Bookkeeping
Do Tradies Need a Bookkeeper?
I get this question from tradies more than almost any other client group. The honest answer is: most of you need one earlier than you think you do, and the reason has very little to do with paperwork.
Trade businesses are run job by job, site by site. Materials, labour, fuel, subcontractors, and equipment costs all move fast across multiple jobs at once. Income often comes in stages — a deposit, a progress payment, a final payment — weeks or months apart. If your books are not kept current, you genuinely cannot answer the most basic question in business: which of my jobs actually made money?
The Margin Question
Here is the test I give every tradie who asks me whether they need a bookkeeper. Pick your last completed job. Tell me, right now, what your margin was on it — after materials, labour, fuel, equipment wear, and your time.
Most tradies cannot answer that question with any confidence. They know roughly what they charged. They have a vague sense of what it cost them. But the actual number — the one that tells you whether that job was worth taking — is not something most trade business owners can produce on the spot.
Without knowing your real margin, every quote you write for the next similar job is a guess dressed up as a calculation. You might be underpric ing every job and not know it.
What Good Tradie Bookkeeping Actually Tracks
Proper bookkeeping for a trade business goes beyond reconciling a bank account. It includes:
- Job costing — allocating materials, labour, and overheads to each specific job so you can see the real profit or loss on every project
- Progress payments — tracking deposits and staged payments correctly, because money landing in your account is not automatically income the moment it arrives
- GST and BAS — kept current rather than discovered in a panic before a deadline
- PAYG and super — if you have employees, these obligations need to be tracked and paid correctly
- TPAR lodgement — for construction businesses that pay contractors, this is a compliance requirement that catches a lot of tradies out
The Cost of Not Doing It
The most common pattern I see is a tradie who is so flat out with site work that bookkeeping happens in bursts — a weekend here, a panicked week before BAS is due there. The cost of that pattern is rarely obvious until it shows up.
Missed BAS deadlines mean ATO penalties and interest — money straight out of your margin for no benefit. Missed deductions mean you are paying more tax than you need to, every single year. And the biggest cost: pricing the next job based on a feeling rather than a number.
What a Bookkeeper Actually Costs
For most trade businesses, ongoing bookkeeping runs from a few hundred dollars to a couple of thousand dollars a month, depending on transaction volume and whether you have employees on payroll. It is also a deductible business expense, which softens the actual cost further.
Set against the time it saves — most business owners doing their own books spend several hours a week on it — the maths is usually straightforward. If you charge $100 an hour for your trade and you are spending five hours a week on financial admin, that is $500 a week of your own time, every week, that a bookkeeper could free up for considerably less.
The Signs It Is Time
A few signs consistently show up in tradies who have outgrown doing it themselves:
- You are doing your books on weekends or late at night, after a full week on site
- You genuinely do not know your current cash position without checking your bank balance and hoping for the best
- You have missed a BAS deadline, or come close to it, more than once
- You have taken on an employee or subcontractor and payroll has become more complicated than expected
- You cannot answer the margin question from earlier in this article
If two or more of those sound familiar, it is time.
What to Look For
A bookkeeper who works with trade businesses should understand job costing specifically — not generic bookkeeping, but the practice of allocating costs to individual jobs so you can see real project profitability. They should be comfortable with cloud accounting software like Xero, and if you have employees, they need a solid handle on payroll, superannuation guarantee obligations, and the relevant Modern Award.
If you are in building and construction, ask specifically whether they handle Taxable Payments Annual Report lodgement. This trips up a meaningful number of trade businesses every year.
Bookkeeping is not the part of the job you got into trades to do. It is also the part that tells you, with certainty rather than a gut feeling, whether the business is actually working for you.
Want to always know where your business stands?
123 Financial Group’s bookkeeping service is built specifically around how trade businesses operate. Get in touch to talk through what your business needs.
Frequently Asked Questions
Not legally, but practically speaking most sole trader tradies benefit significantly from one once they have more than a handful of jobs running at once. Without proper job costing, it is very difficult to know which jobs are actually profitable and which are just keeping you busy.
A bookkeeper for a trade business does more than reconcile a bank account. They handle job costing, BAS preparation, payroll if you have employees, TPAR lodgement for construction businesses that pay contractors, and keep your accounts current so you always know where the business stands financially.
For most trade businesses, ongoing bookkeeping runs from a few hundred to a couple of thousand dollars a month depending on transaction volume and whether you have employees on payroll. It is also a deductible business expense, which reduces the effective cost.
Job costing is the practice of allocating all materials, labour, and overhead costs to a specific job so you can see the real profit or loss on every project. Without it, you only see the overall business performance, not whether individual jobs are actually making money. It is the single most important bookkeeping function for a trade business.