Expensify and Rillet Forge Alliance for Real-Time, AI-Powered Accounting

SAN FRANCISCO, CA – September 01, 2026 – In a significant move toward hyper-automated financial operations, expense management leader Expensify has announced a native integration with Rillet, an AI-native Enterprise Resource Planning (ERP) system. The partnership establishes a seamless, two-way data synchronization that promises to eliminate manual accounting work and provide businesses with an unprecedented real-time view of their finances.

This collaboration connects Expensify's widely used platform for expenses, corporate cards, and travel with Rillet’s next-generation ERP, which is built from the ground up on an artificial intelligence framework. For the companies' mutual customers, the integration means that from the moment an employee swipes a card, the transaction is automatically captured, coded, and reflected in the company's core financial records without human intervention.

A Seamless Bridge for Continuous Accounting

The core of the integration lies in its ability to facilitate a 'continuous close'—a modern accounting concept where financial books are kept constantly up-to-date, rather than being reconciled in a frantic, period-end rush. The system is designed to make the flow of expense data effortless and error-free.

Technically, the two-way sync works by first populating Expensify with Rillet's specific chart of accounts, including categories, departmental dimensions, and tax rates. This ensures that when an employee submits an expense, it is coded correctly at the point of spend, adhering to the company's financial structure. Once approved, the data flows back to Rillet automatically. Out-of-pocket expenses are posted as vendor bills, while corporate card transactions appear as credit card charges in the appropriate general ledger accounts. This automated loop extends to reimbursements, keeping all financial data perpetually synchronized.

“Rillet is building exactly the kind of modern ERP our customers are moving to, and this integration means their expenses and card spend just handle themselves. No CSVs, no chasing miscodes. That's what accounting should feel like,” said Nick Tooker, Head of Partnerships at Expensify, in the official announcement.

The elimination of manual data entry and CSV file uploads is a primary benefit, directly addressing a major pain point for finance teams. This automation is expected to drastically reduce the risk of human error and free up accounting professionals to focus on more strategic analysis.

“The future of finance is real-time,” added Nadiv Rahman, Head of Partnerships at Rillet. “With Rillet, when something happens in the business, the books already reflect it. This integration brings expenses into that loop: an employee swipes a card and the transaction arrives in the general ledger coded and reconciled, which is what makes a continuous close possible.”

The Rise of the AI-Native ERP

This partnership also shines a spotlight on the emerging category of AI-native ERPs and the broader concept of 'agentic finance.' Unlike legacy ERP systems from giants like Oracle NetSuite or SAP, where AI is often an added layer, Rillet was architected around AI from its inception in 2021. This foundational difference allows for a deeper level of automation and intelligence.

Rillet's platform is designed to let human finance professionals and AI agents work collaboratively. The company, which recently secured a $100 million Series C funding round, claims its system can automate over 93% of manual accounting functions, from journal entries and accruals to complex multi-entity consolidations. Its AI co-pilot, Aura AI, is designed to slash month-end close times from several days to mere hours.

The integration with Expensify serves as a powerful real-world application of this philosophy. By connecting a critical source of transactional data directly into its AI-driven general ledger, Rillet demonstrates how an entire financial workflow can be automated, audited, and analyzed in real time. This capability is particularly attractive to the hyper-growth startups, public companies, and mid-market enterprises that constitute Rillet's target clientele of over 600 customers.

Strategic Synergy in a Competitive Fintech Landscape

For both companies, this integration is a calculated strategic move within the fiercely competitive financial technology market. The global expense management software market is on a steep growth trajectory, projected to more than double from $8.62 billion in 2026 to $19.24 billion by 2034, fueled by regulatory pressures like the EU's upcoming e-invoicing mandate and a strong push from CFOs to consolidate their disparate finance tools.

For Expensify, partnering with a forward-thinking ERP like Rillet enhances its value proposition, especially for tech-savvy businesses looking to modernize their entire finance stack. It strengthens its position against competitors such as Ramp and Brex, which often market themselves on the strength of their comprehensive, integrated platforms. This move is consistent with Expensify’s recent strategy of expanding its ecosystem through partnerships, including integrations with Campfire ERP and American Airlines, and aligns with its increased investment in proprietary AI capabilities.

For Rillet, the alliance provides a crucial link to a best-in-class expense management solution used by 15 million members worldwide. It allows the company to offer a more complete, end-to-end financial solution without having to build an expense management tool from scratch. This integration validates its AI-native approach and provides a significant channel to attract customers from Expensify's vast user base who are outgrowing traditional accounting software like QuickBooks and are in the market for a more powerful ERP.

Redefining Financial Operations for the Modern Enterprise

The Expensify-Rillet partnership is more than a simple product integration; it represents a tangible step toward the future of the finance department. The industry is rapidly moving away from siloed tools and manual processes, a trend underscored by data showing that fewer than 18% of mid-market firms were still using manual expense reconciliation in 2026, a dramatic drop from 42% in 2020.

By creating a closed-loop system where transactional data is intelligent from its inception, the two companies are helping redefine financial operations as a strategic, real-time function rather than a reactive, back-office chore. Looking ahead, the potential for deeper collaboration is significant. Rillet's underlying Model Context Protocol (MCP) is explicitly designed to allow AI agents to securely interact with its data, opening the door for future enhancements like predictive expense analysis, automated anomaly detection, and intelligent budget forecasting across both platforms. As businesses continue to embrace digital transformation, such deeply integrated and intelligent systems will become the new standard for financial management.