Payroll and Employment Cost Optimisation
Make Smart Hiring Decisions With Complete Employment Cost Clarity
Hiring your first employee is exciting but complex. Should you hire or subcontract? What will it really cost including National Insurance, pensions, and hidden employment expenses? At Finwave Accountants in Birmingham, we help you model employment costs before you commit, then handle all payroll processing, RTI submissions, pension auto-enrolment, and employee queries end-to-end. You get strategic guidance upfront and seamless execution ongoing, so you can focus on managing your team, not payroll admin.
Author and Technical Reviewer
Ussama Tiwana ACCA
Director Finwave Accountants
More details here
This page is reviewed regularly to ensure accuracy in line with UK laws and regulations. Last reviewed 18-Jan-2026
Our Payroll & Employment Services
Employment Cost Modelling
Before you hire, understand the true cost. We calculate total employment expenses including salary, employer National Insurance (now 15% from April 2025 on earnings over £5,000), pension contributions (minimum 3% of qualifying earnings), Employment Allowance eligibility (increased to £10,500 from April 2025), holiday pay accrual (12.07% for statutory minimum), and other benefits. We compare employee costs against contractor alternatives, showing you the financial and tax implications of each option. Armed with accurate projections, you'll hire confidently knowing exactly what your commitment entails.
Employee vs Contractor Guidance
The decision between hiring employees versus engaging contractors has significant financial, tax, and legal implications. We help you understand the differences: employees provide stability and commitment but involve ongoing costs regardless of workload, while contractors offer flexibility and specialist skills but at higher day rates without employment obligations. We assess your specific needs, consider IR35 implications for contractors, evaluate control and flexibility requirements, and recommend the optimal approach for your situation and budget.
Complete Payroll Processing
We handle your entire payroll operation from end to end including calculating gross-to-net pay, deducting income tax and National Insurance correctly, processing statutory payments (sick pay, maternity, paternity), managing pension auto-enrolment and contributions, submitting Real Time Information (RTI) to HMRC, producing payslips and payment schedules, and handling HMRC correspondence. Whether you employ one person or fifty, you'll never miss a deadline or make calculation errors. Your employees get paid accurately and on time, every time.
PAYE & RTI Compliance
We ensure full compliance with HMRC requirements through Real Time Information submission every pay period, PAYE tax code management and updates, National Insurance calculations (including the April 2025 rate increase), P11D benefits reporting annually, P60 year-end certificates, P45 forms when employees leave, and HMRC payment coordination. Our systems flag any issues before they become problems, and we maintain perfect records should HMRC ever enquire about your payroll.
Pension Auto-Enrolment
Workplace pension compliance is mandatory but complex. We manage your auto-enrolment obligations including assessing employee eligibility, enrolling employees into qualifying schemes, calculating and deducting contributions, submitting data to pension providers, managing opt-outs and re-enrolment, maintaining comprehensive records, and completing annual re-enrolment declarations. You'll meet all Pensions Regulator requirements without the administrative headaches.
Statutory Payments Management
We calculate and process all statutory payments accurately including Statutory Sick Pay (£118.75 per week from April 2025), Statutory Maternity Pay for up to 39 weeks during maternity leave, 90% of average earnings for first 6 weeks, then £187.18 (or 90% of average weekly earnings if lower) for the remaining 33 weeks), Statutory Paternity Pay, Statutory Adoption Pay, and Statutory Shared Parental Pay. We claim back eligible amounts from HMRC through your PAYE submissions, ensuring cash flow isn't unnecessarily impacted by statutory payments. HMRC guidance here and here.
Payroll Software Implementation
We implement and manage cloud payroll systems tailored to your business including selection of appropriate software (Xero, QuickBooks, Sage), configuration for your pay structure and benefits, integration with accounting systems, employee self-service portal setup, and training for you and your team. Modern payroll software automates calculations, maintains compliance, and gives employees direct access to payslips and tax information.
Employee Queries & Support
Your employees can contact us directly with payroll questions, removing this burden from your desk. We handle queries about pay calculations, tax code changes, pension contributions, statutory payments, P60s and P45s, and student loan deductions. Fast, professional responses keep your team informed and satisfied while freeing your time for strategic work.
What's Included
✓ Employment cost modelling and projections
✓ Employee vs contractor financial analysis
✓ Full payroll processing (weekly, monthly, or ad-hoc)
✓ RTI submissions to HMRC
✓ Pension auto-enrolment management
✓ Statutory payments calculation and processing
✓ P11D, P60, and P45 preparation
✓ Payroll software setup and training
✓ Employee self-service portal
✓ Direct employee query support
Payroll & Employment Questions Answered
Should I hire an employee or use a contractor?
The decision depends on your needs, budget, and control requirements. Employees provide continuity, loyalty, and integration into your team culture, but cost 20-30% more than salary alone once you factor in employer NI (now 15%), pension contributions, holiday pay, sick pay, and employment rights. Contractors offer specialist skills for projects, flexibility to scale up or down, and no ongoing obligations when work completes, but charge higher day rates (typically 30-50% more than equivalent employee salaries) and may fall under IR35 rules if the relationship looks like disguised employment. For ongoing work requiring consistency and company knowledge, employees usually make sense. For project work, specialist expertise, or variable workloads, contractors often prove more cost-effective. We model both scenarios with your actual numbers to show the financial comparison clearly.
What is the true cost of hiring an employee in the UK?
