The lender normally takes a £150 application fee and valuation fee – but will waive the charge for a short time.
It comes after Paragon launched four new two-year fixed portfolio products in October.
The deals start at 2.99% at 75% loan to value (LTV) for single self-contained units and 3.20% for Houses in Multiple Occupation (HMO) and multi-unit blocks.
John Heron, managing director of mortgages at Paragon said: “It’s important to us that our buy-to-let products represent the very best value and choice to our landlord customers and intermediary partners.
“This offer, while only available for a limited time, does just that and we hope it will be a welcome piece of good news for landlords in an otherwise challenging market of late.”