8931 Accounting, auditing, and bookkeeping services

Introduction

• What it is: This MCC encompasses businesses that provide financial record keeping and auditing services.
• Risk level: Medium — Businesses may face moderate scrutiny due to potential financial fraud risks.
• Acceptance difficulty: Medium — While many PSPs accept these businesses, regulatory concerns can complicate onboarding.
• Typical business models: accounting firms; bookkeeping services; auditing agencies; tax consultants.
• For merchants: Expect competitive MDR rates; be prepared for possible reserve requirements; clear financial practices are often scrutinized.
• What PSPs expect: Business licenses; detailed descriptions of services offered; evidence of financial stability and practices.

Payment Insights & Benchmarks

Merchants in this MCC should prepare for unique payment dynamics compared to standard e-commerce. Due to the nature of services provided, acceptance rates and fraud risks can significantly vary, impacting overall transaction efficiency.

Payment methods

Cards: typically used, but may face scrutiny in high-value transactions, leading to variable approval rates.

• E-wallets: convenient for clients who prefer quick and easy payments, but adoption may be lower in some demographics.
• Bank transfers: often preferred for larger invoices, but can introduce longer settlement times.
• Digital invoicing systems: increasingly integrated, facilitating automated payments but reliant on client-side adoption.

Authentication & security

Strong customer authentication (3DS, SCA) is frequently implemented to minimize fraud risks, especially with recurring billing.

• Some transactions may still face friendly fraud, so active monitoring is essential.
• Detailed fraud analytics should cover transaction patterns and client behaviors to enhance security measures.

Benchmarks (indicative, not guaranteed)

MDR: generally higher than standard e-commerce due to the risk associated with service payments.

• Rolling reserves: may be required by some payment processors, particularly for higher-risk transactions.
• Settlement periods: typically longer than retail, often exceeding 5 business days.
• Chargeback ratios: can be elevated due to service-related disputes, often above 1%.
• Approval rates: may fluctuate based on service type and customer profile; typically lower for large transactions.

Key metrics to monitor

Authorization rates segmented by payment method and transaction size.

• Chargeback ratios, focusing on reasons tied to service delivery versus fraud.
• Average payment size relative to transaction type, aiding in forecast accuracy.
• Client payment behavior trends, like frequency and preferred methods, for better cash flow management.

Risk & Compliance

Merchants under this MCC face unique challenges related to financial integrity and data security. PSPs and acquirers are vigilant in their risk assessments, requiring thorough compliance measures to address potential fraud, chargebacks, and regulatory obligations.

Chargebacks & fraud

Friendly fraud (clients disputing valid charges) can be prevalent in service industries like accounting, leading to increased chargeback rates.

• Vulnerability to identity theft and fraud, particularly if clients provide sensitive financial information.
• Fraud mitigation tools include strict client onboarding processes, behavioral analytics for monitoring transactions, and clear engagement agreements outlining service deliverables.

AML/KYC expectations

Comprehensive customer identity verification is essential, requiring robust IDV measures and checks against sanctions lists.

• Source-of-funds verification for new clients or large transactions, especially for businesses handling significant financial documentation.
• Manual review triggers include frequent large transactions, discrepancies in provided financial data, or sudden changes in client behavior.

Operational red flags

Lack of transparency regarding ownership and service structure, especially in firms operating on a white-label basis.

• Failure to validate client identities or background checks for high-risk services can raise immediate concerns for PSPs.
• Unclear terms of service or refund policies, which can lead to disputes and chargebacks.
• High turnover rates in client personnel without proper protocol can indicate operational instability and potential fraud.

Onboarding Checklist

Merchants in the Accounting, Auditing, and Bookkeeping Services sector should assemble a thorough onboarding package prior to engaging with PSPs or acquirers. A comprehensive and organized submission enhances the likelihood of approval and expedites the review process.

Legal & corporate documents

company registration and incorporation documents

• disclosure of beneficial owners (UBO) and corporate structure
• relevant licenses or certifications for accounting services
• policies: Terms of Service, Privacy, AML/KYC, Refund Policy

Financials & risk management

recent financial statements and cashflow forecasts

• liquidity or reserve model for managing client funds
• description of antifraud measures and risk management tools

Product & marketing

demo access or screenshots of the service platform

• overview of marketing strategies and client acquisition sources
• target demographics and geographic focus
• KYC flow details, including verification processes

Technical integration & security

system architecture overview, including supported payment methods

• description of transaction security measures (encryption, tokenization)
• PCI DSS compliance status and data handling policies

Operations

customer support framework (availability, languages supported)

• SLA for service delivery and customer query resolution
• protocols for handling disputes and managing client complaints
• outline of data management practices and client confidentiality procedures

Regulation & Licensing

Licensing and certification are essential for merchants in this MCC, as they ensure compliance with local regulations and standards, which can vary significantly based on jurisdiction. Payment Service Providers (PSPs) and acquirers often require proof of such credentials before onboarding.

