With two weeks to go before tax day, state Controller John Chiang is urging Californians who haven't yet completed their tax returns to visit the Web site of the Franchise Tax Board. Chiang says a completed tax return might be waiting for you. The tax board has automatically completed returns for roughly 250,000 residents who were single, had no dependents and had only one employer last year. Taxpayers can accept the return, make changes or disregard it. The so-called "ReadyReturn" was one of several tips Chiang outlined for last-minute filers. Last year, more than two-thirds of all California taxpayers received state refunds of more than $850, Chiang said.