Accrue
  
These are not the people who row the boat.
Accrue means "to add over time." When you accrue dirt under your fingernails, you should wash your hands. When you accrue wealth, well, that's just good.
In Accounting Land, accrue is most often applied to interest, income, earnings, or bonuses for which the company is liable to pay annually, but which accrue monthly, and so on. In fact, there's a whole division of accounting cleverly titled accrual accounting, which uses myriad adjustments for risk and timing of revenues and expenses that companies suffer along the way. Its kissing cousin is cash accounting, which tracks only the cash flowing from customer to cashier drawer to bank account regularly.