Money

Construction is paid the moment you build. Everything else, rent coming in and costs going out, is settled once a day at the daily closing at 06:00.

The daily closing

InOut
Rent from every tenant (a game day is a rent month)Maintenance of every room
Service charges from flat ownersUtilities: $4 per person and $60 per elevator car, more in hot or cold weather
Your share of amenity takingsLighting, per kWh used
Wages of janitors and technicians
Waste collection
Loan interest (8 % a year)
Property tax: 0.4 % of what the building cost
Profit tax: 15 % of a positive result

Energy costs follow the city's energy price, which moves a little every day. Taxes follow the city's tax level. Both are shown in the Economy panel.

The Economy panel

Open Economy (⌥⌘M) to see:

Loans

Borrow $500,000 as often as you need, up to $5,000,000 in total. Interest is 8 % a year, charged daily. Repay pays back in the same steps. Some scenarios lower the limit.

Bankruptcy

When your cash is below zero at seven daily closings in a row, the creditors take over and the game is over. The Economy panel warns you: "In the red for 3 of 7 days". Borrow, cut costs or raise income before it gets there.

Where the money comes from