Document Retention Periods for Residential Builders in Australia

What it is

Document retention is the discipline of keeping the right business records for the right number of years and being able to find them when a regulator, court or client comes calling. For a residential builder in Australia the minimum retention period is not one number. It is a stack of overlapping statutory requirements from the ATO, ASIC, Fair Work, state building regulators and the limitation laws that set the deadline for a homeowner to sue.

The practical answer is to set the retention period for each document type to the longest applicable rule, then store records in a system you can actually search 10 years later.

ATO record keeping

Most business records must be kept for five years under the ATO record keeping rules. The five years generally starts from when the record was prepared or obtained, or when the transaction was completed, whichever is later. This covers:

• Invoices issued and received
• Bank statements and reconciliations
• BAS lodgments and working papers
• Wages and PAYG withholding records
• GST tax invoices and credit notes

There are exceptions. Records relating to depreciating assets must be kept for as long as the asset is held and then for five years after disposal. If a tax assessment is amended, the five year clock can restart from the amendment date.

Fair Work and employment records

Employers must keep employee records for seven years under the Fair Work Act 2009 and the Fair Work Regulations 2009. These records cover wages, hours, leave, superannuation contributions, written agreements and termination details. The seven year period is longer than the ATO requirement and is the operative number for any employment record.

ASIC and company records

A proprietary company must keep written financial records that correctly record and explain its transactions, financial position and performance for seven years after the transactions covered by the records are completed under section 286 of the Corporations Act 2001. Director resolutions, minutes and the register of members fall under the same regime and should be retained for the life of the company plus seven years.

State building Acts

State residential building legislation sets retention periods for the contract documents, plans, certificates and inspection records that prove a builder did the work correctly. For example, the Home Building Act 1989 (NSW) and the regulations under the Domestic Building Contracts Act 1995 (Vic) require builders to keep contract documents and supporting records for a minimum period that aligns with the relevant warranty exposure.

The safe default is to keep the full project file (contract, variations, plans, engineer certificates, certifier inspection reports, occupation certificate, defect correspondence and final invoice) for at least 10 years from practical completion.

Limitation periods drive the real retention number

Even after the ATO and Fair Work clocks expire, a homeowner can still sue. Limitation periods set the deadline for a claim to be filed in court and set the floor for how long the project file must survive.

Statutory warranty period

In New South Wales the statutory warranties under the Home Building Act 1989 run for six years from completion for a major defect and two years for any other defect. If a defect becomes apparent in the last six months of either period, the homeowner gets an extra six months to file. Other states have similar but not identical periods under their building Acts and the relevant Limitation of Actions Act.

Long stop period

Most states impose a long stop limitation on building actions. In Victoria, section 134 of the Building Act 1993 sets a 10 year long stop period from the date the occupancy permit was issued for the building work. Similar long stops apply in other jurisdictions, generally between 10 and 12 years from completion. No proceeding for building defects can be brought after the long stop expires.

Practical retention by document type

Combining these rules, a workable retention schedule for a residential builder looks like this:

• Tax and BAS records: minimum 5 years from lodgment
• Employee records: minimum 7 years from termination
• Company financial records and minutes: minimum 7 years from transaction
• Building contract files including plans, certificates and defect correspondence: minimum 10 years from occupation certificate or practical completion
• Insurance policies and claim files: minimum 10 years from policy expiry
• Director identification and ASIC filings: life of company plus 7 years

Storage and retrieval

Paper records degrade and disappear. Most builders now keep documents digitally with a backup and a clear folder structure indexed by job number. The ATO, ASIC and state regulators all accept electronic records provided they are true and clear copies of the original, are stored securely and can be accessed if requested. Build the system around how you would have to produce the file in a tribunal hearing nine years after completion, not just how easy it is to file today.