurance by up to £5,000 per year. For many small London employers, this single allowance saves more than the annual cost of AccFirm payroll accounting services. And for limited company directors, AccFirm director payroll optimisation setting director salary at the National Insurance secondary threshold and taking the remainder as dividends is reviewed every April and saves the average director over £1,200 per year in personal tax and National Insurance.
AccFirm also handles all HMRC correspondence relating to payroll tax code change notifications (P9 and P6 forms), HMRC queries about RTI submissions, underpaid or overpaid employee NI, and any payroll compliance enquiries. As your authorised HMRC payroll agent, we respond to HMRC on your behalf within the required timescales, removing an entire category of administrative burden from your working week.
“Need Professional Business Support?”
Let our experienced accountants handle the compliance and financial complexities while you focus on growing your business.
Why Outsourcing Payroll to AccFirm Makes Financial Sense for London Businesses
The comparison table above reveals something that most London business owners do not fully appreciate: the true cost of running payroll in-house is not just the monthly time investment, it is the risk exposure. Every RTI submission carries a penalty risk if filed late. Every tax code change notification from HMRC requires action within a specific timeframe. Every employee who joins or leaves triggers P45 and starter checklist obligations. Every payroll cycle creates the potential for an error that affects an employee’s take-home pay, triggers an HMRC compliance enquiry, or results in a National Minimum Wage underpayment. AccFirm payroll accountants absorb all of these risks on your behalf and their error rate is zero.
For a London business with five employees, running payroll internally typically consumes three to five hours per month of a director’s or office manager’s time that has a real opportunity cost. Outsourcing to AccFirm specialist payroll accountants in London frees that time entirely, transfers all HMRC compliance risk to qualified professionals, and eliminates the need to track every annual change in National Minimum Wage rates, National Insurance thresholds, student loan deduction rules, and auto-enrolment legislation. The fixed monthly cost of AccFirm payroll accounting services is transparent, predictable, and when the time savings and penalty avoidance are factored in consistently represents excellent value for any London employer.
AccFirm uses cloud-based payroll software Xero Payroll, QuickBooks Payroll, or Sage Payroll integrated with your existing accounting platform for seamless month-end reporting. Payroll data flows directly into your bookkeeping records, eliminating manual journal entries and ensuring your management accounts always reflect your true labour costs in real time.
Our Payroll Accounting Services in London
AccFirm provides a complete range of payroll accounting services for London businesses of all sizes from single-director companies running their first payroll to established SMEs with multiple employees, variable pay, and complex statutory payment requirements.
PAYE Registration & RTI Management
Every employer who pays an employee above £123 per week must register as an employer with HMRC and operate PAYE. AccFirm handles the complete PAYE registration process obtaining your employer PAYE reference, setting up employee records, assigning the correct tax codes, and configuring your payroll software. Once operational, we submit a Full Payment Submission (FPS) to HMRC on or before every pay date the Real Time Information obligation that has been mandatory since 2013. We also submit Employer Payment Summary (EPS) returns when no payroll is run, to claim statutory payment reclaim, or to apply the Employment Allowance. AccFirm payroll accountants in London have never submitted a late RTI return for any payroll client.
Auto-Enrolment & Workplace Pension Management
Since 2012, every employer in the UK has been required to automatically enrol eligible workers into a qualifying workplace pension scheme and contribute a minimum of 3% of qualifying earnings as employer contributions. The Pensions Regulator (TPR) actively investigates auto-enrolment compliance failures and charges significant fixed penalties starting at £400 for an initial breach and escalating to £2,500–£10,000 per day for continued non-compliance. AccFirm payroll accountants manage the complete auto-enrolment process assessing worker eligibility every pay period, enrolling eligible workers into your chosen pension scheme (Nest, The People’s Pension, or other qualifying providers), managing contribution calculations, producing the required statutory communications to employees, and managing the triennial re-enrolment process.
Statutory Pay — SSP, SMP, SPP and Shared Parental Leave
Statutory payments are one of the most frequently miscalculated areas of UK payroll. Statutory Sick Pay (SSP), Statutory Maternity Pay (SMP), Statutory Paternity Pay (SPP), Statutory Adoption Pay, and Shared Parental Leave Pay all carry specific eligibility criteria, waiting periods, rate structures, and recovery rules. For 2025/26: SSP is £116.75 per week (payable from the fourth qualifying day of illness), SMP is 90% of average weekly earnings for the first 6 weeks then £184.03 per week (or 90% if lower). AccFirm payroll accountants calculate all statutory payments accurately, ensure the correct amount is recovered from HMRC where eligible, and advise on your obligations as an employer when an employee takes leave.
