Build Custom Payroll and Compliance Automation for Your SMB
Syntora is an AI automation consultancy that offers custom payroll and compliance solutions for SMBs. We build systems from scratch that handle state-specific tax filings and automated payroll calculations.
Key Takeaways
- Syntora is an AI automation consultancy that builds custom payroll and compliance solutions for SMBs.
- The systems automate calculations for multi-state taxes, deductions, and benefits contributions.
- Syntora connects directly to bank data via Plaid and payment processors like Stripe for financial accuracy.
- A custom PostgreSQL ledger can process bank transaction syncs in under 3 seconds.
Syntora builds custom payroll and compliance solutions for SMBs, drawing on experience creating financial automation systems. A previously built system connected Plaid and Stripe to a custom PostgreSQL ledger, processing bank syncs in under 3 seconds. This approach ensures financial accuracy and auditability for business-critical operations.
The project's complexity depends on the number of states you operate in and your compensation structure. A business with 20 employees in one state is a different scope than a 45-person company with remote employees in five states and complex commission plans. Syntora has direct experience building the core financial ledger these systems require.
Why Do Finance Teams Still Process Payroll and Compliance Manually?
Many SMBs start with off-the-shelf payroll software like Gusto or QuickBooks Payroll. These tools work well for standard W-2 employees in a single state but falter when complexity increases. They cannot handle non-standard compensation, such as commissions tied to Salesforce data or equity distributions that require specific tax withholding. Their APIs are often limited, preventing you from building the custom financial reports you need.
Here is a common failure scenario. A 30-person company with remote employees hires someone in California. The finance lead now must manually register for a CA EDD account, figure out state disability insurance withholding, and update the payroll profile. QuickBooks might flag the new state, but it does not perform the 10-step external registration process. This single hire creates 4-5 hours of error-prone administrative work.
This is a structural problem. Off-the-shelf tools are multi-tenant SaaS products designed for the most common use cases. Their data models are fixed and their business logic is inflexible. You cannot add a custom field to track a specific benefit deduction or connect directly to a proprietary sales database. The only option is to create workarounds with spreadsheets, which introduces risk and consumes hours of valuable time every pay cycle.
How Syntora Engineers Custom Payroll and Compliance Systems
The first step is a complete audit of your current payroll process. Syntora maps every step, from new hire onboarding to quarterly tax filings, to identify the specific compliance rules that create the most manual work. This audit produces a data flow diagram showing how information moves between your HRIS, bank, and accounting ledger. You receive a clear picture of the bottlenecks before any code is written.
We built financial systems connecting Plaid and Stripe to a custom PostgreSQL ledger, and would use a similar pattern for your payroll system. A central PostgreSQL database acts as the source of truth for all calculations, ensuring an auditable record. A FastAPI service pulls employee data from your HRIS, applies state-specific tax rules using Python, and calculates net pay. For scheduled jobs like initiating direct deposits, we use AWS Lambda to keep monthly hosting costs under $50.
The delivered system is an API and a simple dashboard that orchestrates, rather than replaces, your existing tools. Your team uses a secure interface to review and approve payroll runs. The system generates the necessary ACH files for direct deposit and tax payments, providing detailed journal entries for your general ledger. You receive the full source code and a runbook for maintenance.
| Manual Payroll Process | Syntora's Automated System |
|---|---|
| Time to run payroll | 4-8 hours per pay period |
| Compliance risk | High risk of errors in state tax calculations |
| Reporting capability | Manual export to spreadsheets for analysis |
Key Benefits
One Engineer From Call to Code
The person on your discovery call is the engineer who writes every line of code. No handoffs, no project managers, no miscommunication.
You Own Everything
You receive the full source code in your own GitHub repository and a runbook for maintenance. There is no vendor lock-in or recurring per-seat fees.
Realistic 4-6 Week Timeline
A typical custom payroll automation build takes 4-6 weeks from kickoff to launch. The initial audit defines a fixed scope and timeline with no surprises.
Support for Changing Regulations
Optional monthly support covers updates for new tax laws and compliance rules. You have an experienced engineer on call when regulations change.
Real Financial Engineering
Syntora has built financial systems with Plaid, Stripe, and custom PostgreSQL ledgers. We understand transaction integrity and data security.
The Process
Discovery and Compliance Audit
A 60-minute call to map your current payroll process and compliance pain points. You receive a scope document detailing the proposed automation within 48 hours.
Architecture and Data Mapping
You grant read-access to relevant systems. Syntora designs the database schema and API endpoints and gets your explicit approval before starting the build.
Iterative Build and Validation
You get bi-weekly demos of working software. We validate calculation logic against past pay stubs to ensure 100% accuracy before the system goes live.
Handoff and Ongoing Support
You receive the complete source code, deployment scripts, and a detailed runbook. Syntora monitors the first two payroll cycles post-launch to ensure stability.
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The Syntora Advantage
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We assess your business before we build anything
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Fully private systems. Your data never leaves your environment
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Typically built on shared, third-party platforms
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Zero disruption to your existing tools and workflows
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Full training included. Your team hits the ground running from day one
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You own everything we build. The systems, the data, all of it. No lock-in
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Code and data often stay on the vendor's platform
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