Engagement Letters That Go Out Before the Work Starts, Not After
Build the engagement letter from your services and pricing packages, send it for acceptance, and see exactly who has signed and who has not — before a single hour is worked.
Remindoo is engagement letter software for US accounting firms. Build the letter from the services and pricing packages your firm already set up, send it to the client for acceptance, and track status per client. Nobody starts work on an unsigned engagement because the unsigned ones are visible.
Last updated: September 16, 2026 · Reviewed by Waqas Sagar, ACA FCCA, chartered accountant (UK) and founder of Remindoo.
Key facts
- Engagement letters built from the firm's own services
- Pricing packages present fee options inside the proposal
- Letters are sent to the client for acceptance
- Acceptance status is tracked per client
- Unsigned engagements are visible before work begins
- A free CPA engagement letter checklist is available under US resources
The problem at a real firm
The letter goes out after the work does
A new S corporation client signs on in late February. The partner agrees the fee on a call, the staff accountant starts the prior-year cleanup the same week, and the engagement letter is drafted in April — after the work it was supposed to cover. If the fee is ever disputed, the firm's position is a phone call nobody wrote down.
Scope lives in someone's outbox
A bookkeeping client asks for sales tax filings, then payroll support, then a 1099 run. Each was agreed in a separate email thread. At renewal nobody can say exactly what the monthly fee was ever meant to include, so the firm either absorbs the extra work or has the awkward conversation with nothing to point to.
Nobody knows who has not signed
In October the firm realizes a extension client from April never returned the signed letter. The return was filed months ago. Chasing a signature for completed work is the weakest position a firm can be in, and it happens because there is no list of unsigned engagements — only a hope that staff remembered.
How Remindoo handles it
| Problem | Workflow in Remindoo | Outcome |
|---|---|---|
| Letters drafted from scratch, late | Build the letter from the firm's services and pricing packages | The letter goes out when the engagement is agreed, not weeks later |
| Scope agreed across email threads | The services and fees in the letter are the ones the client accepted | Scope questions are answered by the document, not by memory |
| Unsigned engagements surface too late | Acceptance status is tracked per client | The firm chases signatures before the deadline, not after the filing |
How it works
Set up your services and pricing packages once
Define what the firm sells — monthly bookkeeping, Form 1120-S preparation, quarterly estimates, 1099 support — and group them into pricing packages so a proposal can present good, better, best options instead of a single take-it-or-leave-it fee.
Build the engagement letter from what they are buying
Create the letter from the services the client is engaged for, so the scope in the document matches the work the firm will actually schedule.
Send it for acceptance
Send the letter to the client. The client reviews and accepts, and the firm is not drafting, printing, scanning, or re-keying anything.
Watch status before work starts
See which clients have accepted and which have not. The unsigned list is where the firm looks before scheduling the work, so nothing starts uncovered.
Want to see this against your own client list and service mix? Book a walkthrough and we will show the workflow end to end, then answer the questions specific to how your firm bills.
Book a demoBuilt by a firm owner who sent the letter after the cleanup was done
I ran my own firm long enough to have made every mistake on this page. The worst was a prior-year cleanup we started on a handshake in February. By the time the letter went out, the work was done and the client questioned the fee. We wrote off time I still remember.
Engagement letters are not admin. Under AICPA standards and every insurer's guidance they are the firm's first line of defense, and they only work if they are signed before the work starts. That is why, in Remindoo, the letter is built from the same services that create the work — and why unsigned engagements are a list, not a hope.
What it changes for your firm
| Area | Word templates and email | With Remindoo |
|---|---|---|
| Time per letter | Copy the last letter, edit it, export, attach, send (illustrative: 30–45 minutes each) | Built from services and packages already in the system |
| Scope disputes | The engagement terms are whatever the email thread implies | The accepted letter states the services and fees |
| Unsigned engagements | Discovered when someone happens to check | Visible as a status the firm can chase |
| Realization | Extra work absorbed because scope was never written down | Out-of-scope requests are visible against the accepted letter |
Who uses it
Partner
Signs off fees knowing the letter went out before the work, and sees unsigned engagements without asking.
Manager
Builds proposals from pricing packages instead of rewriting last year's letter and hoping the fee is right.
Staff accountant
Starts work knowing the scope in the accepted letter is the scope the tasks were created from.
Admin
Sends letters and chases acceptance from one status list instead of a folder of Word files.
Frequently asked questions
What should a CPA engagement letter include?
At minimum: the services in scope, what is excluded, the fee and payment terms, each party's responsibilities, and the period covered. Our free CPA engagement letter checklist under US resources walks through the full list. Remindoo then builds the letter from the services your firm set up, so the scope matches the work that gets scheduled.
How do I get clients to sign engagement letters faster?
Send the letter when the engagement is agreed, not weeks later, and make acceptance easy. In Remindoo the letter goes to the client for acceptance and you can see who has not signed, so your team chases a specific list instead of wondering.
Do I need a new engagement letter every year?
Many firms re-paper annually or whenever scope changes, and professional guidance favors fresh letters when services change materially. Whatever your policy, the practical requirement is the same: the current accepted letter should be findable per client, which is how Remindoo tracks it.
Can I present fee options in a proposal?
Yes. Pricing packages let you group services into tiers, so a proposal can present options — for example, bookkeeping with and without the quarterly estimate review — rather than a single fee the client can only accept or decline.
Is a signed engagement letter required for CPAs?
Requirements vary by state board and service type, but AICPA standards, IRS guidance around practitioner responsibilities, and professional liability insurers all strongly favor written engagement letters. Treat them as mandatory practice even where not legally required — and check your state board's rules.
Related Remindoo features
Send the letter before the work
Start a 60-day free trial and build your first letter from your own services, or book a demo and we will walk through it with your fee structure.