Intake Forms for Accountants: Tax Season Client Onboarding

By Daniel Akselrod · July 12, 2026

January hits and your phone starts ringing. New clients want their taxes done. Existing clients have “a few changes” from last year. By February, you’re drowning in disorganized shoeboxes of receipts, missing W-2s, and clients who forgot to mention they started an LLC in September. Every missing document is a follow-up call. Every follow-up call is fifteen minutes you could have spent preparing returns. A proper intake form captures all of this before the first meeting.

Why Tax Season Intake Is Different

Tax preparation intake isn’t like hiring a plumber or seeing a doctor. The client relationship is cyclical — the same clients come back every year, but their situations change. Last year they were a W-2 employee. This year they’re freelancing and need a Schedule C. Last year they were single. This year they’re married with a baby. Your intake form needs to capture both the baseline (entity type, filing status, dependents) and the delta (what changed since last year).

The Accounting intake form set handles this with a “Changes From Prior Year” section that specifically asks about marriage/divorce, new dependents, home purchase/sale, business formation, job changes, and major financial events. This section alone eliminates most of the “Oh, I forgot to mention” calls that plague tax season.

Document Checklists Save Hours

The single most valuable section on an accountant’s intake form is the document checklist. Instead of hoping the client brings everything, you give them a list: W-2s, 1099s (NEC, INT, DIV, B, R, MISC), K-1s, mortgage interest statement (1098), property tax records, prior-year return, state ID copies, Social Security cards for new dependents, health insurance Form 1095, student loan interest (1098-E), and tuition statements (1098-T).

Present these as checkboxes the client marks as they gather each document. When they arrive for their appointment, you can glance at the checklist and immediately see what’s missing. “I see you checked everything except the K-1 from your rental property — do you have that yet?” is a five-second conversation instead of a fifteen-minute phone call two weeks later when you’re ready to file and realize you’re missing a schedule.

Entity Type and Filing Status

Your intake form needs to clearly capture filing status (single, married filing jointly, married filing separately, head of household, qualifying surviving spouse) and entity type if the client has a business (sole proprietorship, single-member LLC, multi-member LLC, S-corp, C-corp, partnership). Getting the entity type wrong doesn’t just affect the return — it affects which forms you file, which deadlines apply, and whether estimated payments were due.

For business clients, add fields for EIN, state tax ID, fiscal year end (if not calendar year), payroll provider, estimated tax payments made, and whether the entity made any elections during the year (S-corp election, 199A, bonus depreciation). These details save you from digging through prior-year returns to reconstruct what you should have captured at intake.

Engagement Scope

Every accountant has had the client who drops off a personal return and then says, “Oh, and I need the LLC done too.” Your intake form should clearly define the engagement scope: which returns are included, what services are covered (preparation only, preparation plus planning, audit representation), and what’s excluded. A checkbox list of services with pricing is more effective than a narrative description.

This is especially important for firms that offer both compliance (tax prep) and advisory (tax planning, bookkeeping, payroll) services. If the intake form doesn’t distinguish between the two, you end up doing advisory work at compliance prices because the scope was never defined.

New Client vs. Returning Client Forms

Smart firms use two versions of their intake form. New clients get the full version: personal information, business information, prior preparer information, document checklist, filing history, and engagement terms. Returning clients get an update form: changes from prior year, updated document checklist, and confirmation that their contact information is still current. The returning client form takes three minutes to complete instead of fifteen, which clients appreciate and which reduces the administrative burden on your staff.

PTIN and Circular 230 Considerations

If you’re a paid preparer, your intake documentation matters for Circular 230 compliance. You need reasonable inquiry into the client’s facts. Your intake form is evidence of that inquiry. If the IRS questions a position you took on a return, your signed intake questionnaire — showing that you asked about the relevant facts and the client provided specific answers — demonstrates due diligence. This is why the intake form belongs in the client file permanently, not in the recycling bin after data entry.

For related forms, Tax Preparation forms cover the return-specific side, and Bookkeeping forms handle the monthly/quarterly engagement intake. For the advisory and planning side, see the Financial Planning forms. And our accounting intake forms landing page has the full breakdown of what’s included in each set.

For more on the general principles of good intake form design, read our 2026 best practices guide and how to onboard new clients faster.