Running a carpentry business in Geelong means juggling job quotes, material costs, subcontractor payments, and the ever-present ATO deadlines. Whether you're fitting out new homes in Armstrong Creek or renovating weatherboards in Newtown, solid bookkeeping practices separate thriving carpentry businesses from those constantly chasing cash flow.

This guide covers the specific bookkeeping requirements for Geelong carpenters—from claiming tool deductions correctly under Division 40 of ITAA 1997, to managing the Taxable Payments Annual Report that catches many tradies off guard.

Why Carpenters Need Trade-Specific Bookkeeping

Generic bookkeeping advice misses the mark for carpentry businesses. Your financial picture includes:

  • High-value tool purchases with varying depreciation rules
  • Material costs that fluctuate with timber prices (Geelong's proximity to plantation forests doesn't shield you from global pricing)
  • Subcontractor payments requiring TPAR reporting
  • Vehicle expenses across multiple job sites from Lara to Torquay
  • Progress billing on larger renovation and construction projects

The ATO pays close attention to the building and construction industry. Getting your bookkeeping right protects you during reviews and audits—and puts more money in your pocket through legitimate deductions.

Tool Deductions: The $300 Threshold and Depreciation Rules

Every carpenter knows tools are the backbone of the business. The ATO has specific rules under Division 40 of ITAA 1997 that govern how you claim these expenses:

Immediate deductions (under $300): Tools costing $300 or less can be claimed immediately in full. This covers most hand tools—chisels, squares, tape measures, and basic power tool accessories.

Depreciation (over $300): Higher-value items must be depreciated over their effective life. Common examples for Geelong carpenters include:

  • Circular saws and mitre saws: 5-year effective life (20% per year)
  • Nail guns: 5-year effective life
  • Compressors: 10-year effective life
  • Hand tools (general category): 3-year effective life

If you're using simplified depreciation for small businesses (turnover under $10 million), you can pool assets costing $20,000 or more and depreciate at 15% in the first year, then 30% each year after. Assets under $20,000 get an immediate write-off.

Pro tip: Xero's fixed asset register handles these calculations automatically. We set up custom depreciation schedules for carpentry businesses so you never miss a deduction or claim incorrectly.

GST Registration and BAS Lodgement for Carpenters

Under the GST Act 1999, you must register for GST once your annual turnover reaches $75,000. For most Geelong carpenters taking on regular residential work, this threshold gets hit quickly.

Why voluntary registration often makes sense: Even if you're earning less, GST registration lets you claim back the 10% GST on all business purchases—tools, timber, fasteners, vehicle running costs, and professional services. For a carpenter spending $30,000 annually on materials and tools, that's $3,000 in GST credits.

Once registered, you'll lodge BAS quarterly (or monthly if you prefer faster refunds). Key dates for Geelong carpenters:

  • Quarter 1 (Jul-Sep): Due 28 October
  • Quarter 2 (Oct-Dec): Due 28 February
  • Quarter 3 (Jan-Mar): Due 28 April
  • Quarter 4 (Apr-Jun): Due 28 July

We lodge BAS for carpentry businesses across Geelong—from sole traders working residential renovations to larger crews handling commercial fit-outs in the CBD.

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Taxable Payments Annual Report (TPAR) Requirements

This is where many carpentry businesses get caught out. If you pay subcontractors for building and construction services, you must lodge a TPAR by 28 August each year.

What gets reported:

  • All payments to subcontractors over $100 (excluding GST) per invoice
  • The subcontractor's ABN, name, and address
  • Total gross paid, total GST paid, and total tax withheld (if any)

The ATO cross-matches this data. If you report paying a subcontractor $25,000 but they only declare $15,000 income, both parties face scrutiny.

No-ABN withholding: Pay a subbie without getting their ABN first? You must withhold 47% from the payment under the PAYG withholding rules. This creates a paperwork nightmare and damages business relationships. Always collect ABNs before that first payment.

Xero tracks subcontractor payments automatically when set up correctly. At tax time, generating your TPAR takes minutes rather than hours of digging through bank statements.

