We deliver audit-ready code for ERC-20, ERC-721, ERC-1155, and custom protocols. Our engineers write in Solidity 0.8+ and Rust, leveraging battle-tested libraries like OpenZeppelin to eliminate common vulnerabilities from day one.
LABS
Services
Cross-Chain Tax Reconciliation Engine
We build automated engines that aggregate, normalize, and reconcile taxable events from multiple blockchains into a single, auditor-ready tax report for your users.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- From MVP to Mainnet: Go from spec to a secure, gas-optimized contract in 2-4 weeks.
- Full Lifecycle Support: Development, deployment, verification, and upgrade management via transparent proxies.
- Security-First: Every line undergoes internal review against OWASP Top 10 and common
EVMpitfalls.
We don't just write code; we engineer the financial and operational logic that powers your protocol's trust layer.
key-features-cards
ARCHITECTURE
Core Engine Capabilities
Our engine is built on a modular, API-first architecture designed for enterprise-grade reliability and seamless integration into your existing financial stack.
benefits
STRATEGIC ADVANTAGES
Business Outcomes: Beyond Compliance
Our Cross-Chain Tax Reconciliation Engine delivers more than just regulatory compliance. It unlocks operational efficiency, strategic insights, and financial optimization, turning a compliance requirement into a competitive edge.
01
Real-Time Portfolio Valuation
Gain a unified, real-time view of your total crypto holdings across all chains and wallets. Make informed treasury management and investment decisions with confidence, powered by accurate, consolidated data.
< 5 min
Data Sync Latency
50+
Supported Chains
02
Automated Cost Basis & P&L
Eliminate manual spreadsheet errors. Our engine automatically calculates cost basis, capital gains, and losses for every transaction across DeFi, NFTs, and staking, ensuring audit-ready financials.
FIFO, LIFO, HIFO
Accounting Methods
100%
Audit Trail
03
DeFi-Specific Tax Logic
Accurately handle complex DeFi events like liquidity provisioning, yield farming, lending, and bridging. Our protocol-aware logic ensures tax treatment aligns with evolving regulatory guidance.
200+
DeFi Protocols
Automated
Event Classification
04
Regulatory Report Generation
Generate compliant tax reports (Form 8949, Schedule D, international equivalents) in minutes, not weeks. Supports multiple jurisdictions and filing formats for seamless submission.
IRS, HMRC, ATO
Jurisdictions
PDF, CSV, API
Export Formats
05
Enterprise-Grade Security & Audit
Your financial data is protected with bank-grade encryption, SOC 2 Type II compliant infrastructure, and non-custodial architecture. We never hold your private keys or funds.
SOC 2 Type II
Compliance
AES-256
Encryption
06
Scalable API-First Integration
Embed tax and reporting capabilities directly into your product via our REST APIs. Scale to millions of users without operational overhead, enabling new revenue streams.
99.9%
API Uptime SLA
< 100ms
P95 Latency
Infrastructure Decision Matrix
Build vs. Buy vs. Chainscore
A technical and financial comparison of approaches to implementing a cross-chain tax reconciliation engine for your Web3 application.
| Feature / Factor | Build In-House | Generic Third-Party API | Chainscore Engine |
|---|---|---|---|
Time to Deploy Production System | 6-12 months | 2-4 weeks | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $10K - $50K (API fees) | $75K - $200K |
Coverage: EVM & Non-EVM Chains | Limited (EVM-only) | ||
Real-Time Transaction Ingestion | Your responsibility | ||
Automated Wallet & Token Classification | Basic | Advanced (DeFi, NFTs, Staking) | |
Built-in Cost Basis (FIFO, LIFO, HIFO) | |||
Audit Trail & Data Provenance | Custom build required | Limited logs | Immutable, verifiable logs |
Security & Audit (Smart Contracts, Data) | High risk (unaudited) | Shared risk (black-box) | Enterprise-grade (audited) |
Ongoing Maintenance & Updates | 2-3 FTEs ($200K+/year) | Vendor roadmap | Included in SLA |
Compliance Reporting (Form 8949, etc.) | Manual process | Basic CSV export | Regime-specific templates |
Support & Incident Response | Internal team | Community / Ticket | 24/7 SLA with 4h response |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
We deliver production-ready cross-chain tax engines through a structured, transparent process designed for financial compliance and technical precision.
01
Discovery & Architecture Design
We analyze your multi-chain portfolio and compliance requirements to architect a reconciliation engine tailored to your specific assets and jurisdictions. This phase establishes the data schema, validation rules, and reporting framework.
1-2 weeks
Design Phase
100%
Requirement Mapping
02
Multi-Chain Data Ingestion
We implement robust data pipelines to ingest and normalize transaction data from EVM chains (Ethereum, Polygon, Arbitrum), Solana, and Cosmos SDK chains. Includes handling of raw logs, internal transactions, and protocol-specific events.
20+
Supported Chains
< 5 min
Data Latency
03
Tax Logic & Rule Engine
Our core development phase. We build the rule engine that classifies transactions (swaps, staking, bridging), calculates cost basis per jurisdiction (FIFO, HIFO), and applies wash sale rules. Built with audit trails.
FIFO/HIFO/LIFO
Accounting Methods
IRS/GAAP Compliant
Standards
04
Security Audit & Testing
Every engine undergoes rigorous testing: unit tests for tax logic, integration tests with live chain data, and a final security review focusing on data integrity and calculation accuracy. We provide a comprehensive test report.
100%
Logic Coverage
Zero Tolerance
Data Error Policy
05
Deployment & Integration
We deploy the engine to your cloud environment (AWS/GCP) and integrate it with your existing systems (ERP, accounting software) via secure APIs. Includes load testing and performance benchmarking.
2-3 days
Deployment Time
99.9%
Uptime SLA
06
Ongoing Support & Updates
We provide continuous monitoring, protocol updates for new DeFi primitives, and regulatory updates for tax law changes. Includes quarterly reviews and priority support for reconciliation queries.
< 4 hr
Support Response
Weekly
Protocol Updates
Cross-Chain Tax Reconciliation
Frequently Asked Questions
Get clear answers on how our engine works, implementation timelines, and security standards.
A Cross-Chain Tax Reconciliation Engine is a specialized system that automatically aggregates, normalizes, and calculates tax liabilities from user transactions across multiple blockchains (e.g., Ethereum, Solana, Polygon, Arbitrum). You need one to ensure 100% accurate, audit-ready tax reporting for your users, which is critical for regulatory compliance (like IRS Form 8949). Manual reconciliation is error-prone and impossible at scale; our engine automates this, saving thousands of hours and mitigating compliance risk.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall