This study investigates the impact of fiscal and monetary policy on economic growth in (SACU) economies between 1980 and 2017. Panel auto regression distributed lags (PARDLs) estimation technique and Pooled mean group (PMG) estimator were utilised in this study. The results indicate that these policies influence economic growth significantly across SACU economics in the long run. However, fiscal policy is only significant if government expenditure is used as the functional policy instrument rather than government revenue. The short run effects of these macroeconomic policies are mixed. Granger causality results indicate that the direction of cointegration is from government, real interest rate, inflation and official exchange rate to economic growth.