ERP implementations have a well-documented failure rate. A significant portion of that failure comes from the same source: the project is managed by IT, the system is configured by consultants, and accounting gets involved late – usually to discover that the chart of accounts structure doesn't support their reporting needs, or that the period-end procedures work differently from what they were told, or that data migrated from the old system doesn't reconcile cleanly to the new one.
An implementation accountant is the hire that prevents this. They're the accounting voice in the room during system design, the person who maps the old chart of accounts to the new one before data migration happens, and the one who builds and tests the period-end procedures that the accounting team will use every month after go-live. Without them, accounting fixes problems after the system is live. With them, those problems get caught before they exist.
Implementation accountants are typically project-based: they come in for the duration of a system implementation or migration and leave when the new system is running cleanly. Some companies retain them through the first full close cycle after go-live to ensure the transition is solid.
The core responsibilities:
This is specialized work. An accountant who's never been through a NetSuite or Sage Intacct implementation can't provide the same value as one who has. The consulting firms that manage ERP implementations have technical expertise – they know how the software works. What they often lack is deep accounting judgment about how the software should be configured to serve a specific company's reporting and compliance needs. That judgment is what an implementation accountant brings.
Any time you're migrating from one accounting system to another – QuickBooks to NetSuite, Xero to Sage Intacct, legacy ERP to a modern cloud platform; also when you're implementing a new billing system, revenue recognition module, or consolidation tool that connects to accounting. And when you're acquiring a company and integrating their accounting systems into yours.
The right time to hire an implementation accountant is before the project starts, not during. They need to be in the room when system design decisions are made – those decisions are much harder to reverse after the configuration is locked.
MAVI places implementation accountants with direct prior ERP implementation experience, matched to the specific platforms relevant to your project. Placement takes as fast as five days, with a 14-day trial period included.
Prior experience with the specific ERP being implemented is the most important filter. Ask directly: Have you been through a NetSuite implementation before? What role did you own? Walk me through how you handled the chart of accounts mapping. What issues came up during data migration and how did you resolve them?
Beyond platform experience, look for someone who can articulate the accounting implications of system configuration choices. The best implementation accountants understand both the accounting and the system deeply enough to push back when a consultant proposes something that will create problems downstream.
Most ERP implementation projects run three to nine months from kickoff to go-live. An implementation accountant is typically engaged for the full project duration plus one to two additional months post-go-live to ensure the close process is running smoothly in the new system. Shorter projects – like implementing a revenue recognition module on an existing ERP – may only require two to three months of engagement.
Yes – this is the optimal structure. The implementation consultant handles the technical configuration and project management. The implementation accountant handles the accounting-specific design decisions, validates that the configuration meets accounting requirements, and owns the transition of the accounting team to the new system. They work in parallel, not in sequence.
NetSuite is the most common platform in MAVI's implementation accountant network, followed by Sage Intacct, QuickBooks Enterprise, and Microsoft Dynamics. Candidates with experience in Xero, Netsuite OneWorld, and Workday Financials are also available. When you describe your project, MAVI matches candidates with direct prior experience on your specific platform.
MAVI placements are month-to-month with no minimum commitment, so engagement length can flex with the project timeline. If the implementation is delayed or extended, the accountant