Top 10 Outsourced Accounting Firms in the USA: Pricing and Services

The best outsourced accounting services for a US business earning $1 million to $10 million start at $99 to $1,250 a month. The low end buys bookkeeping. The high end buys a controller who closes your books on an accrual basis.

The in-house comparison is steep. One bookkeeper at the national median costs about $73,800 a year with benefits. This guide ranks 10 firms by fit for that revenue band. Each entry lists the outsourced accounting services the firm sells, its starting price and the gap to check before you sign.

How These 10 Outsourced Accounting Firms Were Chosen and Ranked

Third-party accounting services are finance functions an outside firm runs inside your software, from bookkeeping to the month-end close and tax filing. The ranking below tests fit for US operating businesses with $1 million to $10 million in revenue. Every fact comes from each firm’s public website, checked on 1 Oct 2026.

Each firm was scored on five points:

• It sells to operating businesses, not white-label work to CPA firms.
• It publishes a starting price or says plainly that pricing is custom.
• It offers controller-level accrual work, not only bookkeeping.
• It names the software it supports, such as QuickBooks Online, Xero, NetSuite or Sage Intacct.
• It states whether it is a CPA firm.

Top 10 Outsourced Accounting Firms in the USA for 2026

The top accounting outsourcing companies for a growing business differ on three things: who does the work, which accounting basis they use and how the price scales. Here is each firm, with its best fit and its catch.

1. GATP Solutions: Fixed-Fee Outsourced Accounting From Under $250 a Month

GATP Solutions is best for a $1 million to $10 million business that wants bookkeeping, payroll, tax planning and a dedicated CFO under one fixed monthly fee. It has served 7-figure businesses in the US, Canada and Australia since 2012.

Its three plans scale by how often the books are updated and how often you meet the CFO.

• Every plan: book setup, backlog clean-up, bank, PayPal and card reconciliations, and unlimited email support.
• Plus and Premium add: bill payment, receivable collection, payroll, sales tax, a health check-up call and CFO services.
• Premium adds: federal and state tax filing.
• Terms: from less than $250 a month, on an annual subscription with 30 days’ notice. Plan changes start on the first of the next month.
• Setup: one dedicated bookkeeper backed by a team, on QuickBooks Online or Xero. The client owns the file and keeps it on exit.

In one engagement, AI checks on payroll and 1099 data cut a consulting firm’s month-end close from 20 days to 7 days.

2. inDinero: Controller-Led Accrual Accounting on QuickBooks Online or NetSuite

inDinero is best for multi-entity companies that need a dedicated controller and team on QuickBooks Online or NetSuite.

• Essential: from $750 a month for simpler financial structures.
• Growth: from $1,250 a month, with accrual accounting managed by experienced controllers.
• Software: QuickBooks Online or NetSuite, with multi-entity consolidation.
• Catch: its most complex tier is priced only after a call.

3. Pilot: Expense-Based Pricing With AI Bookkeeping

Pilot is best for companies that want a bookkeeping price tied directly to monthly expenses.

• Essentials: $99 a month for up to $100,000 in monthly expenses, cash basis, with AI doing the categorization.
• Core: from $299 a month at $9,000 of monthly expenses, $559 at $30,000 and $799 at $100,000, billed annually. Core adds a US-based bookkeeper and the option of accrual books.
• Tax: partnership and S corporation returns from $2,000 a year, C corporation returns from $2,450.
• Catch: companies with more complex structures move to a Custom plan priced by quote.

4. Bookkeeper360: Weekly Bookkeeping With a Fractional CFO Tier

Bookkeeper360 is best for owners who want weekly bookkeeping and can add tax or a fractional CFO line by line.

• Bookkeeping: Monthly from $399 a month and Weekly from $599 a month.
• Setup: onboarding and prior-period cleanup from $1,000 per project.
• Advisory: business tax from $1,000 a year, and a fractional CFO or consolidation reporting from $2,000 a month each.
• Catch: add-ons stack fast, so price the full bundle before comparing.

5. Baker Tilly: Managed Accounting From a National CPA Firm

Baker Tilly is best for companies near $10 million in revenue that want a national CPA firm running transactional, controller and CFO work.

• Services: accounts payable, 1099 creation and filing, reconciliations, cash management, financial statements, control design, budgets and cash-flow analysis.
• Software: QuickBooks and Sage Intacct are among its listed cloud alliances.
• Bundle: Baker Tilly Advantage combines accounting, tax, human resources and payroll.
• Catch: no public price, so expect a scoped proposal.

6. GrowthForce: Controller and Management Accounting for Growing Firms

GrowthForce is best for growing businesses and nonprofits that want controller and management accounting from one team.