Operator licenses

Certified Public Accountant (CPA) license — a common requirement in the U.S. for firms offering accounting services.

• Chartered Accountant (CA) designation — recognized in many Commonwealth countries, ensuring adherence to professional standards.
• Licensing from local regulatory bodies, which may vary by state or region, is often required for firms engaging in auditing services.
• Some jurisdictions may require a specific license for tax advisory services in addition to general accounting certifications.

Geo-restrictions

Certain countries have strict financial regulations, limiting the ability of overseas accounting firms to operate without local licenses.

• In the U.S., state-specific licenses may be required, leading to restrictions on practice across state lines.
• Non-compliance with international accounting standards can hinder the ability to service clients in specific markets.

Certifications & audits

AICPA (American Institute of CPAs) membership may be necessary for firms in the U.S. to perform audits and attestation services.

• ISO 9001 certification for quality management systems may be requested by larger organizations.
• Regular compliance audits to ensure adherence to GAAP (Generally Accepted Accounting Principles) or IFRS (International Financial Reporting Standards) standards.
• AML and KYC compliance reviews could be necessary for accounting firms dealing with financial transactions or sensitive client information.

Official Definitions & Network Comparisons

This section shows how major card networks define this MCC and highlights practical differences that affect merchant onboarding.

Explanation:

Though the definitions broadly align across networks, differences in emphasis (e.g., requirements for licenses and proof of expertise) can impact merchant setup. Specific networks may require increased scrutiny based on the perceived risk associated with the services offered. Common reasons for merchant denial can include insufficient documentation of credentials and adherence to local laws.

Alternative MCC Codes

Merchants often confuse this MCC with other categories. The table below shows which codes are related, why they are confused, and what risks misclassification brings.

Rule of thumb for merchants:

If your business primarily revolves around accounting, auditing, or bookkeeping, ensure you use MCC 8931. Misclassifying your services under another code can lead to compliance issues and potential penalties. Always classify based on the primary service you provide.

Best Practices for Merchants

Merchants under the MCC 8931 must navigate a landscape of financial scrutiny, requiring diligent management of their payment operations and risk factors. Implementing the following best practices is essential to foster a sustainable business, enhance payment acceptance, and minimize disputes.

Classification & transparency

always use the correct MCC; misclassification can lead to compliance issues and account suspension

• provide clear disclosures regarding services, fees, and terms of service on your website
• ensure transparency in accounting practices and maintain consistent business descriptors

Fraud & chargeback reduction

adopt 3DS or step-up authentication for transactions that exhibit any high-risk indicators

• create clear billing descriptors and send instant confirmations (via SMS/email) to enhance customer communication
• maintain a detailed log of transactions and customer interactions to support dispute resolution

Payment acceptance optimization

facilitate multiple payment methods (credit/debit cards, e-wallets, bank transfers) to accommodate different client preferences

• optimize payment routing based on geographical data and consistently test the performance of various PSPs
• establish separate MIDs for different services or client segments to better align with merchant category requirements

Operational discipline

monitor key performance indicators (KPIs) such as transaction approval rates, chargeback ratios, and customer lifetime value

• conduct regular compliance audits, update internal processes, and perform routine test transactions to ensure efficiency
• designate a dedicated team or individual responsible for handling disputes and set service level agreements (SLAs) for resolution timelines

Payouts & liquidity

keep sufficient liquidity buffers to manage rolling reserves and address potential delays in settlements

• implement automated anti-money laundering (AML) checks for withdrawals, particularly for significant amounts
• track payout frequency and identify any unusual withdrawal patterns to mitigate potential risks

Business Scope & Examples

This MCC covers businesses that provide a range of financial services, including accounting, auditing, and bookkeeping. Merchants classified under this category typically assist individuals and other businesses with financial recordkeeping, compliance, and advisory services.

Models

accounting firms providing tax preparation and financial statements

• bookkeeping services for small businesses and freelancers
• financial audit companies focusing on internal and external auditing
• payroll processing services for companies

Borderline cases

Financial consulting services — organizations offering advice on investment strategies or financial management may not be included unless they explicitly provide accounting services.

• Tax advisory services — entities that focus solely on tax planning and consulting may fall outside this MCC if they do not engage in bookkeeping or auditing.

Signals for correct classification

primary services include preparation of financial statements and audits

• offers ongoing recordkeeping services for clients
• prepares and files tax returns on behalf of clients