UK B2B Purchase Ledger Specialists

Structured Accounts Payable Control Without Full-Time Overhead.

Harrowby Ledger executes high-accuracy purchase invoice processing, three-way PO matching, and supplier statement reconciliations directly inside your existing accounting or ERP platform—protected by Mutual NDA.

View Retainer Tiers

Turnaround & SLA Standards

Diagnostic Audit DeliveryWithin 48 Hours of Payment
Monthly Retainer Turnaround48–72h (2–3 Business Days)
Weekly Run Turnaround24–48 Business Hours
Supplier Reconciliations100% Top-Vendor Monthly
Payment Release Authority100% Client-Retained
Confidentiality & GovernanceMutual NDA + UK Contract
Core Ledger Scope

Built for Clean Month-End Closes

We eliminate uncoded invoice backlogs, duplicate postings, and month-end supplier disputes so your Finance Director focuses on cash flow rather than data entry.

Purchase Invoice & PO Matching

Accurate nominal coding, UK VAT verification, and three-way matching against purchase orders and goods-received notes inside your existing accounting software.

Supplier Statement Reconciliations

Systematic line-by-line reconciliation of key supplier statements prior to every payment run to surface missing credit notes and prevent overpayment.

Payment Run Preparation

Structured BACS payment schedules prepared on your weekly or monthly cadence, paired with strict out-of-band bank detail change flags before you release funds.

Universal Software Compatibility

Supported Finance & ERP Systems

We work natively inside the accounting software or ERP your business already runs—zero migration or software change required.

UK & Cloud Accounting Ledgers

Xero Sage 50cloud Sage Intacct Sage 200 QuickBooks Online FreeAgent Zoho Books KashFlow Clear Books FreshBooks Wave

Mid-Market & Enterprise ERPs

Microsoft Dynamics 365 Oracle NetSuite SAP Business One SAP S/4HANA Oracle Financials Cloud Access Financials Access Dimensions Pegasus Opera 3 Infor SunSystems Epicor ERP Workday Financial Odoo Accounting Unit4 Syspro

AP Capture, OCR & Spend Tools

Dext Prepare ApprovalMax AutoEntry Zahara Lightyear Pleo Spendesk SAP Concur Tipalti Coupa Expensify
Any Custom, Citrix/RDP, or Legacy On-Premise ERP — If your team can access it via browser, desktop app, or secure remote login, Harrowby Ledger can operate inside it seamlessly.
Transparent Commercial Tiers

Predictable Fixed-Fee AP Capacity

Start with a risk-free 48-hour £350 ledger diagnostic or transition directly into a capped weekly or monthly processing cadence.

Diagnostic Audit
£350
Delivered within 48h of payment
  • Aged creditors, duplicate & VAT risk audit
  • £350 Find-It Guarantee: 100% refunded if under £350 in credits/discrepancies found
  • Standalone 48-hour ledger health check (no Month 2 credit; 50% / £175 Month 2 credit is exclusive to Option C)
  • Strictly one audit per Companies House number
Option A · Weekly Run
£300
Per week (up to 50 invoices)
  • Up to 50 purchase invoices/week
  • 24–48 business hours processing SLA
  • Weekly BACS payment run prep
  • Exception & query log
  • Paid via BACS / bank transfer only (no Direct Debit) · Zero lock-in: Cancel anytime before next weekly billing cycle
Option C · Hybrid Start
£350 + £1k
48h Audit + Monthly Retainer
  • Full £350 Diagnostic Audit within 48h
  • Transitions directly into 200 inv/mo
  • Mandatory Month 1 (£1,000) via BACS (£500 non-refundable onboarding retainer upfront + £500 due on 1st); Direct Debit or BACS available from the 2nd month onward with exclusive 50% (£175) audit credit in Month 2 (£825)
  • Month 1 committed in full; 14-day cancellation notice from Month 2

* Diagnostic Audit £350 Find-It Guarantee refund applies once per registered UK Companies House number. The 50% (£175) Month 2 audit credit is exclusive to Option C (Hybrid Start) and is a promotional fee deduction applicable solely against an active Month 2 retainer invoice; it holds no cash value and is forfeited if the Client terminates prior to Month 2. Upon signing Option B or Option C, the Client commits to Month 1 in full (£1,000) and the £500 upfront onboarding retainer is non-refundable under all circumstances (credited toward Month 1, leaving £500 due on the 1st).

