Ledgerage

Ledgerage is a lease-accounting calculator with portfolio tools and a REST API for producing accounting outputs. It suits accountants, controllers and developers who need calculations they can trace to a lease standard. Its free calculator is a useful starting point; portfolio scale, exports and higher API capacity require Pro.

Overview

Ledgerage calculates lease present value, right-of-use assets, liabilities, amortization schedules, journal entries and disclosures under ASC 842, IFRS 16 and GASB 87. A web calculator works without an account, while the API supports workflows that need calculations returned programmatically.

The product says its engine is deterministic, cites the applicable accounting standard and reconciles each amortization schedule to zero at term end. These checks help make outputs reviewable, but they do not settle the judgments behind a lease. Ledgerage describes results as informational, dependent on user inputs and judgments, and not accounting or legal advice.

Key features

Calculations and reporting

Core calculations span three standards and include schedules, journal entries and disclosures. This makes Ledgerage more useful than a narrow present-value calculator for accounting work, though the outputs still depend on sound inputs and review. Pro adds lease modifications and remeasurements, which matters for teams managing changes across a portfolio.

API and AI integration

The REST API accepts JSON and returns computations, schedules, journal entries or classifications with citations to the relevant standard. Developers can use that to embed lease calculations in another workflow. Free access allows 25 API computations per month; Pro raises that to 5,000 and raises the request rate from 10 to 120 per minute, a material difference for recurring or higher-volume use.

The MCP server exposes four tools and names Claude Desktop and Claude Code as compatible clients. Free includes MCP, while Pro includes a hosted MCP server. API keys can be sent as Bearer tokens or through the x-api-key header; Ledgerage says it stores only a hash of each key.

Pricing

The free calculator is described as free forever, not as a trial, and requires no account. It is well suited to occasional single-lease work, but two saved leases and the API quota constrain ongoing portfolio or automated use. Pro is the practical step up for teams that need saved portfolio capacity, exports or more API throughput; its 1,000-lease ceiling remains relevant for larger books. There is no free trial.

Platforms

Ledgerage is available on the web and through an API. Its MCP server names Claude Desktop and Claude Code as compatible clients, making it relevant to users building AI-agent workflows as well as conventional integrations.

Who it's for

Accountants and controllers can use the calculator and reporting outputs for lease work across supported standards. Small businesses may find the no-account calculator sufficient for occasional calculations. Developers embedding lease computations can start with the API quota, but sustained use calls for Pro. It is not a fit for anyone expecting the software to replace accounting judgment or provide accounting or legal advice.

Pros and cons

• Pros: No-account, free-forever single-lease calculations make occasional use accessible.
• Pros: Standard citations and schedules that reconcile to zero at term end help reviewers follow and check results.
• Pros: Pro combines portfolio tools, exports and higher API capacity with month-to-month billing and no contract.
• Cons: The free plan saves only two leases and caps API use at 25 computations a month, limiting ongoing work.
• Cons: Pro's 1,000 saved-lease limit may not suit larger portfolios.
• Cons: Results rely on user inputs and judgments, so the calculations are not a substitute for professional advice.

Alternatives

For a broader comparison, browse Lease Accounting Software.

• 16Leases may suit someone who wants a one-user trial account or lease editing and customized payment schedules on its Premium plan.
• iLeasePro is an alternative for web users comparing paid plans priced by contract capacity.
• LeaseAccounting.app may appeal to teams whose free tier's three users and three entities matter alongside its two-lease cap.
• LeaseLedger is worth comparing for users who want a free tier with a client workspace and teammate.
• ROU Asset may fit users seeking a free tier for up to five leases with exports, reports, alerts and an audit trail.
• Infor Public Sector is another paid option, with pricing by contact.
• Planon is another paid web option with a free trial.
• SAP Business One may suit businesses seeking a paid product priced by quote based on requirements.

Verdict

Ledgerage is a strong fit for accountants and controllers who want traceable lease calculations, and for developers who need standards-cited results through an API. Its free calculator offers a low-friction way to handle single leases, while Pro adds the portfolio, export and throughput capacity needed for sustained work. Look elsewhere if your portfolio exceeds 1,000 saved leases or you need software to make accounting judgments for you.