Connect to Every Accounting Platform. Build Once. Own It Forever.

Your SaaS customers need accounting integration. Building it yourself takes months of R&D in unfamiliar territory. Unified APIs like Merge and Codat charge recurring per-user fees that scale with your customer base forever. There is a third way: a custom unified integration layer you build once, own outright, and never pay per-user fees on again.

Unified accounting integration platform connecting SaaS products to multiple accounting platforms

The Problem

Your Customers Want Accounting Integration. Yesterday.

How many deals did your sales team lose last quarter because a prospect asked “Do you integrate with QuickBooks?” and the answer was “not yet”? Your SaaS product needs to sync invoices, payments, and financial data with QuickBooks, Xero, and NetSuite. Each platform has its own API, authentication flow, rate limits, and undocumented quirks. Building each integration in-house means pulling your engineering team off your core product for months.

Unified APIs Sound Great Until You See the Bill

Merge, Codat, and Rutter all charge recurring fees per user, per connection, or per transaction. As your customer base grows, so does your bill. At scale, these costs can reach hundreds of thousands of dollars per year. Worse: you do not own the integration layer. If Merge changes their pricing, deprecates a feature, or shuts down an endpoint, you are at their mercy.

Generic Data Models Do Not Handle Real Accounting

Unified API providers map every accounting platform to one generic data model. In practice, that means lowest-common-denominator accounting. Chart of accounts structures vary by platform, industry, and country. Tax rules differ by jurisdiction. Multi-currency handling has platform-specific requirements. Your customers’ accountants will find the gaps.

Stop Paying Per User. Own Your Integration Layer.

Talk to a Solutions Advisor

The Solution: Your Own Unified Integration Platform

One API, Every Platform

Satva builds a custom integration layer that connects your SaaS product to QuickBooks Online, QuickBooks Desktop, Xero, Sage, NetSuite, Business Central, MYOB, and more through a single API endpoint. Your engineering team writes one set of API calls. Adding a new accounting platform means extending the layer we already built, not rebuilding from scratch.

Accounting Logic Built In

Your integration does not just move data. It understands accounting. Our team includes a qualified Chartered Accountant who validates the logic behind every integration. Chart of accounts mapping respects account types and hierarchies. Multi-currency handling matches each platform’s methodology. Tax calculations follow jurisdiction-specific rules.

You Own It. No Per-User Fees.

Unlike Merge, Codat, or Rutter, the integration layer Satva builds is yours. You own the code, the infrastructure, and the data flow. One-time development cost. No recurring per-user charges. No connection fees. No transaction cuts. Your margins improve as your customer base grows.

Ship to App Marketplaces

Want to reach millions of potential customers through the QuickBooks App Store or Xero App Marketplace? We build integrations that meet Intuit’s and Xero’s marketplace requirements from day one. We handle the certification process, the security reviews, and the technical requirements. You get listed where your customers are already looking.

Platforms We Support

  • QuickBooks Online 100+ integrations delivered. Published on QB App Store. QuickBooks Certified.
  • QuickBooks Desktop Legacy and modern connectivity. Desktop-to-cloud migration expertise.
  • Xero Certified Xero developer. Recognized on Xero developer forum.
  • Sage Sage 50, Sage Intacct, Sage Business Cloud. Multi-version support.
  • NetSuite SuiteTalk/REST. SuiteScript development. Custom record and saved search integration.
  • Business Central Dynamics 365 Business Central API. AL extension development.
  • MYOB MYOB Certified Integration Developer. Australian market expertise.
  • FreshBooks Invoice and expense sync. Time tracking integration.
  • Zoho Books Strategic Consulting & Implementation Partner for Zoho Financial Suite.
  • Wave Free accounting platform integration for SMB-focused SaaS products.
  • Clearbooks UK market accounting platform. MTD compliance.
  • Odoo Open-source ERP integration. Custom module development.

Need a platform not listed here? We have connected SaaS products to 50+ accounting and ERP systems. Talk to a Solutions Advisor about your specific requirements.

How It Compares

Satva Custom Build

One-time development investment. Fully custom to your data model and workflows. Chartered Accountant validates all logic. Complete edge case coverage across 100+ projects. You own the code and infrastructure. 8-16 weeks for first platform, 2-4 weeks per additional. Annual cost at scale: zero you already own it.

Unified APIs (Merge, Codat, Rutter)

Recurring per-user, per-connection, or per-transaction fees that grow with your customer base. Limited to generic data models. No accounting expertise generic data mapping only. Partial edge case coverage. Vendor-owned you rent access. Live in days but with limited scope. Annual cost at scale: significant and ever-increasing.

In-House Development

Full-time engineer salaries at senior market rates. Full control but you build everything from scratch. Only works if you hire accounting-savvy engineers. Edge case coverage depends on your team’s accounting API experience. 3-6 months per platform minimum.

Frequently Asked Questions

How long does it take to build?
The first platform typically takes 8-16 weeks, depending on the complexity of your data model and the target accounting platform. Each additional platform takes 2-4 weeks because the integration layer architecture is already in place. Every engagement starts with a low-cost discovery sprint where we map your data model, identify edge cases, and define the integration architecture before development begins.
What if we already use Merge or Codat?
We can migrate you off. We reverse-engineer your current data flows, build the custom integration layer to match (and extend) what you have, and transition your customers without downtime. You keep the integration capability. You lose the per-user bill. Most clients break even on the migration investment within 6-12 months.
Do we need accounting expertise on our team?
No. That is the entire point. Our team includes a qualified Chartered Accountant who understands debits and credits, accrual vs. cash basis, multi-entity consolidation, tax jurisdiction rules, and reconciliation logic. Your engineering team focuses on your core product. We handle the accounting complexity.
What about ongoing maintenance?
You own the code, so you have options. We offer support and maintenance plans for teams that want hands-off management monitoring, bug fixes, API version updates, and new platform additions. Or we can train your engineering team to maintain the integration layer independently. Either way, you are never locked in.

Stop Paying Per User for Accounting Integration

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