diff --git a/ui/app/actions.js b/ui/app/actions.js
index 3afdfaadc..66dc80509 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -917,6 +917,7 @@ function updateGasData ({
   selectedToken,
   to,
   value,
+  data,
 }) {
   return (dispatch) => {
     dispatch(actions.gasLoadingStarted())
@@ -937,6 +938,7 @@ function updateGasData ({
           to,
           value,
           estimateGasPrice,
+          data,
         }),
       ])
     })
diff --git a/ui/app/components/send/send-content/send-content.component.js b/ui/app/components/send/send-content/send-content.component.js
index 9e0ce9c23..1b03ffd2b 100644
--- a/ui/app/components/send/send-content/send-content.component.js
+++ b/ui/app/components/send/send-content/send-content.component.js
@@ -15,18 +15,24 @@ export default class SendContent extends Component {
     showHexData: PropTypes.bool,
   };
 
+  updateGas = (updateData) => this.props.updateGas(updateData)
+
   render () {
     return (
       <PageContainerContent>
         <div className="send-v2__form">
           <SendFromRow />
           <SendToRow
-            updateGas={(updateData) => this.props.updateGas(updateData)}
+            updateGas={this.updateGas}
             scanQrCode={ _ => this.props.scanQrCode()}
           />
-          <SendAmountRow updateGas={(updateData) => this.props.updateGas(updateData)} />
+          <SendAmountRow updateGas={this.updateGas} />
           <SendGasRow />
-          { this.props.showHexData ? <SendHexDataRow /> : null }
+          {(this.props.showHexData && (
+            <SendHexDataRow
+              updateGas={this.updateGas}
+            />
+          ))}
         </div>
       </PageContainerContent>
     )
diff --git a/ui/app/components/send/send-content/send-hex-data-row/send-hex-data-row.component.js b/ui/app/components/send/send-content/send-hex-data-row/send-hex-data-row.component.js
index 063930db3..62a74a77b 100644
--- a/ui/app/components/send/send-content/send-hex-data-row/send-hex-data-row.component.js
+++ b/ui/app/components/send/send-content/send-hex-data-row/send-hex-data-row.component.js
@@ -7,6 +7,7 @@ export default class SendHexDataRow extends Component {
     data: PropTypes.string,
     inError: PropTypes.bool,
     updateSendHexData: PropTypes.func.isRequired,
+    updateGas: PropTypes.func.isRequired,
   };
 
   static contextTypes = {
@@ -14,9 +15,10 @@ export default class SendHexDataRow extends Component {
   };
 
   onInput = (event) => {
-    const {updateSendHexData} = this.props
-    event.target.value = event.target.value.replace(/\n/g, '')
-    updateSendHexData(event.target.value || null)
+    const {updateSendHexData, updateGas} = this.props
+    const data = event.target.value.replace(/\n/g, '') || null
+    updateSendHexData(data)
+    updateGas({ data })
   }
 
   render () {
diff --git a/ui/app/components/send/send-content/send-to-row/send-to-row.component.js b/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
index 434db81e5..17c75c817 100644
--- a/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
+++ b/ui/app/components/send/send-content/send-to-row/send-to-row.component.js
@@ -8,6 +8,7 @@ export default class SendToRow extends Component {
 
   static propTypes = {
     closeToDropdown: PropTypes.func,
+    hasHexData: PropTypes.bool.isRequired,
     inError: PropTypes.bool,
     network: PropTypes.string,
     openToDropdown: PropTypes.func,
@@ -25,8 +26,8 @@ export default class SendToRow extends Component {
   };
 
   handleToChange (to, nickname = '', toError) {
-    const { updateSendTo, updateSendToError, updateGas } = this.props
-    const toErrorObject = getToErrorObject(to, toError)
+    const { hasHexData, updateSendTo, updateSendToError, updateGas } = this.props
+    const toErrorObject = getToErrorObject(to, toError, hasHexData)
     updateSendTo(to, nickname)
     updateSendToError(toErrorObject)
     if (toErrorObject.to === null) {
diff --git a/ui/app/components/send/send-content/send-to-row/send-to-row.container.js b/ui/app/components/send/send-content/send-to-row/send-to-row.container.js
index 1c9c9d518..3ee188bad 100644
--- a/ui/app/components/send/send-content/send-to-row/send-to-row.container.js
+++ b/ui/app/components/send/send-content/send-to-row/send-to-row.container.js
@@ -3,6 +3,7 @@ import {
     getCurrentNetwork,
     getSendTo,
     getSendToAccounts,
+    getSendHexData,
 } from '../../send.selectors.js'
 import {
     getToDropdownOpen,
@@ -22,6 +23,7 @@ export default connect(mapStateToProps, mapDispatchToProps)(SendToRow)
 
 function mapStateToProps (state) {
   return {
+    hasHexData: Boolean(getSendHexData(state)),
     inError: sendToIsInError(state),
     network: getCurrentNetwork(state),
     to: getSendTo(state),
diff --git a/ui/app/components/send/send-content/send-to-row/send-to-row.utils.js b/ui/app/components/send/send-content/send-to-row/send-to-row.utils.js
index 6b90a9f09..0eeaa3a11 100644
--- a/ui/app/components/send/send-content/send-to-row/send-to-row.utils.js
+++ b/ui/app/components/send/send-content/send-to-row/send-to-row.utils.js
@@ -4,9 +4,11 @@ const {
 } = require('../../send.constants')
 const { isValidAddress } = require('../../../../util')
 
-function getToErrorObject (to, toError = null) {
+function getToErrorObject (to, toError = null, hasHexData = false) {
   if (!to) {
-    toError = REQUIRED_ERROR
+    if (!hasHexData) {
+      toError = REQUIRED_ERROR
+    }
   } else if (!isValidAddress(to) && !toError) {
     toError = INVALID_RECIPIENT_ADDRESS_ERROR
   }
diff --git a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
index 92355c00a..dfce7652f 100644
--- a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
+++ b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-container.test.js
@@ -24,6 +24,7 @@ proxyquire('../send-to-row.container.js', {
   },
   '../../send.selectors.js': {
     getCurrentNetwork: (s) => `mockNetwork:${s}`,
+    getSendHexData: (s) => s,
     getSendTo: (s) => `mockTo:${s}`,
     getSendToAccounts: (s) => `mockToAccounts:${s}`,
   },
@@ -41,6 +42,7 @@ describe('send-to-row container', () => {
 
     it('should map the correct properties to props', () => {
       assert.deepEqual(mapStateToProps('mockState'), {
+        hasHexData: true,
         inError: 'mockInError:mockState',
         network: 'mockNetwork:mockState',
         to: 'mockTo:mockState',
diff --git a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js
index 4d2447c32..c779aeb76 100644
--- a/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js
+++ b/ui/app/components/send/send-content/send-to-row/tests/send-to-row-utils.test.js
@@ -29,6 +29,12 @@ describe('send-to-row utils', () => {
       })
     })
 
+    it('should return null if to is falsy and hexData is truthy', () => {
+      assert.deepEqual(getToErrorObject(null, undefined, true), {
+        to: null,
+      })
+    })
+
     it('should return an invalid recipient error if to is truthy but invalid', () => {
       assert.deepEqual(getToErrorObject('mockInvalidTo'), {
         to: INVALID_RECIPIENT_ADDRESS_ERROR,
diff --git a/ui/app/components/send/send-footer/send-footer.component.js b/ui/app/components/send/send-footer/send-footer.component.js
index 518cff06e..230bf450f 100644
--- a/ui/app/components/send/send-footer/send-footer.component.js
+++ b/ui/app/components/send/send-footer/send-footer.component.js
@@ -86,9 +86,9 @@ export default class SendFooter extends Component {
   }
 
   formShouldBeDisabled () {
-    const { inError, selectedToken, tokenBalance, gasTotal, to } = this.props
+    const { data, inError, selectedToken, tokenBalance, gasTotal, to } = this.props
     const missingTokenBalance = selectedToken && !tokenBalance
-    return inError || !gasTotal || missingTokenBalance || !to
+    return inError || !gasTotal || missingTokenBalance || !(data || to)
   }
 
   render () {
diff --git a/ui/app/components/send/send.component.js b/ui/app/components/send/send.component.js
index 0dc973632..fb7beca16 100644
--- a/ui/app/components/send/send.component.js
+++ b/ui/app/components/send/send.component.js
@@ -62,7 +62,7 @@ export default class SendTransactionScreen extends PersistentForm {
     }
   }
 
