The 15 Best Finance & Accounting Outsourcing Firms in 2026

Authored By: Juhi
Juhi is an experienced content creator with a deep understanding of audience engagement and brand...

Fact-checked By: Pritpal Singh
UK accountant with 9+ years’ experience in taxation, audit, budgeting and management reporting.. He has...

Financing is hard. Mix that with in-house management, deadlines, and accuracy, it can get extremely difficult to ensure precise finance reporting. But maybe outsourcing finance and accounting is the way to go.

Externally getting your work done is great for companies that are struggling to keep up with the workload of their finance clients. However, finding the right F&A outsourcing firm is the other struggle that many businesses face.

This guide helps you understand finance and accounting outsourcing firms and why your business may need them. We will also recommend to you the top 15 companies to outsource finance & accounting services from.

Let’s begin!

What Does Outsourcing Finance & Accounting Mean?

Outsourcing financial and accounting often means hiring an external, specialized firm (or team) to handle some or all of a company’s financial and accounting functions. Once you start externally sourcing, you can let your in-house team handle advanced financial tasks like forecasting or strategizing, and give the repetitive tasks like monthly reconciliations to your outsourced financial team.

Some tasks are more popular to outsource than others, like:

• Bookkeeping and general ledger
• Accounts payable and receivable
• Payroll and tax handling
• Monthly financial reporting and statements
• Budgeting and reconciliations
• Financial expert consulting (CFO and above)
• Compliance and audit support

You can start outsourcing fully, modularly (selecting the services you want), hybrid setting (the outsourced team supports your internal one), or collaborate remotely. This gives you autonomy to choose how you eventually grow your business in a budgeted manner.

The Difference Between In-House Vs. Outsourcing Financial & Accounting

Choosing between an in-house financial team or an outsourced financial and accounting team is tough. However, the differences between the models can be helpful in choosing one option over the other. One thing is for sure: this financial expert team aims to keep your books accurate and your business compliant.

Expertise & Skill Level

When it comes to an in-house team, you always hire financial experts who fit your budget and requirements closely. They may come at a higher cost, and sometimes these experts can be inexperienced in complex accounting tasks and issues. Hence, outsourcing can be a better option as you can choose an experienced individual and hand them the necessary responsibilities.

Scalability

Both models are somewhat flexible and scalable in this regard. Your in-house financial team can be summoned at any time by you for urgent matters, while this is tough with an outsourced team. Also, scaling your internal team might be hard, but worthwhile in the long term. Outsourcing can be highly scalable as it involves no overheads; however, the benefits are short-lived.

Updated Technology

The misconception many businesses have is that technology support is provided by outsourcing accountants. That is not the case until and unless you partner with the best outsourcing financial and accounting companies. So, mostly you may have to contribute additional expenses towards finance and accounting tools.

Management Styles

Managing in-house accountants can be way easier than handling outsourced accounting teams. Your time zones may not match, and the problem increases when the team scales way up after a while. Hence, for managing external teams, most businesses opt for building custom financing and accounting outsourced teams that also contain a manager.

Risks & Compliance

Outsourcing accounting ensures good compliance and risk management. It may not seem like that at first, but outsourcing agencies take full responsibility for your data and ensure that every person involved is signed under NDAs and other legal barriers to protect you from data leaks. Internally, you may set up strict rules, but the risks are very high.

Cost Comparison Between In-House Vs. Finance & Accounting Outsourcing Firms

Please look at the following table to understand the cost comparison between your internal finance team and finance and accounting outsourcing companies or firms:

According to the table, it might be evident to you why businesses like yours (that are growing at the rate of 20 to 30% on a yearly basis) may prefer outsourcing more. It is less responsibility with higher quality of work and better output.

List of The 15 Best Finance & Accounting Outsourcing Companies

Here is our list of the top 15 reliable finance and accounting outsourcing firms and companies you can choose from. These are vetted suggestions according to their experience, industry relevance, and service quality.

1. Invedus

Invedus is an outsourcing firm based in the UK that specializes in providing accounting and finance-based services to businesses of any size. As it is an outsourcing firm, you can choose to build a team or hire specialized finance and accounting professionals who help with your internal workload. They have worked with clients from 30+ countries.

