MCC 8931: Accounting, bookkeeping or auditing services

MCC 8931: what it is, its impact & how to verify. Get JIM for iOS/Android; accept phone payments in seconds for a single, low 1.99% fee.

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Mar 25, 2026

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2 min read time

MCC 8931 is a merchant category code for accounting, bookkeeping, or auditing services, as categorized by the International Organization for Standardization (ISO). This classification applies to businesses that provide services like tax preparation, payroll processing, and financial consulting. Transactions with certified public accountants (CPAs), auditors, and other financial professionals typically use this code. It identifies payments for professional financial management and advisory services.

Which businesses fall under MCC 8931?

MCC 8931 applies to a broad range of professional financial services establishments:

Accounting firms: These businesses manage financial records and prepare financial statements for other companies. Well-known examples include large multinational firms like Deloitte or Ernst & Young (EY).
Tax preparation services: These specialists prepare and file tax returns for individuals and businesses. Companies like H&R Block and Jackson Hewitt are common examples of this service type.
Payroll processing companies: These firms handle employee compensation, tax withholding, and benefits administration for other businesses. Major providers in this space include ADP and Paychex.
Bookkeeping services: These establishments record daily financial transactions and maintain the general ledger for clients. Services like Bench provide bookkeeping for small businesses.
Auditing services: Independent auditors examine a company's financial records to confirm accuracy and compliance with regulations. The "Big Four" accounting firms are major providers of these services.
Financial planners: These professionals help individuals and organizations manage their finances to meet long-term goals. They offer investment advice, retirement planning, and estate planning.
Business financial consultants: These advisors offer strategic financial guidance to corporations on topics like mergers, acquisitions, and capital management. Firms like Boston Consulting Group (BCG) operate in this area.

Business implications of MCC 8931

Payment networks including Visa, Mastercard, American Express, and Discover use MCC 8931 to categorize transactions, which affects several aspects of business operations.

These networks assess a business's risk level based on its MCC. For MCC 8931, the professional service nature generally corresponds to lower interchange rates, as these transactions are considered low-risk. Beyond risk assessment and fees, this code influences other operational functions that help streamline financial management.

Expense tracking

Companies use MCCs to automatically sort purchases on credit card statements. For MCC 8931, this simplifies the identification of expenses for accounting, bookkeeping, and auditing services. This clear categorization also helps businesses accurately document costs for potential tax deductions.

Financial analysis

Businesses analyze spending patterns through MCC data to better manage their finances. By isolating transactions under MCC 8931, a company can track its expenditure on professional financial services, forecast future costs, and maintain its budget with greater precision.

Compliance and auditing

The consistent application of MCC 8931 creates a clear audit trail. This record allows for straightforward verification of expenses during internal or external audits, which supports financial transparency and regulatory compliance.

Rewards and customer behavior

Credit card issuers often tie rewards programs to specific MCCs. Some cards offer bonus points or cash back for business services, which can influence a customer's choice of accounting or consulting firm to maximize their benefits.

How to verify your business's MCC

Accounting and financial service owners should confirm their MCC classification to support proper transaction processing and avoid customer confusion regarding rewards eligibility.

If you find out that your business is incorrectly classified (for example, an accounting firm coded as a general professional service), contact your payment processor immediately to request reclassification.

Here's how to verify if your MCC classification is set up correctly:

Contact Your Payment Processor: Your merchant services provider assigned the MCC during account setup. To verify your classification, contact their customer service department or review your merchant agreement documents for the assigned four-digit code.
Review Processing Statements: Your monthly merchant statements typically display the assigned MCC. Look for a four-digit number in the account information or business profile details section of your statement to confirm how your business is categorized.
Check with Your Acquirer: The acquiring bank or financial institution that processes your payments maintains the MCC code in their system. You can reach out to their merchant support team, who can look up and confirm your current business classification.
Test Transaction Method: Some merchants run a small test transaction with a personal credit card and then check how the purchase appears on the card statement. This method is less reliable than direct confirmation from your payment processor or acquirer.

