When you take a housing loan and let's assume the tenure is 35 years, this 35 years is already including your principle amount (600k) + interest (35 years worth of interest).

Should you decide to put 600k back into the loan for example, you should complete your loan within 17.5 years by maintaining the same loan installment every month.

However, you should not try to put the same amount as your loan outstanding otherwise the system will take it that you would like to settle off your loan so it's advisable to keep within 90 - 95% of the loan outstanding.

It's a little mixed of both.

Yeap it's to maintain the flexibility that your money is still on the loan account but if you choose to withdraw that then you will incur the housing loan interest

If you got tremendous amount of surplus then why not settle off the housing loan?

Cant calculate that way because housing loan is compounded over a long period of time which is why it's advisable to pay more to incur less interest overtime and finish off your housing loan.

Best rate is in range of 4.22 - 4.35%, subject to your personal scoring. Some banks like PBB, MBB and HLB will offer a fixed rate for first 12 months or 24 months. Grab it while promotion lasts. 
On financial planning, it depends whether you are intend to do prepayment or capital repayment.

You may download the financial calculator apps on Google play or Apps Store, choose loan calculator. There is an item showing extra monthly repayment, just insert accordingly and you will see total interests savings should you put extra money every month to your loan repayment.

However, for a lump sum calculation you can always find out mortgage formula on Internet to calculate. Best way is break down calculation in Microsoft excel and you will see the amortization schedule according to your loan repayment.

Formula as below

M = P [ i(1 + i)n ] / [ (1 + i)n - 1]

M = Monthly repayment
P = Principal
i = Monthly interest
n = number of months

There is no different on these 2. Especially nowadays if it's a flexi loan then there is only prepayment you can make.

The amount you save is based on the (Amount you put into prepayment x The bank interest) / 12 mths

Sorry not sure what you're trying to ask.

Well, usually bank may offer up to 90% margin if is refinance first or second property.

It depends whether if you have any cash out portion involve.

Redemption on property. Let's say from bank A to new bank, bank will have their calculation towards the monthly commitment.

And also subject to what type of package customize to client, conventional vs Islamic, first party loan or third party (not all bank comply 3rd party application, subject to their preference as well)

Not to mention the panel valuation. So few factors to determine whether the applicant able to get best package.

That's right, cash out portion will calculate base on 10 years DSR. Once the amount has been approved, bank will prolong the tenure up to 35 years repayment/70 years old (which ever come first) at your wish.

Refinance will take longer time as new bank will need to execute legal documentation in order to redeem collateral from bank A. Hence, standard procedure will take 3 months at least given property tenure is freehold, leasehold will take much longer as they need to compile document and send to high court for judge to sign consent form. That will probably take 3-6 months, or even more if your property is under leasehold.

Top up loan procedure is much faster as the collateral (title) was charged under existing bank.

Overall, still depending your DSR and valuation. Refinance will impose more costs as the legal fee charges base on loan amount itself whilst legal fee of top up loan base on differences sum.

Let me know if you wish to know more.

Please find the general guideline of full flexi vs semi flexi.
Full Flexi:
1) Loan Account will be linked to Current Account/Saving Account with cheque book (optional).
2) Interest is based on current outstanding minus any amount payable to the loan. (E.g : Current O/S - credited amount x Effective Interest Rate/100% divide number of days/365 days) Some bank practice 360 days instead.
3) Account opening fees at RM 200 + 6% GST.
4) Account maintenance fees at RM 10 +6% GST.
5) Withdrawal/Deposit of money can be done through over the counter, cheque, ATM or online banking.

Semi Flexi :
1) Bank will request customer to setup a Saving Account link to Loan Account through Standing Instruction (SI).
2) Prepayment or capital payment can be done.
3) Prepayment, placing future repayment to Loan Account and it has to be multiple of your monthly repayment. This will not revoke interests saving on Loan Account.
4) Capital repayment, placing extra payment to Loan Account to reduce principal. Some bank will require you walk in branch to fill up service form.
5) Withdrawal/Deposit of money can be done through over the counter or cheque.

If you simulate a housing loan amortization, the conventional simulation starts from the higher interests repayment and lower capital repayment. From time to time, the interests payment will be reduced whilst extra payment goes to principal.

MBB full flexi has capped principal payment at certain amount hence the monthly repayment will change from time to time.

MBB semi flexi withdrawl fee is RM 25 +6% GST/withdrawal and you may pay extra money to your loan account via online banking without notifying bank.

need to reach a maybank banker for new housing loan.. anybody has a good referrals?

Previously some forumers said we can write in to request for lowering the effective rates, but chance is thin... I tried but they rejected...

My queries as below if anyone can help:

1. If refinance, i guess need spend another 10k for just the stamp duty and legal fees?? I heard some banks got promo to absorb them, but is it with higher loan rate?

2. With the drop in OPR, bank will adjust upward the spread to match the original effective rates?? Old loan will drop in eff. rate, but new loan no changes??

3. Market rate for loan of 800k is about 4.2% now for 35years?

Any insider news on the new loan limit for third property priced above 600k for each bank? 90%, 85%, 80%,..

then you got the trasnparent news?

Too bad, the early bird catch the worms.

Curious on Bank B, is it really fixed loan rate? or it is just normal term loan? may I know the bank name? kindly pm, thanks.