The best part about Invedus is their affordability and experience. They have provided CFO-level accountants to 90+ businesses that have helped with tax filings, month-end closing, AP/AR, accurate books, and compliance.

Their 10+ years of experience have helped them repeatedly support SMBs, bigger companies, and entrepreneurs find the right financial expert to make their accounting workflows simple. Businesses have claimed to have saved up to $40,000 a year by partnering with them.

Benefits of Choosing Invedus:

As a business, you can get many advantages by collaborating with Invedus for your financial savings.

• Custom hiring according to your needs and specifications. We make sure we shortlist a list of candidates that match your communication style, experience requirements, and deliverables quality to a tee.
• No obligation screening helps you to choose a candidate who actually fits you and your business. There is no rush or catch involved; it is completely up to you on how fast you want to onboard someone.
• Control over decisions is a must for us. We give you the autonomy to set the pace and the scale at which you want to hire experienced accountants. You can choose to hire an individual or a team.
• Switch made easy for businesses who may be looking for more. We don’t charge you extra, though, we make sure you find the next best fit for your accounting needs. New candidature can begin almost immediately.
• Access to the top talent of any industry. We handpick and select experienced individuals who have experience with businesses and problems like yours. They understand, act, and provide tangible results.
• Extended office management with 0 setup. Consider us your partner and an extension of your internal processes. We try to recreate your work culture, values, and vision to help the candidate match your overall work demands.

Key Services:

• Bookkeeping & accounting
• Payroll management & compliance
• Accounts payable & accounts receivable (AP/AR)
• Financial reporting & month-end closing
• Tax preparation & compliance
• Treasury & cash flow management
• Scalable fao solutions
• Compliance & data security

2. EY (Ernst & Young)

Considered one of the “Big Four”, EY is an accounting and consulting firm based in London. It is a huge service provider for all things finance and technology with a presence in 150+ countries. As it is a bigger firm, they often work on bigger projects, which may require hundreds of professional accountants’ expertise for execution.

EY is a brand name for the finance industry, and businesses that can afford their services choose to work with them for their years of expertise.

Key Services:

• Assurance and audit services
• Tax services
• Consulting and advisory
• Transactions and strategic consulting

3. Grant Thornton International

Known for its global collaboration, Grand Thornton International is a network of independent accounting, audit, tax, and advisory firms. They all fall under the GTIL parent company and operate in 156 markets and have established 750+ offices.

They are synonymous with accounting and financial services, often delivering results with a fast turnaround time. You can work with a team of professionals with their strength of about 76,000 accountants and financial advisors.

Key Services:

• Assurance and audit services
• Tax services and advisory
• Business and management advisory / consulting
• International business support / cross-border services

4. Crowe Global

Crowe Global is similar to GTIL as it is also a multinational network of independent accounting, audit, tax, advisory, and consulting firms. They share a global presence across 150 countries, with 750+ offices globally. This has been made possible thanks to the number of firms that are in the network with them.

As of 2026, they have a group of 200 independent member firms operating. Their service quality is high, and the reputation they uphold in the market has granted them the top 10 recognition in the accounting and finance industry.

Key Services:

• Audit and assurance services
• Tax services and advisory
• Consulting and business advisory
• Financial advisory and transaction services
• Risk and compliance services

5. Baker Tilly International

Formed in 1987 under a different name, Baker Tilly International is now a global name in the world of outsourced accounting. They have created a solid network of accounting, audit, tax, legal, and advisory firms, which have helped their clients get end-to-end accounting and legal compliance in finance. 

Also, for the year 2023, they received the title of “Network of the Year” at the International Accounting Forum & Awards for delivering the best global performance in finance.

Key Services:

• Assurance and audit services
• Tax services and advisory
• Business consulting and advisory
• Transactions, M&A, and corporate finance advisory
• Outsourcing services in some markets
• Cross-border and multinational business support

6. Forvis Mazars (formerly Mazars / Forvis)

Forvis Mazars is a recently partnered international accounting and finance service provider operating in all 50 U.S. states and over 100+ markets. Their U.S. office alone has 7,000+ skilled accounting professionals who help growing mid to enterprise-size businesses.

