Adelaide Accountants for Builders, Tradies, and Construction | Tax, BAS, and Business Advisory
From sole trader tax returns and BAS lodgement to construction bookkeeping, subcontractor compliance, and structure advice, we understand how trades businesses work and what it costs when the numbers are wrong.
Accounting for Adelaide Builders, Tradies, Subcontractors, and Construction Companies
The construction and trades industry is one of the most underserved sectors in Australian accounting. Most general accountants handle a builder's tax return the same way they handle a retail employee's, and miss the deductions, BAS complexities, and contractor compliance issues that are specific to the industry.
The Kalculators works with every type of business and worker in the Adelaide construction and trades sector. Whether you swing a hammer on someone else's site, run your own trades business, or manage a construction company with staff and subcontractors, the accounting problems are different, and so are the solutions.
Accounting for Adelaide Builders and Tradies at Every Stage
Whether you are on the tools as a sole trader, running a crew, or managing a construction company, the accounting challenges are different at every level. We know them all.
Sole trader tradie (ABN)
Vehicle and tool deductions, BAS obligations, PAYG from clients, and super contributions for self-employed.
Subcontractor on site
Contractor vs employee rules, PAYG from contractors, site expense claims, and GST registration guidance.
Builder / construction business owner
Progress billing, payroll, STP compliance, super obligations, and Xero setup for projects.
Construction company (Pty Ltd)
Company tax returns, trust distributions, Division 7A, BAS lodgement, QBCC compliance, and depreciation.
Tradie considering going ABN
ABN vs employment, GST threshold advice, income structuring, and sole trader vs company comparison.
Accounting Services for Adelaide Construction and Trades Businesses
Every service below is available in person at our three Adelaide offices or entirely online through our secure client portal. The same qualified accountant handles your file from start to finish, we do not outsource.
Tax Returns for Tradies and the Construction Industry
Sole traders, subcontractors, and construction workers. Tools, vehicles, PPE, and union fees all claimed correctly. Not confident in previous returns? Second Look Assessment costs nothing if we find nothing.
BAS Lodgement and GST for Trades Businesses
GST on subcontractor payments, progress claims, retention, and mixed-use purchases — handled correctly every quarter. We lodge on time, so the BAS deadline is never a source of stress.
Bookkeeping for Construction and Trades Businesses
Xero Gold Partner connected to Buildertrend, Tradify, and simPRO. Progress claims, subcontractor records, site payroll, and job cost reporting so you know which jobs are profitable before you price the next one.
Payroll, Superannuation, and Subcontractor Compliance
Weekly payroll, STP Phase 2, and super contributions were managed correctly. Subcontractor arrangements are reviewed against ATO contractor tests before a misclassification becomes a liability.
Business Structure, Tax Planning, and Growth Advisory
Sole trader, company, or trust, we advise on the right structure for your income level and growth plans. Division 7A, succession planning, and ATO debt negotiations are handled when the situation calls for it.
Contract and Subcontractor Tax
ABN invoicing, PAYG withholding from head contractors, and end-of-year income reconciliation across multiple sites and clients are lodged correctly, whether you work for one builder or twenty.
What Our Clients Say (Real Adelaide Stories)
M. Papadopoulos
Adelaide, Australia
I run a tiling business with two employees and three subbies. My previous accountant got the contractor classification wrong, and I ended up owing super I should have been collecting. The Kalculators fixed it, set up our Xero properly, and now BAS time is no longer a nightmare.
What Can Builders and Tradies Claim on Tax?