Director Payroll Optimisation — Salary & Dividend Structure
For limited company directors, payroll is not just about running a payslip it is about structuring your income in the most tax-efficient way available. AccFirm payroll accountants in London advise every director client on the optimal salary level for the current tax year typically set at the National Insurance secondary threshold (£9,100 for 2025/26) to maintain state pension entitlement without triggering employer National Insurance. The remainder of required income is then extracted as dividends from company profits after Corporation Tax. This structure saves most AccFirm director clients between £1,200 and £11,000 per year compared to taking all income as salary. We review and update this structure every April when thresholds change.
Year-End Payroll — P60s, P11Ds, and Final Submissions
At the end of each tax year (5 April), every employer must complete a range of year-end payroll obligations. AccFirm manages all of these on your behalf, issuing P60s to all current employees by 31 May, filing P11D returns for any employee benefits in kind (company cars, private medical insurance, gym memberships, loans) by 6 July, filing the P11D(b) employer’s Class 1A NI return, and submitting the final EPS to HMRC confirming the payroll year has ended. AccFirm also conducts a full payroll reconciliation checking that the year’s payroll totals reconcile to the figures HMRC holds, identifying and correcting any discrepancies before they trigger an HMRC compliance enquiry.
CIS Payroll for Construction Businesses
The Construction Industry Scheme (CIS) creates a unique set of payroll obligations for construction businesses that engage subcontractors. Every month, contractors must verify subcontractors with HMRC, apply the correct deduction rate (20% for registered subcontractors, 30% for unregistered), deduct CIS amounts from subcontractor payments, issue monthly deduction statements, and file a CIS monthly return with HMRC by the 19th. AccFirm payroll accountants manage the complete CIS payroll process including subcontractor verification, monthly CIS return filing, deduction statements, and setting off CIS deductions suffered against PAYE and NI due to HMRC. We also advise on which workers must be treated as employees versus subcontractors a critical compliance distinction that HMRC is actively investigating in the construction sector.
“Need Professional Business Support?”
Let our experienced accountants handle the compliance and financial complexities while you focus on growing your business.
How AccFirm Payroll Accounting Service Works — Step by Step
AccFirm payroll client goes through the same structured setup ensuring your PAYE is correctly registered, your employees are correctly set up, your pension scheme is compliant, and your first payroll is processed accurately before your deadline.
Free Payroll Consultation
We begin with a no-obligation conversation about your current payroll situation your number of employees, your pay frequency, your existing PAYE setup, any auto-enrolment scheme in place, and any current issues with HMRC payroll compliance. If you have outstanding RTI returns, penalty notices, or auto-enrolment compliance concerns, we address these immediately and provide a clear remediation plan. There is no commitment required and no time pressure.
Payroll Setup and Software Configuration
AccFirm registers your business as an employer with HMRC (if required), configures your cloud payroll software Xero Payroll, QuickBooks Payroll, or Sage Payroll and sets up each employee record with the correct tax code, National Insurance category, starter declaration, and pension status. We also configure your pension scheme, set up the Employment Allowance claim, and integrate payroll with your existing accounting software for seamless month-end bookkeeping.
Monthly Payroll Processing
Every month or at your chosen pay frequency AccFirm processes your complete payroll run. We calculate each employee's gross pay, apply the correct tax code and Income Tax deduction, calculate National Insurance for both employee and employer, apply any student loan deductions, process pension contributions, and handle any statutory payments. You receive payroll reports for review before submission, and we issue branded payslips to all employees digitally or by post.
RTI Submission to HMRC
On or before every pay date, AccFirm submits a Full Payment Submission (FPS) to HMRC via Real Time Information reporting every employee's pay, tax, and National Insurance for that period. Where applicable, we also submit an Employer Payment Summary (EPS) to reclaim statutory payments or apply the Employment Allowance. All submissions are made using our HMRC-authorised payroll software and you receive confirmation of every successful submission.
Pension Contributions and Auto-Enrolment Compliance
AccFirm manages your workplace pension contributions every pay period calculating both employee and employer contributions, communicating with your pension provider, and maintaining the records required by The Pensions Regulator. We assess new starters for auto-enrolment eligibility, process enrolment communications, and manage opt-outs and re-enrolment. We also monitor your three-year re-enrolment anniversary and manage the re-enrolment process and declaration of compliance.
Year-End and Annual Review
At each tax year end, AccFirm completes the full cycle issuing P60s to all employees by 31 May, filing any P11D benefits in kind returns by 6 July, filing the P11D(b) employer's Class 1A NI declaration, and reconciling your payroll to HMRC's records. We also conduct an annual review of your director salary structure, update all employee tax codes for the new tax year, apply the latest National Minimum Wage rates, and brief you on any legislative changes that will affect your payroll in the coming year.
