Entering the payroll software market means clearing HMRC, pensions and data hurdles first

Entering payroll software is not simply a calculation project. The product sits inside recurring employer reporting, workplace pension processes and the handling of sensitive staff records. Complete this checklist against one defined customer segment before widening the offer.

Customer and workflow

• Name the first buyer, user and approver separately.
• Record supported employer sizes, pay frequencies and worker situations.
• Draw the path from approved input through calculation, submission, payment and correction.
• List every manual hand-off and late-data scenario.
• Exclude unsupported territories, sectors and employment arrangements explicitly.

Do not call a feature universal because it worked for one monthly salaried payroll. Test weekly, irregular and leaver cases relevant to the chosen segment.

HMRC reporting and change control

• Map Full Payment Submission and Employer Payment Summary fields in scope.
• Test reports against the applicable HMRC technical specification.
• Establish a release process for each tax year and in-year change.
• Preserve submission acknowledgements, errors and correction history.
• Decide whether to apply for PAYE software recognition.

HMRC's developer recognition guidance says a product should have completed development and testing before applying. Recognition covers stated technical specifications and leads to listing if successful. It must not be marketed as HMRC approval of the wider service.

Employers normally report pay and deductions on or before payday. Use the current payroll reporting guidance for field and timing requirements, then retain dated test evidence.

Workplace pensions

• Confirm which automatic enrolment assessments the product performs.
• Test contribution calculations and the pension scheme's tax-relief method.
• Validate pension-provider data formats and rejection handling.
• Support join, opt-in, opt-out and re-enrolment records where promised.
• Make unsupported communications or decisions clear.

The Pensions Regulator's software checklist stresses current staff records, compatible data transfer and correct tax-relief setup. Product testing should cover these operational links, not just a deduction field.

Personal data and security

• Identify controller, processor and sub-processor roles for each service.
• Document lawful instructions, contracts, retention and deletion.
• Apply least-privilege access and strong administrator authentication.
• Encrypt transfers and protect stored payroll records.
• Rehearse backup restoration, incident response and customer notification.

The ICO explains in its controller and processor guidance that roles and responsibilities depend on real decision-making. Do not rely on a contractual label that contradicts how the service operates.

Migration, support and claims

• Reconcile year-to-date values before the first live run.
• Preserve employee identities and test changed payroll IDs.
• Define support hours around customer paydays and filing deadlines.
• Publish service status, escalation and correction routes.
• Substantiate every claim about savings, accuracy and compliance.

Run parallel payrolls with a small, representative pilot group. Record defects, staff time and interventions. Launch only when the evidence shows that ordinary users can finish the entire supported workflow and recover safely when something goes wrong.

Commercial readiness

• Calculate support and implementation cost from observed pilot work.
• Define the chargeable unit and rules for inactive employees or extra runs.
• Separate software access from managed services in the order form.
• Establish cancellation, data-export and account-closure procedures.
• Check insurance, supplier dependencies and financial runway against the promised service.

Approve entry through named gates for product, tax, pensions, privacy, security, support and finance. A founder's confidence should not substitute for a recorded owner, dated evidence and an unresolved-issue log. Reopen the checklist before each tax year and material platform change.