Amazon affiliate earnings do not expire as long as you meet the program’s requirements. You need to earn a minimum amount to receive payments. Amazon holds your earnings until they reach the payout threshold. You should check the threshold for your payment method. Amazon closes your account if it remains inactive for too long. You must ensure consistent traffic and sales to keep your account active. Amazon tracks your earnings and credits them to your account. You can withdraw your earnings once you meet the payout criteria. You should always stay updated with Amazon’s policies to avoid losing your account.