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Payment processing for accounting firms: engagement billing and tax-season packages

An accounting practice earns unevenly. Monthly bookkeeping engagements bill on a schedule all year, while tax season compresses a year of returns into a few weeks of fixed-fee packages. RapidCents bills the ongoing engagements with recurring payments, invoices project milestones as they are reached, sends branded payment links so a T1 or corporate return is paid before the filing goes out, and keys phone payments on the virtual terminal. Accounting firms carry MCC 8931.

Accounting Firms team reviewing payments in the RapidCents dashboard beside a card terminal.
A Accounting Firms team manages checkout and transactions in the RapidCents dashboard.
  • PCI DSS Level 1
  • SOC 2 Type II
  • All major card brands: Visa · Mastercard · Amex · Discover · PIN debit
  • Interchange-plus available
  • Specialist onboarding support

Operational workflows

  1. Engagement scoped and priced for the year

  2. Monthly bookkeeping fee charged on a recurring schedule

  3. Return packages billed as filings are delivered

  4. Client payments reconciled against the practice ledger

Payment challenges

  • Half the year's billing in one quarter

    Tax season concentrates invoicing into a few weeks, then recurring engagements have to carry the rest of the year.

  • The filing is delivered before it is paid

    The completed return is the deliverable, and once the client has it the outstanding invoice loses its leverage.

  • One client, several entities

    The same client can be billed as an individual, a corporation and a payroll account, each needing its own invoice trail.

Choose the right payment setup for Accounting Firms

  • Choose accounting firm payment processing

    For Accounting Firms, map sign-up, scheduled billing, and renewal, online checkout and remote payment, and the invoice, retainer, and remote client payment before choosing a setup. Select channels that match those moments, then confirm that the chosen solution genuinely covers each channel.

  • Payment hardware for Accounting Firms

    For Accounting Firms, physical hardware may be secondary to the checkout flow. Prioritize gateway or payment-page requirements first, then add a terminal only when an in-person payment point is genuinely needed.

  • Compare payment processing fees

    For Accounting Firms, request a written fee breakdown covering scheduled billing, declined cards, and cancellations and online checkout and dispute handling. Compare the effective cost across the real card and channel mix; do not choose on a headline rate alone.

  • Set up or switch Accounting Firms payments

    To set up Accounting Firms payments, document the checkout, confirmation, and refund path, confirm compatibility before purchase, then test a real payment flow before going live.

How this gets set up

  • Monthly engagement onto a schedule

    A bookkeeping client's fee is loaded once onto recurring payments and charged on the same date every month.

  • Tax-season package paid before filing

    A branded payment link goes out with the return, so the fixed fee is collected before the filing is transmitted.

  • Project milestones invoiced as reached

    A year-end or a review engagement is billed at its stages rather than as one invoice after all the work is done.

  • Phone payments keyed by the office

    A client reading a card over the phone during the March crunch is keyed into the virtual terminal without a callback.

Integrations

  • QuickBooks

    QuickBooks is where most of the firm's clients keep their books, and settled fee payments post into the practice's own ledger the same way.

  • Xero

    Xero carries the client files the practice works in, and a fee payment reconciles against the invoice raised there.

  • Karbon

    Karbon runs the practice's workflow and job list, and a paid invoice tells the team that a job's billing step is closed.

Operations, security and going live

  • Recurring fees and seasonal work read apart

    Reporting separates the monthly engagement base from tax-season packages, because the first is the practice's floor and the second is its peak.

  • Client payments reconciled to the engagement

    Each payment has to name the engagement it settles, so a client with both bookkeeping and a corporate return does not carry one blended balance.

  • The card is the client's, the record is the firm's

    Card details taken for a fee stay tokenized and out of the client's working papers.

  • Live before tax season, not during it

    Recurring schedules and payment links are configured outside the filing crunch, because the weeks that need them have no room to build them.

Payment questions from Accounting Firms

What should businesses compare when choosing accounting firm payment processing for Accounting Firms?

Compare accounting firm payment processing against the real payment journey: sign-up, scheduled billing, and renewal, online checkout and remote payment, and the invoice, retainer, and remote client payment. Start with the required channels and hardware, then confirm compatibility and support before committing.

What payment hardware is practical for Accounting Firms?

If Accounting Firms sells primarily online, do not choose physical hardware before validating checkout. Add hardware only for a clearly defined in-person payment need.

Which payment channels are relevant for Accounting Firms?

For Accounting Firms, start with sign-up, scheduled billing, and renewal, online checkout and remote payment, and the invoice, retainer, and remote client payment. Keep only the channels that match those moments, then verify the complete customer flow before offering them.

How should payment processing fees be evaluated for Accounting Firms?

For Accounting Firms, compare costs related to scheduled billing, declined cards, and cancellations and online checkout and dispute handling using actual transactions. Request a written breakdown of fees and terms rather than relying on an advertised rate alone.

What should be confirmed before setting up payments for Accounting Firms?

For Accounting Firms, document the checkout, confirmation, and refund path, verify the needed compatibility, and test the flow before going live. This exposes manual steps and exceptions before customers encounter them.

What should be confirmed before using recurring payments for Accounting Firms?

Define consent, billing cadence, change and cancellation rules, and how a declined card is handled. Ask to see the complete customer journey before offering it to customers.

What MCC category applies to Accounting Firms?

MCC 8931 is commonly associated with Accounting Firms. Our onboarding team confirms the correct category for your business.

Take the next step

Talk to a RapidCents specialist

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