The true employment cost significantly exceeds the salary figure. On a £30,000 salary, total employer costs reach approximately £37,440 annually including gross salary £30,000, employer National Insurance £3,750 (15% on earnings over £5,000, though Employment Allowance may reduce this), minimum pension contributions is 3% of qualifying earnings, holiday pay accrual (factored into salary cost but representing 12.07% of working time), and potential costs for sick pay, recruitment, training, and equipment. As a rule of thumb, budget an additional 20-30% on top of the stated salary to cover total employment costs. We provide detailed breakdowns for your specific salary levels so you can budget accurately.
What is IR35 and does it affect my business?
IR35, officially the off-payroll working rules, determines whether contractors working through personal service companies should be taxed as employees. If HMRC deems a contractor is essentially an employee (based on control, substitution rights, and mutuality of obligation tests), you must deduct income tax and National Insurance as if they're employed, but they receive no employment rights. For public sector clients and medium/large private sector businesses, you must assess the contractor's status and make the determination. For small private sector clients, contractors self-determine but face investigation risk. Misclassifying risks back-taxes, penalties, and National Insurance bills. We help assess contractor relationships, review contracts, determine IR35 status, and structure arrangements to minimize risk while ensuring compliance.
How much does payroll outsourcing cost?
UK payroll outsourcing typically costs £4-£25 per employee per month for fully managed services, or £20-£50 monthly for a small team of five employees paid monthly. Setup fees may apply (usually £50-£200) and additional services like pensions administration might cost £2-£3 per employee monthly. These costs are far less than employing an in-house payroll specialist (£25,000-£35,000 annually), investing in payroll software, or risking penalties from payroll errors (£100-£3,000+ per mistake). For most small businesses, outsourcing provides better value, accuracy, and compliance than managing payroll in-house. We offer transparent fixed-fee monthly pricing based on your employee count and pay frequency.
What is the Employment Allowance and can I claim it?
Employment Allowance lets eligible employers reduce their employer National Insurance bill by up to £10,500 per year (increased from £5,000 in April 2025). Most small businesses qualify if your employer NI bill was under £100,000 in the previous tax year (this £100,000 limit was removed in April 2025, making more businesses eligible). You can't claim if you're a one-person company where you're the only employee and director. The allowance applies automatically once you claim it through your payroll software or RTI submission. For a business employing several people on modest salaries, this allowance can eliminate employer NI entirely. We ensure you claim it if eligible and maximize your benefit.
What are my obligations under pension auto-enrolment?
Every employer must automatically enrol eligible workers into a workplace pension scheme and contribute at least 3% of qualifying earnings (employees contribute minimum 5%, total 8%). Eligible workers are aged 22 to State Pension age earning over £10,000 annually. Your obligations include assessing eligibility every pay period, enrolling eligible workers within required timeframes, choosing a qualifying pension scheme, calculating and paying contributions, allowing workers to opt out (and re-enrolling them every three years), keeping comprehensive records, and registering with The Pensions Regulator. Non-compliance can result in escalating penalties from £400 to £10,000 depending on employer size and breach severity. We handle all auto-enrolment obligations ensuring full compliance with pension law. Pension Regulator guidance here.
How does Real Time Information (RTI) work?
Real Time Information requires employers to report payroll information to HMRC digitally each time employees are paid, usually through Full Payment Submission (FPS). The FPS includes employee pay, tax deducted, National Insurance, and other deductions. It must be submitted on or before the payment date. HMRC uses RTI data to update employee tax records in real-time, track benefit entitlement, verify tax credits, and monitor PAYE compliance. Late or missed RTI submissions trigger automatic penalties starting at £100 per month for businesses with 1-9 employees, rising to £400 for larger employers. Our payroll systems generate and submit RTI returns automatically before each pay date, ensuring you never face late filing penalties.
What statutory payments must I provide employees?
UK employers must provide several statutory payments when eligible conditions are met including Statutory Sick Pay £118.75 weekly for employees earning over £123 weekly who are sick for 4+ consecutive days, Statutory Maternity Pay up to 39 weeks (90% of average weekly earnings for first 6 weeks, then £184.03 weekly or 90% if lower for remaining 33 weeks), Statutory Paternity Pay 1-2 weeks at £187.18 weekly or 90% of average weekly earnings if lower, Statutory Adoption Pay (same rate as maternity pay), and Statutory Shared Parental Pay. Most employers can reclaim 92-103% of statutory payments from HMRC through reduced PAYE payments. We calculate all statutory payments correctly, ensure claims are processed, and manage the cash flow impact.
What payroll software should I use?
For UK small businesses, we recommend cloud-based payroll software including Xero Payroll, QuickBooks Payroll and Sage Payroll. Cloud software offers automatic tax table updates, RTI submission, pension integration, employee self-service, and collaboration with your accountant. We help you select appropriate software for your business size and requirements, handle implementation and configuration, train you and your team, and provide ongoing support.
How often should I run payroll?
UK businesses typically run payroll monthly, which reduces administrative burden and aligns with most employees' expectations for salaried positions. However, some businesses pay weekly (common in construction, hospitality, and manual labor), fortnightly (less common in UK but used by some retailers), or four-weekly (some public sector roles). Monthly payroll costs less to outsource (fewer payroll runs annually), reduces administrative time, and simplifies cash flow planning. Weekly payroll provides more regular income for employees (particularly helpful for lower-paid workers), better reflects variable hours for hourly workers, and helps with cash flow for workers living week-to-week. Most small businesses find monthly payroll most practical unless industry norms or employee preferences dictate otherwise.
The content on this website is provided for general information only and does not constitute professional, financial, tax, or legal advice. No action should be taken or omitted based on this information without seeking appropriate professional advice tailored to your specific circumstances.
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Stop worrying about employment costs and payroll compliance. Book a free consultation and discover how we make hiring straightforward and stress-free.
Call: 0121 630 6307
Email: info@finwavefirm.co.uk