Full Legal & Financial Safeguards

Protected by Mutual NDA & Commercial Contract

Before we ever view a single invoice or log into your accounting software, your business is legally protected under binding England & Wales agreements.

Mutual Non-Disclosure Agreement

Every engagement starts with an executed Mutual NDA covering your supplier pricing, banking details, payroll/overhead ledgers, and customer records in perpetuity.

Formal Master Service Agreement

Clear England & Wales commercial contract defining exact turnaround SLAs, fee caps, notice terms, and UK GDPR / Data Protection Act 2018 compliance.

Zero Payment-Release Access

We operate strictly on role-based AP clerk permissions. Harrowby Ledger never holds client funds, bank tokens, or outbound BACS release authority.

Want to review our Mutual NDA & Master Service Agreement first?
Request a pre-execution copy straight from our onboarding desk.
Frequently Asked Questions

Questions & Answers

Everything Finance Directors and business owners ask before onboarding with Harrowby Ledger.

Yes. Before you grant read-only or clerk-level software access, we execute a binding Mutual Non-Disclosure Agreement (NDA) and Master Service Agreement governed by the laws of England & Wales, incorporating UK GDPR data protection clauses.
No. We work directly inside whatever system you already use—Xero, Sage 50/200/Intacct, QuickBooks, Microsoft Dynamics 365, NetSuite, SAP, Access, Pegasus Opera, or custom Citrix/RDP systems—using a dedicated user login you control.
Never. We code invoices, match purchase orders, reconcile supplier statements, and prepare your BACS payment run file. Final approval and outbound bank release remain 100% under your company signatories.
Within 48 hours of cleared payment, we audit your aged creditors, duplicate postings, unapplied credit notes, and VAT coding. If we do not find at least £350 worth of recoverable credits or discrepancies, we refund your £350 in full. If you enrol via Option C (Hybrid Start), 50% of the audit fee (£175) is credited exclusively toward your Month 2 invoice (reducing Month 2 to £825). Standalone Diagnostic Audits do not carry a Month 2 credit. Limited to once per UK Companies House number.
For Monthly Retainers (Option B or Option C), supplier invoices are coded, matched, and posted within 48–72 business hours (2–3 working days), giving full time for thorough three-way PO matching and VAT checks. For Weekly Runs (Option A), invoices are processed within 24–48 business hours ahead of your weekly payment schedule.
Option A (Weekly): Paid strictly via BACS / bank transfer only (Direct Debit is not available for weekly runs). Zero lock-in—cancel anytime in writing before your next weekly billing cycle.
Option B (Monthly): Month 1 is mandatory and paid in full (£1,000 via BACS: £500 non-refundable onboarding retainer upfront + £500 balance due on the 1st). Direct Debit or electronic bank transfer can be used from the 2nd month onward (£1,000/mo), with 14 calendar days' written notice taking effect no earlier than the end of Month 1.
Option C (Hybrid Start): £350 audit + £500 non-refundable onboarding retainer upfront + £500 mandatory Month 1 balance due on the 1st via BACS. Direct Debit or electronic bank transfer can be used from the 2nd month onward, and 50% of the audit fee (£175) is credited on Month 2 (reducing Month 2 to £825). The £175 Month 2 audit credit is a promotional fee deduction applicable solely against an active Month 2 retainer invoice; it holds no cash value and is forfeited if the Client terminates at the end of Month 1. From Month 2 onward, 14 calendar days' written notice applies. For ongoing monthly payments (from the 2nd month onward via Direct Debit or bank transfer), you must notify us immediately in writing if payment arrangements are cancelled—cancelling with fewer than 14 calendar days' written notice before the billing due date does not waive payment of the upcoming invoice.
We flag volume spikes before month-end. Additional purchase invoices above your package allowance are billed transparently at £5.50 per invoice, or we can step your retainer up cleanly to match sustained growth.