When you top up your account using a , or via , you will be provided with an itemized invoice, which will detail the purchase you’ve made in terms of participant payments &
Additionally, if you have leftover funds on your account and would like them to be back to your initial payment method, you will be provided with a refund receipt.
To access your full transaction history and to download any related invoices/receipts, you can visit the “” tab of your account page.
Can I generate an invoice in advance of topping up my account?
You can generate an invoice by logging in to Prolific and navigating to the top-up window. From here, click the "Request invoice" tab:
Here, you can specify the amount you wish to be invoiced for (in your account currency), and enter any billing address/additional details you need to be shown on the invoice.
This invoice will be sent to the email address linked to your Prolific account, which you can then pay using a credit/debit card, bank transfer, or forward to your institution as required. When the invoice is paid directly online, the funds will be credited to your account balance automatically.
You can also generate a quote for any study you create on Prolific, broken down into participant rewards + commission + VAT (if applicable).
To do this, create a new study and enter (1) how many participants you want to recruit, and (2) the amount you want to reward to each participant. You can then download a detailed quote from the Action menu based on these parameters, as well as a corresponding invoice for the overall study costs.
If you require an invoice in a different currency prior to topping up (e.g. €EUR or $AUD), please contact support and tell us how much you wish to be invoiced for.
Can I add a purchase order number to invoices?
If you need an invoice displaying a Purchase Order number, you can add this to the "PO Number (if applicable)" field when requesting an invoice (see instructions above). You can then forward the resulting invoice to your institution or finance department, so that they can process it for payment.
Can I get a receipt for individual studies, instead of top-ups?
You can download a summary of the costs of individual studies when they are completed (i.e. all responses reviewed).
The 'Basic' summary will show you the bulk amount paid to participants, along with the commission (+ VAT if applicable) we have taken. The 'Detailed' summary additionally breaks down these costs to individual participant IDs, showing the amounts paid to each participant.
If you require any further assistance in relation to billing, don’t hesitate to reach out!