Proposals for existing clients are your easiest wins, yet many teams over-complicate them. Your client already knows you, trusts you, and wants quality work. A proposal for an existing client should be concise, reference past success, and position the new project as a natural next step. Short and specific beats long and generic.
Start with a Brief Recap
Open by acknowledging the relationship. Reference your past work together and what you delivered.
Example: “Following the successful rebranding project we completed in Q1, we’re thrilled to propose the next phase: website redesign and development. As discussed in our May 15 meeting, this builds on the brand guidelines we established and extends the new identity to your digital presence.”
This takes two sentences. It reminds them of the value you’ve delivered and frames the new work as a natural progression.
Existing clients already see your credibility. You don’t need a full credentials section. One sentence is enough: “We’ve managed five successful website launches for companies in your industry, averaging a 40% increase in user engagement.”
Project Scope: What’s Happening
Define what you’ll do. Keep it focused and specific.
Example: “We’ll design and develop a new marketing website featuring: responsive homepage, service pages with video, blog platform, contact forms, and integration with your CRM for lead capture. We’ll also set up Google Analytics and track KPIs for the first 90 days.”
Use bullets if it helps clarity. Avoid jargon, even though they know you. Define new terms if you’re introducing a new approach.
Include what’s not included: “This scope does not include paid advertising setup or content migration from your old site.” Clarifying boundaries prevents scope creep.
Reference conversations about changes: “Based on your feedback in our May meeting, we’ve reduced the number of service pages from eight to four, focusing on your primary offerings. This keeps the site lean and improves user focus.”
Timeline and Milestones
Use calendar dates, not generic timeframes. Existing clients know that “timeline varies,” so specificity shows you’ve planned.
Example:
- Week 1 (June 1-7): Design discovery, user flow mapping
- Weeks 2-3 (June 8-21): Design comps, client review and feedback
- Week 4 (June 22-28): Design finalization
- Weeks 5-6 (July 1-14): Development
- Week 7 (July 15-21): Testing and refinements
- Week 8 (July 22-28): Launch
Call out client decision windows. “By June 10, you’ll approve the final design direction so development stays on schedule.” Existing clients respect realistic expectations.
If this project is similar to past work, reference the timeline from that project. “Like your Q1 rebrand, this will follow a 10-week cycle with weekly check-ins.”
Pricing and Payment
State the total investment and show the breakdown.
Example:
- Strategy and design: $15,000
- Development and integration: $20,000
- Testing and launch support: $5,000
- Total: $40,000
Break down payment milestones. For existing clients, align with your past payment structure if possible. “Following the same schedule as your rebrand project: 33% upon signing, 33% at design approval, 34% upon launch.”
Reference pricing from similar past work if relevant: “Website design and development typically costs $45,000-$60,000 for companies your size. We’ve proposed $40,000 based on the scope and our existing relationship.”
Transparency matters. Existing clients expect consistency. If you’ve raised prices, explain why: market rates, complexity, team expertise.
Project Communication and Support
Spell out how you’ll work together. Existing clients appreciate knowing the workflow.
Example: “We’ll have weekly 30-minute calls every Thursday at 10 AM. You’ll have access to a shared project management dashboard where you can track progress, comment on designs, and approve deliverables. We’ll provide two rounds of revision feedback on designs; additional rounds cost $500 each.”
Include post-launch support. “We’ll provide 30 days of free bug fixes and optimization after launch. After that, support and maintenance are $1,500/month for hosting, updates, and minor changes.”
Reference any benefits they’ll recognize. “Like your last project, we’ll include a 90-day analytics review so you understand how the site’s performing and where to focus next.”
Existing clients value simplicity and consistency. Make the proposal easy to scan, reference past success, and show what’s next.
Approval and Next Steps
End with a simple call to action. “If this proposal looks good, we can kick off the week of June 1. A signed contract and 33% deposit gets us started immediately.”
Existing clients often move fast. Make it easy to say yes. “Reply to confirm, and we’ll send over the contract.”
Include a timeline for approval. “We’ll hold this timeline through [date]. Let us know by [date] so we can confirm your schedule.”
Many teams use proposal tracking tools to monitor engagement. Even with existing clients, tracking when they open the proposal helps you know if clarification is needed. Tools like Waco3 alert you when clients open the proposal, so you can follow up at the right moment with the right emphasis.
Related: The 6 Sections Every Winning Proposal Needs
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