How to choose a reliable payment service provider

Your MCC 8931 classification influences interchange rates, so your choice of payment processor directly affects profitability. Providers handle these transactions differently, with variations in pricing, settlement speed, and support that accumulate over time. Consider these factors when you evaluate a provider.

Transparent pricing: Flat-rate pricing offers predictability over complex models that can hide costs. The JIM tap-to-pay app for iPhone and Android charges 1.99% per transaction with no setup costs, monthly fees, or premium card surcharges.
Payment method support: Your provider should accept all major credit cards and digital wallets. Support for Visa, Mastercard, Discover, Apple Pay, and Google Pay meets modern customer preferences and prevents lost sales.
Fast fund access: Quick access to funds helps manage cash flow. Instant or next-day deposits allow you to cover operational expenses like payroll and supplier payments on time, which supports the financial health of your firm.
Security: Your processor must protect customer data with strong security. Features like end-to-end encryption and tokenization replace sensitive card numbers with a unique code for each transaction, which reduces your liability.
Reporting and insights: Look for a provider that offers clear analytics. The JIM AI assistant, for example, provides sales reports and transaction history through a simple chat interface to simplify business analysis.

Streamline payments with JIM

JIM offers accounting and financial service owners a straightforward payment process solution. The JIM tap-to-pay app converts your iPhone or Android into a payment terminal with NFC technology, so you need no extra hardware. You pay a flat 1.99% per transaction with no setup costs, monthly fees, or variable rates for premium cards. For remote work, use link payments (to invoice for tax preparation) for 4.99% + $0.30 per sale.

After a client pays, the funds are available instantly on your JIM Visa Prepaid Card. You can add this card to Apple Pay or Google Pay for immediate use. This direct access to revenue helps you manage your firm’s cash flow with more control and cover expenses without the wait times of traditional bank transfers.

Frequently Asked Questions

Question

What is Merchant Category Code 8931?

Merchant Category Code 8931 is a four-digit classification number assigned to accounting, auditing, and bookkeeping services by payment networks and the ISO. This code identifies transactions for services like tax preparation, payroll, and financial consulting. Payment processors use this code to categorize purchases for interchange fees, reporting, and rewards programs.

Is Merchant Category Code 8931 high-risk?

Payment processors classify MCC 8931 as low-risk. This classification stems from the professional nature of the services, which have low chargeback rates and minimal fraud. As a result, businesses with this code benefit from more favorable interchange rates, which reduces their overall transaction processing costs.

Can a business have multiple MCC codes?

A business typically receives a single MCC that reflects its primary source of revenue. However, if a company operates distinct business lines, it can establish separate merchant accounts, each with its own appropriate MCC. For instance, a law firm (MCC 8111) that also offers in-house tax preparation services could open a second merchant account under MCC 8931 for that specific part of its business. This practice separates legal service payments from financial service payments for accurate tracking and fee assessment.

What happens if my MCC code is wrong?

An incorrect MCC classification has direct consequences for your business. Clients may not get the credit card rewards they anticipate for professional services, which can affect their satisfaction and future business with your firm. Moreover, your company might be subject to improper interchange rates, either costing you more in fees or placing you in violation of network rules for receiving unearned discounts.

Can merchants choose their MCC code?

Merchants cannot select their own MCC code. Payment processors assign the code based on a business's primary revenue source, following standards set by the ISO and card networks. This process aligns the business with a specific industry category for transaction processing. If a business owner believes their assigned code is inaccurate, they can contact their payment processor to request a reclassification that better reflects their operations.

How does MCC 8931 affect my payment processing costs?

MCC 8931 directly influences the interchange rates you pay on each transaction. As a low-risk category, businesses with this code generally receive more favorable rates than high-risk industries. This classification helps reduce the base cost of payment acceptance. However, the final amount you pay depends heavily on your payment processor's pricing structure, which determines how these base rates translate into your final cost.

Some providers use an interchange-plus model, which passes the direct interchange cost to you, so your fees fluctuate with each card type. In contrast, flat-rate processors like JIM absorb the variability and charge you a consistent fee regardless of card type. This approach offers predictable costs for every transaction your firm processes.