River CSV Import & Cost Basis Overrides | v1.0.0-beta.8
River exchange CSV imports, manual cost basis overrides, improved CSV mapping DSL, and better error reporting.
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Bitcoin accounting,
from wallet to report.
Guides for Bitcoin accounting, wallet integration, cost basis tracking, and tax reporting. Practical walkthroughs for Lightning nodes, hardware wallets, and multisig setups.
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Clams v1: Local-First Accounting for Bitcoin, Lightning, and Liquid
Clams is out of beta: local-first, double-entry books, transfer-aware. Buy a license.
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Latest posts
Lightning Node Accounting Guide: Routing Fees & Taxes (2026)
Track Lightning node income, channel events, and routing fees for accurate tax reporting. A complete Bitcoin accounting guide for node operators.
Custom Connections Guide | Import Any CSV Into Clams
Step-by-step guide to import any exchange or wallet CSV into Clams using the Custom connection. Learn how to create CSV mappings that transform your data into Bitcoin accounting records.
Clams REST API Guide | For Developers & Coding Agents
Developer and coding agent guide to the Clams Server REST API. Bitcoin accounting with auth, wallet connections, syncing, and reports.
Bitcoin Accounting Infrastructure | Clams V1 Beta
Clams rebuilt from the ground up in Rust. One binary, two interfaces: CLI and Server. Run locally or deploy your own server. Bitcoin accounting infrastructure.
Phoenix Wallet Tax Guide: Lightning & On-Chain Cost Basis
Track your Phoenix Wallet transactions for Bitcoin taxes. Free guide covers Lightning + on-chain cost basis with a native CSV import. Done in minutes.
Clams: Building the Bitcoin Accounting Layer
A year of building, listening and learning. From desktop app to Bitcoin accounting infrastructure.
Unchained Vault Tax & Cost Basis Guide: Step-by-Step Setup (2026)
Connect your Unchained multisig vault to Bitcoin accounting software in minutes. Track cost basis, generate reports for your accountant, keep your accounting data local.
Sparrow Wallet Bitcoin Accounting Setup | Step-by-Step
Step-by-step guide to connect your Sparrow wallet to Clams Bitcoin accounting software. Sync transactions automatically using Xpubs or Descriptors for seamless tax reporting and cost basis tracking.
Bitcoin-Only vs Crypto Accounting Software: Why Generic Tools Fail
Generic crypto accounting tools weren't built for Lightning channels, multisig, or UTXO-level tracking. A detailed comparison of Bitcoin-only vs multi-chain accounting approaches.
Private Bitcoin Accounting | Local-First by Design
How Clams keeps your Bitcoin accounting private: your books stay local on your device or your own server, with no product-usage tracking or telemetry. Privacy by design.
Bitcoin Capital Gains Report Export | Tax Report Feature
We're excited to introduce the first version of our brand-new Exports Widget...