TPAR for Builders: What You Need to Report and How to Get It Done

Meta description: Building contractor? Here's exactly what you need to report in your TPAR, which subcontractors count, and the simplest way to collect their details before 28 August.

Target keyword: TPAR for builders
Secondary keywords: builder TPAR subcontractors, building industry taxable payments report, TPAR construction Australia
Image: https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1200&q=80 (construction worker on site)

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Building businesses were among the first industries required to lodge a Taxable Payments Annual Report, and they remain one of the highest-risk categories for ATO enforcement. If you run a building company, you're almost certainly required to lodge — but the rules around what to include, who counts as a contractor, and how to collect the data aren't always clear.

Here's what you need to know.

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Does my building business need to lodge a TPAR?

If your business is primarily involved in building or construction services, and you paid subcontractors during the financial year, yes.

The building and construction industry covers:

• General building and construction
• Electrical work
• Plumbing and gas fitting
• Carpentry and joinery
• Concreting
• Roofing
• Tiling (floor and wall)
• Landscaping and gardening (where the primary service is construction-related)
• Plastering and rendering
• Painting
• Bricklaying

The threshold: If contractor payments make up less than 10% of your total payments for building services in a year, you may not need to lodge. Most builders exceed this threshold.

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Who counts as a "contractor" for TPAR?

A contractor is anyone you paid for services under a contract, rather than an employee on your payroll. This includes:

• Sole traders — the most common. Individual tradies with an ABN.
• Companies — building companies you subcontracted work to.
• Partnerships — two or more people trading together.

It does NOT include:

• Employees — wages are reported separately via STP (Single Touch Payroll), not TPAR.
• Workers from labour hire firms — the labour hire firm lodges TPAR for their workers, not you.
• Suppliers of materials — if you bought materials from a business, that's a product purchase, not a contractor payment.

Grey area: labour + materials If a subcontractor invoiced you for both labour and materials in the same invoice, you need to report the full amount — including the materials component. The exception is if the contract clearly separates the two and the materials are the dominant component. When in doubt, report the full amount.

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What do I need to report for each subcontractor?

For every contractor you paid during the financial year (1 July to 30 June):

| Required detail | Notes | |----------------|-------| | ABN | Must be valid and match the contractor's registered details | | Business or individual name | Use legal name, not trading name | | Address | Registered business address or home address | | Total gross amount paid | Including GST | | GST withheld | Usually $0 unless you applied no-ABN withholding |

The most common issue for builders: subbies who work under a trading name but their ABN is registered under their personal name (e.g., "Dave's Concreting" is actually registered as "David James Smith"). The ATO matches ABN against name — use the registered name, not the trading name.

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The data collection problem

For builders with a small number of subbies, collecting this information is manageable. For builders who use dozens of contractors across multiple projects in a year, it becomes a significant administrative task.

Common pain points:

• Subbies invoice under a trading name but registered under a different legal name
• Sole traders change address frequently and don't update their ABN registration
• Subbies don't respond to requests for details during or after the job
• Cash payments with no formal invoice trail

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Practical tips for building businesses

1. Collect ABNs before the first payment Make it a condition of engagement — you won't process payment without a tax invoice including ABN. Most subbies are used to this.

2. Keep a subcontractor register A simple spreadsheet with columns for name, ABN, address, and running total paid. Update it when you pay each invoice. Takes 2 minutes per payment, saves hours in August.

3. Validate ABNs early Use abn.business.gov.au to check each ABN before you lodge. An invalid ABN causes your entire TPAR submission to fail.

4. Send a link rather than chasing by email SubbieLodge lets you send subbies a link to fill in their own details. They enter their ABN, name, and address — it's validated on the spot. You download the ATO-format CSV when you're ready to lodge. $99/year.

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How to lodge as a builder

Once you have your subcontractor details:

Option 1 — ATO Online Services (free) Log in with myGovID at business.ato.gov.au, navigate to TPAR, and either enter manually or upload a CSV.

Option 2 — Via your BAS agent If you use a registered BAS agent, they can lodge on your behalf. You provide the subcontractor data; they handle the submission. Typical cost: $150–$300.

Option 3 — Accounting software Xero, MYOB, and QuickBooks all support direct TPAR lodgement if you track payments through the software.

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Key dates for 2026

| Date | What happens | |------|-------------| | 1 July 2026 | 2025–26 financial year ends — start compiling your subcontractor list | | August 2026 | Start collecting any outstanding details from subbies | | 28 August 2026 | TPAR deadline — lodge by this date | | 29 August onwards | FTL penalties start accruing ($313 per 28-day period for small businesses) |

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Summary

Building businesses are one of the most scrutinised industries for TPAR compliance. If you pay subbies, you almost certainly need to lodge.

The lodgement itself is straightforward once you have the data. The challenge is collecting clean, verified subcontractor details before the deadline. Start in July, not August — and collect ABNs at the start of every engagement, not at the end of the year.