Sales

Proposal cover letter

The cover letter that goes on top of a project proposal or SOW.

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How to use this template

1
Pick this template
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2
Fill your details
Answer the structured questions — names, context, ask. No blank textarea.
3
Generate
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Example output

Dear Karthik,

When we first met in October, you walked me through what you described as the most frustrating part of running customer success at your scale: a 30-day onboarding flow that was high-touch, inconsistent, and impossible to keep up with as the customer base grew. New customers were dropping off in week two, and your CSMs were spending more time chasing handoffs than improving the product experience.

The attached proposal lays out our approach to fixing that. In short, we'll audit the current flow, design a self-serve path anchored by five milestone touchpoints, implement and instrument it inside your existing tooling, and train your team to maintain it without us. Full scope details are on pages 3-7.

We propose to deliver this work over nine weeks, starting January 12, 2026, for a total investment of $42,000 invoiced in three milestones.

If this works for you, please sign and return the attached SOW and we'll send across a kickoff calendar invite within two business days. If anything in the scope or terms needs adjusting, I'm happy to jump on a call this week.

Best regards, Ashish

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Frequently asked questions

How do I write a proposal cover letter?
Pick Ghostpen's Proposal cover letter template, fill in a few structured details (recipient, context, your ask), choose a tone, and generate a polished draft in seconds. You can refine it by chatting until it reads exactly the way you want.
Is the Proposal cover letter template free to use?
Yes. You get 25 free credits when you sign up — no credit card required. Each generation costs one credit, and your credits never expire.
Can Ghostpen write the proposal cover letter in my own voice?
Yes. Add a few things you've written in Voice Studio and Ghostpen learns your style, then applies it to every draft so your proposal cover letter sounds like you wrote it.
Free tier: 25 credits, no expiry. Paid plans from $5. See pricing →