The Multi Currency add-on lets you enter a price once and have visitors see it in their own currency, with exchange rates that refresh themselves daily. It also handles tax display — the part that most commonly causes confusion on cross-border listings.
Enabling this add-on adds a Currency dictionary at FW Real Estate → Dictionaries → Currency. Each entry carries a short name, a rate, and its own tax rate.
Rates refresh automatically. The site pulls the European Central Bank's daily reference rates — no account and no API key required — throttled to once per day and driven by the site's scheduled job. You can still type a rate by hand where you need a fixed one.
Changing the backend currency rebases every rate onto the new one using the rates already on record, so prices stay consistent rather than jumping.
All settings are found at Configuration → Add-ons → Multi-currency.

The tax display setting has four modes:
Tax is calculated using the per-currency tax rate from the Currency dictionary. A currency with a tax rate of 0 shows no tax at all — which is how a single catalogue can serve a VAT market and a non-VAT one simultaneously.
This setting is off by default, and deliberately so. Enabling it sends the visitor's IP address to a third-party lookup service (ipapi.co). With it on, a first-time visitor is shown their own country's currency and, in Let the visitor switch mode, tax-inclusive prices if their country applies VAT. Crawlers are never looked up.
Whether that trade-off is acceptable is a decision about your privacy policy, not a technical one. The setting is a switch precisely so the choice is yours to make.
To install this addon, open the Add-ons panel inside FW Real Estate. See Getting Started → Add-ons for details on free addons, paid addons, and site verification.