Ledgerage

Ledgerage is a lease-accounting calculator with a web interface, REST API and MCP integration. It fits accountants, controllers, small businesses and developers who need outputs tied to ASC 842, IFRS 16 or GASB 87. Its strongest case is traceable, automatable lease work at a modest monthly price; its boundary is that users must supply and assess the accounting inputs themselves.

Overview

Ledgerage converts lease data into present value, right-of-use assets, lease liabilities, amortization schedules, journal entries and disclosure outputs. The web calculator can be used without an account, so a single lease calculation does not require a setup commitment. For recurring work, the product adds saved leases, portfolio management and API access, with limits that make the difference between occasional and operational use.

The engine supports ASC 842, IFRS 16 and GASB 87. Ledgerage describes its calculations as deterministic, cites the applicable accounting standard and reconciles each amortization schedule to zero at the end of the term. Those properties provide useful review points and make an automated result easier to trace, but they do not resolve judgment about assumptions or correct an inaccurate input. Results are informational rather than accounting or legal advice.

Key features

Calculations and reporting

The core output set goes beyond present-value math: users can produce right-of-use assets, liabilities, amortization schedules, journal entries and disclosures. Pro adds lease modifications and remeasurements, which matters when contracts change after initial recognition. This is a better fit for a controller's continuing lease process than a calculator limited to an opening liability.

API automation

The REST API accepts JSON and can return lease computations, schedules, journal entries or classifications, with citations to the relevant standard. Developers can therefore put lease calculations inside another application or workflow instead of copying results from a browser. API authentication supports Bearer tokens and the x-api-key header; Ledgerage says it stores only a hash of each key, a sensible control for integrations.

AI-agent access

The MCP server exposes four tools and identifies Claude Desktop and Claude Code as compatible clients. MCP is included on Free, while Pro adds a hosted MCP server, making the paid tier more suitable when an organization wants a managed agent connection rather than a local or basic integration.

Pricing

Plan	Price	What it includes
Free	free	Unlimited single-lease calculations, two saved leases, 25 API computations per month, 10 API requests per minute and MCP
Pro	$39 a month	Month-to-month with no contract; unlimited lease portfolio, 1,000 saved leases, 5,000 API computations per month, 120 requests per minute, Excel/CSV/PDF exports, modifications and remeasurements, and hosted MCP

The Free plan is appropriate for occasional calculations, evaluation and very small portfolios. “Unlimited” applies to single-lease calculations, not saved-lease capacity or API use: two saved leases and 25 monthly computations will constrain a team automating more than a handful of cases. Pro's $39 monthly price and no-contract renewal suit a small accounting operation that needs exports, a larger portfolio or meaningful API throughput. The 1,000-lease ceiling is generous for many small businesses, but it remains a stated cap. There is no free trial; the no-account calculator is described as free forever, so it is the practical way to assess the workflow before paying.

Platforms

Ledgerage is available through its web calculator and REST API. MCP support provides an additional integration path for compatible AI clients. The API reference directs questions to [email protected].

Who it's for

Accountants and controllers should consider Ledgerage when they need standard-aware schedules, entries and disclosures with an audit trail that can be reviewed. Small businesses get a low-cost starting point, provided two saved leases and 25 monthly API computations cover their needs. Developers embedding lease logic will value JSON requests, standard citations and higher Pro rate limits. AI accounting agents are a distinct fit because of MCP access. It is not the right choice for anyone seeking a substitute for professional accounting judgment.

Pros and cons

Pros

• Broad standards coverage: ASC 842, IFRS 16 and GASB 87 support varied reporting requirements.
• Traceable outputs: Standard citations, deterministic calculations and zero-end reconciliation give reviewers concrete checks.
• Useful automation surface: The REST API returns schedules, entries and classifications, while Pro raises throughput to 5,000 computations per month and 120 requests per minute.
• Low-friction entry: The calculator needs no account and Free costs nothing.

Cons

• Free capacity is narrow: Only two saved leases and 25 API computations per month make Free unsuitable for a growing portfolio.
• Important workflow features are paid: Exports, modifications, remeasurements and a hosted MCP server require Pro.
• Judgment remains with the user: Informational results cannot replace accounting or legal advice, especially when inputs are uncertain.
• No trial plan: Prospective subscribers must assess the product through the free calculator rather than a time-limited Pro trial.

Alternatives

Browse Lease Accounting Software for a wider category comparison. Choose 16Leases instead if native iOS, Linux, macOS, Windows or self-hosted deployment matters, or if you want a free trial; its free account is limited to one user. iLeasePro is the alternative to consider for web plans organized around contract counts, with Essential at $240.00 per month for up to 50 contracts and Professional at $480.00 per month for up to 150.

LeaseAccounting.app suits teams wanting a free tier with two leases, three users and three entities, though its exports are watermarked. ROU Asset is worth considering for up to five leases with ASC 842, extraction, reports, alerts and an audit trail at no cost. LeaseLedger offers a free workspace for up to three leases, one client workspace and one teammate. Infor Public Sector, SAP Business One and Planon are broader business platforms rather than directly comparable lease calculators.

Verdict

Ledgerage is a strong choice for accountants, controllers and developers who need standards-aware lease calculations that can be inspected and embedded, especially when $39 per month covers the portfolio and export requirements. Start with Free for occasional work or validation, but look elsewhere if your workflow exceeds its saved-lease and API caps, requires a Pro trial, or needs accounting decisions made for you rather than calculated from your inputs.