Where the Court awards an “additional amount” under CPR 36.17(4)(d) as a claimant / receiving party beating its own Part 36 offer, the additional amount will not attract “enhanced” interest under CPR 36.17(4)(a).
In FZO -v- Adams & Anor  EWHC 1286 (QB) the court allowed an additional amount under CPR 36.17(4)(d), but held that interest under CPR 36.17(4)(a) – enhanced interest at 10% above base rate – was not payable on that amount. Giving judgment, Mrs Justice Cutts found that the construction of CPR 36.17(4)(d) was that the “additional amount” was not a “sum awarded” and that the words “additional” and “amount” mean that the award is in addition to the enhanced interest at CPR 36.17(4)(a).
It should be noted that CPR 36.17(4) states that where the claimant has beaten their own offer the court “…must, unless it considers it unjust to do so, order that the claimant is entitled to…” and thereafter lists the consequences (enhanced interest, additional amount, etc). This does not appear to accord with the judge’s acceptance of the defendant’s submission that the additional amount is not a “sum awarded”. On the construction of CPR 36.17(4) it seems that those consequences are sums awarded by the court, albeit they are sums which the court is bound to award save where it considers it to be unjust.
Notwithstanding, the second strand of the judge’s reasoning appears wholly sound insofar as the “additional amount” is additional to the other consequences and therefore not itself subject to those consequences.
However, practitioners should be aware that this applies only to interest arising under CPR 36.17(4)(a). As the additional amount is a sum which a party is ordered to pay, and (as above) is a sum which the court orders that party to pay, it is a judgment debt and thus interest will, in the author’s opinion, arise under section 17 of the Judgments Act 1838 at the rate of 8% should payment not be made within the prescribed period (14 days pursuant to CPR 40.11 unless otherwise ordered)
Matthew Rose is an Associate in the Costs and Litigation Funding Department at Clarion Solicitors. You can contact him at firstname.lastname@example.org and 0113 222 3248. You can contact the Clarion Costs Team on 0113 246 0622.