Payroll Software or an Accountant? choose the operating model
Compare self-run payroll software with a payroll provider or accountant by workload, controls, data ownership and the employer’s continuing legal responsibility.
Written by Daniel, peer-reviewed by Sarah
Last reviewed:
Published:
Who this is for: UK founders with a new or growing payroll who need to choose a delivery model without relying on generic product comparisons or assuming that outsourcing removes employer duties.
The short answer
The decision is about operating control, not just software cost
GOV.UK sets out two main routes: pay a payroll provider to operate PAYE or run payroll yourself using payroll software. A provider can offer different levels of support, potentially including records, payslips and HMRC payments. But the employer must still collect and keep the right employee information and remains legally responsible for PAYE tasks. The core question is who performs each action and who checks that it was completed correctly and on time.
Self-run payroll can suit a simple, stable setup where a named person has the time and competence to maintain data, review outputs and keep up with changes. Provider support can suit a founder who needs specialist operational help, has more complex pay or benefits, or wants a second set of process controls. Neither option fixes unclear worker status, missing starter data or cash that is not available for payroll and tax.
Define the minimum workflow before comparing options
GOV.UK’s payroll setup sequence includes employer registration and PAYE Online, employee records, employee notification to HMRC, pay and deduction calculations, reporting to HMRC on or before payday, and payment of what is owed. Use this as the checklist for any operating model. The decision should not be based solely on whether a tool produces payslips or a provider sends a reminder.
Write down the current workforce needs: number of people, regular and variable pay frequencies, statutory-pay events, pension deductions, any benefits, new starters, leavers, approvals, accounting integration and the reporting calendar. These facts determine the controls needed. Check current requirements directly; do not infer that a feature is included from a product name or a marketing comparison.
If you run payroll yourself, test the feature and review gap
GOV.UK says self-run payroll requires software that reports PAYE information online unless the employer is exempt. Its software page identifies features that can vary: payslips, pension deductions and payments, different pay periods, Employer Payment Summary reporting and Earlier Year Updates. HMRC recognises software but does not recommend one product or service over another.
Set up a test before the first live payroll. Confirm who enters employee changes, who reviews gross pay and deductions, how payroll reports are checked before submission, how the payroll file is retained and how an error would be corrected. If no one can own these controls during absence, the business has an operating risk even if the software is technically capable.
If you outsource, retain visibility and payment authority
Agree a written service scope: what data you provide, cut-off times, who checks draft payroll, who submits to HMRC, who makes the HMRC and pension payments, how notices are handled, and how changes or corrections are approved. Ensure the business can access payroll records, reports and key account credentials, rather than relying on one person’s inbox.
Outsourcing does not remove the need to fund payroll, tax and pension contributions. Put every relevant deadline into the cash forecast and compare the payroll report with approved pay data before authorising money to leave the bank. The employer should be able to explain what was paid, why and when, even where a provider calculated it.
Design the hand-off and recovery process
The choice is not simply software versus an accountant. Define who owns employee data, approvals, payroll submission, pension files, HMRC payments, corrections and year-end records, and set a deadline before payday for each hand-off.
Test what happens when the usual operator is absent, a submission is rejected or a late change arrives. The business should retain access to records and be able to identify the last successful submission without depending on one person’s inbox.
Review the arrangement after the workforce, pay types or statutory obligations change. Software may reduce routine cost but still require skilled review; an accountant may add control but cannot replace timely, accurate source data.
Worked example: Illustrative ownership matrix
- Employee details and changes
- Employer collects and approves; provider or software records them
- Draft payroll review
- Named employer reviewer checks against approved pay, starters, leavers and absences
- HMRC reporting
- Agree who submits and how the employer confirms it was accepted on or before payday
- HMRC and pension payments
- Employer keeps cash control and confirms payment dates, even if a provider supports the process
- Records and notices
- Employer retains access and a named owner monitors queries, reports and HMRC communications
Illustration only. Service contracts and payroll facts differ. Confirm responsibilities and current HMRC requirements before the first live run.
What to do, in order
- 1
Map the payroll workflow
List data, approvals, calculations, reports, payments, pensions, records and exception handling from starter to year end.
- 2
Assess internal capacity
Identify a trained owner and reviewer, cover for absence, data-security controls and time available around each pay date.
- 3
Set a feature or service specification
Use the real workforce requirements—not a generic checklist—to test software or provider scope.
- 4
Agree responsibility in writing
Document cut-offs, submission authority, payment authority, pension hand-offs, corrections, records and access rights.
- 5
Test and review the first runs
Compare payroll outputs with approved inputs and verify the report, payment and evidence sequence before treating the routine as stable.
Common mistakes
- Assuming an accountant or payroll bureau takes over the employer’s legal PAYE responsibilities.
- Choosing software without checking whether it supports the business’s required pension, pay-frequency and reporting workflow.
- Giving a provider data but retaining no internal reviewer or documented approval process.
- Allowing a third party to hold the only accessible payroll records or credentials.
- Treating the payroll calculation as the only cash commitment and forgetting HMRC and pension payment dates.
If you only have five minutes
Important
Frequently asked questions
- Can an accountant run my payroll?
- Yes. GOV.UK says an employer can pay a payroll provider such as a bureau or accountant to operate PAYE, but the employer remains legally responsible for PAYE tasks.
- Do I need payroll software if I run payroll myself?
- GOV.UK says you need software that reports PAYE information online unless you are exempt. Check the current software requirements and feature coverage.
- Does outsourced payroll include pension duties?
- It depends on the provider’s agreed service. Define the pension setup, assessment, contribution and communication responsibilities in writing; the employer retains legal responsibility.
- Who should pay HMRC and pension contributions?
- Agree and document the payment authority and schedule. The employer should retain visibility of required payments and ensure cleared cash is available by each deadline.
Sources
Who wrote and checked this
Written by Daniel Mercer, who has run the numbers on his own small business and writes from that experience. Daniel is not an accountant or a regulated financial adviser. Who writes this site.
Peer reviewed by Sarah Chen, Chartered Accountant (FCA). Peer reviewers check for technical accuracy and compliance with current UK regulations.
Last reviewed: 25 August 2026
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