Is There a Charge for a One-time Pickup?

FedEx Express.
A charge applies when you request a pickup, including requests made using FedEx electronic shipping solutions or by calling 1.800.GoFedEx 1.800.463.3339 (say "schedule a pickup"). The charge is itemized separately on your invoice. If you pay by cash (which is not accepted at all pickup locations), check, money order or credit card, the charge will be collected when you tender the package. The charge applies for pickup of FedEx Express® Billable Stamp and FedEx Express® Prepaid Stamp shipments. This charge does not apply if you drop off your package at a FedEx shipping location or if you have regular scheduled pickup.

FedEx Ground.
FedEx Ground provides pickup service upon request, for an additional charge. For regular-scheduled-pickup customers, FedEx Office will assess the weekly pickup fee to the account number associated with the regular scheduled pickup. For customers who do not have a regular scheduled pickup, FedEx Office will assess a per-package on-call pickup charge. On-call pickup charges do not apply if you drop off your package at a FedEx shipping location. On-call pickup charges also do not apply to FedEx Print Return Label, FedEx E-Mail Return Label and FedEx Ground® Package Returns Program pickups.