Multi-Currency Support

How to add and manage multiple currencies in Forbidden Finance, including exchange rates, tier limits, and base currency conversion.

Overview

Forbidden Finance supports multi-currency tracking so you can manage finances across different currencies in one place. Add the currencies you use, and the app automatically converts all values to your base currency for consistent totals in budgets, net worth, and reports. Exchange rates are updated automatically, so your converted balances stay current without manual effort.

The number of currencies you can add depends on your plan.

Currency Limits by Tier

Tier	Currencies
Free	1 (your base currency only)
Starter	Up to 3
Pro	Up to 10
Premium	Unlimited

Your base currency always counts as one of your available slots.

How to Add a Currency

Open Settings

Tap the Settings icon in the navigation bar.

Select Multi-Currency

Tap Multi-Currency or Currencies to view your current currency list.

Tap Add Currency

Tap the + button or Add Currency. Search for the currency by name or code (e.g., "Euro" or "EUR").

Select and confirm

Tap the currency to add it to your list. It is immediately available for use when adding accounts, transactions, or assets.

How Currency Conversion Works

All monetary values in Forbidden Finance are displayed in two ways:

Original currency — The actual currency of the transaction or account (e.g., EUR 50.00).
Base currency equivalent — The converted value in your base currency (e.g., USD 54.25), shown alongside or beneath the original.

Totals in budgets, net worth, and reports are always calculated in your base currency. This gives you a single, consistent view of your finances regardless of how many currencies you use.

Exchange Rates

Exchange rates are updated automatically on a regular basis. You do not need to enter or update rates manually. The app uses the latest available rate for all conversions.

Key details about exchange rate behavior:

Spot rates — Conversions use the most recently available market rate.
Historical transactions — Transactions are stored in their original currency and amount. The displayed base currency equivalent uses the current exchange rate, not the rate at the time of the transaction.
Rate refresh — Rates are updated multiple times per day to reflect market movements.

Setting Your Base Currency

Your base currency is configured in your profile settings. It is the currency used for all aggregate calculations: budget totals, net worth, report summaries, and dashboard widgets.

To change your base currency:

Go to Settings > Profile.
Change the Base Currency field.
Save. All displayed values are recalculated using the new base currency and current exchange rates.

Changing your base currency does not alter your underlying data. Transactions, account balances, and asset values remain in their original currencies. Only the displayed conversions change.

Using Multiple Currencies Day-to-Day

Once you have multiple currencies enabled, they appear as options throughout the app:

Adding transactions — Choose the transaction currency from a dropdown. If you have a EUR account, transactions default to EUR.
Manual accounts — Set the account's currency when you create it. All transactions in that account use the account's currency.
Connected accounts — The currency is determined by the bank account and cannot be changed.
Assets and liabilities — Set the currency when adding the entry.
Budget — Your budget always uses your base currency. Transactions in other currencies are converted automatically.