Reading a bookkeeping quote before you sign the engagement letter

Why can't anyone tell you whether $400 is normal?

Because there is no independent benchmark to check it against. Price ranges for bookkeeping are published by the firms that sell bookkeeping, and the same monthly figure buys very different work: at one firm, categorized transactions and a reconciled bank feed; at another, that plus payroll filings, contractor reporting and a year of catch-up. Compare the scope first and the number second.

Much of what varies from one scope to the next comes from federal filing machinery that switches on at thresholds the practice either crosses or does not: whether it runs payroll, how much it pays contractors, and how many information returns it files in a year. The rest is set by how many months of records sit unreconciled on the day the engagement starts. All four are knowable before the first call, and the first three carry deadlines that exist whether or not the quote itemizes them.

A monthly bookkeeping fee is one of the recurring lines in the 12-month runway, and it is one of the few that can be sized by working through the practice's own obligations instead of by collecting three more quotes.

What the cash method already takes off the bill

Quite a lot, if the practice sells only services. The cash method reports income when it is received and deducts expenses when they are paid, while the accrual method generally reports income in the year it is earned regardless of when payment arrives 1Ref 1Internal Revenue Service (2022).Publication 538 (01/2022), Accounting Periods and Methods.The cash method's report-when-received rule against the accrual method's report-when-earned rule, and the limit that the accrual method is required only where producing, buying or selling merchandise is an income-producing factor for the business.. The accrual requirement attaches to merchandise: it binds only where producing, buying or selling it is an income-producing factor for the business 1Ref 1Internal Revenue Service (2022).Publication 538 (01/2022), Accounting Periods and Methods.The cash method's report-when-received rule against the accrual method's report-when-earned rule, and the limit that the accrual method is required only where producing, buying or selling merchandise is an income-producing factor for the business., a line a service practice carrying no inventory does not cross.

That takes real monthly work off the engagement. There are no receivables to age, no revenue to match back to a period it was not collected in, and no unpaid invoice to write off in December. A bad debt deduction requires the amount to have been included in income first, and on the cash method an unpaid fee never was 2Ref 2Internal Revenue Service (2026).Topic no. 453, Bad debt deduction.The narrow bookkeeping point that a cash-method practice has no bad-debt deduction for an unpaid fee, because the deduction requires the amount to have been included in income first.. A fee discounted at the front desk works the same way: the discounted portion was never booked as income, so there is nothing to deduct.

But a bookkeeper can quote an accrual-style monthly close on a cash-method practice anyway, and some do, particularly where the practice sells prepaid visit packages or memberships that a cash ledger records the day the card clears. Ask which method the engagement assumes and what the monthly close contains. A close built on deferrals and accruals is more work than categorizing and reconciling cash as it moves, and the difference belongs in the price rather than in the first surprise invoice.

The first employee resets the engagement

One W-2 employee adds a fixed federal calendar to the books. Form 941 is due quarterly on April 30, July 31, October 31 and January 31 3Ref 3Internal Revenue Service (2026).Instructions for Form 941 (Rev. March 2026), Employer's QUARTERLY Federal Tax Return.The four fixed quarterly Form 941 due dates, and the $50,000 lookback threshold that separates a monthly depositor from a semiweekly depositor., four deadlines a year that exist whether the payroll is one person or forty. Deposits run on their own schedule underneath those filings, and that schedule is set by a lookback period rather than by the payroll the practice is running now.

The lookback period is the four quarters ending the previous June 30 4Ref 4Internal Revenue Service (2026).Topic no. 757, Forms 941 and 944 – Deposit requirements.The lookback period defined as the four quarters ending the previous June 30, the 15th-of-the-following-month monthly deposit due date, the $100,000 next-day deposit rule, and the 8 p.m. Eastern EFTPS scheduling cutoff.. Report $50,000 or less of tax in that window and the practice deposits monthly; report more than $50,000 and it deposits semiweekly 3Ref 3Internal Revenue Service (2026).Instructions for Form 941 (Rev. March 2026), Employer's QUARTERLY Federal Tax Return.The four fixed quarterly Form 941 due dates, and the $50,000 lookback threshold that separates a monthly depositor from a semiweekly depositor., with deposits landing within days of each payroll run instead of once a month. A monthly depositor's deposit is generally due by the 15th day of the following month, and an EFTPS payment has to be scheduled by 8 p.m. Eastern the day before it is due 4Ref 4Internal Revenue Service (2026).Topic no. 757, Forms 941 and 944 – Deposit requirements.The lookback period defined as the four quarters ending the previous June 30, the 15th-of-the-following-month monthly deposit due date, the $100,000 next-day deposit rule, and the 8 p.m. Eastern EFTPS scheduling cutoff.. One rule sits outside the schedule entirely: accumulate $100,000 or more of tax liability on any day and the deposit is due the next business day 4Ref 4Internal Revenue Service (2026).Topic no. 757, Forms 941 and 944 – Deposit requirements.The lookback period defined as the four quarters ending the previous June 30, the 15th-of-the-following-month monthly deposit due date, the $100,000 next-day deposit rule, and the 8 p.m. Eastern EFTPS scheduling cutoff..

