diff --git a/src/Makefile.am b/src/Makefile.am
index dbefa71fc67..d5abbc17d3d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -208,6 +208,7 @@ univalue_libbitcoin_univalue_a_SOURCES = \
 libbitcoin_common_a_CPPFLAGS = $(BITCOIN_INCLUDES)
 libbitcoin_common_a_SOURCES = \
   allocators.cpp \
+  amount.cpp \
   base58.cpp \
   chainparams.cpp \
   coins.cpp \
diff --git a/src/amount.cpp b/src/amount.cpp
new file mode 100644
index 00000000000..e6f5b7d4407
--- /dev/null
+++ b/src/amount.cpp
@@ -0,0 +1,31 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "amount.h"
+
+#include "tinyformat.h"
+
+CFeeRate::CFeeRate(const CAmount& nFeePaid, size_t nSize)
+{
+    if (nSize > 0)
+        nSatoshisPerK = nFeePaid*1000/nSize;
+    else
+        nSatoshisPerK = 0;
+}
+
+CAmount CFeeRate::GetFee(size_t nSize) const
+{
+    CAmount nFee = nSatoshisPerK*nSize / 1000;
+
+    if (nFee == 0 && nSatoshisPerK > 0)
+        nFee = nSatoshisPerK;
+
+    return nFee;
+}
+
+std::string CFeeRate::ToString() const
+{
+    return strprintf("%d.%08d BTC/kB", nSatoshisPerK / COIN, nSatoshisPerK % COIN);
+}
diff --git a/src/amount.h b/src/amount.h
index 831fa1f6cad..c0d37954cb0 100644
--- a/src/amount.h
+++ b/src/amount.h
@@ -6,8 +6,49 @@
 #ifndef BITCOIN_AMOUNT_H
 #define BITCOIN_AMOUNT_H
 
-#include <stdint.h>
+#include "serialize.h"
+
+#include <stdlib.h>
+#include <string>
 
 typedef int64_t CAmount;
 
+static const CAmount COIN = 100000000;
+static const CAmount CENT = 1000000;
+
+/** No amount larger than this (in satoshi) is valid */
+static const CAmount MAX_MONEY = 21000000 * COIN;
+inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
+
+/** Type-safe wrapper class to for fee rates
+ * (how much to pay based on transaction size)
+ */
+class CFeeRate
+{
+private:
+    CAmount nSatoshisPerK; // unit is satoshis-per-1,000-bytes
+public:
+    CFeeRate() : nSatoshisPerK(0) { }
+    explicit CFeeRate(const CAmount& _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) { }
+    CFeeRate(const CAmount& nFeePaid, size_t nSize);
+    CFeeRate(const CFeeRate& other) { nSatoshisPerK = other.nSatoshisPerK; }
+
+    CAmount GetFee(size_t size) const; // unit returned is satoshis
+    CAmount GetFeePerK() const { return GetFee(1000); } // satoshis-per-1000-bytes
+
+    friend bool operator<(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK < b.nSatoshisPerK; }
+    friend bool operator>(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK > b.nSatoshisPerK; }
+    friend bool operator==(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK == b.nSatoshisPerK; }
+    friend bool operator<=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK <= b.nSatoshisPerK; }
+    friend bool operator>=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK >= b.nSatoshisPerK; }
+    std::string ToString() const;
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        READWRITE(nSatoshisPerK);
+    }
+};
+
 #endif //  BITCOIN_AMOUNT_H
diff --git a/src/core.cpp b/src/core.cpp
index 73e6de88e1f..ac180cc5098 100644
--- a/src/core.cpp
+++ b/src/core.cpp
@@ -59,29 +59,6 @@ std::string CTxOut::ToString() const
     return strprintf("CTxOut(nValue=%d.%08d, scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30));
 }
 
-CFeeRate::CFeeRate(const CAmount& nFeePaid, size_t nSize)
-{
-    if (nSize > 0)
-        nSatoshisPerK = nFeePaid*1000/nSize;
-    else
-        nSatoshisPerK = 0;
-}
-
-CAmount CFeeRate::GetFee(size_t nSize) const
-{
-    CAmount nFee = nSatoshisPerK*nSize / 1000;
-
-    if (nFee == 0 && nSatoshisPerK > 0)
-        nFee = nSatoshisPerK;
-
-    return nFee;
-}
-
-std::string CFeeRate::ToString() const
-{
-    return strprintf("%d.%08d BTC/kB", nSatoshisPerK / COIN, nSatoshisPerK % COIN);
-}
-
 CMutableTransaction::CMutableTransaction() : nVersion(CTransaction::CURRENT_VERSION), nLockTime(0) {}
 CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {}
 
diff --git a/src/core.h b/src/core.h
index a024dad7407..f7a46da2c13 100644
--- a/src/core.h
+++ b/src/core.h
@@ -16,13 +16,6 @@
 
 class CTransaction;
 
