- Web app
- Our own product
- Accounting workflow
Reckon
Documents, banking and monthly accountant exports without fragile spreadsheets.
Project facts
- Project type
- Web app with month-end closing
- Scope
- Documents · banking · assets · vehicle logs
- Your result
- Monthly export for external accounting
- Live
- Since May 2026
- Python
- FastAPI
- SQLAlchemy
- Alembic
- SQLite
- Next.js
- TypeScript
- Playwright
- Docker
The brief
Reckon is a web app for a small company's accounting inputs: matching documents to bank transactions and finding missing items before month-end. It prepares monthly exports for external accounting, tracks assets, depreciation and vehicle logs, and estimates tax and VAT. We built it; it has been live since May 2026.
Reckon replaced a spreadsheet where one inserted row could break formulas, matching was manual and monthly handover was stressful. It handles the gap between documents, banking and accounting exports rather than replacing accounting software.
What we did
A document finds its payment
Documents arrive automatically and bank transactions come from BankSync. Matching rules run from strongest to weakest; uncertain matches are left to a person. New rules can also be applied to older transactions.
Close a month when it is actually ready
Each month's page shows matched, missing and blocking items. Profit can be viewed by cash flows or documents including depreciation. Exports use the same data without copying it into another spreadsheet.
Covers the work spreadsheets handled separately
Assets and statutory depreciation, company vehicle logs, cash records and scanned eKasa receipts with automatic cropping. All data is in one database with backups and recovery procedures.
Money in cents, data on our own server
Integer-cent calculations avoid rounding differences. The app runs on our own server and uses password plus two-factor authentication. Automated tests cover browser flows and nightly vulnerability checks.
What does this mean for your project?
A custom app does not have to replace your whole accounting system. Your accountant and your accounting software can stay the same. Reckon covers just the gap between invoices and receipts, the bank and the monthly handover: it matches payments to documents, shows what is missing and releases the export only once the month is really done. If you run a similar monthly routine in Excel, such as invoicing, expense approvals or management reports, a tool can be built for it. It works with the rules you already know, checks the month before it is closed and prepares an export for the system you use.
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