The Client Document Checklist Every Bookkeeping Firm Needs

Every bookkeeping firm has a document checklist — usually scattered across email templates, spreadsheets, and staff memory. A single master checklist, adapted per client, is what turns document collection from a monthly scramble into a routine.

Onboarding documents (once per client)

• Prior-year tax returns and financial statements.
• Formation documents and EIN confirmation.
• Bank and credit card account list, with read-only or statement access.
• Payroll provider details and most recent payroll reports.
• Sales platforms and payment processors in use (POS, e-commerce, Stripe, Square, Shopify).
• Loan agreements and amortization schedules.
• The prior accountant's handoff, where one exists.

Monthly close documents

• Bank statements for every account, even with a bank feed connected.
• Credit card statements, including owner cards used for business.
• Payroll registers and tax liability reports.
• Sales and payout reports from each platform.
• Receipts and invoices above your documentation threshold.
• Loan and line-of-credit statements.
• Answers on uncategorized transactions.

Year-end additions

• W-9s for contractors who will need a 1099.
• Year-end loan statements and interest totals.
• Fixed asset purchases with invoices and in-service dates.
• Owner contributions and distributions.
• Inventory counts, where significant.

Keep it client-specific

The master list is a starting point. For each client, delete what doesn't apply and add what's unique to them — their accounts, their platforms, their quirks. Record items that don't apply (an account with no activity, say) so they aren't requested again next month. A checklist that shrinks to fit the client gets answered; a generic one gets ignored.

For the full monthly workflow, read the month-end close client document checklist.