• Services: advanced bookkeeping, controller services and management accounting with KPIs.
• Experience: the firm cites over 35 years of outsourced accounting work.
• Pricing: custom quote only.
• Catch: its site states that GrowthForce is not a CPA firm, so tax returns need a separate preparer.

7. Supporting Strategies: Local Teams for Bookkeeping and Back-Office Operations

Supporting Strategies is best for owners who want a local team running bookkeeping and back-office operations, offered since 2004.

• Services: bookkeeping, invoicing, collections, expense approval and payroll administration.
• Reporting: expanded packages add a weekly cash flash, forecasting, and class and location reporting.
• Pricing:
• Catch: the site states it is not a CPA firm, so tax work goes elsewhere.

8. Paro: A Marketplace for Fractional Controllers and CFOs

Paro is best for a company that needs one senior finance skill, such as a fractional controller or CFO, matched from its expert network.

• Services: full-charge bookkeeping, controller leadership, FP&A, fractional CFO work, business tax preparation and transaction advisory.
• Pricing: no public rate card. Each engagement is scoped.
• Catch: ask who covers the work if your matched expert leaves.

9. Bench: Flat Monthly Bookkeeping for Simpler Books

Bench is best for companies with simple transaction flows that want a flat monthly fee and a dedicated bookkeeper.

• Plans: Bookkeeping at $399 a month and Bookkeeping plus Tax at $649 a month.
• Light plan: $199 a month, limited to businesses with revenue of $250,000 or less.
• Fractional bookkeeper: $55 an hour plus a $1,200 one-time onboarding fee, working inside your QuickBooks.
• Catch: at $1 million or more in revenue, confirm accrual and payables support before signing.

10. 1-800Accountant: Tax-First Packages With a Bookkeeping Add-On

1-800Accountant is best for owner-run companies that care most about the tax bill and want bookkeeping added at the top tier.

• Plans: Tax Advisory at $209, Starter at $299 and Business Complete at $469 a month, all billed annually.
• Business Complete: bookkeeping with a dedicated bookkeeper starting at 75 monthly transactions, owner payroll and quarterly estimates.
• Catch: on 1 Oct 2026 its pricing page still described 1099 prep for vendors paid $600 or more. The 2026 threshold is $2,000.

How Much Does It Cost to Outsource Accounting? Outsourced Accounting Firms Pricing Compared

Outsourced accounting costs $99 to $1,250 a month at the published starting points checked on 1 Oct 2026, and four firms quote only after a call. The final quote rises with transaction volume, entity count and the need for accrual statements.

A published price is a floor, not a quote, because volume sets the final fee.

In-House Accountant vs Outsourced Firm: The 2026 Cost Arithmetic

Outsourcing costs less than an in-house hire at every published price on this list. The bookkeeper cost below starts from the BLS May 2025 median wage of $50,670.

The accountant figure starts from the BLS median for accountants and auditors, $83,680. Both are loaded with the benefit share from the BLS Employer Costs for Employee Compensation, June 2026.

The margin survives a high quote. If a controller-led proposal lands at three times the starting price, $45,000 a year, it still costs 36 percent of one loaded accountant.

How to Outsource Accounting Services Without Losing Control of Your Books

Outsourcing accounting is a handover of process, data and deadlines. Each step below names the mistake it prevents.

1. Write down the close you need. State cash or accrual and the day each month the reports arrive. Pilot Core, for example, delivers reports on the 10th business day. This prevents buying bookkeeping when your lender wants accrual statements.
2. Count your volume first. Bring monthly expenses, transaction counts and entity numbers. This prevents a quote that jumps after onboarding.
3. Confirm who owns the software file. This prevents losing years of history when you switch firms.
4. Ask for the written security plan. This prevents handing payroll and bank data to a firm with no documented controls.
5. Check who signs your tax return. Two firms on this list state they are not CPA firms. This prevents assuming your bookkeeper will also file.
6. Run one parallel close. Keep the old process for a month while the new firm closes the same period. This prevents a missed payroll or sales tax filing in the switch month.

The right questions also change by industry.

E-Commerce: Shopify and Stripe Payouts Need One Clearing Account Each

Online sellers get paid net of fees and reserves, but a processor’s Form 1099-K reports gross sales. Books that record only net deposits start below the processor’s figure.

Ask the firm to book gross sales, fees, reserves and payouts separately for each processor. GATP built that structure for a direct-to-consumer brand paid through two processors, with a weekly review of each clearing account. The full ecommerce payment reconciliation walks through the five controls.

Real Estate: Rent Roll to Ledger Mapping by Property and Entity

Property owners need each rent roll tied to deposits by property, and each property tied to the right entity. A firm that books one combined ledger cannot produce lender-ready statements per property.

Ask how the firm consolidates entities and what it charges. Bookkeeper360 lists consolidation reporting from $2,000 a month.

