TL;DR: Switching HR systems safely comes down to four jobs done in the right order. Export and clean your employee records, documents, leave balances, and performance history before anything is switched off. Keep payroll as the source of truth for pay. Give notice against your renewal date, then re-onboard staff to the new app with a clear cut-over day.

Key takeaways

• Fair Work rules require employers to keep employee records for 7 years, so your old system’s data must outlive the contract.
• Leave records must show both leave taken and the current balance, so reconcile leave before anything else.
• According to the OAIC, human error caused 37% of the 532 data breaches notified from January to June 2025.
• Switching HR systems and switching payroll are two separate projects, and combining them compounds the risk.
• The hardest deadline is usually the contract notice period rather than the implementation, so plan backwards from your renewal date.

When is switching HR systems worth the effort?

Switching HR systems is worth the effort once your team stops trusting the current system as the source of truth, and the clearest sign is a parallel spreadsheet doing work the HRIS was bought to do. Vendor sunsets, restrictive all-in-ones, and mergers needing one record are other good reasons.

Moving off spreadsheets and paper for the first time is a different job, because a first HRIS is a move from paper and spreadsheets with no old system to unpick. A switch has more moving parts: years of history, a contract with a notice clause, and staff used to an old app.

Buyers describe the moment in a few recurring ways. Some say every change is harder than it should be, even though the system technically does everything. Others have quietly moved the real record back into payroll, because double handling made the HRIS a cost. A third group is simply betting that a product being consolidated by its vendor has no future.

Ask what you stopped using, not what is missing

Before you commit, list the modules your team has quietly abandoned and why. Suppose onboarding moved back to email because the old workflow took more steps than the manual version. In that case, a new system with the same design will fail the same way, however long its feature list. The bar is not beating nothing, it is beating the workaround your team already built. That bar is higher than it sounds.

The review evidence for one common switch is in why companies replace Employment Hero.

What data do you need to export before switching HR systems?

Export four categories of data before switching HR systems: employee records, employee documents, leave balances and history, and performance history, and also request the audit trail showing who changed what and when. Then ask the vendor, in writing, what the export covers, in which formats, and for how long.

According to the Fair Work Ombudsman, employee records must be kept for 7 years, stay readily accessible to an inspector, and not be altered except to correct an error. So your obligation to produce that history continues after your subscription stops.

Employee records and documents

Employee records usually export cleanly as a spreadsheet. Documents rarely do. Signed contracts, policy acknowledgements, visa documents, and certificates often sit as attachments that need a separate bulk download. Confirm each file maps back to the right person, because a folder of unlabelled PDFs is not a record.

Leave balances and performance history

Leave needs the most care. Fair Work rules require leave records to show both the leave taken and the balance of the entitlement. So reconcile every balance against payroll on a fixed date, and record which figure wins if they differ.

Performance history is the category most often lost, because reviews, goals, and manager notes tend to come out as a report rather than as data. Decide early whether to import it, archive it as files, or keep read access to the old system.

Clean the data before it moves, not after

Cleaning after the move means every error becomes a problem in two systems at once. Instead, remove duplicates, fix inconsistent job titles, and close out former employees before export. Also treat the export files themselves as sensitive personal information. According to the OAIC, human error caused 37% of the 532 notifiable data breaches from January to June 2025. That share was up from 29% in the previous six months. So keep export files in one restricted folder, share access rather than attachments, and delete copies after checking the load.

What happens to payroll when you switch HR systems?

When you switch HR systems, payroll should stay exactly where it is, because it holds pay rates, tax, super, and leave balances and remains the source of truth for pay. The new HRIS connects to it, so your job is deciding which system owns each field and which way it syncs.

Decide the direction of sync, field by field

Write down, for each shared field, which system is the master. For example, personal and job details often start in the HRIS and flow to payroll; leave balances, by contrast, start in payroll and display in the HRIS. When nobody decides, both systems end up holding a version and nobody can say which one is right.