The ATO's deduction guidelines for building and construction workers allow a broad range of work-related expenses, but the rules around substantiation, private-use apportionment, and what counts as a capital item vs an immediate deduction are where most tradies either miss out or overclaim. Here is what a specialist construction accountant reviews in every return:
| Deduction | What qualifies | Missed by generalists? |
|---|---|---|
| Tools and equipment | Tools under $300: immediate deduction. Over $300: depreciated over effective life. Replacement and repair of work tools at any cost. | Claiming capital tools in full in one year |
| Vehicle — logbook method | Travel between work sites, to pick up materials, and from the client site to home if home is a base of operations. Logbook must cover 12 continuous weeks minimum. | No logbook — ATO will deny claim |
| Personal protective equipment | Hard hats, steel cap boots, safety glasses, high-vis vests, gloves, and respiratory protection — all fully deductible if for work use. | Missed in most generalist returns |
| Work clothing and laundry | Compulsory uniforms, protective clothing. Laundry at ATO rate ($1 per load up to $150 without receipts). Plain work clothes are NOT deductible. | Plain clothes incorrectly claimed |
| Phone and internet | Work-use proportion of mobile plan, data, and handset cost. Requires a usage diary or a reasonable estimate for the year. | Claiming 100% when partly personal |
| Union fees and licences | CFMEU, ETU, AMWU and other union fees are fully deductible. Trade licence renewal fees, white card, and first aid certificates are all deductible. | Frequently missed |
| Home office (administrative) | Proportion of home internet and phone used for quoting, scheduling, and admin. ATO fixed rate 67 cents per hour method or actual cost method. | Missed by sole traders |
| Training and upskilling | Courses directly related to current trade Certificate IV in Building and Construction, and advanced trade certifications. Not career-change courses. | Sometimes overclaimed |
| Superannuation (self-employed) | Sole traders can claim personal super contributions as a deduction up to the concessional cap ($30,000 in 2025–26) after lodging a Notice of Intent. | Very frequently missed |
Not confident that your previous returns claimed everything correctly? Our Second Look Assessment reviews up to three years of past returns at no upfront cost.
How The Kalculators Work With Adelaide Tradies and Builders
Tradies start early and finish when the job is done. The standard 9-to-5 accounting appointment model does not work for most people in the construction industry. Our process is designed around that reality.
Flexible Booking That Fits Your Schedule
Book online at a time that suits you — early morning, evening, or Saturday. Your accountant calls you at the chosen time. No travel, no waiting room.
Flexible Booking That Fits Your Schedule
Book online at a time that suits you — early morning, evening, or Saturday. Your accountant calls you at the chosen time. No travel, no waiting room.
Simple & Secure Document Sharing
We send you a secure link. Share your receipts, bank statements, payment summaries, and logbook from your phone. No printing, no folders, no scanning at a library.
Simple & Secure Document Sharing
We send you a secure link. Share your receipts, bank statements, payment summaries, and logbook from your phone. No printing, no folders, no scanning at a library.
Accountant-Prepared, Fully Transparent
Your return is prepared by a qualified accountant — not outsourced. We send you a summary to review before anything is lodged. You know what you are getting before it goes to the ATO.
Accountant-Prepared, Fully Transparent
Your return is prepared by a qualified accountant — not outsourced. We send you a summary to review before anything is lodged. You know what you are getting before it goes to the ATO.
Support Beyond Tax Time
Year-round access. When you are buying a new ute, taking on your first employee, or quoting a job that requires a new structure, call us. We are not just an end-of-year service.
Support Beyond Tax Time
Year-round access. When you are buying a new ute, taking on your first employee, or quoting a job that requires a new structure, call us. We are not just an end-of-year service.
Why Adelaide Builders and Tradies Choose The Kalculators
- IPA Practice of the Year SA & NT 2025 Institute of Public Accountants award for accounting excellence across South Australia
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- Registered Tax Practitioners Board firm every return lodged by a registered tax agent, not a clerk
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- Xero Gold Partner certified and integrated with construction project management platforms including Buildertrend and Tradify
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- We understand construction BAS GST on progress claims, retention, mixed-use purchases, and subcontractor payments are handled correctly every quarter
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- Contractor compliance experience we assess your subcontractor arrangements against ATO tests before the ATO does
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- We do not outsource the accountant you speak to prepares and lodges your return
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- 20,000+ clients annually, $20M+ in deductions claimed the scale to know what the ATO looks for in construction returns
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Trusted by Thousands Across South Australia
Our Branch Locations
Salisbury Branch
salisbury@thekalculators.com.au
182 Salisbury Highway, Salisbury, SA 5108
Frequently Asked Questions
Book a Consultation With an Adelaide Construction Accountant
Whether you are a sole trader tradie lodging your first ABN return, a subcontractor who has never had your contractor status formally assessed, or a construction business owner who knows the numbers need to be better, the first consultation is free and carries no obligation.
The Kalculators works with builders, tradies, and construction businesses across the full Adelaide metropolitan area and regional South Australia. Same-day bookings available.
Contact our team today for a no-obligation consultation.
