Why is my invoice underpaid/overpaid?

Paying the fiat value of the invoice (USD, EUR, etc) instead of the cryptocurrency amount due

Cryptocurrency exchange rates often differ among wallets and services. This means that amounts denominated in fiat (USD, EUR, etc) in your wallet or account service could be less or more than the actual amount needed to pay the BitPay Invoice.

If you manually enter the invoice amount in your wallet before sending, always enter the exact Amount Due displayed on the invoice, as indicated in green in the screenshot below.

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Using a cryptocurrency exchange to make the payment

Cryptocurrency exchanges typically don't send individual payments and batch multiple transactions together for cost savings. This can cause payment errors like under/over payments if the exchange rate changes before the transaction is sent.

BitPay suggests sending your cryptocurrency to a payment protocol wallet (like the BitPay Wallet) and then making the invoice payment to minimize the chance of a payment error which would result in a refund.

Not including a miner fee when making the payment

Review your paying wallet settings to confirm that a correct miner fee or transaction fee amount is included in your payment.

We suggest using the BitPay Wallet. Its dynamic fee calculation feature ensures the minimum fee is included to get the fastest transaction confirmation.