Clinics: Insurance Remittances and Payroll Tax Records

Clinics receive insurance payments in batches that rarely match a single visit. The firm should match each remittance to the deposit and the patient balance it clears.

Payroll is the second risk. The IRS record retention rules require employment tax records for at least 4 years, so ask who stores and exports them.

What Changed in 2026 for Businesses Hiring Outsourced Accounting Firms

Three 2026 changes affect what an outsourced accounting firm must get right for you, and each is a fair sales-call question.

• Form 1099-NEC threshold. The IRS Form 1099-NEC instructions raise the filing threshold from $600 to $2,000 for payments made after 31 Dec 2025. Ask which threshold the firm’s 1099 process uses.
• Form 1099-K threshold. The IRS confirmed in IR-2025-107 that the threshold reverted to $20,000 and more than 200 transactions.
• SOC 2 reports. The AICPA’s SOC resource page says it is looking into allegations about a compliance vendor offering SOC services, and it issued SOC 2 guidance to peer reviewers in May 2026. Ask which CPA firm issued the report.

Security plans are the fourth check. IRS Publication 4557 says tax return preparers must create a written information security plan under the FTC Safeguards Rule. A firm that prepares your returns should be able to confirm it has one.

Conclusion: Choosing the Best Outsourced Accounting Services in 2026

The best outsourced accounting services for a $1 million to $10 million business start at $99 to $1,250 a month, far below the $73,800 to $123,900 cost of one loaded in-house hire. Your volume, entity count and need for accrual statements decide where your quote lands, so bring those numbers to every call.

Get a fixed-fee quote sized to your books. Share your monthly expenses, entity count and current software. GATP reviews your last close, your 1099 process and your accounting basis. You get back which plan fits, what it costs and what to fix before handover. Thirty minutes, one clear answer.

Book a free consultation.

Frequently Asked Questions About Outsourced Accounting Firms

What is the average cost of outsourcing accounting services?

Published starting prices for outsourced accounting run from $99 to $1,250 a month across the 10 firms above, checked on 1 Oct 2026. Bookkeeping-only plans sit at the low end. Controller-led accrual accounting starts at $750 to $1,250 a month. Real quotes for a $1 million to $10 million company usually land above the starting price because volume and entity count drive the fee.

What are some good outsourced bookkeeping services available in the USA?

Good outsourced bookkeeping services in the USA include GATP Solutions, Pilot, Bookkeeper360, Bench and 1-800Accountant, each with a published price. Pilot starts at $99 a month for AI-led cash books. Bookkeeper360 offers weekly bookkeeping from $599 a month. Bench limits its $199 plan to revenue of $250,000 or less, so larger companies start at $399.

Should I outsource my accounting?

You should outsource your accounting when the work needs more skill than one bookkeeper has but not enough hours for a full-time accountant. At a loaded $123,900 a year for a median accountant, most companies under $10 million in revenue fall in that range. Keep one internal owner who approves payments.

Is it cheaper to outsource accounting?

Yes, outsourcing is usually cheaper for a company that needs less than one full-time accountant. A controller-led plan from $15,000 a year costs about 12 percent of a loaded median accountant. A team also covers sick days and resignations, so the close does not stop.

When should you outsource accounting?

Outsource accounting when your reports arrive later than the 10th business day that Pilot Core commits to, when a lender asks for accrual statements, or when you add a second entity. Each signal means the books need controller-level review. Starting before a busy filing season also helps, because 1099-NEC forms are due to recipients and the IRS by 31 January.

Are outsourced accounting firms CPA firms?

Some outsourced accounting firms are CPA firms and some are not. GrowthForce and Supporting Strategies both state on their sites that they are not CPA firms, while Baker Tilly is a national CPA firm. Only a CPA firm can issue audit or review reports, so check the license if you need either one.

Who owns my books if I leave an outsourced accounting firm?

You should own your books if the firm works inside your own QuickBooks Online, Xero or NetSuite file. Confirm it in the contract. The IRS expects most income tax records kept for 3 years and employment tax records for at least 4 years, so a clean export on exit protects you.

How do you measure accounting outsourcing ROI?

Accounting outsourcing ROI is the in-house cost you avoid minus the fee, divided by the fee. Replacing a $123,900 loaded accountant with a $15,000 plan saves about $108,900, about 7 times the fee. Also track days to close and the number of corrections each quarter.

Do outsourced accounting firms file Form 1099s for you?

Most outsourced accounting firms file Form 1099-NEC and 1099-MISC as part of a bookkeeping or tax plan, though some bill it separately. For payments made in 2026, the 1099-NEC threshold is $2,000 per payee. Ask the firm to confirm it uses the new threshold and collects a Form W-9 before the first payment.