Tax Advice and Payroll Planning for London Businesses
Specialist payroll accountant is not an optional extra for London employers; it is essential protection against a range of automatic, escalating HMRC penalties that most business owners do not even know exist until they receive the first notice. A single late RTI submission can trigger a £100 to £400 automatic penalty. An NMW underpayment, even an accidental one, can trigger a 200% financial penalty and public naming and shaming by HMRC. Auto-enrolment non-compliance can result in escalating daily penalties from The Pensions Regulator. AccFirm payroll accounting services provide complete protection against all of these risks.
Beyond compliance, AccFirm payroll accountants in London deliver proactive tax planning as an integral part of the payroll service. The Employment Allowance worth up to £5,000 per year in employer National Insurance savings is claimed automatically for every eligible AccFirm payroll client from the first payroll run. Director salary optimisation is reviewed every April. Pension contribution planning using employer pension contributions as a Corporation Tax-deductible strategy is integrated into our annual review for every limited company client. And the introduction of Making Tax Digital for Income Tax Self Assessment from April 2026 which will require directors earning above £50,000 to submit quarterly digital updates to HMRC is already being planned for across all AccFirm payroll and accounting clients.
AccFirm stays current with every legislative change affecting UK payroll National Minimum and Living Wage updates, National Insurance threshold changes, student loan thresholds, pension contribution minimums, and changes to statutory payment rates. When the government announces payroll-related changes in the Budget or Finance Act, every AccFirm payroll client is briefed immediately on the implications for their specific payroll, and changes are implemented before the effective date not after.
“Need Professional Business Support?”
Let our experienced accountants handle the compliance and financial complexities while you focus on growing your business.
Payroll and Tax Services — How AccFirm Goes Beyond Basic Payroll
The most effective payroll accountants in London do more than process payslips. They integrate payroll with your overall tax position, advise on the most efficient ways to structure employee and director remuneration, identify every legitimate saving in employer National Insurance and Corporation Tax, and ensure that payroll decisions are always made with a clear understanding of their tax implications. This is the standard AccFirm holds itself to for every payroll client in London.
For growing London businesses, payroll planning becomes increasingly important as headcount grows. The Employment Allowance disappears once your employer NI bill exceeds £100,000 per year. The Construction Industry Scheme creates specific obligations and compliance risks as construction businesses engage more subcontractors. The introduction of employee benefits company cars, private medical, gym memberships, employee loans creates P11D reporting obligations that carry their own penalty regime. And the expansion of auto-enrolment to include all eligible workers, regardless of the number of hours they work, means that even part-time and casual workers require careful assessment every pay period. AccFirm payroll accounting services evolve with your business the support we provide to a single-director company on day one is significantly different from and more comprehensive than what we provide to the same company three years later with twelve employees and a complex benefits structure.
AccFirm is also fully prepared for the payroll implications of Making Tax Digital for Income Tax Self Assessment, which takes effect for self-employed individuals and directors earning above £50,000 from April 2026. The quarterly digital reporting requirement will affect many full-time London limited company directors who receive both salary and dividends, and AccFirm payroll and accounting teams are already working together to ensure every affected client’s digital records are structured correctly to support both their payroll obligations and their MTD for ITSA quarterly submissions from a single integrated system.
AccFirm Payroll Process What Happens When You Onboard
Every AccFirm payroll client goes through the same structured setup ensuring your PAYE is correctly registered, your employees are correctly set up, your pension scheme is compliant, and your first payroll is processed accurately before your deadline.
Payroll Health Check
When you join AccFirm for payroll accounting services, we begin with a comprehensive review of your current payroll position examining your most recent RTI submissions, checking your pension assessment records, reviewing any outstanding HMRC correspondence, and assessing your director salary structure. For businesses that have been running payroll themselves, this review frequently identifies historic errors incorrect tax codes, missed Employment Allowance claims, auto-enrolment assessment failures that can be corrected before they become HMRC enquiries. The payroll health check is included at no additional charge for all new AccFirm payroll clients.
Switching Your Payroll to AccFirm
If you are currently managing payroll yourself using software, a spreadsheet, or a combination of both or have been using another firm whose service has not met your expectations, switching your payroll to AccFirm’s specialist payroll accountants in London is completely straightforward. We contact your existing payroll provider, transfer all employee records and historical payroll data, register AccFirm as your authorised HMRC payroll agent, and take over responsibility for all future payroll runs. There is no gap in your employees’ pay, no missed RTI submissions during the transition, and no disruption to your pension contributions.
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FAQs About Payroll Accountants in London
Do I need to register for PAYE as a London employer?
You must register as an employer and operate PAYE if any of the following apply to any worker you pay: they earn £123 or more per week (the Lower Earnings Limit for 2025/26); they receive expenses or benefits; they have another job; or they receive a pension. Registration must take place before your first payroll run you cannot pay an employee without a PAYE reference. AccFirm payroll accountants in London handle the complete PAYE registration process, including obtaining your employer PAYE reference and HMRC accounts office reference, setting up PAYE online, and configuring payroll software with your employer details. Even if your only employee is yourself as a limited company director, PAYE registration is required if you pay yourself a salary above the Lower Earnings Limit.