As the company is a combination of a U.S. firm (FORVIS) and an international firm (Mazars), it has about 1,800 global partners scattered across multiple countries. Their services are priced moderately and can also go up to niche ones like global compliance and reporting.

Key Services:

• Audit and assurance
• Tax Services and advisory
• Consulting and advisory
• Accounting and accountancy services
• Sector-focused services

7. TMF Group

The TMF group isn’t a company limited to accounting. They offer administrative, compliance, accounting, payroll/HR, and global entity management services to multinational clients. The firm is headquartered in the Netherlands and has 125+ offices across 87 jurisdictions.

They mostly serve clients who feature in the Fortune Global 500 and the FTSE 100. However, they also partner with private equity firms. TMF Group has also invested in custom software, like a global entity management digital platform (TMF KRAIOS) for accounting, tax, and compliance workflows, and a global payroll system (TMF Optix).

Key Services

• Accounting and tax compliance
• Payroll and HR administration
• Global entity management and corporate administration
• Fund and capital markets services / fund administration
• M&A / Cross-border structuring and compliance
• Private wealth and family office services

8. inDinero

Founded in the U.S., inDinero is a well-known name among the finance and accounting outsourcing firms. The company has over 16 years of experience in providing support for U.S. tax, payroll, daily accounting, and other compliance support. However, the firm mostly prefers to offer its services to U.S.-located businesses.

They aim to help businesses set up a small to substantial financial department with a moderate investment. Also, as they offer comprehensive accounting support, you can expect to receive a modern accounting software + human expertise approach to help your business stay financially sound.

Key Services:

• Accounting and bookkeeping services
• Outsourced CFO / controller services
• Tax Services and compliance
• Payroll and compliance support
• Accounts payable / accounts receivable and cash-flow management
• Startup-focused services
• Technology-driven integrated accounting solutions

9. Insignia Resources

This accounting and financial outsourcing provider located in Panama is considered a resource for many U.S. clients. They support small and start-ups to create what’s called “satellite teams”. These operate in a headquartered location; however, they support international markets.

You can start by hiring experienced accountants quickly, as they offer faster onboarding compared to on-site hiring. But the firm believes that for optimal cost savings, you can start by establishing a small financial team with them from the get-go.

Key Services:

• Bookkeeping and general ledger / financial reporting
• Accounts payable (AP) / accounts receivable (AR)
• Payroll administration and payroll-related compliance/benefits tracking
• Tax preparation assistance and compliance support
• Budgeting, forecasting, financial modeling, and cash flow management
• Audit preparation and reconciliations

10. Capgemini

Capgemini is one of the largest consulting firms in the world. They are primarily known for their IT services and outsourcing. Though they have branched into finance and accounting outsourcing, and offer a few services. Their presence is huge, harboring 341,000+ employees across more than 50 countries.

The unique offering they have is their Rightshore® Model. This makes sure that they optimally use their nearshore, offshore, and onshore resources to maintain a fast turnaround time for their projects. You may know, the only downside is their minimum project size preference.

Key Services:

• Business process outsourcing (BPO), including finance and accounting outsourcing (FAO)
• Digital and technology services
• Consulting and transformation services
• Global delivery and offshore/nearshore delivery model

11. RSM International

We know that you are tired of hearing it, but RSM International is also a global network of independent accounting, audit, tax, and consulting firms. You can expect a large capacity for work as they have 65,000 professionals excelling at F&A outsourcing services.

They capture clients from the “middle market” and prefer to work on decently sized projects. But due to them having to partner with multiple firms and exploring expansion indirectly, the quality of their services cannot be pinpointed and may vary based on the firm you choose to work with in their network. 

Key Services:

• Audit and assurance services
• Tax services and advisory
• Consulting and business advisory
• Transaction services / M&A advisory / financial advisory
• Global and cross‑border services

12. Connext Global

If you are looking for a firm that can help you a global office, Connext Global should be your first choice. They offer global entity setup using EOR services to simplify payroll, compliance, tax, and employment administration. This comes at a small cost, but can help you gather skillful remote talent.

