The Cost to Outsource Accounting: What You Are Actually Buying
Most small businesses pay $800 to $2,500 a month for a full outsourced accounting function, and the quotes that fall far outside that band usually differ in scope, not efficiency. Here is the ladder of service levels, the real price drivers, and the in-house crossover math.
A guide by Taxstra Tax & Accounting · CPA-led tax strategy for business owners
Written by Bryan Martin, CPA, Managing Partner and Founder of Taxstra. Last updated July 17, 2026.
The Typical Range, and What This Page Covers
The accounting function, not just the tax preparer's bill
"Outsourcing accounting" means handing the recurring finance function, the books, the monthly close, the statements, and often payroll coordination and bill pay, to an external team. That is a different purchase from hiring a CPA to prepare returns, which has its own fee structure covered in our guide to CPA costs. This page prices the function.
The function comes in layers, and nearly every confusing quote you will collect is explained by providers quoting different layers under the same name. The ladder below is the map. Bookkeeping records transactions. Monthly accounting turns them into a closed, reviewed set of financial statements. A controller owns the close calendar, controls, and review. A CFO turns reliable output into forecasts and decisions.
The Outsourced Accounting Ladder (Typical 2026 Ranges)
Forecasts, financing, decisions
Close ownership, review, controls
Close, schedules, reporting, tax-ready books
Transactions and reconciliations
Each layer assumes the one below it works. Market ranges compiled from published 2026 pricing guides; your scope decides where you land.
Each layer assumes the one below it works. Buying CFO dashboards on top of unreconciled books produces confident-looking nonsense, which is why serious providers scope from the bottom up, and why the first question in any quote conversation should be "what shape are the books in today?"
Cost by Service Level
Match the layer to the deliverables before comparing fees
| Service level | Typical monthly cost | Core deliverables | Best fit |
|---|---|---|---|
| Bookkeeping only | $300 to $800 | Categorization, reconciliations, basic reports | Simple operations, owner reviews the numbers |
| Monthly accounting | $800 to $2,500 | Full close, statements, schedules, tax-ready books | Growing businesses that need dependable numbers |
| + Controller review | $1,500 to $5,000 added | Close ownership, controls, reviewed package | Complex close, multiple preparers or entities |
| + CFO layer | $3,000 to $12,000 added | Forecasts, KPIs, financing and decision support | Active growth, debt, or investor reporting |
| One-time cleanup | $200 to $500 per backlogged month | Reconstruction, reconciliation, opening balances | Books behind or unreliable at the start |
Two pricing notes. First, integrated engagements that combine layers usually cost less than the sum of the rows, because one team sharing one data set eliminates duplicated review. Second, the cleanup row is not optional when it applies: most firms, ours included, require books to be current before an ongoing monthly engagement starts, so budget for catch-up work if you are behind. The mechanics are covered on our catch-up bookkeeping page.
What Moves the Price Within the Band
Volume matters, responsibility matters more
Transaction volume and account count. Every bank account and card is a monthly reconciliation; every transaction is a categorization decision. A business processing 500 transactions across six accounts costs materially more to serve than one processing 80 across two. Consolidating accounts is the easiest fee reduction available to you.
Entities and dimensions. Multiple entities, locations, service lines, or job-costed projects multiply the reporting work. Intercompany activity in particular turns one close into three.
Operational scope. Whether the provider runs AP approvals and payments, invoicing and collections, payroll coordination, sales tax filings, and 1099s, or just records what happened. Operating workflows cost more than recording them, and a quote that excludes them is not comparable to one that includes them.
Review level and close deadline. A reviewed close delivered by the 10th is a different product from an automated export whenever it is ready. If a lender, board, or tax planner consumes your numbers, you are buying the reviewed version.
The false low quote
The cheapest proposal usually excludes the review and workflows you assumed were included. 'Monthly financial statements' can mean a software export with no human judgment behind it. Get the deliverable list in writing before comparing any two monthly fees; the low quote that omits payroll entries, accruals, and review is not the same product at a better price, it is a different product.
Industry mechanics matter too: restaurants, e-commerce, and construction carry structurally heavier books at the same revenue. To put rough numbers on your own profile, the bookkeeping cost calculator models volume, accounts, industry, payroll, and sales tax in about a minute.
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Outsourced vs In-House: The Crossover Math
A worked example at $2 million of revenue
Illustrative round numbers. A $2 million home-services company is deciding between a full-time staff accountant and an outsourced engagement. The in-house route: roughly $75,000 salary, plus employer payroll taxes and benefits bringing the loaded cost to about $90,000, plus software, training, and the owner's time supervising work nobody else can check. One person also means single-point-of-failure risk: vacations, turnover, and the awkward fact that the person recording transactions is also the only person reviewing them.
The outsourced route at this size: full monthly accounting with controller review at roughly $1,800 to $2,800 per month, call it $30,000 per year, with a team behind it, built-in segregation between preparer and reviewer, and no coverage gaps. The $60,000 annual difference is not the whole story; the bigger difference is that the outsourced close feeds directly into tax planning, which an isolated staff accountant rarely does.
The honest flip side: in-house wins when the work is genuinely constant and operational. Daily invoicing battles, on-site inventory counts, and same-hour vendor questions favor a person in the building. Many companies land on a hybrid: an in-house operations admin handling daily flow, with the close, review, and tax layers outsourced. The comparison of who should do what inside that hybrid is the subject of bookkeeping vs accounting and DIY bookkeeping vs outsourced.
How to Evaluate Providers
Scope the work in the right order
Run every proposal through four questions, in order:
- Are the historical records current and supportable? If not, get the cleanup scoped as its own project with a books-through date and acceptance criteria, so the recurring fee stays honest.
- What exactly will the provider operate? List the accounts, entities, payrolls, billing systems, AP, AR, loans, and filings. This responsibility map, not revenue, is what a serious provider prices from.
- Who prepares, who reviews, who approves? Named roles. If the provider owns controller-level review, the price and the accountability should both reflect it.
- What does management receive, and when? Close deadline, statement package, schedules, commentary, meetings. Deliverables you can hold someone to.
Define your side of the deal too
Late documents, missing source reports, and unclear approvals are the top reasons engagements underdeliver. A good proposal states client due dates alongside provider due dates. If it does not, ask for them; how the provider reacts tells you how the engagement will run.
How Taxstra Prices Outsourced Accounting
Flat monthly fees, scoped from your responsibility map
Taxstra delivers CPA-led outsourced accounting as one team: bookkeeping, monthly close, tax-ready records, and tax planning coordinated on one data set. Monthly accounting engagements start around $750 per month and scale with the volume and scope drivers described above, quoted flat and upfront after a free consultation, so the number on the proposal is the number on the invoice.
We serve 1,000+ clients nationwide, fully remote. Service details live on the outsourced accounting services page and the outsourced bookkeeping page; if your need is the forward-looking layer instead, start with CFO services.
Frequently Asked Questions
Outsourced accounting costs, answered directly
Related Comparisons
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