So the deposit frequency the practice will be on next year is already being set by what it reports this year.

Two questions belong in the quote before the first payroll run. Who files the 941, the bookkeeper or a payroll provider. And who carries responsibility for the deposits landing on time. Where the answer is a payroll provider, the bookkeeping engagement is still recording payroll journal entries and reconciling the tax payments against the bank, and that work has a price whether or not it appears as its own line.

What puts a 1099 line on the quote

Two separate rules, and they move independently of each other. The first decides who gets a form: the reporting threshold for nonemployee compensation is $600 for payments made before 2026 and $2,000 for payments made in 2026 5Ref 5Internal Revenue Service (2026).Am I Required to File a Form 1099 or Other Information Return?.The Form 1099-NEC reporting threshold for nonemployee compensation and its change from $600 for payments made before 2026 to $2,000 for payments made in 2026.. The second decides how the forms are transmitted. Once a filer is required to file 10 or more information returns during the year, e-filing is mandatory 6Ref 6Internal Revenue Service (2025).General Instructions for Certain Information Returns (2025).The mandatory e-file threshold of 10 or more information returns in a year, counted in aggregate across all return types rather than per form., and that changes what software or service the engagement needs.

The 10 is counted in aggregate across every information return type combined, not 10 of any single form 6Ref 6Internal Revenue Service (2025).General Instructions for Certain Information Returns (2025).The mandatory e-file threshold of 10 or more information returns in a year, counted in aggregate across all return types rather than per form.. A practice with a few 1099-NECs, a couple of W-2s and one other return can cross the line without ever filing ten of anything.

Fewer contractor relationships will generate a form for 2026 payments than for 2025 payments. The tracking work does not shrink with the threshold, though, because whether a given contractor crosses $2,000 by December is not knowable in March. Collect a Form W-9 before the first payment to anyone the practice pays as a contractor, and let the year-end count decide who gets a form.

How far back a catch-up engagement should reach

As far back as the period of limitations on the returns those records support, and usually no further. Records supporting an item of income or deduction are generally kept until the period of limitations for that return runs out 7Ref 7Internal Revenue Service (2024).Publication 583 (12/2024), Starting a Business and Keeping Records.The general rule that records supporting an item of income or deduction are kept until the period of limitations for that return runs out, and the separate employment tax record floor of at least 4 years after the tax becomes due or is paid., which bounds a cleanup instead of leaving it open. Employment tax records carry their own floor underneath that: at least 4 years after the tax becomes due or is paid 7Ref 7Internal Revenue Service (2024).Publication 583 (12/2024), Starting a Business and Keeping Records.The general rule that records supporting an item of income or deduction are kept until the period of limitations for that return runs out, and the separate employment tax record floor of at least 4 years after the tax becomes due or is paid..

So the first thing a catch-up quote turns on is whether the practice has ever run payroll, even for a single quarter. A practice that has run payroll holds a longer mandatory record tail than a solo owner who never hired, and a bookkeeper quoting cleanup without that answer will price for the longer one.

Catch-up is commonly quoted apart from the monthly fee and billed by the month of history rebuilt, which is why a single number covering both is worth splitting before signing. Ask how many months the quote assumes, what the practice is expected to supply for them, and what the monthly fee becomes once the backlog is closed.

Reading the quote before you sign the engagement letter

Read it as a scope document with a price attached. A common convention is for an engagement letter to name what is included each month, what is billed separately, what the practice supplies and by when, and how either side ends the arrangement. Everything in the table below is knowable before the first invoice, and every row on it either belongs to the bookkeeper or stays with the owner.

Sales tax filing turns up on some quotes as a standard line. Whether a licensed clinical service sits inside it is a question for the state revenue agency, and a return the practice will never file is worth striking from the scope before it is priced.

The same reading works on the PLLC formation quote and on any other fixed-price professional engagement: whatever was said on the call, the scope the document names is what the price is buying. The habit transfers to reading a payer contract too, if the practice ever bills insurance.

Ask for the scope in writing, ask which items fall outside it and are billed separately, and ask what the monthly price becomes at the first employee. Put those answers in the engagement letter, where they are enforceable.