Key takeaways
- Send a one-page summary first, then the reports in the same order every month.
- State the accounting basis on every page, because cash and accrual give different monthly numbers.
- Track months of cash and year-to-date vendor payments, since both drive decisions the owner has to make.
- Payroll deposits and Form 941 due dates follow the lookback period and the quarter end, not the calendar alone.
The package and its order
Send one PDF per client per month, in the same order every time: a one-page summary, then the profit and loss, balance sheet, cash flow statement, AR aging, AP aging, bank reconciliation status, and the payroll and sales tax summary. An owner who knows the order stops hunting for the number that matters.
Print the period and the accounting basis at the top of every page, such as Month ended October 31, 2026, accrual basis. Confirm the basis in writing before the first report. Cash and accrual disagree in the same month: an annual insurance premium paid in October is all expense in October on a cash basis, but one twelfth per month on an accrual basis, so a cash-basis trend misleads.
Profit and loss: is the month covering its costs
The P&L answers one question: did revenue cover cost of sales and operating expense. Show the current month, the same month last year, and the trailing three-month average. One month is noise for most small businesses, and the average shows whether a change is real.
Flag any expense line that runs well above its trailing average, and send the client the question in writing. For software that jumps to roughly twice its average, the wording is “What is the October software charge for, and is it an annual renewal?” The usual answers are an annual renewal billed in one payment or a seat added to the wrong account. The firm sets the flag level and writes it into the engagement letter.
Keep loan principal, owner draws and sales tax remittances out of operating expense. A loan payment coded to expense can turn a profitable month into a loss on paper.
Failure mode: uncategorized transactions sit in a suspense account, so the P&L looks complete when it is not. Fix: print the uncategorized balance on the summary page. The target is zero, and anything else means the P&L is incomplete.
Balance sheet: what must tie out
The balance sheet shows what the business owns and owes on the last day of the month. Check that cash ties to the reconciliation, card and loan balances tie to their statements, and owner equity moves only by the amounts the owner expects.
A balance sheet can balance and still be wrong. Check that every account named Uncategorized, Suspense or Clearing is at zero before the package goes out. Decision rule: if sales tax payable still carries a balance for a period the state has already been paid for, the remittance was posted to the wrong account. Find it before the next close, because the error repeats.
Cash flow: how many months of cash the business has
Use the cash flow statement to produce one number: months of cash on hand. Divide ending cash by average monthly cash out over the last three months. If ending cash is four times average monthly cash out, the answer is 4.0 months. Show the last six months beside it.
Agree on a floor with the owner in writing. Two to three months is common for a service business with monthly payroll, but it is a business choice, not an IRS or accounting rule. Pass-through owners also use year-to-date profit from this page to size quarterly estimated tax payments, which the IRS lists on Form 1040-ES.
Failure mode: the statement does not tie to the bank because a transfer between the client's own accounts is counted as an inflow on one side only. Fix: exclude transfers from both sides and tie ending cash to the bank statement before sending.
AR and AP aging: who owes whom
Age receivables and payables into current, 1 to 30, 31 to 60, 61 to 90 and over 90 day buckets, measured from the invoice date. Show the three largest balances by name.
Decision rule: any customer balance over 60 days gets a collection call that week, and anything over 90 days goes to the owner with a recommendation to stop work or write it off. Unapplied payments and credit memos inflate the 1 to 30 day bucket, so list them on a separate line that still ties to the balance sheet.
The payables aging answers which bills to pay this week. Add year-to-date payments per vendor. Payments made in 2026 are generally reportable on Form 1099-NEC once they reach $2,000 for the year, so a vendor approaching $2,000 with no Form W-9 on file needs the request now, not in January.
Bank reconciliation status
Use one row per account: statement ending balance, book balance, outstanding checks, deposits in transit, the difference, the date reconciled and who reconciled it. The difference must be zero. Anything else is an open item with an owner and a date.
Decision rule: an account not reconciled by business day 10 after month end appears on the summary as “not reconciled”, with the reason, and stays there until it is cleared. Put that deadline in the engagement letter.
Failure mode: a zero difference reached with a plug entry. Fix: list every adjusting entry made during reconciliation with its amount, date and reason.
Payroll and sales tax summary
Show gross wages, employee withholding, employer Social Security and Medicare, unemployment taxes, deposits made in the month and the liability still owed. Match the deposit total to the payroll provider's deposit report to the cent.
Deposit timing depends on the lookback period. For Form 941 filers, the lookback is the 12 months starting July 1 of the second preceding year, so 2026 deposits look back to July 1, 2024. An employer that reported $50,000 or less of taxes in that lookback is a monthly depositor, and deposits for payments made in a month are due on or before the 15th day of the following month. December 2026 payroll is therefore due January 15, 2027. If the liability reaches $100,000 on any day, the rule requires a deposit by the next business day.
Form 941 is due April 30 for January through March, July 31 for April through June, October 31 for July through September, and January 31 for October through December. The fourth-quarter 2026 return is due January 31, 2027, a Sunday, so the form may be filed on the next business day, February 1, 2027.
Sales tax is set by the state. Show tax collected by jurisdiction, taxable and exempt sales, tax remitted, the payable at month end and the next due date from the state revenue site.
One-page summary layout
Build the summary on one page, in this order, top to bottom.
Header: client name, month ended, accounting basis, prepared by and date sent.
Key numbers row: net income for the month and year to date, cash at bank tied to the statement, and months of cash on hand.
Movement row: revenue against last month and last year, the three largest expense changes each with the client's one-line reason, and receivables over 60 days by customer name.
Open items row, each with an owner and a date: uncategorized transactions, unreconciled accounts, payroll deposits due in the next 30 days, the next sales tax due date, and vendors at or near $2,000 year to date without a Form W-9.
Footer: pages 2 to 8 hold the full package, and one question for the owner, so the reply stays short.
Records and cadence
Keep each package in the close binder. The IRS says to keep business records for 3 years and employment tax records for at least 4 years after the tax is due or paid, whichever is later. For a client with payroll, keep the whole package for 4 years.
Set the cadence in the engagement letter: bank feeds categorized by business day five, reconciliations by business day ten, package sent by business day twelve. These are firm choices, not legal rules, but a written date stops the package from slipping into tax season.
Failure mode: open items never get answered. Fix: give each one a due date on the summary, and show it as past due on the next package.