Why scope creep costs so much
In Ignition's 2025 Agency Pricing and Cash Flow Report (a survey of 273 US agency leaders), 57% of agencies said they lose $1,000 to $5,000 a month to unbilled work, and 30% said it costs them more than $5,000 a month. 78% rarely or only sometimes charge for out-of-scope work, and only about 1% bill for all of it.
Most of that isn't bad clients. It's small, friendly requests ("can you just...") with no clear line and no price. The fix is a fence: a written line that both sides agreed to before work started.
Step 1: Write what's OUT, not just what's in
Most proposals only list what's included. Clients then assume everything else is included too. Add a second list: what's not included.
| Included | Not included (priced as extras) |
|---|---|
| 2 rounds of revisions per deliverable | A 3rd or later round of revisions |
| 5 website pages | New pages after sign-off |
| 1 monthly strategy call (45 min) | Extra calls or meetings |
| Ad setup and management | Ad spend (paid by the client) |
| Copy for the pages agreed | Copy for new pages, emails or ads |
Step 2: Put a price on every extra
When extras already have a price, saying yes is easy and nobody feels awkward. Put a short price list in the contract.
| Extra | Example price |
|---|---|
| Extra revision round | $150 |
| New page | $400 |
| Extra call (45 min) | $100 |
| Rush delivery (under 48 hours) | +25% |
| Anything else | Your hourly rate × estimated hours |
These are examples. Use your own rates, and base each price on the real hours the work takes you.
Step 3: Reply "yes, and here's the price"
Don't say no, and don't do it for free. Say yes, and add the price. You stay helpful, and the client decides.
We use the same fence with our own clients: every campaign starts with a written list of what's included (inboxes, lists, copy, follow-ups) and what isn't. That's part of how one agency client of ours got 2,146 interested replies without the project turning into endless extras. A clear scope keeps both sides happy, and it's how we run every client.
Want us to set this up for you? Book a free call →Happy to do that! 🙌 This one sits outside what we agreed for this month, so it's an extra: [what they asked for] = $[price], ready by [date]. Want me to go ahead? Just reply "yes" and I'll add it to this month's invoice.
If the request is big, send the change-order form below instead of a quick reply.
Step 4: Bill extras the same month
Extras billed 3 months later feel like a surprise. Add every approved extra to the next invoice, with the date it was approved.
The change-order form
CHANGE ORDER #[number] Client: [name] Project: [project] Date requested: [date] What's being added: [describe the extra work in 1-3 lines] Why it's outside the original scope: [e.g. new page not in the original 5] Price: $[amount] New delivery date: [date] Effect on other deadlines: [none / moves X by Y days] Approved by: ______________ Date: ________
Worked example
Say you do 3 extra requests a month, each about 4 hours, at $100 an hour:
- 3 extras × 4 hours × $100 = $1,200 a month
- $1,200 × 12 months = $14,400 a year
- That's money you were already earning with your time, just not billing.
Common mistakes
| Mistake | Fix |
|---|---|
| The fence is added after the project starts | Get the in/out list signed before kickoff |
| Saying "sure, no problem" on a call | Say "Happy to, I'll send you the price today" |
| Vague limits like "minor changes" | Use numbers: rounds, pages, hours |
| Billing extras months later | Add them to the same month's invoice |
| Doing the extra before it's approved | Wait for a written "yes" |
Make your own fence with Claude
I run a [type of business] and I sell [service] for $[price] a month. The client usually gets: [list what you deliver]. Common extra requests I get: [list them]. My hourly rate: $[rate]. Write me: 1) an "Included" and "Not included" list with specific numbers, 2) a price list for the 5 most common extras, based on my hourly rate, 3) a short, friendly "yes, and here's the price" reply I can paste into email or Slack. Keep it simple and polite.
Links and tools
Quick answers
Won't clients be upset if I charge for extras?
Not if it was agreed in writing at the start. Clear prices feel professional. Surprise bills are what upset clients.
What if a small request takes 10 minutes?
You can do small favors on purpose, but say so: "This one's on us." Then the client knows it's a favor, not part of the deal.
I already started the project without a fence. What now?
Send the in/out list now as "to keep us both clear going forward", and apply it from next month.
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