Hi,

To start fresh with accounting in Odoo in January 2026, you'll need to prepare your database by "closing out" the 2025 accounting data. Since you can't simply delete entries, the key is to ensure your balance sheet is accurate as of December 31, 2025. This involves reconciling bank accounts, reviewing open invoices, and performing an inventory valuation. Even though you haven't been officially using Odoo for accounting in 2025, try to correct any obvious errors in the existing entries to make the final reconciliation easier.

The most crucial step is to create a journal entry dated December 31, 2025, that zeroes out all your temporary accounts (income and expense accounts) and transfers the net profit/loss to your retained earnings account. To do this, run a Trial Balance report as of December 31, 2025, and create a journal entry with offsetting lines for each income and expense account. The final line will balance the entry to your Retained Earnings account. After posting this entry, verify the Balance Sheet as of December 31, 2025, and correct any discrepancies. Finally, lock the 2025 fiscal year to prevent accidental changes. With these steps completed, you can start entering your 2026 transactions, using the balance sheet balances as of December 31, 2025, as your starting point. Consider consulting with an Odoo consultant or accountant for assistance, and test these changes in a staging database before applying them to your live data.

Hope it helps