Advice on overseas bank deposits income and tax paying in UK

Hi, I have got interest income on fixed bank deposits in Indian accounts. I need to pay tax on this income for previous years. I need few clarifications please 1. If the fixed deposits were in joint names ( Husband and wife ) would the interest needs to be declared for both of them depending on how much and if it is above threshold amount ? Please clarify threshold interest income ? 2. If interest income obtained from deposit accounts is less than 10 years duration, I understand we can claim 15% tax relief even if tax was not deducted in Indian bank accounts .? Could you please confirm and clarify. 3. Is there any guidance or help from HMRC on how we can do paper work or amending the previously submitted self assessments so as to include this overseas Indian bank account interest ? 4. How is exchange rate calculated ? Is it at the time we are making payment ? 5. Are there any other means or allowances so that we can make required tax payment over a period of time ? Many thanks for clarifying

Hi

1. if joint accounts then both parties need to declare 50/50  
2. yes you can.  
3. there is no limit as foreign interest needs to be declared and forms part of your savings allowance.  
4. please refer to HMRC currency exchange average rates - GOV.UK (Look up commodity codes, import duties, taxes and controls)  
5. you would need to wait until any charge is confirmed and then refer to Pay your Self Assessment tax bill

Thank you