Why Change Orders Are the Biggest Risk on Any Project
Change orders are inevitable on construction projects. Owners change their minds. Field conditions differ from drawings. Errors in the original design get discovered mid-construction. That's normal. What kills project profitability isn't the changes themselves — it's failing to document, price, and get approval for them before the work is done.
Studies consistently show that unapproved or poorly tracked change orders are one of the leading causes of contractor losses on commercial projects. The work gets done, but payment disputes follow because the paperwork wasn't in order.
The Change Order Lifecycle
A well-managed CO moves through clear stages:
- Identification — someone (owner, architect, or field crew) identifies a scope change
- Pricing — the contractor prepares a cost estimate for the change
- Submission — the CO is formally submitted to the owner for review
- Negotiation — the owner reviews, may request revisions, and either approves or rejects
- Approval — both parties sign; the contract value is updated
- Billing — the approved CO value is added to the Schedule of Values and included in the next invoice
The most common breakdown happens between steps 3 and 6 — change orders that are submitted but never formally approved, or approved COs that get lost and never added to the SOV.
What a Good CO Tracking System Looks Like
At minimum, you need to track the following for every change order:
- CO number and title
- Project it belongs to
- Current status (draft, submitted, approved, rejected)
- Dollar amount
- Date submitted and date approved
- Whether it has been added to the Schedule of Values
- Whether it has been billed
If you're managing this in a spreadsheet, you're one accidental delete away from a billing error. You also have no audit trail if an owner disputes a CO months later.
The SOV Link: Where Most GCs Drop the Ball
Approving a change order is only half the job. The other half is making sure the approved CO value gets added to your Schedule of Values so it actually shows up on your next invoice. This is where spreadsheet-based systems routinely fail — the CO tracker and the invoice tracker are separate files, and the connection between them depends entirely on someone remembering to update both.
In a proper construction management system, approved COs automatically flow into the SOV as new line items. You approve the CO, and the next invoice already shows the updated contract value. Nothing falls through the cracks.
E-Signatures: Closing the Loop on Approvals
One of the most important upgrades a contractor can make is moving from verbal or email approvals to formal electronic signatures on change orders. A signed CO is a contract amendment — it's your protection if an owner later claims they never agreed to the extra work.
Modern construction software lets you send a CO to a client via email, have them review and sign electronically, and automatically record the signer's name, IP address, and timestamp. The signed record is stored permanently and tied to the CO. No DocuSign account required.
Building a CO Log for Owners
On larger projects, owners expect a periodic CO log — a summary of all change orders to date, showing numbers, descriptions, amounts, and statuses. This is usually required alongside your pay application.
If you're generating this manually from a spreadsheet, it takes time and introduces room for error. Software can export a formatted CO log PDF in seconds, filtered by project and date range.
The Bottom Line
Change order management isn't glamorous, but it's one of the highest-leverage things you can get right as a contractor. The difference between a project that's profitable and one that isn't often comes down to whether every change was properly documented, approved, and billed. Systematic tracking — with a real audit trail and automatic SOV updates — is the only way to make sure that happens consistently.