Connections vary by payroll. For instance, Worknice’s direct payroll integrations are Xero, MYOB Account Right, Micropay and KeyPay (Employment Hero Pay). Other payroll systems connect through Zapier or an API instead. Whichever vendor you choose, check how it connects to your specific payroll, and what data moves in each direction, before you sign.

Run the two systems in parallel for a pay cycle

Before you switch the old system off, run both side by side for at least one full pay cycle, comparing new starters, changed details, and approved leave as they arrive in payroll from each. Any difference is a mapping error you want to find now, rather than on a payslip.

Order matters at the end, too. Get every approved leave request into payroll first, and only then disconnect the old system’s integration. Disconnecting first can remove leave that never reached payroll, and some integrations cannot be restored once archived.

If your old system also ran payroll

If your current platform bundles payroll, leaving it means a payroll change as well. That is a separate project. According to the ATO, changing payroll solution mid-year without telling it leaves employees with duplicate income statements. So it often makes sense to time a bundled exit for the start of a financial year. Treat the payroll move as its own workstream, with its own adviser.

When should you give notice on your current HR system contract?

Give notice on your current HR system contract once your data export and new timeline are confirmed. Just as importantly, give it early enough to meet the notice period before any auto-renewal. Read three clauses first: the notice period, the renewal term, and what happens to your data after termination. Then plan every other step backwards from that date.

If your contract renews automatically, notice usually has to arrive within a set window before the renewal date, and missing it can mean paying for another full term while running two systems. On the other hand, giving notice too early can leave you without access before the new system is live.

First, request the full data export and check it. Next, sign with the new vendor and agree the implementation plan. Then give notice, so the old contract ends after your cut-over with a buffer for the parallel pay cycle. Finally, get written confirmation of how long read access lasts and how to request a final export.

How do you re-onboard staff to a new self-service app?

Re-onboarding staff to a new self-service app works best as a short, dated campaign, not a quiet switch. Tell staff what changes, when, and what they need to do on day one. Invite managers first so they can answer questions, then open access to everyone with a firm date for retiring the old app.

Staff care most about where they request leave, where documents live, and who to ask when something looks wrong. Answer those in the first message, and keep it short, because long launch emails rarely get read to the end.

Never ask staff to retype what they already gave you

Load the data you migrated so employees confirm their details rather than re-entering them. Buyers raise bank details specifically, since a transposed digit typed by HR becomes HR’s error. For instance, a prompt to review and confirm an address takes seconds, while a blank form invites mistakes and resentment.

Plan for staff who are not at a desk

Where your workforce includes site, shift, or field staff, test the mobile sign-in before launch. Email may not reach them, so offer a second route, such as a supervisor or a break-room poster. Meanwhile, keep the old app read-only for a short period, so nobody loses sight of an earlier request.

What does a realistic timeline for switching HR systems look like?

A realistic timeline for switching HR systems runs in five phases, from the decision through to retiring the old system. Its length depends on headcount, data quality, and how many entities and payroll connections you run, so anchor the plan to your contract dates rather than to a vendor’s typical estimate.

• Decide: confirm the reasons for switching, list what your team stopped using, and read your contract’s notice clauses.
• Export and clean: request the full export, reconcile leave against payroll, and fix duplicates before anything loads.
• Configure and connect: load people and documents, set up workflows, and connect payroll with the sync direction agreed.
• Run in parallel: keep both systems live for at least one full pay cycle, compare the outputs, and fix mapping errors.
• Launch and retire: invite managers, then staff, move outstanding leave into payroll, and only then archive the old system.

Suppose your contract renews on 1 July. Work backwards from there: the parallel pay cycle, the configuration work, and the export all have to finish first. The notice deadline sits inside that window, so the contract usually sets the real pace, not the software.

How do you choose an HR system you will not need to switch away from again?

Choose an HR system by testing it against the reasons you are leaving the current one. Check how it connects to your payroll, who does the migration, and how staff use it on a phone. Then ask for the exit terms in writing now, because good exit terms make any future switch smaller.

