SubAssure logo featuring a blue shield with a checked document Book a compliance review
Built for contractors who pay subcontractors

One missed lien waiver or expired COI can cost you $100k+.

SubAssure automatically verifies COIs, lien waivers, W-9s, licenses, contracts, and compliance documents before subcontractor payments go out — so you never pay a non-compliant sub again.

Risk avoided
Payment holds
Accounting sees
Approved to Pay
No migration
Works beside you
24/7
document chasing
0
expired COIs missed
1
approved-to-pay source
SubAssure Command Center
Subcontractor readiness
86% compliant
Payment run protection
7 subcontractors blocked before ACH release
Hold active
Ready to pay
128
Needs review
19
Blocked
7
Mason Siteworks LLC
Project: Arlington Retail Buildout
Approved
COI
W-9
Waiver
License
Hendrix Roofing Co.
Project: Medical Office Renovation
Needs review
COI
W-9
Waiver
License
Blue Ridge Electric
Project: Midtown Apartments Phase II
Blocked
COI expired
W-9
Waiver missing
License
Follow-up sent
“Please upload your updated general liability certificate and conditional lien waiver before payment can be released.”

Built for commercial contractors, specialty trades, and construction finance teams

General Contractors Roofing Electrical Mechanical Restoration
The shift

Stop guessing who is safe to pay.

SubAssure turns scattered paperwork into one clear payment decision.

Before SubAssure

Spreadsheets, inboxes, and guessing before payment.

COIs buried in email threads and shared drives
Lien waivers chased manually by project teams
Accounting unsure who is safe to pay
Expired documents discovered after money moves
After SubAssure

One clean answer before every payment goes out.

Every sub marked Approved, Needs Review, or Blocked
Missing documents chased automatically
Payment holds tied to real compliance issues
Audit-ready folders for every vendor and project
The real problem

Your payment process is only as safe as your subcontractor paperwork.

Every missing waiver, expired policy, bad W-9, or unlicensed sub creates real financial and legal exposure.

Mechanics’ liens & double-payment risk

One unsigned or incorrect lien waiver can cloud the property title and force you to pay the same invoice twice. State laws vary wildly — missing one is a common and expensive mistake.

Uninsured claims land on you

An expired or inadequate COI means workers’ comp, injury, or property damage claims can hit your company directly. One lapse can cost hundreds of thousands in uncovered losses.

IRS penalties + licensing violations

Bad or missing W-9s trigger backup withholding and IRS fines. Working with unlicensed subs can void your own insurance and create legal violations.

When compliance fails

These mistakes happen every single month

Incident #014
Preventable
$187k

Mechanics lien filed

Sub or sub-sub never signed the unconditional waiver. Owner withheld final payment from the GC and added legal fees.

Incident #027
Preventable
$425k

Workers’ comp claim on you

Subcontractor’s COI had lapsed. Claim landed directly on the General Contractor’s policy.

Incident #031
Review
$14,600

IRS penalty + backup withholding

W-9 name mismatch or missing form triggered penalties and forced extra tax withholding.

Incident #039
Cash flow
6+ weeks

Payment & cash-flow delays

Manual chasing of documents kills momentum and strains subcontractor relationships.

How it works

SubAssure sits between your documents and your payment approvals.

Keep your accounting system. Keep your project management system. SubAssure becomes the compliance layer that verifies documents before money moves.

Final output
Approved to Pay
Needs Review
Blocked
1

Connect your inbox and vendor list

Forward subcontractor paperwork into SubAssure or connect a shared compliance inbox.

2

Every document is reviewed

COIs, W-9s, lien waivers, licenses, contracts, and project-specific files are collected, organized, and checked against your requirements.

3

Subcontractors get chased automatically

Missing, expired, or invalid documents trigger polite follow-up emails until the file is complete.

4

Accounting gets one answer

Every vendor is marked Approved to Pay, Needs Review, or Blocked.

Not another system to manage

We do the chasing, checking, organizing, and flagging for you.

Your team should not have to dig through inboxes, shared drives, spreadsheets, and vendor folders before every payment run.

Human-reviewed vendor compliance
AI-assisted document extraction
Automatic subcontractor follow-up
Accounting gets one answer: safe to pay or not
Before every payment run

SubAssure checks the things your team cannot afford to miss.

✓ COI active and not expired
✓ Correct insured name
✓ Workers’ comp coverage confirmed
✓ W-9 collected and matched
✓ Lien waiver collected for payment cycle
✓ License status reviewed where required
What you get

Compliance support your accounting team can rely on.

COI verification

Extract policy dates, insured name, coverage types, certificate holder, limits, and expiration status.

Lien waiver tracking

Track conditional and unconditional waivers by subcontractor, project, invoice, and payment cycle.

W-9 and vendor onboarding

Keep clean vendor records before a subcontractor ever reaches payment approval.

Auto-follow-up emails

SubAssure follows up with subcontractors until missing documents are collected and validated.

Payment hold status

Accounting sees a simple status before issuing checks or ACH payments.

Audit-ready folders

Every subcontractor and project gets a clean, searchable compliance record.

No migration

Works with your inbox, folders, accounting process, and existing approval workflow.

Fast setup

Start with a vendor list, sample COI folder, and your payment approval rules.

Human-backed

Automation handles the busywork, but compliance exceptions can be reviewed by real people.

Built to protect cash flow and reduce payment risk

Stop relying on someone’s spreadsheet to protect your company.

SubAssure gives owners, controllers, and project teams one clean system for knowing which subcontractors are safe to pay.

Common payment blockers
Expired general liability COI Blocked
Missing conditional lien waiver Blocked
W-9 name mismatch Review
Project contract signed Approved
Unlicensed subcontractor Blocked
Pricing

Premium compliance infrastructure for serious contractors.

SubAssure is priced around the value of avoided risk, faster payment approvals, and less manual admin work.

One avoided claim, lien issue, or payment mistake can pay for SubAssure for years.

Compliance Cleanup

For smaller teams cleaning up subcontractor paperwork.

$1.5k /mo
  • ✓ Up to 50 subcontractors
  • ✓ COI and W-9 tracking
  • ✓ Expiration alerts
  • ✓ Compliance dashboard
Most popular

Payment Protection

For contractors who need payment approvals tied to compliance.

$3k /mo
  • ✓ Up to 500 subcontractors
  • ✓ COI, W-9, lien waiver tracking
  • ✓ Auto-follow-up emails
  • ✓ Approved-to-pay workflow
  • ✓ Audit-ready vendor folders

Multi-Entity Compliance

For multi-entity contractors with custom rules and integrations.

Custom
  • ✓ Multi-entity support
  • ✓ Custom compliance rules
  • ✓ Accounting integrations
  • ✓ Dedicated onboarding

Implementation packages typically start at $7,500 for vendor import, rule setup, and workflow configuration.

Get started

Get a free subcontractor compliance review.

Send us a sample vendor file, COI folder, or payment approval process. We’ll show you where risk is hiding.

No platform migration required. SubAssure works alongside your existing inbox, accounting system, and project workflow.