-  updateGas ({ to: updatedToAddress, amount: value } = {}) {
+  updateGas ({ to: updatedToAddress, amount: value, data } = {}) {
     const {
       amount,
       blockGasLimit,
@@ -86,6 +86,7 @@ export default class SendTransactionScreen extends PersistentForm {
       selectedToken,
       to: getToAddressForGasUpdate(updatedToAddress, currentToAddress),
       value: value || amount,
+      data,
     })
   }
 
diff --git a/ui/app/components/send/send.container.js b/ui/app/components/send/send.container.js
index 6ee8de9aa..87056499f 100644
--- a/ui/app/components/send/send.container.js
+++ b/ui/app/components/send/send.container.js
@@ -86,9 +86,10 @@ function mapDispatchToProps (dispatch) {
       selectedToken,
       to,
       value,
+      data,
     }) => {
       !editingTransactionId
-        ? dispatch(updateGasData({ recentBlocks, selectedAddress, selectedToken, blockGasLimit, to, value }))
+        ? dispatch(updateGasData({ recentBlocks, selectedAddress, selectedToken, blockGasLimit, to, value, data }))
         : dispatch(setGasTotal(calcGasTotal(gasLimit, gasPrice)))
     },
     updateSendTokenBalance: ({ selectedToken, tokenContract, address }) => {
diff --git a/ui/app/components/send/send.utils.js b/ui/app/components/send/send.utils.js
index aa255c3d4..a18a9e4b3 100644
--- a/ui/app/components/send/send.utils.js
+++ b/ui/app/components/send/send.utils.js
@@ -200,16 +200,20 @@ function doesAmountErrorRequireUpdate ({
   return amountErrorRequiresUpdate
 }
 
-async function estimateGas ({ selectedAddress, selectedToken, blockGasLimit, to, value, gasPrice, estimateGasMethod }) {
+async function estimateGas ({
+  selectedAddress,
+  selectedToken,
+  blockGasLimit,
+  to,
+  value,
+  data,
+  gasPrice,
+  estimateGasMethod,
+}) {
   const paramsForGasEstimate = { from: selectedAddress, value, gasPrice }
 
-  if (selectedToken) {
-    paramsForGasEstimate.value = '0x0'
-    paramsForGasEstimate.data = generateTokenTransferData({ toAddress: to, amount: value, selectedToken })
-  }
-
   // if recipient has no code, gas is 21k max:
-  if (!selectedToken) {
+  if (!selectedToken && !data) {
     const code = Boolean(to) && await global.eth.getCode(to)
     if (!code || code === '0x') {
       return SIMPLE_GAS_COST
@@ -218,7 +222,19 @@ async function estimateGas ({ selectedAddress, selectedToken, blockGasLimit, to,
     return BASE_TOKEN_GAS_COST
   }
 
-  paramsForGasEstimate.to = selectedToken ? selectedToken.address : to
+  if (selectedToken) {
+    paramsForGasEstimate.value = '0x0'
+    paramsForGasEstimate.data = generateTokenTransferData({ toAddress: to, amount: value, selectedToken })
+    paramsForGasEstimate.to = selectedToken.address
+  } else {
+    if (data) {
+      paramsForGasEstimate.data = data
+    }
+
+    if (to) {
+      paramsForGasEstimate.to = to
+    }
+  }
 
