What Are the Risks of Construction Arbitrage?

The risks of construction arbitrage are real and worth knowing before you start: unlicensed contracting penalties, subcontractor failures, defect liability for work you didn't personally do, cash flow gaps, and underinsurance. None of these are hidden or exotic - they are the standard risks of running a main contracting business. The ones that sink people are almost always compliance failures, not a flaw in the model itself.

The risks of construction arbitrage, broken down#

I have been running this model for years - winning the work, subbing it out, keeping the margin. The risks below are the ones I have seen cause real damage. Not edge cases. Actual problems.

Licensing risk#

This is the highest-stakes item on the list, and the one people most often underestimate.

In most US states, in the UK for certain trades and project types, and in Australian states, operating as a general contractor above a certain threshold requires a licence. In California, under Business and Professions Code Section 7028, performing contracting work with a combined labour and materials value of $500 or more without a current CSLB licence is a misdemeanor. A first offence carries up to six months in county jail or a fine up to $5,000. A second offence within ten years brings a 90-day mandatory minimum jail term. The CSLB can also impose civil penalties - currently a minimum of $200 per offence, rising to $1,500 under SB 779 effective July 2026.

California is not the outlier. New Jersey overhauled its entire contractor licensing system in 2026. Some states treat repeat unlicensed contracting as a felony.

This is not a grey area. Find out exactly what your state or country requires, get the right licence, and keep it current. I have written a full breakdown on do you need a contractor licence for construction arbitrage and there is a legal overview covering the US on the is construction arbitrage legal page.

Subcontractor failures#

Subs are the engine of this model, and occasionally the engine stalls.

A sub walks off mid-job. A sub does work that fails inspection. A sub produces work so poor the client refuses to pay you. These happen. And when they do, the problem lands on you - not the sub - because you are the party with a contract to the client.

I keep over 1,400 subs in my database, not because I need them all, but because I never rely on one. Every sub I use on a live job has a track record, a clearly scoped contract, payment terms tied to completion milestones, and I have an alternative ready. That is not paranoia - that is just how a properly run operation works. The guide to finding and vetting subcontractors covers the vetting process in detail.

Defect liability#

Here is the risk that catches people off guard: as the main contractor, you carry liability for defects in the finished work even if you never touched the tools.

Your contract is with the client. The client does not care which sub did the tiling - they care that the tiling has failed. US, UK, and Australian courts consistently hold that general contractors cannot pass their duty of care to the client onto a subcontractor. Certain safety duties are non-delegable - they sit with you regardless of who performed the work. You can, and should, pursue the sub for reimbursement under your subcontract, but the client's first call is to you.

The practical response is: carry the right insurance, use contracts with your subs that include proper liability and flow-through clauses, and never use a sub who cannot provide a current certificate of insurance. Their coverage is your backup when things go wrong.

Cash flow gaps#

Construction has a payment timing problem that is industry-wide, and the arbitrage model does not eliminate it.

In 2024, Dodge Construction Network found that 74% of construction companies experienced moderate to severe cash flow challenges, with delayed client payments as the primary cause. According to Mobilization Funding's 2025 payment report, general contractors waited an average of 83 days to be paid after invoicing. The pattern is simple and dangerous: you pay the sub before the client pays you, and if the timing gap is wide enough and your reserves are thin, you run out of cash on a project you have not been paid for yet.

I handle this with staged payments. I do not start without a deposit - typically 25-30% upfront - and I structure the payment schedule so client payments track project milestones, never falling far behind what I have already paid out. Clients pushing back hard on milestone payments are worth scrutinising before you sign anything.

The full picture on the numbers - including realistic margin ranges and what the money actually looks like - is in how much can you make with construction arbitrage.

Underinsurance#

The most avoidable risk on this list, and the one I see cut corners on most often.

General liability insurance for a main contractor is not optional. It is what sits between one claim and the end of your business. Commercial projects in the US routinely require $1 million per occurrence and $2 million aggregate as a minimum - and many project owners and property managers check your certificate before they sign a contract. State licensing minimums are often set lower than commercial project requirements, so being "technically compliant" can still leave you exposed.

The cost of proper coverage is a fraction of the margin on one job. Running without it, or with limits well below what your projects require, is the single worst financial decision you can make in this business.

How serious are these risks in practice?#

Serious - but predictable. And that distinction matters.

The model is not fragile. I have run jobs across multiple countries from a laptop. The problems I have seen - and the problems I have read about - almost always trace back to one of three choices: starting without the right licence, taking jobs without proper written contracts, or relying on a single subcontractor with no backup plan.

None of those are flaws in the model. They are operational failures. And they are avoidable.

The business does not fail because the model is broken. It fails because someone skipped the basics.

The full overview of how the model works is on the construction arbitrage pillar page.

What keeps the risk profile manageable#

• Get the correct licence for your jurisdiction before you take any job
• Carry general liability insurance to at least the commercial project standard for your market
• Use written contracts with every sub - scope, payment milestones, defect liability, and what happens if they walk off
• Never rely on one sub; have a shortlist for each trade
• Structure client payment schedules with milestones so you are never far ahead of incoming cash
• Verify sub insurance on every job - ask for the certificate and check it is current

None of that is complicated. It is running the operation properly.

If you want to build this with people who are already doing it, the room for that is Construction Arbitrage Players on Skool - the community where the model gets practiced, not just discussed.

And if you want the full picture of how I built this from the inside, I am writing THE FAMILY SECRET - How Construction Arbitrage Really Works. Not out yet, but coming.

Last checked: 17 June 2026.