What is the difference between combined loan to value and total loan to value?

Although I have found that these terms are used and interpreted differently based upon institution, generally, CLTV is based on loans held within the same institution (e.g., 1st & 2nd combo with same lender). TLTV refers to the total loan to value based upon all encumbrances, regardless of lender.

Hope this helps.

My understanding is and if i'm wrong someone will correct me

I believe it has to do with the difference between the loan amount or credit limit extended, (CLTV) and the actual balances, (TLTV)

i.e. same loan

CLTV:
A loan risk indicator that is expressed as the ratio of the amount of money borrowed compared to the appraised value of the property securing the loan where more than one loan (lien) exist on the property. I.e. 1st mortgage original balance=90,000, 2nd mortgage loan amount or credit limit=40,000=Total of 130,000. The value of the property=250,000. CLTV=130,000/250,000=52% CLTV

TLTV:
A loan risk indicator that is expressed as the ratio of the amount of money borrowed compared to the appraised value of the property securing the loan where more than one loan (lien) exist on the property. I.e. 1st mortgage balance=70,000, 2nd mortgage balance=20,000=Total of 90,000. The value of the property=250,000. TLTV=90,000/250,000=36%

The CLTV is the aggregate principal balance(s) of all mortgages on a property divided by its appraised value.

I agree with nbk examples except we would use the current principal balance of the 1st mortgage for both calculations. If the 2nd is not a HELOC then the CLTV and the TLTV would be the same value.

CLTV = 1st mortgage balance + 2nd credit limit / appraisal

TLTV = 1st mortgage balance + 2nd current balance / appraisal

Thanks jlroberts, you are correct, i should have said balance of 1st mortgage not original balance in the 1st example.