   // if not, fall back to block gasLimit
   paramsForGasEstimate.gas = ethUtil.addHexPrefix(multiplyCurrencies(blockGasLimit, 0.95, {
diff --git a/ui/app/components/send/tests/send-component.test.js b/ui/app/components/send/tests/send-component.test.js
index d2c2ee926..f4943e707 100644
--- a/ui/app/components/send/tests/send-component.test.js
+++ b/ui/app/components/send/tests/send-component.test.js
@@ -289,6 +289,7 @@ describe('Send Component', function () {
           selectedToken: 'mockSelectedToken',
           to: '',
           value: 'mockAmount',
+          data: undefined,
         }
       )
     })
diff --git a/ui/app/components/send/tests/send-container.test.js b/ui/app/components/send/tests/send-container.test.js
index 85eec6a53..6aa4bf826 100644
--- a/ui/app/components/send/tests/send-container.test.js
+++ b/ui/app/components/send/tests/send-container.test.js
@@ -105,6 +105,7 @@ describe('send container', () => {
         selectedToken: { address: '0x1' },
         to: 'mockTo',
         value: 'mockValue',
+        data: undefined,
       }
 
       it('should dispatch a setGasTotal action when editingTransactionId is truthy', () => {
@@ -117,14 +118,14 @@ describe('send container', () => {
       })
 
       it('should dispatch an updateGasData action when editingTransactionId is falsy', () => {
-        const { selectedAddress, selectedToken, recentBlocks, blockGasLimit, to, value } = mockProps
+        const { selectedAddress, selectedToken, recentBlocks, blockGasLimit, to, value, data } = mockProps
         mapDispatchToPropsObject.updateAndSetGasTotal(
           Object.assign({}, mockProps, {editingTransactionId: false})
         )
         assert(dispatchSpy.calledOnce)
         assert.deepEqual(
           actionSpies.updateGasData.getCall(0).args[0],
-          { selectedAddress, selectedToken, recentBlocks, blockGasLimit, to, value }
+          { selectedAddress, selectedToken, recentBlocks, blockGasLimit, to, value, data }
         )
       })
     })
diff --git a/ui/app/components/send/tests/send-utils.test.js b/ui/app/components/send/tests/send-utils.test.js
index 18dde495a..b72d87eee 100644
--- a/ui/app/components/send/tests/send-utils.test.js
+++ b/ui/app/components/send/tests/send-utils.test.js
@@ -304,10 +304,13 @@ describe('send utils', () => {
       selectedAddress: 'mockAddress',
       to: '0xisContract',
       estimateGasMethod: sinon.stub().callsFake(
-        (data, cb) => cb(
-          data.to.match(/willFailBecauseOf:/) ? { message: data.to.match(/:(.+)$/)[1] } : null,
-          { toString: (n) => `0xabc${n}` }
-        )
+        ({to}, cb) => {
+          const err = typeof to === 'string' && to.match(/willFailBecauseOf:/)
+            ? new Error(to.match(/:(.+)$/)[1])
+            : null
+          const result = { toString: (n) => `0xabc${n}` }
+          return cb(err, result)
+        }
       ),
     }
     const baseExpectedCall = {
@@ -364,6 +367,18 @@ describe('send utils', () => {
       assert.equal(result, '0xabc16')
     })
 
+    it('should call ethQuery.estimateGas without a recipient if the recipient is empty and data passed', async () => {
+      const data = 'mockData'
+      const to = ''
+      const result = await estimateGas({...baseMockParams, data, to})
+      assert.equal(baseMockParams.estimateGasMethod.callCount, 1)
+      assert.deepEqual(
+        baseMockParams.estimateGasMethod.getCall(0).args[0],
+        { gasPrice: undefined, value: undefined, data, from: baseExpectedCall.from, gas: baseExpectedCall.gas},
+      )
+      assert.equal(result, '0xabc16')
+    })
+
     it(`should return ${SIMPLE_GAS_COST} if ethQuery.getCode does not return '0x'`, async () => {
       assert.equal(baseMockParams.estimateGasMethod.callCount, 0)
       const result = await estimateGas(Object.assign({}, baseMockParams, { to: '0x123' }))
@@ -407,7 +422,7 @@ describe('send utils', () => {
           to: 'isContract willFailBecauseOf:some other error',
         }))
       } catch (err) {
-        assert.deepEqual(err, { message: 'some other error' })
+        assert.equal(err.message, 'some other error')
       }
     })
   })