Overpayment — having paid more than the required amount; the excess payment.
レジで料金を払いすぎたことに気づいて店員に相談した。
I realized I had overpaid at the register and consulted the clerk.
税金の払いすぎは確定申告で還付を受けられる場合がある。
Overpaid taxes can sometimes be refunded through the tax return process.
口座からの自動引き落としで払いすぎが発生した。
An overpayment occurred due to automatic withdrawals from the account.