An adventurer-owned business can earn enough money to cover its own maintenance costs. However, the owner needs to periodically ensure that everything is running smoothly by tending to the business between adventures.
Besides the expenses associated with maintaining a particular lifestyle, adventurers might have additional drains on their adventuring income. Player characters who come into possession of property, own businesses, and employ hirelings must cover the expenses that accompany these ventures.
It’s not unusual for adventurers — especially after 10th level — to gain possession of a castle, a tavern, or another piece of property. They might buy it with their hard-won loot, take it by force, obtain it in a lucky draw from a deck of many things, or acquire it by other means.
The Maintenance Costs table shows the per-day upkeep cost for any such property. (The cost of a normal residence isn’t included here because it falls under lifestyle expenses, as discussed in the Player’s Handbook.) Maintenance expenses need to be paid every 30 days. Given that adventurers spend much of their time adventuring, staff includes a steward who can make payments in the party’s absence.
Total Cost per Day. The cost includes everything it takes to maintain the property and keep things running smoothly, including the salaries of hirelings. If the property earns money that can offset maintenance costs (by charging fees, collecting tithes or donations, or selling goods), that is taken into account in the table.
Skilled and Untrained Hirelings. The Player’s Handbook explains the difference between a skilled hireling and an untrained one.
| Property | Cost/Day | Skilled Hirelings | Untrained Hirelings |
| Abbey | 20 gp | 5 | 25 |
| Farm | 5 sp | 1 | 2 |
| Guildhall, Town / City | 5 gp | 5 | 3 |
| Inn, Rural / Roadside | 10 gp | 5 | 10 |
| Inn, Town / City | 5 gp | 1 | 5 |
| Keep / Small Castle | 100 gp | 50 | 50 |
| Lodge, Hunting | 5 sp | 1 | - |
| Noble Estate | 10 gp | 3 | 15 |
| Outpost / Fort | 50 gp | 20 | 40 |
| Palace / Large Castle | 400 gp | 200 | 100 |
| Shop | 2 gp | 1 | - |
| Temple, Large | 25 gp | 10 | 10 |
| Temple, Small | 1 gp | 2 | - |
| Tower, Fortified | 25 gp | 10 | - |
| Trading Post | 10 gp | 4 | 2 |