How to Compare Tax Advisory Proposals

By AE Tax Advisors | Educational guide | Updated September 2026

Evaluation Guides / Fees, Scope, and Engagement Letters / How to Compare Tax Advisory Proposals

When you have proposals from two or three firms, comparing them can be harder than it looks. They may use different pricing models, describe scope differently, and emphasize different strengths. A simple worksheet approach helps you compare like with like and make a decision with confidence. This guide walks through the steps.

Step One: Standardize the Scope

Start by writing down what you need, using the same words for each firm. For example: prepare federal and state returns for two entities and my personal return, provide a mid-year and a year-end planning meeting, analyze a possible entity change, and respond to routine notices. Compare each proposal to this list and mark what is included, optional, or excluded. Missing items may be added at extra cost or not offered at all.

Step Two: Convert the Fees

Convert each proposal into an annual or project cost for your scope. If a proposal lists hourly rates, estimate the hours and add a range. If it lists per-return fees, add up the returns you need. If it lists a retainer, add any extra fees. Add third-party costs where they are known. Then compare the totals. Include the cost of items you would need to add separately.

Step Three: Compare Qualifications

For each firm, list the people who would work on your matter, their credentials, and their experience with situations like yours. Verify the credentials. See Verifying a Tax Professional's Credentials. Consider whether you will work with the senior person or with someone else.

Step Four: Compare Process and Communication

Note how each firm describes its process, meeting cadence, response times, and points of contact. Compare how they handle notices and examinations. Consider how the descriptions match what you saw in conversations. A firm whose proposal matches what it said in the meeting is showing consistency.

Step Five: Compare Risk and Documentation Approach

Ask each firm how it approaches risk and documentation and note the answers. A firm that describes documentation requirements and risk trade-offs in specific terms is showing a mature approach. A firm that promises results without discussing conditions deserves more scrutiny. See Questions About Strategy Risk and Documentation.

Step Six: Compare Terms

Read the engagement letters for termination, refund, limitation, and dispute resolution terms. Note differences. If a term is unusual, ask about it.

A Sample Worksheet

Create a table with one column per firm and rows for the following:

RowWhat to record
Scope items includedList each item you need and mark included, optional, or excluded
Exclusions and add-onsList anything not covered
Estimated all-in costTotal for your scope, including known third-party costs
People and credentialsNames, credentials, and verification status
Experience with your situationNotes from your questions
Meeting cadence and response timesAs described
Risk and documentation approachNotes
TermsTermination, refund, limitations
Your comfort levelA score from one to five

Weighing the Results

After filling the worksheet, weigh what matters most. Some people put price first, others put experience or communication first. There is no right answer. What matters is that you are deciding based on comparable information.

Trust but Verify

If a proposal contains a claim you cannot verify, such as a savings figure or a special method, ask for support. If the answer is vague, discount the claim.

Do Not Rush

A firm that pressures you to sign quickly is not respecting your process. Take the time you need. You can also ask follow-up questions in writing and see how each firm responds.

Where AE Tax Advisors Fits

If you would like AE Tax Advisors to be one of the firms you compare, the discovery call is the place to start. You can use the worksheet above to compare it with others.

When the Proposals Are Not Comparable

Sometimes proposals are too different to compare directly. One might cover a narrow project and another a broad relationship. In that case, ask each firm to revise its proposal to cover the same scope you defined. Firms are used to this request. If a firm resists providing a comparable proposal, that resistance may tell you something about how it approaches transparency.

Ask About References Carefully

Some firms will connect you with clients willing to talk. If you speak with a reference, ask about communication, follow-through, and how the firm handled a problem. Remember that references are selected by the firm and that a reference's situation may not match yours. Use them as one input among several.

Documenting Your Decision

After you choose, write a short note explaining why. Record the factors that mattered most and any concerns you plan to monitor. Six months later, review the note and ask whether the firm has met your expectations. This habit helps you evaluate the relationship honestly and gives you a basis for raising issues early. It also helps if you later compare the firm with a new option.

Do Not Overlook Fit

A worksheet captures facts, but it cannot fully capture how it feels to work with someone. After the numbers are compared, ask yourself which firm you would feel most comfortable calling with a difficult question. That instinct deserves weight, especially when the proposals are otherwise close.

Frequently Asked Questions

Should I always choose the lowest all-in cost?

Not necessarily. Consider scope, qualifications, and process along with cost.

How many proposals should I gather?

Two or three is usually enough for a meaningful comparison.

Want to Ask Your Questions Directly?

Book a discovery call with AE Tax Advisors to talk through your situation and ask the questions in these guides.

Book a Discovery Call

Educational purposes only. This page is general education and is not tax, legal, or accounting advice. Descriptions of how AE Tax Advisors approaches engagements are general, and the scope, timing, and fees for any engagement are confirmed with you directly. Tax laws change and outcomes depend on individual facts. No result is guaranteed.