Aleksandar is referring to whether you are using the W1 version or a localized version of NAV 2013, because localized versions for different countries have different functionality.
In the North America (NA) version there is no out-of-the-box functionality for handling basic accounting accruals, it's all done through journal entries. The only exception is for inventory, where you can set an interim inventory account for posted receipts, which accrues the inventory cost before the final invoice is posted. The purchase and sales documents have prepayment functionality but it doesn't work well with North American sales taxes. Otherwise if you are referring to prepaid expenses and amortization of prepaids, such as with subscriptions, that would also be handled by journal entries. Recurring journals are useful in this case. It's possible there may be add-ons that can further automate those processes but I'm not aware of any.
Regards,
Rob