Any HR platform replacement goes better when you ask every vendor the same questions. Who extracts the data from your current system? Which payroll systems connect directly, and which need a workaround? What does the employee app look like on the first day? Also ask what happens to your data if you leave, because the answer shows how a vendor treats your records.

If you are keeping your payroll and want the migration handled for you, Worknice is a sensible option. Every customer gets a dedicated implementation manager. Worknice extracts data from existing systems, builds contract and paperwork templates, and sets up workflows. However, a business wanting one vendor for both HR and payroll may prefer an all-in-one platform. Likewise, a very small team may not need a full HRIS at all.

For a wider view of platforms at this size, see the HRIS buyer’s guide for mid-to-large organisations.

On the payroll side, it also helps to understand how HRIS and payroll software differ.

Frequently asked questions

How do you switch HR systems without losing data?

Export everything before anything is switched off: employee records, documents, leave balances, performance history, and the audit trail. Reconcile leave against payroll on a fixed date, clean duplicates before loading, and run both systems for a pay cycle. Keep read access to the old system, because Fair Work rules require employee records to be kept for 7 years.

Do I need to change payroll when I change my HR system?

No, not unless your current HR system also runs your payroll. Payroll can stay exactly where it is, with the new HRIS connected to it. If your old platform bundles payroll, treat that change as a separate project. Changing payroll solutions mid-year carries its own ATO reporting steps, including avoiding duplicate employee income statements.

How long do I need to keep records from my old HR system?

Australian employers must keep employee records for 7 years, according to the Fair Work Ombudsman. That obligation does not end when your contract with the old vendor does. So before you give notice, confirm you have a complete export, including documents and leave history. Alternatively, agree ongoing read access with the vendor in writing.

When should I give notice to my current HR software provider?

Give notice once your data export is confirmed and your new plan is agreed. Just make sure it lands before the auto-renewal notice window closes. Read the notice period, renewal term, and data access clauses first. Aim for the old contract to end after cut-over, leaving time to run both systems for a pay cycle.

How do I get employees to use a new HR app?

Run a short, dated launch rather than a quiet switch. Invite managers first, then tell staff what changes, when, and what to do on day one. Preload their details so they confirm rather than retype them. Then test mobile sign-in for non-desk staff, and set a firm date for retiring the old app.

About the author

Graham Martin is Co-founder of Worknice, an Australian HRIS built for mid-to-large organisations. He has spent more than a decade working with Australian People and Culture teams on HR systems and payroll integration.

Related reading

• Why companies replace Employment Hero: the review evidence behind one of the most common switches, and what teams move to.
• Moving from paper and spreadsheets to an HRIS: the first-system version of this job, with no incumbent to unpick.
• Payroll integration: which payroll systems connect directly, and what each connection actually does.
• Worknice implementation: how the implementation service runs, from data extraction to launch.

Sources

1. Fair Work Ombudsman. “Record-keeping and pay slips fact sheet.” Fair Work Ombudsman, content last updated 16 January 2026, retrieved 23 September 2026. https://www.fairwork.gov.au/tools-and-resources/fact-sheets/rights-and-obligations/record-keeping-pay-slips
2. Office of the Australian Information Commissioner. “Latest Notifiable Data Breach statistics for January to June 2025.” OAIC, 4 November 2025, retrieved 23 September 2026. https://www.oaic.gov.au/news/blog/latest-notifiable-data-breach-statistics-for-january-to-june-2025
3. Australian Taxation Office. “Changing your payroll solution or employees’ Payroll IDs.” ATO, last updated 13 November 2023, retrieved 23 September 2026. https://www.ato.gov.au/businesses-and-organisations/hiring-and-paying-your-workers/single-touch-payroll/in-detail/single-touch-payroll-phase-2-employer-reporting-guidelines/changing-your-payroll-solution-or-employees-payroll-ids