Monthly Bookkeeping Checklist for Solo Bookkeepers: Free Template 2026
Monthly Bookkeeping Checklist for Solo Bookkeepers: Free Template 2026
If you're running a solo bookkeeping practice, your monthly close process is either your biggest competitive advantage or your biggest liability. Clients who get consistent, clean financials every month stick around. Clients who get inconsistent reports with unexplained variances start shopping for someone new.
Here's the complete monthly bookkeeping checklist that professional bookkeepers use — adapted for solo practitioners who need to be both the preparer and the reviewer.
Before You Start: Pre-Close Setup
Do this on the 1st of each month before touching any client files:
- ☐ Confirm all bank and credit card feeds are connected and current
- ☐ Check for any disconnected integrations (payment processors, payroll, etc.)
- ☐ Send document request to client for any missing receipts or explanations
- ☐ Note any client-specific issues from last month's close
Week 1: Transaction Review and Coding
Bank Account Review
- ☐ Review all bank transactions for the month
- ☐ Categorize any uncategorized transactions
- ☐ Flag transactions that need client clarification
- ☐ Apply bank rules for recurring items
- ☐ Match transactions to invoices or bills where applicable
Credit Card Review
- ☐ Review all credit card transactions
- ☐ Categorize business expenses
- ☐ Flag any personal expenses mixed in (common issue)
- ☐ Verify credit card payment was recorded correctly
Income Review
- ☐ Verify all invoices have been recorded
- ☐ Check that payments received match open invoices
- ☐ Review for any undeposited funds hanging
- ☐ Confirm revenue is recorded in the correct period
Week 2: Reconciliations
Reconciliation is the most important step in the close. It's your proof that the books match reality.
Bank Reconciliations
- ☐ Reconcile each business checking account
- ☐ Reconcile each savings account
- ☐ Investigate and clear any outstanding checks older than 60 days
- ☐ Document any reconciling items over $500
Credit Card Reconciliations
- ☐ Reconcile each business credit card to the statement
- ☐ Confirm ending balance matches statement
- ☐ Verify minimum payment or full payment was made
Other Account Reconciliations
- ☐ Accounts receivable aging reviewed — flag anything over 30 days
- ☐ Accounts payable aging reviewed — confirm no past-due bills
- ☐ Payroll liability accounts reconciled (if in scope)
- ☐ Sales tax liability reconciled (if applicable)
Week 2-3: Adjusting Entries
Standard Adjustments
- ☐ Depreciation entries posted (if monthly)
- ☐ Prepaid expense amortization
- ☐ Accrued expenses reviewed and updated
- ☐ Deferred revenue adjustments (if applicable)
- ☐ Loan interest calculations and postings
Payroll-Related (if in scope)
- ☐ Payroll journal entries posted and reconciled
- ☐ Benefits accruals updated
- ☐ 401k or retirement contributions posted
Week 3: Review and Quality Check
This is the step most solo bookkeepers skip. Don't. Catching errors now is 10x cheaper than explaining them to the client — or worse, to the IRS.
P&L Review
- ☐ Compare revenue to prior month and prior year — flag unexplained variances over 10%
- ☐ Review gross margin — should be consistent with business model
- ☐ Check each expense line for anomalies
- ☐ Verify owner's compensation is consistent with agreement
- ☐ Check for any transactions coded to wrong accounts
Balance Sheet Review
- ☐ Verify cash balances match reconciled amounts
- ☐ Check AR aging hasn't grown unexpectedly
- ☐ Verify fixed assets haven't changed unexpectedly
- ☐ Check loans payable balances match amortization schedules
- ☐ Owner's equity section makes sense
Week 3-4: Reports and Delivery
Standard Monthly Package
- ☐ Profit & Loss Statement (current month + YTD)
- ☐ Balance Sheet (as of month end)
- ☐ Cash Flow Statement (if included in engagement)
- ☐ AR Aging Summary (if applicable)
- ☐ AP Aging Summary (if applicable)
Report Review Before Sending
- ☐ Does total revenue make sense for this business?
- ☐ Are there any negative balances that don't make sense?
- ☐ Is the net income positive/negative consistent with expectations?
- ☐ Are the reports formatted correctly for this client?
Client Communication
- ☐ Send reports with a brief narrative (2-3 sentences on key points)
- ☐ Note any action items needed from the client
- ☐ Flag anything that needs their attention before next quarter
Post-Close: Admin and Tracking
- ☐ Update your client tracker with close completion date
- ☐ Note any open items that carry to next month
- ☐ Invoice client (if monthly billing)
- ☐ File bank statements and reconciliation reports
Scaling This System
When you're working with 1-3 clients, you can run this process from memory. At 5-10 clients, you need a systemized version. The bookkeepers who scale past 15 clients without hiring typically use one of two approaches:
Client-specific checklists: A version of this template customized for each client, stored in a shared folder or practice management tool. Every client has their own quirks — document them once, follow them every month.
Standardized templates with exception notes: One master template with a section for client-specific notes. Faster to manage, slightly less customized.
Download the Template
The Operator Atlas Bookkeeping Ops Pack includes a fully formatted monthly bookkeeping checklist in Google Sheets and Excel, with separate tabs for different client types (service business, product business, restaurant, etc.) and a tracker for close status across your entire client roster.