-static const int64_t COIN = 100000000;
-static const int64_t CENT = 1000000;
-
-/** No amount larger than this (in satoshi) is valid */
-static const CAmount MAX_MONEY = 21000000 * COIN;
-inline bool MoneyRange(const CAmount& nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
-
 /** An outpoint - a combination of a transaction hash and an index n into its vout */
 class COutPoint
 {
@@ -109,40 +102,6 @@ public:
     std::string ToString() const;
 };
 
-
-
-/** Type-safe wrapper class to for fee rates
- * (how much to pay based on transaction size)
- */
-class CFeeRate
-{
-private:
-    CAmount nSatoshisPerK; // unit is satoshis-per-1,000-bytes
-public:
-    CFeeRate() : nSatoshisPerK(0) { }
-    explicit CFeeRate(const CAmount& _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) { }
-    CFeeRate(const CAmount& nFeePaid, size_t nSize);
-    CFeeRate(const CFeeRate& other) { nSatoshisPerK = other.nSatoshisPerK; }
-
-    CAmount GetFee(size_t size) const; // unit returned is satoshis
-    CAmount GetFeePerK() const { return GetFee(1000); } // satoshis-per-1000-bytes
-
-    friend bool operator<(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK < b.nSatoshisPerK; }
-    friend bool operator>(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK > b.nSatoshisPerK; }
-    friend bool operator==(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK == b.nSatoshisPerK; }
-    friend bool operator<=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK <= b.nSatoshisPerK; }
-    friend bool operator>=(const CFeeRate& a, const CFeeRate& b) { return a.nSatoshisPerK >= b.nSatoshisPerK; }
-    std::string ToString() const;
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(nSatoshisPerK);
-    }
-};
-
-
 /** An output of a transaction.  It contains the public key that the next input
  * must be able to sign with to claim it.
  */
diff --git a/src/init.cpp b/src/init.cpp
index 70ac5190d30..d928094bbae 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -10,6 +10,7 @@
 #include "init.h"
 
 #include "addrman.h"
+#include "amount.h"
 #include "checkpoints.h"
 #include "compat/sanity.h"
 #include "key.h"
diff --git a/src/main.h b/src/main.h
index 1ef51918c5c..2686ed948f1 100644
--- a/src/main.h
+++ b/src/main.h
@@ -10,6 +10,7 @@
 #include "config/bitcoin-config.h"
 #endif
 
+#include "amount.h"
 #include "chain.h"
 #include "chainparams.h"
 #include "coins.h"
diff --git a/src/miner.cpp b/src/miner.cpp
index eefccfd6418..897f7c56d7e 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -5,6 +5,7 @@
 
 #include "miner.h"
 
+#include "amount.h"
 #include "core.h"
 #include "hash.h"
 #include "main.h"
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index 6db654dff71..c941ebd4caf 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -11,6 +11,7 @@
 #include "bitcoinunits.h"
 #include "guiutil.h"
 
+#include "amount.h"
 #include "init.h"
 #include "main.h"
 #include "net.h"
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index c767835a27f..8af3c46348f 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -3,6 +3,7 @@
 // Distributed under the MIT/X11 software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "amount.h"
 #include "chainparams.h"
 #include "core_io.h"
 #include "init.h"
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index 68bb4068b82..2728fb4fb35 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -3,6 +3,7 @@
 // Distributed under the MIT/X11 software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "amount.h"
 #include "base58.h"
 #include "core_io.h"
 #include "rpcserver.h"
diff --git a/src/txmempool.h b/src/txmempool.h
index 85cf5310ff4..df2fbc78c37 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -8,6 +8,7 @@
 
 #include <list>
 
+#include "amount.h"
 #include "coins.h"
 #include "core.h"
 #include "sync.h"
diff --git a/src/wallet.h b/src/wallet.h
index 06706655f8d..6a4b4b7f8d8 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -6,6 +6,7 @@
 #ifndef BITCOIN_WALLET_H
 #define BITCOIN_WALLET_H
 
+#include "amount.h"
 #include "core.h"
 #include "crypter.h"
 #include "key.h"