Changing Accounting Software in the UAE? Protect Your Tax Records Before You Move

Your new dashboard looks better. Can you still find last year’s invoice?

A business changes accounting software to gain better reporting, automate work or prepare for new invoicing processes.

The implementation appears successful. Opening balances agree, employees can raise invoices and management receives a cleaner dashboard.

Then an old transaction needs investigation.

The ledger entry is available, but its invoice attachment is missing. Customer allocations were not transferred. The employee who managed the old system has left.

This is why accounting software migration in the UAE should include a separate plan for historical records.

The FTA’s legislation register includes Decision No. 4 of 2026 concerning information maintained in accounting records and commercial books. The developing e-invoicing programme also makes this a timely operational topic for businesses reviewing their systems. 

The controls below are practical migration recommendations. They are not a claim that every business must migrate software or follow one prescribed technical method.

Define what “successful migration” means

Do not measure success only by whether the new system opens.

Agree measurable acceptance criteria before transferring data. These should cover balances, transaction detail, document access and the ability to explain historical entries.

For example, management may require agreement of the trial balance, customer and supplier balances, bank reconciliations and inventory totals where relevant.

Also require a successful retrieval test: can finance locate an old invoice and explain how it connects to payment and reporting records?

This broadens the project from a software installation into a controlled transfer of financial information.

Inventory records before exporting them

List what exists in the old environment.

Go beyond the general ledger. Consider customer invoices, supplier bills, credit notes, journal support, bank statements, reconciliations, fixed-asset schedules and relevant approval records.

Identify attachments held outside the accounting application. Some may sit in shared drives, email folders or document-management tools.

Record who owns each dataset, its date range and how it can be exported.

This exercise often reveals information that no one included in the original migration quotation. Discovering it early gives the business time to agree a solution before access to the old system ends.

Choose what moves and what remains archived

Not every historical record must necessarily be imported into the new application.

Depending on business needs and applicable obligations, a practical design may combine opening balances and active transactions in the new system with an accessible archive of older information.

The archive should be organised, readable and connected to the relevant accounting references.

Make the decision deliberately. A folder containing hundreds of unexplained exports is not the same as a usable archive.

Ask how finance will search by invoice number, customer, supplier, date and transaction value.

Reconcile before and after migration

Take an approved snapshot of the old records at the agreed cutoff.

Then compare the migrated information with that snapshot.

Review totals and detailed balances. A matching trial balance does not prove that every customer invoice was allocated correctly or that every attachment survived.

Check selected transactions from beginning to end. For a customer invoice, inspect the original amount, credits, receipts and outstanding balance.

Where differences arise, record their cause and approved resolution. Avoid inserting unexplained balancing journals simply to make the new system agree.

Protect the connections between records

Historical accounting information is useful because its records connect.

An invoice connects to a customer. A receipt settles that invoice. A credit note adjusts it. A bank reconciliation links the payment to the bank statement.

Migration can preserve the amounts while losing those relationships.

Test whether references remain available even if the new system represents them differently. Where links cannot be recreated, keep a documented lookup method.

The goal is to preserve an understandable trail, so a future reviewer does not need the implementation consultant to reconstruct every transaction.

Run a realistic retrieval exercise

Before ending the old subscription, ask someone outside the migration team to retrieve a sample of records.

Choose different periods, document types and transaction values. Include at least one adjusted invoice and one transaction with several supporting attachments.

Ask the reviewer to explain the transaction using only the information available in the new system and archive.

Time the exercise and record any gaps.

If a routine document takes half an hour to locate, improve the naming, indexing or access arrangements before approving the project.

Check access, backups and responsibility

A historical archive needs an owner.

Decide who can view records, who can change them and who manages access when employees leave. Limit unnecessary editing rights.

Confirm how backups work and test that information can be restored. The existence of a backup schedule does not demonstrate that a restoration will succeed.

Also review dependence on the previous software provider. An export that requires an expired licence or unavailable application may be difficult to use later.

Confirm applicable record-retention requirements with your adviser before deleting information or cancelling access.

Use a controlled cutover

Set a clear date and time for switching systems.

Tell employees where to enter new transactions and how to handle documents arriving late. Uncontrolled parallel entry can create duplicates or leave transactions in neither system.

Keep a cutover issue log, with owners and resolution dates.

Retain rollback arrangements until the agreed checks are complete. Management sign-off should confirm both operational readiness and preservation of the historical records.

A clean migration leaves the business able to work today and explain what happened yesterday.