diff --git a/conf/messages.cy b/conf/messages.cy
index 46ce4b7e..b404dbb0 100644
--- a/conf/messages.cy
+++ b/conf/messages.cy
@@ -413,7 +413,7 @@ whatNewProtectionTypeEnhancement.individualProtection2014 = Diogelwch unigol 201
 whatNewProtectionTypeEnhancement.individualProtection2016 = Diogelwch unigol 2016
 whatNewProtectionTypeEnhancement.checkYourAnswersLabel = Beth yw’r math newydd o ddiogelwch sydd gennych ar gyfer eich lwfans oes?
 whatNewProtectionTypeEnhancement.error.required = Dewiswch y math newydd o ddiogelwch lwfans oes sydd gennych
-whatNewProtectionTypeEnhancement.change.hidden = cy : your new lifetime allowance protection type
+whatNewProtectionTypeEnhancement.change.hidden = cy: your new lifetime allowance protection type
 
 lifetimeAllowanceCharge.title = A ydych wedi cael tâl lwfans oes o 6 Ebrill 2015 i 5 Ebrill 2023?
 lifetimeAllowanceCharge.heading = A ydych wedi cael tâl lwfans oes o 6 Ebrill 2015 i 5 Ebrill 2023?
@@ -551,7 +551,7 @@ whoPaidAACharge.checkYourAnswersLabel = cy: Who paid the annual allowance tax ch
 
 howMuchAAChargeSchemePaid.title = Faint o dâl treth lwfans blynyddol a dalodd eich cynllun pensiwn rhwng {0}?
 howMuchAAChargeSchemePaid.heading = Faint o dâl treth lwfans blynyddol a dalodd eich cynllun pensiwn {0}?
-howMuchAAChargeSchemePaid.checkYourAnswersLabel = How much annual allowance tax charge did your pension scheme pay between {0}?
+howMuchAAChargeSchemePaid.checkYourAnswersLabel = cy: How much annual allowance tax charge did your pension scheme pay between {0}?
 howMuchAAChargeSchemePaid.error.nonNumeric = Mae’n rhaid i swm y tâl treth lwfans blynyddol a dalwyd gan eich cynllun pensiwn rhwng {0} fod yn rhif cyfan
 howMuchAAChargeSchemePaid.error.required = Nodwch faint o dâl treth lwfans blynyddol a dalodd eich cynllun pensiwn rhwng {0}
 howMuchAAChargeSchemePaid.error.wholeNumber = Mae’n rhaid i swm y tâl treth lwfans blynyddol a dalwyd gan eich cynllun pensiwn rhwng {0} fod yn rhif cyfan
@@ -656,7 +656,7 @@ ltaPensionSchemeDetails.error.taxRef.required = Nodwch Gyfeirnod Treth y Cynllun
 ltaPensionSchemeDetails.error.taxRef.invalid = Mae’n rhaid i Gyfeirnod Treth y Cynllun Pensiwn ar gyfer y cynllun sy’n talu’r tâl ychwanegol gynnwys y llythrennau A i Z, rhifau 0 i 9 yn unig
 
