Subcontractor Payments: 5 Proven Gaps No Fintech Has Solved
Author: Callum Gracie, Founder, Gia AI
Nobody has built a subcontractor payments platform for the trades industry. Subcontractor payments now cost the construction sector a staggering $280 billion in delays and lost productivity every year, and the problem keeps accelerating.
Think about it. Freelance developers have Deel. Remote marketers rely on Wise and dozens of cross-border payment tools. Even gig drivers get instant cashouts through their apps. Yet the plumber running a five-person crew across six job sites still chases invoices with phone calls and paper.
The construction payment chain works like a waterfall. Developers pay head contractors. Head contractors pay subcontractors. Then subcontractors pay their own crews and suppliers. Money trickles down one level at a time, so a sub three tiers deep has zero visibility into financial problems above.
Subcontractor Payments Take 83 Days on Average
The numbers tell a brutal story. Average days sales outstanding for subcontractor payments in the US sits between 83 and 94 days. Only 12% of construction businesses report always getting paid on time. Over in the UK, just 4% of subcontractors see payment within 30 days.
Meanwhile, these businesses can’t afford to wait. Eighty-seven percent of contractors pay their workers out of pocket before receiving a cent from above. Even worse, a Rabbet survey found a 150% increase in contractors tapping personal retirement savings to bridge cash flow gaps.
Because late payments cascade through the chain, smaller firms carry the heaviest burden. General contractors are twice as likely as subcontractors to get paid within 30 days since they sit closer to the money source. The further down the chain you sit, the longer you wait.
These delays destroy businesses. Construction drives 17% of all UK insolvencies and 27% of all Australian company insolvencies. Retention payments make things worse. Builders typically withhold 5 to 10% of every progress claim as retention, and UK data shows only 17% of those funds come back within one year. Some take up to nine years. Late payments don’t just create headaches for small operators. They remain the top cause of trade business failures across the developed world.
Why Fintech Built Deel for Developers but Not for Trades
So why hasn’t someone fixed subcontractor payments the way Deel transformed freelancer payroll? Five structural gaps make construction fundamentally harder to serve.
First, construction invoicing isn’t simple. Freelancers bill hours or flat fees. Subcontractors submit progress claims against schedules of values, with percentage completion tracking, retention withholding, and variation management baked into every submission.
Second, regulatory fragmentation runs deep. The US has 50 different mechanics lien regimes. Australia maintains eight separate Security of Payment acts. The UK mandates CIS tax deductions on every subcontractor payment. Each jurisdiction layers unique compliance requirements onto every single transaction.
Third, the two-sided marketplace problem blocks adoption. General contractors decide which platforms subcontractors must use, project by project. Unlike Stripe, which only needs the merchant to integrate, construction payment tools require both sides to participate. And many GCs resist digital transparency because it threatens the common practice of shifting funds between projects.
Fourth, existing solutions only solve fragments. Payapps handles progress claims but doesn’t move money. Procore Pay processes payments but caters to GCs, not subs. Billd offers financing without touching invoicing. Siteline gives subcontractors cross-builder billing visibility but can’t transfer a dollar. No single platform covers the full payment lifecycle from the sub’s perspective.
Fifth, construction remains the second-least digitized major industry on earth. Sixty-nine percent of companies still pay by paper check. The workforce skews older and relationship-driven, so many subcontractors fear that pushing for digital tools will cost them future work.
Subcontractor Payments Represent a $7 Trillion Opportunity
Despite these barriers, the addressable market is staggering. Roughly $7 to $9 trillion flows through subcontractor payments globally every year. In US residential construction alone, 84% of costs go to subcontractors. The average home build involves 24 different specialty firms. Commercial projects push that ratio even higher, with 70 to 95% of project value passing through subcontracting chains.
Nearly all of these businesses are tiny. In Europe, 95% of construction firms employ fewer than 10 people. In Australia, 98.5% count as small enterprises. These operators manage invoicing and payments across multiple projects using spreadsheets and personal bank accounts.
Freelancer fintech already proved that purpose-built payment infrastructure for independent workers creates enormous value. Deel hit a $12 billion valuation by automating compliance and payments for knowledge workers. The construction subcontracting economy is bigger, more fragmented, and more desperate for modern solutions.
The platform that finally cracks subcontractor payments will combine billing, compliance, payment processing, and financing into one stack. It will sell through general contractors while treating subcontractors as the primary user. And it will turn regulatory complexity into a competitive moat rather than a roadblock.
Three conditions make the timing increasingly favorable. Slow-payment costs grew from $136 billion to $280 billion in just three years. New prompt payment legislation across multiple jurisdictions creates standardized digital workflows. And 82% of subcontractors say they would adopt digital payment systems if it speeds up cash flow.
For now, millions of trade businesses keep financing a trillion-dollar industry on credit cards and retirement savings. The question isn’t whether someone will build the subcontractor payments platform this workforce needs. It’s why it’s taken this long.
