🏳️ Base Currency per File

Every tracker file has a base currency (default AUD). All amounts in the file are in that currency. Set it via the file chip long-press → Base currency. For example, a EUR account file for a European bank account alongside your AUD expenses.

🧾 Per-Entry Currencies

Receipts, income entries, subscription entries, and ongoing entries can each record the currency they were actually billed in, even when it differs from the file's base. This is useful for overseas purchases and foreign-currency subscriptions.

Expenses, budgets, accounts, assets, and depreciation files are single-currency: all amounts are in the file's base currency, and the app blocks moving records between files with different currencies.

🔄 Converting When Linking

When a link would carry an amount into a file with a different currency (e.g. creating an expense from a USD receipt into an AUD expense file), a conversion dialog offers three choices:

• Copy as-is: applies your stored exchange rate for that pair (or 1:1 if none)
• Enter manually: type the converted amount or rate yourself
• Convert with Gemini: asks the AI for an approximate historical rate for the transaction date. This option is Gold-only (it needs your own API key; unlike statement import and receipt scanning it has no Silver/credits fallback, since it's a text prompt rather than a document); see AI features

📊 Exchange Rate Table

System Settings → Currency → Exchange rates holds your default rates. Each row has a currency pair, the rate, and the date it applies from, so you can keep historical rates side by side. The reverse direction is derived automatically; you never need to enter both.

🚩 FX Review Flags

Records created through a cross-currency link are flagged with their source currency. The flag marks amounts that came from a conversion, so you can revisit them once you know the exact rate (e.g. the one your bank actually charged) and correct the amount.