They truly are an outsourced finance and accounting firm whose expansion is present in countries like India and existing hubs in the Philippines, LATAM, and more. But if your business model is a very niche, tax, audit‑heavy, complex industry‑specific accounting, they might not be the best fit.

Key Services:

• Accounting & bookkeeping
• Payroll management and compliance support
• Accounts payable (AP) / Accounts receivable (AR) and cash‑flow management
• Financial reporting and statements, monthly/quarterly closing
• Flexible staffing and outsourced back‑office teams
• Industry-agnostic back‑office support

13. Pilot

Pilot is considered the largest startup‑focused accounting firm in the U.S. Established in 2017, the company’s focus is on supporting growing businesses with flexible finance and accounting services. As a business, you can expect to get CFO‑level financial services from them.

They believe in three core values: simplicity, automation, and expertise. Combined with their affordability can help you get comprehensive F&A services anytime. Though, as we researched, we found that some clients faced delays in month‑end closing and a lag in financial data availability. Hence, vet them before you settle for them.

Key Services:

• Bookkeeping and accounting
• Tax services and compliance
• CFO and advisory services
• R&D tax credit support
• Integrated software + human expertise model

14. kept.pro

Clients who may need more than simple bookkeeping but less than specialized finance services partner with kept.pro. They offer “fractional accounting team” as a service and help businesses attain the full scope of outsourced accounting, bookkeeping → controller → fractional CFO all in one.

As they target small to startup-sized businesses, they also help them correct inconsistent records and help them prepare their financial records for funding, audits, or reviews. The typical client of kept.pro might have an annual revenue of $2 M to $30 M or more.

Key Services:

• Bookkeeping and accounting / month‑end close and reporting
• Accounts payable / receivable (AP/AR), cash flow, and collections management
• Payroll and payroll‑related services
• Fractional controller / CFO‑level support and advisory
• Specialized services for startups and tech/SaaS companies
• Book cleanup and onboarding / historical records correction
• Flexible engagement models

15. CFOshare

Even though their scope of services might be low, CFOshare is an affordable, high-level accounting service provider. They are ideal for businesses that want to employ advanced financial requirements without spending a fortune.

They are a U.S.-based firm serving U.S. businesses under U.S. accounting standards. Hence, if you fall outside of this geographical area, there may not be an option for you. Their full financial stack is quite cost-efficient when compared to other financial service outsourcing firms.

Key Services:

• Bookkeeping and financial reporting
• Fractional CFO / CFO support services
• Capital strategy and transaction support
• Flexible / on-demand model

Also Read: 18 CFO Services Providers to Watch in 2026 and Beyond and Outsourced Accounting: What to Expect, Where to Start, and More

Outsource to Save Time, Investments, Cost, & Peace of Mind

When it comes to outsourcing, many businesses have their doubts. It stems from control and having to coordinate with an external team with unknown dependencies. Yes, it is scary at first, but outsourcing is that one secret that even industry giants use to improve their efficiency.

Apart from saving you time, cost, and investments, you save peace of mind. For every business founder, their gripe becomes saving themselves some time for research, growth, and expansion. This is possible with outsourcing financial and accounting through firms like Invedus.

By partnering with a reliable provider like Invedus, you can save valuable time, reduce investments in infrastructure, and lower staffing overheads, all while maintaining compliance and financial accuracy.

The bottom line is simple: outsourcing makes you work smarter, not harder.

What Are Your Thoughts?

Outsourcing anything is great, but finding the right partner for it is the tedious part. When it comes to finances, you can never rely on a provider that doesn’t follow data security, expertise, industry relevance, and other common factors.

This is why we have listed the 15 best finance and accounting service outsourcing firms. These top choices can help you quickly jump into outsourcing at reasonable rates without the need for vetting them on every step and specialty.

However, an important note you should follow is that outsourcing requires trust. Any financial workflow you start outsourcing will need a lot of communication and follow-up. As a business owner, treat this process as asking for reports from your own internal team and keep partnering on outsourcing to bring order to your traditional workflows.