Interest bearing loans & Transactions

Interest

Q: Is it in order to lend money to someone for example I say I will lend you R100 and you pay me back R150.

Mortgage plans

Q: I am planning to buy a properly in UK. I have saving but it is far away from the amount the property cost. So I have to take a loan from the bank. I also tried with Islamic bank but their requirements are too high for me I do not match their requirements. So all is left is to get a mortgage from a non Muslim bank.

My question is: Is it still ok if I take loan from the bank if I have a property in India? It is actually a shop,and my father also left me a part of his property share that is £15000,- worth both are rented and my dependant are is getting the rent. So is it wise to sell the property (shop worth £25000,-)India and get less loan here? It would be £ 20000-30000 less RIBA base loan. Is it haram to keep the property in India and not sell it and on top get loan here? Or sell all in India, invest in UK property and get rid of more loan here because it is based on RIBA. Should I sell the property in India and send my family on a monthly Basis money? Because I am capable to send them money even if I had to sell everything there. What is wise or what is the right way to do in Islam. Or shall I just sell the shop and keep one property for them to get the rent from? Please guide I am really confused!

Paying back more than the loaned amount

Q: My dad took the money from my uncle and said I will give you the profit as I have to invest it in my business. The profit was fixed either the business goes in profit or loss. Unfortunately there was a loss and my dad could not give back the money as it was agreed. Now I am earning and paying back the money loaned to my father by my uncle. I want to ask do I need to pay back the profit to my uncle as well or I just have to give him back the actual amount took by my father? (e.g my father took 5 lacs and the profit was 1 lac) Do I need to give back 6 lacs or only 5 lacs? Please help me out.

Hire purchase

Q: I live in muscat. I bought my car on hire purchase. The total price of tyre car is 8000 rials but on hire purchase its 8500 rials. So firstly is this halal?
Secondly. Last month I couldn't pay the car installment due to eid and ramadhaan so now they told me that I have to pay 5 rials to postpone that installment in the future so is this halal? The installment will be the same but I will have to pay 5 rials to delay this installment. Is this halal?

Secondly I bought a credit card and if I pay the money used by the card in 52 days then no interest will be charged but I have to pay a small amount
monthly that is for the card not for the money I use from the card so is this halal?

Being forced by the government to pay interest

Q: If a person works at an accounting office that deals with tax and due to no fault of his own the government reassesses the tax liability of a previous period and charges it say a year after with interest and penalty. Is it haram to pay that? What if the accountant has to submit the payment since he deals with the account, is he liable for the sin too? Since he is not involved with the deal, it is not his account and he is not the scribe for the deal nor did he witness the contract?

Forced to pay interest

Q: Is it haram to pay interest is one is forced to? For example if the government charges you a tax penalty and includes interest in it, is it haram
for you to pay it? What if you're writing a check on someone else's behalf, is it haram for you to write it?