diff --git a/src/routes/safe/component/AddTransaction/createTransactions.js b/src/routes/safe/component/AddTransaction/createTransactions.js
index c29be7d0..f13db071 100644
--- a/src/routes/safe/component/AddTransaction/createTransactions.js
+++ b/src/routes/safe/component/AddTransaction/createTransactions.js
@@ -7,6 +7,7 @@ import { makeTransaction, type Transaction, type TransactionProps } from '~/rout
 import { getGnosisSafeContract } from '~/wallets/safeContracts'
 import { getWeb3 } from '~/wallets/getWeb3'
 import { type Safe } from '~/routes/safe/store/model/safe'
+import { sameAddress } from '~/wallets/ethAddresses'
 
 export const TX_NAME_PARAM = 'txName'
 export const TX_DESTINATION_PARAM = 'txDestination'
@@ -21,14 +22,14 @@ export const buildConfirmationsFrom =
       throw new Error('This safe has no owners')
     }
 
-    if (!owners.find((owner: Owner) => owner.get('address').toLowerCase() === creator.toLowerCase())) {
+    if (!owners.find((owner: Owner) => sameAddress(owner.get('address'), creator))) {
       throw new Error('The creator of the tx is not an owner')
     }
 
     return owners.map((owner: Owner) => makeConfirmation({
       owner,
-      status: owner.get('address') === creator,
-      hash: owner.get('address') === creator ? confirmationHash : undefined,
+      status: sameAddress(owner.get('address'), creator),
+      hash: sameAddress(owner.get('address'), creator) ? confirmationHash : undefined,
     }))
   }
 
diff --git a/src/routes/safe/component/Transactions/processTransactions.js b/src/routes/safe/component/Transactions/processTransactions.js
index cffea581..b84ebb53 100644
--- a/src/routes/safe/component/Transactions/processTransactions.js
+++ b/src/routes/safe/component/Transactions/processTransactions.js
@@ -6,6 +6,7 @@ import { type Confirmation, makeConfirmation } from '~/routes/safe/store/model/c
 import { makeTransaction, type Transaction, type TransactionProps } from '~/routes/safe/store/model/transaction'
 import { getGnosisSafeContract } from '~/wallets/safeContracts'
 import { getWeb3 } from '~/wallets/getWeb3'
+import { sameAddress } from '~/wallets/ethAddresses'
 import { EXECUTED_CONFIRMATION_HASH } from '~/routes/safe/component/AddTransaction/createTransactions'
 
 export const updateTransaction = (
@@ -72,8 +73,9 @@ const execConfirmation = async (
 const updateConfirmations = (confirmations: List<Confirmation>, userAddress: string, txHash: string) =>
   confirmations.map((confirmation: Confirmation) => {
     const owner: Owner = confirmation.get('owner')
-    const status: boolean = owner.get('address') === userAddress ? true : confirmation.get('status')
-    const hash: string = owner.get('address') === userAddress ? txHash : confirmation.get('hash')
+    const samePerson = sameAddress(owner.get('address'), userAddress)
+    const status: boolean = samePerson ? true : confirmation.get('status')
+    const hash: string = samePerson ? txHash : confirmation.get('hash')
 
     return makeConfirmation({ owner, status, hash })
   })
@@ -91,7 +93,7 @@ export const processTransaction = async (
   const confirmations = tx.get('confirmations')
   const userHasAlreadyConfirmed = confirmations.filter((confirmation: Confirmation) => {
     const ownerAddress = confirmation.get('owner').get('address')
-    const samePerson = ownerAddress === userAddress
+    const samePerson = sameAddress(ownerAddress, userAddress)
 
     return samePerson && confirmation.get('status')
   }).count() > 0
diff --git a/src/routes/safe/container/selector.js b/src/routes/safe/container/selector.js
index 4e3fbf83..e3451292 100644
--- a/src/routes/safe/container/selector.js
+++ b/src/routes/safe/container/selector.js
@@ -6,6 +6,7 @@ import { providerNameSelector, userAccountSelector } from '~/wallets/store/selec
 import { type Safe } from '~/routes/safe/store/model/safe'
 import { type Owner } from '~/routes/safe/store/model/owner'
 import { type GlobalState } from '~/store/index'
+import { sameAddress } from '~/wallets/ethAddresses'
 
 export type SelectorProps = {
   safe: SafeSelectorProps,
@@ -30,7 +31,7 @@ export const grantedSelector: Selector<GlobalState, RouterProps, boolean> = crea
       return false
     }
 
-    return owners.find((owner: Owner) => owner.get('address').toLocaleLowerCase() === userAccount.toLocaleLowerCase()) !== undefined
+    return owners.find((owner: Owner) => sameAddress(owner.get('address'), userAccount)) !== undefined
   },
 )
 
diff --git a/src/routes/safeList/store/selectors/index.js b/src/routes/safeList/store/selectors/index.js
index 93989643..40ed28b4 100644
--- a/src/routes/safeList/store/selectors/index.js
+++ b/src/routes/safeList/store/selectors/index.js
@@ -5,6 +5,7 @@ import { type GlobalState } from '~/store/index'
 import { type Safe } from '~/routes/safe/store/model/safe'
 import { userAccountSelector } from '~/wallets/store/selectors/index'
 import { type Owner } from '~/routes/safe/store/model/owner'
+import { sameAddress } from '~/wallets/ethAddresses'
 
 export const safesMapSelector = (state: GlobalState): Map<string, Safe> => state.safes
 const safesListSelector: Selector<GlobalState, {}, List<Safe>> = createSelector(
@@ -17,10 +18,5 @@ export const safesByOwnerSelector: Selector<GlobalState, {}, List<Safe>> = creat
   safesListSelector,
   (userAddress: string, safes: List<Safe>): List<Safe> =>
     safes.filter((safe: Safe) =>
-      safe.owners.filter((owner: Owner) => {
-        const ownerLower = owner.get('address').toLowerCase()
-        const userLower = userAddress.toLowerCase()
-
-        return ownerLower === userLower
-      }).count() > 0),
+      safe.owners.filter((owner: Owner) => sameAddress(owner.get('address'), userAddress)).count() > 0),
 )
diff --git a/src/wallets/ethAddresses.js b/src/wallets/ethAddresses.js
new file mode 100644
index 00000000..ed301735
--- /dev/null
+++ b/src/wallets/ethAddresses.js
@@ -0,0 +1,3 @@
+// @flow
+export const sameAddress = (firstAddress: string, secondAddress: string): boolean =>
+  firstAddress.toLowerCase() === secondAddress.toLowerCase()