One deterministic engine for IFRS 16, ASC 842, IFRS 15, and ASC 606. Auditable for humans, API-callable by your AI agents. Upload from Excel, connect via MCP, or integrate your ERP — same engine, same audit trail, every time. $49/month, both modules included.
No signup · no sales call · paste one URL into Claude or ChatGPT
AI can read your data. It cannot produce audit-grade accounting on its own.
Ledger Layer enforces the rules in between.
How it works
What makes Ledger Layer different from "ChatGPT + a spreadsheet": the boundaries between layers are enforced at the system level, not by policy.
AI reads your Excel, PDF, or natural-language input and proposes structured records. It never touches the math. Schema-validated tools refuse anything malformed.
Present value, amortisation, revenue recognition, journal amounts — all computed by code, version-pinned, with hash-verified output. Same inputs always produce the same numbers.
Nothing posts without a preparer/reviewer sign-off. Approved journal entries are immutable. Every write logged with actor, timestamp, and request ID.
Open sandbox · live now
Watch how the engine works, connect Claude or ChatGPT to the sandbox, then ask a real question. Same engine the training runs on, same dataset. No signup, no sales call — synthetic, read-only dataset, production data is never exposed.
STEP 01 · WATCH
Built by an ex-Big 4 IFRS team. Covers the four-layer architecture, three Excel failure modes, why AI alone doesn't fix it, and three live demos against the same sandbox you'll connect to in step 2.
Sandbox runs on sandbox.ledgerlayer.app — separate subdomain, synthetic dataset, read-only. Production data is never exposed.
How we compare
Excel can be audited but can't be queried by AI. AI can be queried but can't be audited. Ledger Layer does both.
| Capability | Ledger Layer | Excel / Sheets | ChatGPT / Claude | Lease SaaS |
|---|---|---|---|---|
AI-ready accounting data | ✓ Structured, queryable | ✕ Unstructured | ~ Interprets, doesn't verify | ✕ Closed data |
Deterministic compute | ✓ Hash-verified | ~ Silent formula drift | ✕ Not audit-grade | ✓ Varies by vendor |
All four standards (IFRS 16, ASC 842, IFRS 15, ASC 606) | ✓ One engine | ✕ Build each manually | ~ Approximate only | ✕ Lease only |
Approval gate + immutability | ✓ DB-enforced | ✕ Any cell, any time | ✕ None | ~ Workflow-dependent |
AI agent interface (MCP) | ✓ 75+ tools | ✕ | ✕ | ✕ |
Disclosure packs (paragraph-cited) | ✓ Auto, $0.01 tie-out | ✕ Manual | ~ Draft only | ~ Varies |
Want a deeper head-to-head? vs Excel · vs Big 4 · vs Visual Lease · vs Nakisa
Pricing
Lease accounting systems cost $25K–$100K/year. Revenue recognition systems cost the same again. Big 4 managed services run $50K–$200K/year. Ledger Layer bundles both from $49/month.
Single-entity deployment. Move from Excel to infrastructure.
Get startedMulti-entity. Full MCP interface. Every new module free.
Get startedFor data-sovereignty and large multi-entity groups.
Talk to the teamNeed the full feature-by-feature breakdown? See the comparison table on /pricing
FAQ
More questions? Talk to the team
Documentation & roadmap
Live today: IFRS 16, ASC 842, IFRS 15, ASC 606. Thirty additional standards on the pipeline through 2027 — every Professional-tier customer gets each new module automatically, free.
Right-of-use assets, lease liabilities, modifications, disclosure requirements, exemptions.
Read guide →Operating and finance lease classification, transition methods, lessee and lessor accounting.
Read guide →Five-step revenue model, performance obligations, variable consideration, contract costs.
Read guide →US GAAP revenue recognition, principal vs agent, licensing, contract modifications.
Read guide →Full OpenAPI 3.1 documentation. Pagination, streaming, file upload, webhooks, error codes.
View docs →75+ schema-validated tools for Claude, GPT, and custom agents. Full tool catalog and examples.
View tools →Standards implementation pipeline
Compare in depth
Upload your Excel, connect your AI, or integrate your ERP. Audit-ready in minutes — no implementation project.