According to Railway's official documentation, "Down-sizing a volume is not currently supported, but increasing size is supported." Railway This applies to both your Postgres and n8n volumes.

However, the good news: You are only charged for the amount of storage you actually use, not the allocated amount. Railway So if you have 50GB allocated but only using 20GB, you're only paying for 20GB. The 50GB limit is just a maximum capacity.

Then why does my monthly bill end up being so high if I only use the bare minimum?

Then why does my monthly bill end up being so high if I only use the bare minimum?

because you’re not just paying for disk size. postgres and n8n are always-on services, so most of the bill comes from cpu + ram + uptime, plus postgres keeps wal files and backups that count as storage. even if your data is small, compute + backups still run 24/7. reducing cost means stopping/deleting unused services, not shrinking the volume.

i hope this help you