 adjustedIncome.caption = cy: Annual allowance from 6 April {0} to 5 April {1}
-adjustedIncome.title = Adjusted income - Annual allowance from {0}
+adjustedIncome.title = cy: Adjusted income - Annual allowance from {0}
 adjustedIncome.heading1 = Incwm wedi’i addasu
 adjustedIncome.message1 = Mae eich incwm wedi’i addasu yn cynnwys pob cyfraniad pensiwn, gan gynnwys unrhyw gyfraniadau gan eich cyflogwr.
 adjustedIncome.message2 = Dysgwch ragor am incwm wedi’i addasu
@@ -1494,7 +1494,7 @@ netIncomeAbove100K.bullet10 = taliadau gros a wnaed at gynlluniau pensiwn – y
 netIncomeAbove100K.bullet11 = colledion masnachu, er enghraifft, rhyddhad colled masnach neu ryddhad colled eiddo
 netIncomeAbove100K.message5 = Os ydych wedi cyflwyno Ffurflen Dreth Hunanasesiad, fe welwch yr wybodaeth hon ar eich
 netIncomeAbove100K.link = SA-302
-netIncomeAbove100k.message6 = .
+netIncomeAbove100k.message6 = cy: document.
 netIncomeAbove100K.heading2 = A gawsoch incwm net o dros £100,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2016 i 5 Ebrill 2020?
 netIncomeAbove100K.checkYourAnswersLabel = A gawsoch incwm net o dros £100,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2016 i 5 Ebrill 2020?
 netIncomeAbove100K.error.required = Dewiswch ‘Iawn’ os cawsoch incwm net o dros £100,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2016 i 5 Ebrill 2020
@@ -1519,7 +1519,7 @@ netIncomeAbove190K.bullet10 = taliadau gros a wnaed at gynlluniau pensiwn – y
 netIncomeAbove190K.bullet11 = colledion masnachu, er enghraifft, rhyddhad colled masnach neu ryddhad colled eiddo
 netIncomeAbove190K.message5 = Os ydych wedi cyflwyno Ffurflen Dreth Hunanasesiad, fe welwch yr wybodaeth hon ar eich
 netIncomeAbove190K.link = SA-302
-netIncomeAbove190K.message6 = .
+netIncomeAbove190K.message6 = cy: document.
 netIncomeAbove190K.heading2 = A gawsoch incwm net o dros £190,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2020 i 5 Ebrill 2022?
 netIncomeAbove190K.checkYourAnswersLabel = A gawsoch incwm net o dros £190,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2020 i 5 Ebrill 2022?
 netIncomeAbove190K.error.required = Dewiswch ‘Iawn’ os cawsoch incwm net o dros £190,000 ar gyfer unrhyw flwyddyn dreth o 6 Ebrill 2020 i 5 Ebrill 2022
@@ -1583,7 +1583,7 @@ netIncomeAbove190KIn2023.bullet10 = taliadau a wnaed yn gros i gynlluniau pensiw
 netIncomeAbove190KIn2023.bullet11 = colledion masnachu, er enghraifft, rhyddhad colled masnach neu ryddhad colled eiddo
 netIncomeAbove190KIn2023.message5 = Os ydych wedi cyflwyno Ffurflen Dreth Hunanasesiad, fe welwch yr wybodaeth hon ar eich
 netIncomeAbove190KIn2023.link = SA-302
-netIncomeAbove190KIn2023.message6 = .
+netIncomeAbove190KIn2023.message6 = cy: document.
 netIncomeAbove190KIn2023.heading2 = cy: Did you have a net income of over £190,000 for any tax year from 6 April 2022 to 5 April 2023?
 netIncomeAbove190KIn2023.checkYourAnswersLabel = cy: Did you have a net income of over £190,000 for any tax year from 6 April 2022 to 5 April 2023?
 netIncomeAbove190KIn2023.error.required = cy: Select yes if you had a net income of over £190,000 in the period from 6 April 2022 to 5 April 2023
@@ -1769,7 +1769,7 @@ printReview.message1 = Gallwch weld rhagolwg llawn o’ch canlyniadau isod.
 printReview.message2 = cy: To keep a record of this, you can:
 printReview.message3 =  Ar sail eich symiau mewnbwn pensiwn diwygiedig rhwng 6 Ebrill 2015 a 5 Ebrill 2022 (y cyfnod pontio) a blwyddyn dreth 2022 i 2023, rydym wedi cyfrifo’r canlynol:
 printReview.message4 = cy: This service does not impact your decision on how to take your pension benefits at retirement. That choice is made directly with your pension provider and is not linked to this HMRC service.
-printReview.message5 = For tax years 2015 to 2016 through to 2018 to 2019, if your tax charge has decreased, your pension scheme may pay you compensation. If your tax charge has increased, you will not be required to pay the difference.
+printReview.message5 = cy: For tax years 2015 to 2016 through to 2018 to 2019, if your tax charge has decreased, your pension scheme may pay you compensation. If your tax charge has increased, you will not be required to pay the difference.
 printReview.message6 = Ar gyfer blynyddoedd treth 2019 i 2020 hyd at 2022 i 2023, os ydych wedi talu’r tâl treth gwreiddiol a’i fod wedi gostwng, bydd CThEF yn ad-dalu’r gwahaniaeth i chi. Os yw’ch cynllun pensiwn wedi talu’r tâl treth gwreiddiol a’i fod wedi gostwng, gall y cynllun hawlio’r gwahaniaeth gan CThEF.
 printReview.message6.1 = Os yw’ch tâl treth wedi cynyddu, gallwch naill ai dalu’r tâl eich hun neu ofyn i’ch pensiwn ei dalu drwy ddewis
 printReview.schemepays.link = ‘y cynllun sy’n talu’.