Yes, of course. You can have Malt invoices go to your accounting department for payment. To set this up:
Add your accounting department's contact information within your Company settings
Print or download the invoice from your Projects tab and then send it to your accounting department.
Once you accept a freelancer's quote, the purchase order will be available for print or download from your Projects tab. All you have to do is hover your mouse over the "View documents to download" link associated with each project and then click on "Purchase order."
(The same applies to freelancers as well.)