RareMargin is an AI-native general ledger with continuous close for finance teams at SaaS companies. It is made and sold by Sudip Kumar, Kalikapur, Haltu.
| Product | General ledger with continuous close: revenue and AR, spend and AP, cash, controls and reports |
|---|---|
| For | Finance teams at SaaS companies |
| Price | $99 a month per company, every feature included |
| Free trial | 14 days, no card needed |
| Made by | Sudip Kumar, Kalikapur, Haltu |
| Contact | support@raremargin.com |
| Payments | Dodo Payments, merchant of record |
| Runs on | Cloudflare, with the database on Neon in AWS US East |
01What is RareMargin?
RareMargin is an AI-native general ledger with continuous close for finance teams at SaaS companies.
Revenue schedules, prepaid amortization, accruals and bank matching post to one double-entry ledger as they happen. An AI assistant drafts the entries you would otherwise write by hand, and nothing it drafts reaches the books until a person approves it.
02Who makes RareMargin?
RareMargin is made and sold by Sudip Kumar, Kalikapur, Haltu. You can reach the team at support@raremargin.com.
Subscriptions are sold through Dodo Payments, the merchant of record, which takes the payment, issues the invoice and handles sales tax or VAT.
03Where does RareMargin run, and who processes data?
RareMargin runs on Cloudflare, keeps the books in a Neon database on AWS in the US East region, and uses OpenAI only for the assistant.
| Provider | What it does |
|---|---|
| Cloudflare | Hosting, protection from attacks, and email |
| Neon (Databricks) | The database and its backups, on AWS US East |
| OpenAI | The model behind the assistant and AI-built dashboards; not used for training |
| Google (Gmail) | The inbox for support and billing email |
| Dodo Payments | Checkout, payment, invoices, tax and refunds |
The privacy policy and the data processing terms list what each one receives.
04How does RareMargin keep the books trustworthy?
Every entry must balance, every posted entry is sealed in a SHA-256 hash chain, 11 controls run continuously, and nobody can approve their own entry.
People sign in with a password and, optionally, an authenticator app, and each has one of four roles. API keys carry a role too, and AI agents can only propose.
05What doesn’t RareMargin do yet?
RareMargin has no SOC 2 report, no single sign-on, no direct bank connections and no native integrations with billing or CRM tools yet.
- Bank transactions come in by CSV upload or through the API.
- Other systems connect through the REST API, webhooks and the MCP server.
- It is a finance system, not a full ERP: there is no inventory, order management or payroll.
If one of these matters to you, write to support@raremargin.com; it helps decide what comes next.
06How much does RareMargin cost?
$99 a month per company, with every feature included, after a 14-day free trial that needs no card. You can cancel any time, and you can get a full refund within 14 days of your first payment.