What is RTI and what happens if I submit it late?
Real Time Information (RTI) is HMRC’s system for receiving payroll information from employers in real time on or before every pay date. Every employer must submit a Full Payment Submission (FPS) to HMRC on or before each pay date, reporting every employee’s pay, Income Tax deduction, National Insurance, and other deductions. HMRC charges automatic late filing penalties for FPS returns submitted after the deadline ranging from £100 per month for employers with 1–9 employees to £400 per month for employers with 250 or more employees. Persistent late filing also increases your risk of a PAYE compliance audit. AccFirm payroll accountants have never submitted a late RTI return for any client.
What is auto-enrolment and does it apply to my business?
Auto-enrolment is the UK government’s workplace pension scheme, requiring every employer to automatically enrol eligible workers into a qualifying pension scheme and contribute a minimum of 3% of qualifying earnings as employer contributions. Eligible workers are those aged between 22 and State Pension Age who earn above the auto-enrolment earnings trigger (£10,000 per year for 2025/26). Total minimum contributions are 8% of qualifying earnings at least 3% from the employer and 5% from the employee. The Pensions Regulator (TPR) actively enforces auto-enrolment compliance and charges significant penalties for non-compliance, including escalating daily penalty notices. AccFirm payroll accounting services include full auto-enrolment management assessment, enrolment, contribution processing, employee communications, and triennial re-enrolment.
What are the statutory pay rates for 2025/26?
For 2025/26, the key statutory payment rates are: Statutory Sick Pay (SSP) is £116.75 per week, payable from the fourth qualifying day of sickness absence for up to 28 weeks. Statutory Maternity Pay (SMP) is 90% of average weekly earnings for the first six weeks, then the lower of £184.03 per week or 90% of average weekly earnings for the remaining 33 weeks. Statutory Paternity Pay (SPP) is the lower of £184.03 per week or 90% of average weekly earnings, payable for up to two weeks. Statutory Adoption Pay follows the same structure as SMP. AccFirm payroll accountants calculate all statutory payments correctly, advise on eligibility criteria, and claim the appropriate amounts from HMRC where recovery is available.
What payroll obligations does a limited company director have?
A limited company director who pays themselves a salary must register the company as an employer, operate PAYE, and submit RTI even if they are the sole director and only employee. Most AccFirm director clients pay themselves a salary at the National Insurance secondary threshold (£9,100 for 2025/26) which maintains state pension entitlement without triggering employer National Insurance, and which is low enough to preserve the Employment Allowance for companies with additional employees. Directors then extract the majority of their income as dividends from company profits after Corporation Tax, taking advantage of the lower dividend tax rates (8.75% at basic rate) compared to income tax on equivalent salary. AccFirm payroll accountants in London review and optimise this structure annually saving most director clients between £1,200 and £11,000 per year.
How does CIS payroll work for construction businesses?
The Construction Industry Scheme (CIS) requires contractors in the construction industry to deduct money from payments made to subcontractors and pass the deductions to HMRC as advance tax payments. The standard deduction rate is 20% for subcontractors who are registered with CIS and 30% for unregistered subcontractors. Contractors must verify subcontractors with HMRC before making any payment, deduct the correct CIS amount, provide a monthly deduction statement to each subcontractor, and file a monthly CIS return with HMRC by the 19th of each month. Importantly, CIS deductions suffered by your own business (when you act as a subcontractor) can be set off against your own PAYE and NI liability improving cashflow significantly for construction businesses. AccFirm payroll accountants manage the complete CIS payroll cycle for construction clients.
What is the Employment Allowance and can my business claim it?
The Employment Allowance allows eligible employers to reduce their employer National Insurance contributions by up to £5,000 per year. To be eligible, your total employer NI bill in the previous tax year must have been below £100,000. The allowance applies against employer Class 1 National Insurance on employees’ and directors’ salaries not against Class 1A NI on benefits. Limited companies where the sole employee is a director are not eligible unless they have at least one other employee. AccFirm claims the Employment Allowance automatically in the first EPS submission of every new tax year for all eligible payroll accounting services clients ensuring the maximum National Insurance saving is applied from day one of the tax year without any additional action required from you.
How much does a payroll accountant cost in London?
AccFirm payroll accounting services are available as part of a fixed monthly accounting package or as a standalone payroll engagement. Payroll fees depend on the number of employees, the pay frequency, and the complexity of your payroll (CIS, multiple pay rates, benefits in kind). AccFirm provides fixed monthly payroll fees with no per-payslip charges, no ad hoc billing for HMRC correspondence, and no unexpected year-end charges. Contact AccFirm for a free written quote based on your specific payroll requirements typically provided within 24 hours. All fees are agreed in writing before any work begins.