Abstract This research work seeks to examine the impact of savings on financial development in Nigeria. Time series data from 1970 to 2013 were computed from world development indicators. The period was assumed long enough to proffer solution for the improvement of savings in the economy. The study used an Autoregressive Distributed Lagged (ARDL) estimation technique, built on the McKinnon complementary hypothesis framework to investigate the impact of savings on financial development. The result revealed that domestic savings has a positive significant on financial development both in long and short-run in Nigeria. It is also seen that inflation has a negative significant on financial development in the long and short run. The study therefore concluded that since interest on deposit propel depositors to save, the interest rate should be increased in other to enhance savings which in turn leads to effectiveness of the financial system.