Vehicle Expenses: Logbook vs Cents-Per-Kilometre

Your ute is essential for carpentry work. The ATO gives you two methods for claiming vehicle expenses:

Cents-per-kilometre method: Claim 88 cents per business kilometre (2025-26 rate) up to 5,000 km annually. Maximum claim: $4,400. This works for carpenters with low annual travel or those who hate record-keeping.

Logbook method: Keep a logbook for 12 continuous weeks recording every trip (business and private). Calculate your business-use percentage, then apply that to all vehicle costs—fuel, rego, insurance, servicing, depreciation, and finance interest.

For Geelong carpenters travelling between job sites in Belmont, Highton, Ocean Grove, and beyond, the logbook method typically delivers much higher deductions. If your business-use percentage hits 80% and your total vehicle costs are $12,000 annually, you're claiming $9,600—more than double the cents-per-km maximum.

Important: The logbook only needs updating every 5 years unless your circumstances change significantly. Worth the 12 weeks of effort.

Cash Flow Management for Project-Based Work

Carpentry income arrives unevenly. You might receive a $15,000 progress payment one week and nothing for the next fortnight while waiting for client sign-off. Strong bookkeeping practices keep cash flowing:

Invoice promptly: Send invoices the same day work completes. Xero lets you invoice from your phone on-site—no waiting until you're back at the office.

Progress billing structure: For larger jobs, bill in stages: deposit (10-20%), frame stage, lock-up stage, and completion. This keeps cash coming throughout the project rather than waiting for one lump sum at the end.

Separate GST funds: GST collected isn't your money—it belongs to the ATO. Set up a separate bank account and transfer 10% of every payment received. When BAS comes due, the money's there waiting.

Track material costs by job: Know exactly how much each project costs you. Xero's tracking categories let you assign expenses to specific jobs, showing true profitability beyond just the invoice total.

Record-Keeping Requirements Under Australian Tax Law

The Tax Administration Act 1953 requires you to keep business records for 5 years. For carpenters, this means retaining:

  • All invoices issued (sales)
  • All invoices received (purchases)
  • Bank statements and transaction records
  • Subcontractor agreements and payment records
  • Vehicle logbooks
  • Tool purchase receipts with depreciation schedules
  • Superannuation payment records (if you have employees)

Digital records are fully acceptable. Xero stores everything in the cloud with automatic backups—no more shoeboxes of faded receipts. Snap photos of receipts with the Xero app; they attach directly to transactions.

Superannuation for Sole Trader Carpenters and Employees

If you employ anyone (apprentices, labourers, or other qualified carpenters), you must pay superannuation at 11.5% (2025-26 rate) under the Superannuation Guarantee (Administration) Act 1992. This applies when an employee earns $450 or more in a calendar month.

Key dates: Super contributions must be received by the employee's fund by the 28th day after each quarter ends. Late payments attract the Superannuation Guarantee Charge (SGC), which includes penalties and interest—plus you lose the tax deduction.

For sole trader carpenters, personal super contributions are optional but smart. Contributions reduce your taxable income while building retirement savings. The annual cap sits at $30,000 for 2025-26.

If you're hiring employees, check the Fair Work Act requirements at fairwork.gov.au for award rates covering the building and construction industry.

True Tally Bookkeeping — Geelong Trade Specialists

We work with carpenters across Geelong and the Surf Coast. Xero setup, BAS lodgement, TPAR reporting, and cash flow forecasting—all handled so you can focus on what you do best.

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What to Do Next

Good bookkeeping practices don't happen by accident. For Geelong carpenters wanting to get their finances sorted:

  • Review your current tool records—are you claiming depreciation correctly on items over $300?
  • Check your subcontractor payment records—do you have ABNs for everyone? Is your TPAR tracking accurate?
  • Consider your vehicle claiming method—would a logbook deliver higher deductions than cents-per-km?
  • Set up job tracking—know the true profit on each project, not just the gross invoice value

Most carpentry businesses we work with save thousands annually through better record-keeping and correct deduction claims. Whether you need full bookkeeping support or just help getting Xero set up properly for your trade, we're here to assist.