COI & W-9 tracking for contractors

Spend less time chasing subs for certificates.

CertiSub collects insurance certificates and W-9s from your subs, reads them with AI, and sends the reminders for you — so expiring and missing documents are easier to spot on your dashboard, instead of slipping by unnoticed.

Built for GCs and office managers tracking 10–100 subs.

Why it matters

An expired cert is easy to miss — and it could get expensive.

Three moments where a missing piece of paper might turn into real money.

Audit season

The workers' comp audit

Auditors often ask for payments by sub along with proof of coverage. Depending on your carrier and state, payments to subs without documentation on file could be added to your own payroll.

On the job

The uninsured sub on site

A cert expired three weeks ago and nobody noticed. Knowing what's current — and what isn't — doesn't have to depend on someone remembering to check a folder.

Every January

The 1099 scramble

Tax time hits and some of your W-9s are in a truck, an inbox, or nowhere. CertiSub keeps them on file next to every sub's certs.

How it works

Three steps. A lot less chasing.

1

Send the link

Every sub gets a personal upload link. They tap it and send their cert or W-9 from their phone.

No login. No password.
2

AI reads the document

CertiSub scans the certificate and drafts the carrier, coverage dates, and limits into the sub's file for you.

Usually drafted in seconds
3

You confirm. Done.

Review the drafted details, click save, and the expiration clock starts. You stay in control of every record.

A quick review
✓ When a cert is expiring or missing, CertiSub reminds the sub automatically — and follows up on anything still missing. You get a monthly summary of what's on file and what's expiring.
Everything on file

One place for every sub, every document, every dollar.

🔗

No-login upload portal

Subs upload from a link on their phone — removing one of the biggest points of friction in getting documents submitted.

🤖

AI document scan

Certificates are read automatically and drafted into the record. You confirm — the AI does the typing.

🔔

Reminders & follow-ups

Expiring certificate? Missing W-9? The sub gets reminded — and followed up with — automatically. You see what went out instead of doing it.

✍️

Agreements signed online

Upload your own subcontractor agreement once. Each sub signs their copy from their link, and the signed copy is filed on their page.

🏗️

Payment log

Log what you pay each sub and see any dollars paid outside the certificate dates on file.

📄

W-9s, licenses & more

Choose what every sub owes you. Each gets a checklist, and January's 1099 run can be a download rather than a hunt.

Reporting

Every sub, payment, and document — pulled into one report.

When it's time to answer to an auditor, an owner, or your bookkeeper, pull your records for any date range — print it, save it as a PDF, or export to CSV. What used to take days of digging can become a download.

See it in your trial
✓ Every payment by sub, for any date range
✓ Certificates matched to each payment period
✓ W-9s attached per sub
✓ Missing documents flagged so you can follow up
Pricing

Simple, affordable pricing.

Starter

For small crews getting certificates under control

$39/mo
  • Up to 15 subcontractors
  • No-login upload links for your subs
  • AI reads each certificate — you confirm
  • Automatic expiry reminders and request follow-ups
  • Payment Log, with payments outside certificate dates flagged
  • W-9s, licenses and other documents on file
  • Download all your data, anytime
Get started
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Pro

For GCs who answer to auditors and owners

$79/mo
  • Unlimited subcontractors
  • Everything in Starter
  • Records report for any date range — print, PDF or CSV
  • Online agreement signing (20 a month)
  • Projects
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3-day free trial on Pro · Cancel anytime

Questions

Fair questions, straight answers.

Do my subs need to create an account?

No. Each sub gets a personal upload link that works from any phone. They tap, snap or attach the document, and send. That's the whole flow.

What if the AI reads a certificate wrong?

Every scan is a draft, not a decision. You review the carrier, dates, and limits before anything is saved — the AI does the data entry, you keep the judgment.

I track everything in a spreadsheet now. Why switch?

Spreadsheets track — they don't chase. CertiSub sends the reminders, collects the documents, and flags payments recorded outside the certificate dates on file — the follow-up work that can get hard to keep up with past 15 subs.

Does CertiSub verify that a sub's insurance is valid?

No. CertiSub organizes the documents your subs provide, tracks the dates on them, and reminds everyone when something is expiring or missing. Verifying coverage and requirements is between you, your subs, and your insurance professionals.

Can my subs sign our subcontractor agreement online?

Yes, on Pro. Upload your own agreement once and mark where each side signs. Each sub signs their copy from their upload link, you add your signature, and the signed copy is filed on their page. You supply the agreement — CertiSub never writes contract language.

Can I get my data out?

Yes, on every plan. Download everything as one zip — every document file plus spreadsheets of your subs, payments and documents — any time. Your records are yours.

Spend less time chasing paperwork.

Many teams set up their sub roster in an afternoon, then let the reminders handle the follow-up.

Start your free trial