Osome
Company incorporation, bookkeeping, accounting, tax filing, and corporate secretarial services with software and human experts
The DIY bookkeeping interface is buildable, but full Osome combines it with human-reviewed books, tax and registry filings, corporate secretarial work, jurisdiction-specific advice, and responsibility for keeping a company compliant. Those services cannot be replaced safely by a one-shot app.
Build verification: not recorded. How we judge buildability
What you give up
- company incorporation, government registry filings, and corporate changes
- qualified bookkeeping review, tax preparation, and statutory filings
- corporate secretary, annual returns, registered address, and nominee services
- live bank and ecommerce feeds with verified reconciliation
- jurisdiction-specific advice, deadline ownership, and human support
Why people still pay
They pay to hand financial admin and filing responsibility to people who know the local rules, verify the work, and help prevent expensive compliance mistakes.
Your build guide
The stack, security requirements, and agent rules for a focused replacement.
Before you start
- accounting model
- bank CSV imports
- secure document storage
- reliable backups
- accountant and tax review
- local company secretary and compliance expertise
Use these project rules and optional skill references alongside the prompt. Review each skill before adding it to your agent; the AGENTS.md export includes the same guidance.
Project rule, data: Model accounts, source transactions, ledger entries, reconciliations, and reports; keep stable source IDs and timestamps.
Project rule, behavior: Honest answer: don't. Osome is not only an accounting dashboard. Its value.
Project rule, recovery: On invalid input or interrupted processing, keep the original record, show the failed step, and permit a safe retry.
Implementation plan
Phase 1, architecture and data
A local web app: Node + Express + better-sqlite3, server-rendered pages on localhost:4780. Model accounts, source transactions, ledger entries, reconciliations, and reports; keep stable source IDs and timestamps.
Phase 2, implement
Honest answer: don't. Osome is not only an accounting dashboard. Its value.
Phase 3, implement
Create customers and sequential invoices with line items, tax rate, due date, and paid status; render PDFs with Playwright.
Phase 4, review and output
Record bills and receipts with date, supplier, amount, tax, category, and a file attachment stored under ./data/documents/. Show cash received, cash spent, outstanding invoices, and expense totals by month; export every table as CSV for my accountant.
Phase 5, recovery and acceptance
On invalid input or interrupted processing, keep the original record, show the failed step, and permit a safe retry. Verify this invariant with a saved fixture: The sum of debits and credits must balance for posted entries; an import retry cannot change the closing balance. State the practical limit: company incorporation, government registry filings, and corporate changes.
Honest answer: don't. Osome is not only an accounting dashboard. Its value includes human-reviewed books, company administration, tax work, and filings under local rules. A one-shot clone can organise financial records, but it cannot safely incorporate a company, act as its secretary, verify its accounts, or take responsibility for compliance. If what you need is a personal financial-admin hub before handing records to your accountant, build this safe slice: - A local web app: Node + Express + better-sqlite3, server-rendered pages on localhost:4780. - Create customers and sequential invoices with line items, tax rate, due date, and paid status; render PDFs with Playwright. - Record bills and receipts with date, supplier, amount, tax, category, and a file attachment stored under ./data/documents/. - Import bank CSV files and apply editable description-to-category rules; keep unmatched transactions in a review queue. - Show cash received, cash spent, outstanding invoices, and expense totals by month; export every table as CSV for my accountant. - Add a manually maintained compliance calendar. Every deadline records its source URL and last-checked date, and the UI labels it unverified until a professional confirms it. - Provide a document vault grouped by financial year and an export command that creates one ZIP containing documents, invoices, and CSV reports. - Back up the SQLite database and document folder nightly to ./backups/YYYY-MM-DD/, keeping 30 copies. No accounts, no telemetry, and no hosted service. - Out of scope: bank API feeds, payroll, incorporation, corporate-secretary work, tax calculations, advice, and government filing. Do not imply that the generated reports are statutory accounts. - Include a README with setup, CSV column mapping, backup recovery, and a warning to have all deadlines, books, and filings checked by qualified local professionals.
$ open in your agent (prompt prefilled, you press enter), copy the prompt or copy AGENTS.md
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Osome pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| operate | — | $58.42/workspace | Selected entry revenue band; unlimited transactions; support response within 6 business hours; 1 annual reportPublished as S$898 billed annually (marketed as S$75/month); converted using ECB reference rates dated 2026-08-07. |
| grow | — | — | Pricing varies by annual revenue; public page does not expose a numeric amount for the selected session |
| scale | — | — | Pricing varies by annual revenue; public page does not expose a numeric amount for the selected session |
free tierno free tier
billingannual prepayment; price selected by annual-revenue band; invoice or credit true-up if revenue changes band
hidden costsXero and government fees are separate. Add-ons include S$200/hour consulting, S$898/year historical accounting, S$750 urgent filing, S$1,000/year first-subsidiary consolidation plus S$300/year each extra, S$300/year translation per subsidiary, S$330 simplified XBRL, and S$550 full XBRL.
pricing sources checked 2026-08-10 · pricing source ↗
Questions about Osome
Can you build your own Osome with AI?
A full replacement is not the recommended project. The DIY bookkeeping interface is buildable, but full Osome combines it with human-reviewed books, tax and registry filings, corporate secretarial work, jurisdiction-specific advice, and responsibility for keeping a company compliant. Those services cannot be replaced safely by a one-shot app.
What does the Osome build prompt cover?
The prompt starts with this scope: Build a local financial-admin hub for invoices, receipts, CSV bank imports, rule-based categorisation, cash reports, compliance reminders, and accountant-ready exports, while leaving filings and professional advice to qualified experts. Full-product capabilities excluded from the comparison include: company incorporation, government registry filings, and corporate changes; qualified bookkeeping review, tax preparation, and statutory filings; corporate secretary, annual returns, registered address, and nominee services. Follow the implementation plan and its prerequisites before expanding the build.
How do I use the prompt, AGENTS.md and agent skills?
Start with the Osome prerequisites and stack, then copy the prompt into your coding agent. Save the project rules as AGENTS.md in the project root. Linked skills are optional packages or source instructions for specific tasks; review their current contents and install only those matching the chosen stack. A skill does not supply API credentials or verify the finished app.
How long will this Osome project take?
The catalogue estimate is not realistically solo for the limited scope. Setup, integration approvals, debugging, deployment and ongoing maintenance can add time. This is an estimate, not a delivery guarantee.
What would I give up by replacing Osome?
company incorporation, government registry filings, and corporate changes; qualified bookkeeping review, tax preparation, and statutory filings; corporate secretary, annual returns, registered address, and nominee services; live bank and ecommerce feeds with verified reconciliation; jurisdiction-specific advice, deadline ownership, and human support. They pay to hand financial admin and filing responsibility to people who know the local rules, verify the work, and help prevent expensive compliance mistakes.
What price is this guide comparing against?
The recorded Operate plan is $58.42/mo (annual billing, per month), checked 2026-08-10. Check the linked pricing source before buying. Building your own also has hosting, API and maintenance costs; the recorded amount is not a guaranteed saving.
What can I use instead of building Osome?
The prior-art section lists Odoo as starting points. Review their current scope, license and maintenance before adopting one.