Payment Solutions for Accountancy Firms | Xero & QuickBooks | SOTpay
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Payment Solutions for Accountancy Firms


Automate billing, reduce compliance risk and integrate payments with your accounting systems.


Accountancy firms face two parallel challenges: managing their own billing efficiently, and helping clients adopt systems that reduce costs, improve compliance, and simplify financial management. Traditional invoicing and manual reconciliation waste time, while handling sensitive payment data creates compliance risk.


SOTpay and SOTpay Connect provide accountants with a PCI DSS compliant, multichannel platform that integrates directly with Xero, QuickBooks, Sage and CRM systems. Automate your own billing, and recommend a solution to clients that consolidates payments, accounting and compliance in one place.

Accountant working at a laptop using a calculator
SOTpay open API integration infographic showing CRM, PMS and accounting system connectivity with automated payment workflows, reconciliation and omnichannel payment requests.

Integrated With the Systems Your Practice Already Uses


A payment raised through SOTpay is tied to the invoice that created it, so when the client pays, the invoice is matched and reconciled without anyone keying it in. That applies to your own billing and to the clients you roll it out to.


  • Xero, with a secure payment link on the invoices you already raise
  • QuickBooks, with invoice status updating once payment completes
  • iplicit, for practices and clients running a larger finance platform
  • Sage, through SOTsync Pro


The full set, including the CRM and booking systems SOTpay connects to through APIs and middleware, is on the integrations page.

Why Accountancy Firms Choose SOTpay



Automated Retainer & Service Fees


Collect client retainers or monthly service charges using recurring payments. Reduce arrears, eliminate manual chasing, and improve cash flow.


Deep Accounting Integrations


Invoices, payments and reconciliation flow directly into Xero, QuickBooks or Sage. This removes manual data entry and reduces errors.


Client Value-Add


Recommend SOTpay to clients as a way to cut card fees, reduce fraud risk and integrate payments into their finance systems. This strengthens your advisory role. SOTpay offers a valuable affiliate scheme, where accountancy firms can earn rewards by referring clients to use the platform. Learn more about our different partnership options


Multichannel Payment Options


Allow clients to pay via SMS, email, WhatsApp or secure web links. Ideal for remote and hybrid working relationships.


Fraud & Chargeback Protection


Transactions authenticated with 3-D Secure shift liability to the bank, protecting your practice and your clients.


Multi-Client Payment Management


Practices billing across a large client base can keep each relationship separate while still seeing the whole position, with reporting that covers every client rather than one at a time.

Real-World Applications


  • Billing Retainers - Automate monthly or quarterly service fees for ongoing clients.
  • One-Off Services - Send secure payment links for project-based work such as audits or tax filings.
  • Client Adoption - Roll out SOTpay Connect across your SME client base, helping them reconcile payments automatically into Xero or QuickBooks.
  • Practice Efficiency - Eliminate manual reconciliation and reduce PCI scope by keeping card data out of your systems.

The Added Value of SOTpay Connect


  • Direct Debit & Recurring Payments - Perfect for predictable monthly retainers.
  • Open Banking Support - Clients pay securely from their bank with lower fees than cards.
  • Marketplace Plugins - Integration with popular accountancy tools, CRMs and finance software.
  • Scalable Client Management - Manage your own billing and support client adoption under one ecosystem.
Get a demonstration of SOTpay

How It Works


  • Accountant generates a branded payment request via SOTpay
  • Client receives the link via SMS, email or WhatsApp
  • Payment is completed securely
  • Card data never enters your systems
  • Payment reconciles automatically into Xero, QuickBooks or Sage



Perfect Payment Solutions for Accountancy Firms


PayPrompt – email invoice payments
Text PayLink – SMS invoice collection
AutoRenew – recurring retainers
SOTsync Pro – accounting integration
AutoTender Sync – quote-to-payment workflows
Link Pay Bank – bank payments for large invoices



Smarter Payments for Accountancy Firms


From monthly retainers to one-off services, SOTpay and SOTpay Connect help accountants simplify billing, cut costs and add value for clients. 


Secure, compliant, and fully integrated with Xero and QuickBooks, it is a smarter way to handle payments for your practice, and for theirs.

Xero, QuickBooks and Sage logos, the accounting platforms SOTpay integrates with

Frequently Asked Questions

Can I automate monthly client billing?
Yes. SOTpay supports recurring card payments and Direct Debit schedules, allowing accountancy firms to automate monthly retainers, service fees and subscription billing.
Does SOTpay integrate with Xero and QuickBooks?
Yes. SOTpay integrates directly with Xero, QuickBooks and Sage. Payments automatically reconcile against invoices, removing manual matching and reducing errors.
Can I recommend SOTpay to my clients?
Yes. Many accountancy firms use SOTpay internally and recommend it to clients. This helps clients reduce fees, improve reconciliation and simplify compliance. Get in touch to discuss our referral bonuses.
Is SOTpay PCI DSS compliant?
Yes. SOTpay removes sensitive card data from your systems, helping accountancy firms reduce PCI DSS scope and improve compliance.
How do clients pay invoices?
Clients receive secure payment links via SMS, email, WhatsApp or web. They can pay using card, Open Banking or digital wallets.
Does SOTpay support recurring retainers?
Yes. SOTpay supports recurring payments for retainers, service agreements and subscription-style billing.
Does SOTpay help with reconciliation?
Yes. Payments automatically match to invoices within your accounting software, reducing manual reconciliation.
Can I use SOTpay for one-off project billing?
Yes. Accountancy firms can send secure payment links for audits, tax filings, advisory services and project-based work.