Case Study
6 min readPublished April 28, 2026

Case Study: How an MSP Found Nearly $4,000/month in Billing Discrepancies

An anonymized look at how one MSP used BillingReconcile to identify recurring billing discrepancies across hundreds of clients and dozens of services.

1

Overview

One MSP used BillingReconcile to review recurring billing across hundreds of client records and dozens of services.

During the review, BillingReconcile identified nearly $4,000/month in recurring billing discrepancies for the team to investigate, representing over $45,000 in annualized billing impact.

2

The challenge

The MSP had billing data spread across PSA-side services and integration-side usage records. Like many managed service providers, the team needed a clearer way to compare what clients were being billed against what connected systems showed they were using.

Before reconciliation, discrepancies could be difficult to spot because usage, service quantities, pricing, and client records were not all reviewed in one consistent workflow.

3

What BillingReconcile reviewed

BillingReconcile compared PSA-side billing records against integration-side usage across a large client base.

The review surfaced discrepancies across more than 200 client billing records, with differences ranging from small monthly mismatches to client-level issues worth several hundred dollars per month.

The discrepancies spanned dozens of services, showing that billing drift was not limited to one product, client, or service category.

4

What the MSP found

The review identified nearly $4,000/month in recurring billing discrepancies. Some discrepancies were small enough to be simple cleanup items, while others had a larger monthly impact and deserved immediate review.

Because the discrepancies were grouped by client, service, and billing impact, the team could prioritize the highest-value issues first instead of manually searching through spreadsheets.

5

Why the results mattered

Even small monthly discrepancies can become meaningful when they repeat across many clients and billing cycles.

In this case, the identified impact represented over $45,000/year in annualized billing discrepancy value. That gave the MSP a clearer view of where recurring revenue, invoice accuracy, or service mapping needed attention.

6

The workflow

The MSP followed a reconciliation workflow that started with synced integration data, moved through client mapping and service mapping, and then surfaced discrepancies inside Billing & Invoices.

This helped separate setup-related issues from real billing gaps, making it easier to decide which discrepancies required billing updates, mapping cleanup, or internal follow-up.

7

The takeaway

The biggest lesson was that billing discrepancies are often spread across many small places. A few dollars here, a few missed seats there, and several larger client-level gaps can add up quickly.

By turning reconciliation into a repeatable workflow, MSPs can review billing discrepancies more consistently and focus their attention on the issues with the highest revenue impact.