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Readout errors are a significant source of noise for near term intermediatescale quantum computers. Mismeasuring a qubit as a 1 when it should be 0 occursmuch less often than mismeasuring a qubit as a 0 when it should have been 1. Wemake the simple observation that one can improve the readout fidelity ofquantum computers by applying targeted X gates prior to performing ameasurement. These X gates are placed so that the expected number of qubits inthe 1 state is minimized. Classical post processing can undo the effect of theX gates so that the expectation value of any observable is unchanged. We showthat the statistical uncertainty following readout error corrections is smallerwhen using readout rebalancing. The statistical advantage is circuit- andcomputer-dependent, and is demonstrated for the $W$ state, a Grover search, andfor a Gaussian state. The benefit in statistical precision is most pronounced(and nearly a factor of two in some cases) when states with many qubits in theexcited state have high probability.

Readout Rebalancing for Near Term Quantum Computers