Just palm nature (mostly cosmetic). Trim only the brown part with clean scissors and don’t chase perfection. Focus on humidity and filtered water to slow it, not stop it entirely.
What’s causing it
Dry air (low humidity)
How to tell
Just the very tips and edges go brown and papery while the rest of the leaf is fine. This is most common in winter with the heating on, and Areca palm prefers 50–70 % humidity.
The fix
Raise humidity: group plants together, sit the pot on a tray of damp pebbles, or run a humidifier. Misting helps only briefly.
Inconsistent or under-watering
How to tell
The soil dries out hard between waterings, so the tips (the last to get water) crisp first.
The fix
Water more evenly: check the soil regularly and don’t let it go completely bone dry, then soak thoroughly.
Tap-water salts (fluoride/chlorine)
How to tell
A white crust shows on the soil surface or the pot rim, and the tips brown despite even watering.
The fix
Switch to filtered, distilled, or rainwater, and flush the pot occasionally to wash out built-up salts.
Too much direct sun
How to tell
Dry brown patches or scorched edges show up where strong sun hits the leaf. Areca palm wants bright light and some direct sun.
The fix
Filter the harshest midday sun with a sheer curtain for a few weeks, then reintroduce the sunny spot gradually so the leaves can harden off.
Prevention
Some browning is just palm nature indoors, but filtered water and steady humidity slow it down. Trim brown tips for looks. Don’t chase perfection.