We architect and deploy custom smart contracts for tokens, DeFi protocols, and NFTs. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and formal verification tools to mitigate risk before a single line of code hits mainnet.
LABS
Services
Tax-Lot Accounting for Fungible Token Trades
Automated, audit-ready accounting for fungible tokenized assets. We implement SpecID, FIFO, and LIFO methods to accurately calculate capital gains/losses across complex trading histories.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production from day one.
- Production-Ready Code: Contracts are built with
Solidity 0.8+and include comprehensive testing, gas optimization, and upgradeability patterns. - Full Audit Support: We prepare contracts for third-party audits and provide remediation, ensuring your protocol meets the highest security standards.
- End-to-End Delivery: From initial design to deployment and verification on
Ethereum,Polygon,Arbitrum, or other EVM chains, we handle the entire lifecycle.
Reduce your time-to-market and technical debt with contracts designed for scale, security, and seamless integration.
key-features-cards
BUILT FOR ENTERPRISE
Core Engine Capabilities
Our tax-lot accounting engine is engineered for high-volume, multi-chain environments. We deliver the precision and reliability required for institutional-grade reporting and compliance.
01
FIFO, LIFO & HIFO Accounting
Automated calculation of capital gains/losses using your chosen accounting method (FIFO, LIFO, HIFO). Eliminates manual spreadsheet errors and ensures IRS/GAAP compliance.
100%
Calculation Accuracy
Real-time
P&L Updates
02
Multi-Chain & Cross-Chain Reconciliation
Seamlessly aggregate and reconcile fungible token trades across Ethereum, Solana, Arbitrum, and other major L1/L2 networks into a single, unified cost-basis ledger.
15+
Networks Supported
< 5 min
Sync Latency
03
Real-Time P&L & Portfolio Tracking
Monitor unrealized gains, realized P&L, and portfolio performance in real-time. Our engine processes every trade and transfer instantly for up-to-the-second accuracy.
Sub-second
Update Speed
24/7
Monitoring
04
Automated Wash Sale Detection
Intelligent detection of wash sale scenarios across wallets and assets to prevent compliance violations. Configurable rules for 30-day windows and identical/substantially identical security checks.
Proactive
Alerts
IRS Rule 1091
Compliance
05
Granular Reporting & Data Export
Generate detailed reports for Form 8949, Schedule D, and internal audits. Export full transaction histories, cost-basis data, and P&L statements via API or CSV.
Unlimited
Report Generation
REST API
Direct Access
06
Enterprise-Grade Security & Audit Trail
SOC 2 Type II compliant infrastructure with immutable audit logs for every calculation. Data is encrypted at rest and in transit, ensuring full traceability and security.
SOC 2
Compliant
Immutable
Audit Logs
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Platform
Our tax-lot accounting engine delivers measurable infrastructure improvements, enabling your platform to scale with confidence and meet enterprise-grade financial standards.
01
Real-Time P&L Calculation
Calculate user portfolio profit and loss instantly for every trade, enabling dynamic margin requirements and real-time risk dashboards.
< 100ms
P&L Query Time
24/7
Real-Time Updates
02
Audit-Ready Financial Reporting
Generate FIFO, LIFO, and HIFO cost-basis reports with immutable on-chain proof, simplifying year-end audits and regulatory compliance.
GAAP/IFRS
Standards Compliant
Immutable
Audit Trail
03
Automated Tax Form Generation
Automatically populate Form 8949 and Schedule D equivalents by jurisdiction, reducing operational overhead and user support tickets.
> 50
Jurisdictions Supported
Zero Manual Entry
Automation
04
Scalable Multi-Chain Support
Process and reconcile fungible token trades across Ethereum, Solana, and Layer 2s from a single, unified accounting ledger.
10+
Networks Supported
Single Source of Truth
Data Model
05
Enterprise-Grade Security & Uptime
Deploy with confidence using our SOC 2 Type II compliant infrastructure, featuring robust disaster recovery and data integrity checks.
99.9%
Uptime SLA
SOC 2 Type II
Compliance
06
Reduced Engineering Burden
Eliminate 6-12 months of in-house development time and ongoing maintenance costs for complex tax-lot accounting logic.
6-12 months
Time Saved
API-First
Integration
A Cost-Benefit Analysis for Engineering Leaders
Build vs. Buy: Tax-Lot Accounting
Compare the total cost, risk, and time investment of developing a compliant tax-lot accounting system in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Chainscore |
|---|---|---|
Time to Market | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Annual Maintenance Cost | $80K - $200K (2-3 engineers) | $15K - $50K (SLA) |
Security & Audit Burden | High (Unaudited, custom code) | Low (Pre-audited, battle-tested) |
Compliance Coverage | FIFO, LIFO, HIFO, ACB, Specific ID | FIFO, LIFO, HIFO, ACB, Specific ID |
Supported Protocols & Chains | Requires ongoing integration work | Ethereum, Polygon, Arbitrum, Base, Solana, Avalanche |
Real-time Calculation Engine | Complex to build and scale | Included (Sub-second latency) |
Regulatory Updates | Your team's responsibility | Managed by Chainscore |
Support & SLAs | Internal team only | 24/7 monitoring & dedicated support |
Total 3-Year Cost of Ownership | $390K - $1M+ | $70K - $225K |
how-we-deliver
A STRUCTURED APPROACH
Our Implementation Process
We deliver production-ready tax-lot accounting in weeks, not months. Our proven process ensures accuracy, compliance, and seamless integration with your existing systems.
01
Discovery & Requirements Analysis
We conduct a deep-dive workshop to map your specific token types, trading venues, and reporting needs. We define the precise FIFO, LIFO, or HIFO accounting methods required for your jurisdiction.
1-2 Days
Workshop Duration
100%
Requirement Clarity
02
Data Pipeline Integration
Our engineers connect to your data sources—exchange APIs (Coinbase, Binance), on-chain indexers (The Graph), and internal databases—to establish a real-time, normalized feed of all fungible token transactions.
Real-time
Data Sync
20+
Pre-built Connectors
03
Core Engine Implementation
We deploy our battle-tested accounting engine, configured for your rules. It processes millions of trades to calculate precise cost basis, realized gains/losses, and generate audit trails for every lot.
< 100ms
Calculation Latency
Zero
Manual Adjustments
05
Security Audit & Validation
Every implementation undergoes a final validation cycle. We reconcile outputs against manual calculations for a sample period and perform a security review of data access and storage configurations.
100%
Accuracy Verified
SOC 2
Compliant Infrastructure
06
Launch & Ongoing Support
We manage the production launch and provide dedicated technical support. Includes monitoring, quarterly updates for new tax regulations, and consultation on complex corporate actions like forks and airdrops.
< 2 Weeks
Go-Live Timeline
99.9% SLA
System Uptime
Tax-Lot Accounting
Frequently Asked Questions
Get clear answers on our methodology, timeline, and support for building compliant tax-lot accounting systems for fungible token trades.
We deliver a production-ready, audited tax-lot accounting module in 4-6 weeks for a standard implementation. This includes requirements analysis, system design, smart contract development, integration with your existing trade data, and a full security audit. Complex integrations with multiple DEXs or custom FIFO/LIFO/HIFO logic may extend the timeline, which we scope and quote upfront.
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