Escrow Engine

Overview

Escrow exists to solve a simple but persistent problem in commerce: a buyer does not want to pay before receiving what they were promised, and a seller does not want to deliver before being paid. Pay Engineers builds escrow engines that hold funds neutrally between two or more parties and release them only when contractually defined conditions are satisfied, giving both sides confidence to transact.

This is not a generic hold-and-release feature bolted onto a checkout. It is a dedicated engine modelling milestones, conditions, disputes and evidence, because in practice escrow only earns trust when the rules around release and dispute are transparent, consistently enforced and fully auditable after the fact.

We design the engine so that dispute handling is a core feature rather than an exception path, since disputes are precisely the moments when the value of a well-built escrow system becomes most visible to the parties relying on it.

Who This Is For

• B2B marketplaces where transaction values are high enough that trust needs an explicit mechanism
• Freelance and services platforms managing milestone-based project payments
• Platforms trading in high-value goods, such as property deposits, vehicles or luxury items
• Any business that currently manages conditional fund holding manually through bank transfers and email confirmations

What You Get

• Milestone-based release logic so funds move automatically when predefined delivery or approval conditions are met
• Dispute handling workflows that pause release, collect evidence from both parties and support a documented resolution
• An immutable audit trail recording every hold, milestone update, release and dispute event with full timestamps and actor identity
• Webhook notifications so your platform and both counterparties stay informed of status changes in real time

Technical Approach

The engine is built on Laravel with PostgreSQL as the durable store for escrow state, and we apply event-sourcing patterns to the escrow lifecycle specifically: every state transition, from initial fund hold through milestone completion to final release or refund, is recorded as an immutable event rather than an in-place update. This gives you a system where the current state is always derivable from history, and history can never be silently altered.

Milestones are modelled as a configurable sequence rather than a single hold-and-release step, so you can support anything from a simple two-party transaction to multi-stage project payments with partial releases at each stage. Dispute workflows branch the milestone sequence into a formal resolution path, capturing evidence, timelines and the eventual outcome as part of the same permanent event log used for the happy path.

Delivery Process

• Discovery of your transaction types, typical milestone structures and dispute scenarios
• Escrow and milestone data model design, reviewed against real-world edge cases such as partial delivery or late disputes
• Sprint-based build of core hold and release logic, followed by dispute workflows and notifications
• Scenario testing across happy-path releases, partial releases, disputes and refund cases
• Rollout starting with a controlled transaction category before extending to your full catalogue

Outcomes and Benefits

• Higher buyer and seller confidence in high-value or first-time transactions on your platform
• A defensible, timestamped record of every escrow decision, valuable in the event of a legal or regulatory challenge
• Reduced manual intervention in dispute handling through structured evidence collection
• A flexible milestone model that can support new transaction types as your platform grows