Outsourcing for accountants that gives your practice room to grow, without the overhead.
APEX KPO Services is a dedicated outsourced accounting partner to UK and US accountancy practices, delivering review-ready bookkeeping, tax preparation, payroll and year-end accounts, so your team can take on more clients without adding headcount.
Request a Free Capacity Review
Tell us about your practice. A senior advisor will reply within one business day.
What is outsourcing for accountants?
Outsourcing for accountants means handing routine compliance work, such as bookkeeping, VAT returns, tax returns, payroll and year-end accounts, to a dedicated external team that works inside your software and to your standards. Your practice keeps the client relationship and final sign-off. APEX KPO Services supports 60+ UK and US practices, with every file second-reviewed and onboarding in 2–3 weeks.
Last reviewed: by the APEX KPO Services team
Outsourced services built around your practice
Every engagement is staffed by qualified, practice-trained accountants working as an extension of your in-house team.
Bookkeeping
Ongoing bookkeeping in Xero, QuickBooks, Sage or FreeAgent, reconciled and reviewed before it reaches your desk.
Outsourced bookkeeping services →VAT & MTD Compliance
Quarterly VAT returns, partial exemption and flat-rate scheme calculations, prepared in line with HMRC and MTD.
VAT return services →MTD ITSA & Corporation Tax
Personal tax (self-assessment / MTD ITSA) and company tax (CT600) return preparation, ready for your review.
Self assessment & corporation tax →US Tax Preparation
Individual (1040) and business (1120/1065) return preparation support for CPA firms, ready for e-file.
US tax preparation →Payroll Processing
End-to-end payroll runs, RTI submissions and payslip management, processed accurately every period.
Outsourced payroll services →Year-End Accounts
Statutory and management accounts preparation and file-ready packs so partners can focus on review.
Year-end accounts service →Management Reporting
Monthly management accounts, cash flow summaries and KPI packs for your clients and your firm.
Management accounts services →Not sure which fits?
Answer four quick questions and get a tailored service recommendation in under a minute.
Take the fit quizUK and US bookkeeping, accounting & tax software we work in every day
XeroCertified Advisor
QuickBooks OnlineProAdvisor Certified
FreeAgentCertified Partner
Sage Business CloudBusiness Partner
IRISPractice Software
TaxCalcTax Software
TaxDomePractice Management
RipplingPayroll & HR
LacerteTax Software
KarbonPractice Management
GustoPayroll & Benefits
Financial CentsPractice Management
DrakeTax SoftwareXeroCertified AdvisorQuickBooks OnlineProAdvisor CertifiedFreeAgentCertified PartnerSage Business CloudBusiness PartnerIRISPractice SoftwareTaxCalcTax SoftwareTaxDomePractice ManagementRipplingPayroll & HRLacerteTax SoftwareKarbonPractice ManagementGustoPayroll & BenefitsFinancial CentsPractice ManagementDrakeTax SoftwareA quality-first alternative to hiring
Apex KPO Services was founded in 2024 by a small group of UK- and US-trained accountants who kept watching practices either burn out their best staff during busy season or turn down good clients for lack of capacity. We built the firm we wished we could have outsourced to: qualified people, transparent pricing, and no minimum contract dressed up as a "partnership." Today we work as an embedded extension of accountancy and CPA practices on both sides of the Atlantic, not a faceless back office.
- 1
Qualified, dedicated staff
Your work is handled by trained accountants (ACCA / CA-qualified or part-qualified), not general data-entry operators.
- 2
Built-in quality review
Every file passes through a second-level review before it reaches you.
- 3
UK & US working hours overlap
Our teams overlap with GMT and EST/PST, so you're never waiting until tomorrow.
- 4
Scales with your practice
Add capacity during busy season and scale back afterwards, with no recruitment cycles.
- 5
Confidentiality-first data handling
Encrypted file transfer and access controls built around client confidentiality from day one, not bolted on afterwards.
- 6
Transparent, no-lock-in pricing
Three simple pricing models, quoted after a discovery call, with no hidden setup fees and no long lock-in contracts.
Our first instinct wasn't to outsource, but the file quality and turnaround from Apex changed our minds within one busy season.
Trusted by accountancy practices
"Apex freed up two full days a week for our partners during tax season. Turnaround and accuracy have been consistent since day one."
"We were hesitant about outsourcing tax prep, but the review-ready files and communication have been better than some in-house hires."
"Onboarding took under three weeks. Their team adapted to our exact workflow instead of asking us to adapt to theirs."
Guides for UK accountancy practices
Ready to give your practice room to grow?
Book a free, no-obligation capacity review and see where outsourcing could save your team the most time.
Book a Free Consultation