diff --git a/libraries/chain/db_market.cpp b/libraries/chain/db_market.cpp
index c009d0b830..e0af516b00 100644
--- a/libraries/chain/db_market.cpp
+++ b/libraries/chain/db_market.cpp
@@ -1249,6 +1249,11 @@ asset database::pay_market_fees(const account_object& seller, const asset_object
                FC_ASSERT( reward < issuer_fees, "Market reward should be less than issuer fees");
                // cut referrer percent from reward
                auto registrar_reward = reward;
+               
+               auto registrar = ( seller.registrar == GRAPHENE_TEMP_ACCOUNT && head_block_time() >= HARDFORK_CORE_1800_TIME ) 
+                                 ? GRAPHENE_COMMITTEE_ACCOUNT 
+                                 : seller.registrar;
+
                if( seller.referrer != seller.registrar )
                {
                   const auto referrer_rewards_value = detail::calculate_percent( reward.amount,
@@ -1263,7 +1268,8 @@ asset database::pay_market_fees(const account_object& seller, const asset_object
                      deposit_market_fee_vesting_balance(seller.referrer, referrer_reward);
                   }
                }
-               deposit_market_fee_vesting_balance(seller.registrar, registrar_reward);
+               deposit_market_fee_vesting_balance(registrar, registrar_reward);
+               
             }
          }
       }
diff --git a/libraries/chain/hardfork.d/CORE_1800.hf b/libraries/chain/hardfork.d/CORE_1800.hf
new file mode 100644
index 0000000000..39d8334cc8
--- /dev/null
+++ b/libraries/chain/hardfork.d/CORE_1800.hf
@@ -0,0 +1,4 @@
+// bitshares-core issue #1800 Fix "Temp-account market fee sharing"
+#ifndef HARDFORK_CORE_1800_TIME
+#define HARDFORK_CORE_1800_TIME (fc::time_point_sec( 1600000000 )) // Tue, 23 Jul 2019 13:35:00 UTC
+#endif
diff --git a/tests/tests/market_fee_sharing_tests.cpp b/tests/tests/market_fee_sharing_tests.cpp
index 2ba95b2c5b..378c8f63dc 100644
--- a/tests/tests/market_fee_sharing_tests.cpp
+++ b/tests/tests/market_fee_sharing_tests.cpp
@@ -96,6 +96,12 @@ struct reward_database_fixture : database_fixture
       database_fixture::generate_block();
    }
 
+   void generate_blocks_past_hf1800()
+   {
+      database_fixture::generate_blocks( HARDFORK_CORE_1800_TIME );
+      database_fixture::generate_block();
+   }
+
    asset core_asset(int64_t x )
    {
        return asset( x*core_precision );
@@ -431,18 +437,85 @@ BOOST_AUTO_TEST_CASE(create_actors)
 
       const account_object alice = create_account("alice", izzyregistrar, izzyreferrer, 50/*0.5%*/);
       const account_object bob   = create_account("bob",   izzyregistrar, izzyreferrer, 50/*0.5%*/);
+      const account_object old = create_account("old", GRAPHENE_TEMP_ACCOUNT(db), GRAPHENE_COMMITTEE_ACCOUNT(db), 50u);      
 
       // prepare users' balance
       issue_uia( alice, jillcoin.amount( 20000000 ) );
 
       transfer( committee_account, alice.get_id(), core_asset(1000) );
       transfer( committee_account, bob.get_id(),   core_asset(1000) );
+      transfer( committee_account, old.get_id(),   core_asset(1000) );      
       transfer( committee_account, izzyregistrar.get_id(),  core_asset(1000) );
       transfer( committee_account, izzyreferrer.get_id(),  core_asset(1000) );
    }
    FC_LOG_AND_RETHROW()
 }
 
+BOOST_AUTO_TEST_CASE(fee_shares_between_temp_acc_and_committee_acc)
+{
+   try
+   {
+      INVOKE(create_actors);
+
+      generate_blocks_past_hf1268();
+      GET_ACTOR(jill);
+
+      constexpr auto jillcoin_reward_percent = 2*GRAPHENE_1_PERCENT;
+      const asset_object &jillcoin = get_asset("JCOIN");
+
+      flat_set<account_id_type> whitelist;
+      update_asset(jill_id, jill_private_key, jillcoin.get_id(), jillcoin_reward_percent, whitelist);
+
+      BOOST_CHECK_EQUAL( get_market_fee_reward( GRAPHENE_TEMP_ACCOUNT(db), jillcoin), 0);
+      BOOST_CHECK_EQUAL( get_market_fee_reward( GRAPHENE_COMMITTEE_ACCOUNT(db), jillcoin), 0);
+
+      GET_ACTOR(alice);
+      GET_ACTOR(old);
+
+      create_sell_order( alice, jillcoin.amount(100000), core_asset(1) );
+      create_sell_order( old, core_asset(1), jillcoin.amount(100000) );
+
+      BOOST_CHECK_GT( get_market_fee_reward( GRAPHENE_TEMP_ACCOUNT(db), jillcoin), 0);
+      BOOST_CHECK_GT( get_market_fee_reward( GRAPHENE_COMMITTEE_ACCOUNT(db), jillcoin), 0);
+
+   }
+   FC_LOG_AND_RETHROW()
+   
+}
+
+BOOST_AUTO_TEST_CASE(fee_do_not_shares_between_temp_acc_and_committee_acc)
+{
+   try
+   {
+      INVOKE(create_actors);
+
+      generate_blocks_past_hf1800();
+      GET_ACTOR(jill);
+
+      constexpr auto jillcoin_reward_percent = 2*GRAPHENE_1_PERCENT;
+      const asset_object &jillcoin = get_asset("JCOIN");
+
+      flat_set<account_id_type> whitelist;
+      update_asset(jill_id, jill_private_key, jillcoin.get_id(), jillcoin_reward_percent, whitelist);
+
+      BOOST_CHECK_EQUAL( get_market_fee_reward( GRAPHENE_TEMP_ACCOUNT(db), jillcoin), 0);
+      BOOST_CHECK_EQUAL( get_market_fee_reward( GRAPHENE_COMMITTEE_ACCOUNT(db), jillcoin), 0);
+
+      GET_ACTOR(alice);
+      GET_ACTOR(old);
+
+      create_sell_order( alice, jillcoin.amount(100000), core_asset(1) );
+      create_sell_order( old, core_asset(1), jillcoin.amount(100000) );
+
+
+      BOOST_CHECK_EQUAL( get_market_fee_reward( GRAPHENE_TEMP_ACCOUNT(db), jillcoin), 0);
+      BOOST_CHECK_GT( get_market_fee_reward( GRAPHENE_COMMITTEE_ACCOUNT(db), jillcoin), 0);
+
+   }
+   FC_LOG_AND_RETHROW()
+   
+}
+
 BOOST_AUTO_TEST_CASE(white_list_is_empty_test)
 {
    try