diff --git a/src/komodo_interest.h b/src/komodo_interest.h
index 6355173d8..4d3350545 100644
--- a/src/komodo_interest.h
+++ b/src/komodo_interest.h
@@ -64,9 +64,30 @@ uint64_t komodo_moneysupply(int32_t height)
     else return(COIN * 100000000 + (height-1) * 3 + komodo_earned_interest(height,-1));
 }
 
+uint64_t _komodo_interestnew(uint64_t nValue,uint32_t nLockTime,uint32_t tiptime)
+{
+    int32_t minutes; uint64_t interest = 0;
+    if ( (minutes= (tiptime - nLockTime) / 60) >= 60 )
+    {
+        if ( minutes > 365 * 24 * 60 )
+            minutes = 365 * 24 * 60;
+        minutes -= 59;
+        interest = ((nValue / 10512000) * minutes);
+    }
+    return(interest);
+}
+
+uint64_t komodo_interestnew(int32_t txheight,uint64_t nValue,uint32_t nLockTime,uint32_t tiptime)
+{
+    uint64_t interest = 0;
+    if ( komodo_moneysupply(txheight) < MAX_MONEY && nLockTime >= LOCKTIME_THRESHOLD && tiptime != 0 && nLockTime < tiptime && nValue >= 10*COIN )
+        interest = _komodo_interestnew(nValue,nLockTime,tiptime);
+    return(interest);
+}
+
 uint64_t komodo_interest(int32_t txheight,uint64_t nValue,uint32_t nLockTime,uint32_t tiptime)
 {
-    int32_t minutes,exception; uint64_t numerator,denominator,interest = 0; uint32_t activation;
+    int32_t minutes,exception; uint64_t interestnew,numerator,denominator,interest = 0; uint32_t activation;
     activation = 1491350400;  // 1491350400 5th April
     if ( ASSETCHAINS_SYMBOL[0] != 0 )
         return(0);
@@ -111,11 +132,15 @@ uint64_t komodo_interest(int32_t txheight,uint64_t nValue,uint32_t nLockTime,uin
                         interest = (numerator / denominator);
                     else interest = (numerator * minutes) / ((uint64_t)365 * 24 * 60);
                 }
-                else
+                else if ( txheight < 1000000 )
                 {
                     numerator = (nValue * KOMODO_INTEREST);
                     interest = (numerator / denominator) / COIN;
+                    interestnew = _komodo_interestnew(nValue,nLockTime,tiptime);
+                    //if ( interest != interestnew )
+                        printf("path0 current interest %.8f vs new %.8f for ht.%d %.8f locktime.%u tiptime.%u\n",dstr(interest),dstr(interestnew),txheight,dstr(nValue),nLockTime,tiptime);
                 }
+                else interest = _komodo_interestnew(nValue,nLockTime,tiptime);
             }
             else
             {
@@ -132,12 +157,16 @@ uint64_t komodo_interest(int32_t txheight,uint64_t nValue,uint32_t nLockTime,uin
                         interest = (numerator / denominator) / COIN;
                     else interest = ((numerator * minutes) / ((uint64_t)365 * 24 * 60)) / COIN;
                 }
-                else
+                else if ( txheight < 1000000 )
                 {
                     numerator = (nValue / 20); // assumes 5%!
                     interest = ((numerator * minutes) / ((uint64_t)365 * 24 * 60));
                     //fprintf(stderr,"interest %llu %.8f <- numerator.%llu minutes.%d\n",(long long)interest,(double)interest/COIN,(long long)numerator,(int32_t)minutes);
+                    interestnew = _komodo_interestnew(nValue,nLockTime,tiptime);
+                    if ( interest != interestnew )
+                        printf("path1 current interest %.8f vs new %.8f for ht.%d %.8f locktime.%u tiptime.%u\n",dstr(interest),dstr(interestnew),txheight,dstr(nValue),nLockTime,tiptime);
                 }
+                else interest = _komodo_interestnew(nValue,nLockTime,tiptime);
             }
             if ( 0 && numerator == (nValue * KOMODO_INTEREST) )
                 fprintf(stderr,"komodo_interest.%d %lld %.8f nLockTime.%u tiptime.%u minutes.%d interest %lld %.8f (%llu / %llu) prod.%llu\n",txheight,(long long)nValue,(double)nValue/COIN,nLockTime,tiptime,minutes,(long long)interest,(double)interest/COIN,(long long)numerator,(long long)denominator,(long long)(numerator * minutes));