Checklists

Client document checklists
(2026 editions)

Exactly what to ask clients for, item by item — and one click from becoming a request in ClientCollect.

IRS Form 4506-C: IVES Request for Transcript of Tax Return (2026)

Form 4506-C is used to authorize a lender or their agent to obtain your tax transcript directly from the IR...

Mortgage

IRS Form 4506-T: Request for Transcript of Tax Return (2026)

Form 4506-T requests a transcript — a summary — of your tax return from the IRS, at no charge. Lenders, age...

Accounting & tax

IRS Form 8655: Reporting Agent Authorization (2026)

Form 8655 authorizes a reporting agent — often a payroll provider or bookkeeper — to sign and file certain ...

Bookkeeping

IRS Form 8821: Tax Information Authorization (2026)

Form 8821 lets you authorize a person or firm to inspect or receive your confidential tax information for t...

Accounting & tax

IRS Form 8879: e-file Signature Authorization (2026)

Form 8879 is the IRS e-file Signature Authorization — it's how you authorize your tax preparer (an Electron...

Accounting & tax

IRS Form 9465: Installment Agreement Request (2026)

Form 9465 requests a monthly installment plan for a tax balance you can't pay all at once. It lets you prop...

Accounting & tax

IRS Form SS-4: Application for Employer Identification Number (EIN) (2026)

Form SS-4 is the application for an Employer Identification Number (EIN) — the federal tax ID a business, e...

Accounting & tax

IRS Form W-4: Employee's Withholding Certificate (2026)

Form W-4 tells your employer how much federal income tax to withhold from each paycheck. New hires complete...

HR & onboarding

IRS Form W-8BEN: Certificate of Foreign Status (Individuals) (2026)

Form W-8BEN lets a non-US individual certify they're a foreign person and, where a tax treaty applies, clai...

Accounting & tax

IRS Form W-9: Request for Taxpayer Identification Number (2026)

Form W-9 is how a business collects your correct Taxpayer Identification Number (TIN) so it can report the ...

Accounting & tax