user72235: I used an old address I once used to receive a payment; can I still receive funds in that address even though the address on my bitcoin wallet has changed? The vendor claimed he made the payment but I can't find it in my wallet. What do I do?

user63872: An old address can be reused, but its usually recommended you don't do so for privacy reasons. 
Even if you wallet is displaying a new address, it should still show a balance that includes any recent payments made to older addresses. 
To be sure, check the receiving address on a block explorer website, and if the vendor is telling the truth, you should see the recent payment in addition to any past transactions. At that point,  try re-syncing your wallet if the payment isn't displaying properly.

72235: <p>I used an old address I once used to receive a payment; can I still receive funds in that address even though the address on my bitcoin wallet has changed? The vendor claimed he made the payment but I can't find it in my wallet. What do I do?</p>
 63872: <p>An old address <em>can</em> be reused, but its usually recommended you don't do so for privacy reasons. </p>

<p>Even if you wallet is displaying a new address, it should still show a balance that includes any recent payments made to older addresses. </p>

<p>To be sure, check the receiving address on a block explorer website, and if the vendor is telling the truth, you should see the recent payment in addition to any past transactions. At that point,  try re-syncing your wallet if the payment isn't displaying properly.</p>
