Are you looking for the best buy to let mortgages with the lowest rates payable? Need to calculate repayments on-line? Not sure how much you can borrow? These are all questions that you may well be asking yourself if you are looking for the best buy to let mortgages.

Finding the right buy to let mortgage is crucial to your success as a property investor. Unlike other forms of investment, a lot of the money you put into a buy-to-let property is likely to be borrowed. Over the last few years, the buy to let mortgage market has boomed, and borrowing money to invest in this way has become easier than ever. There are a number of different buy to let mortgage products available from fixed rates, discounted variable rates, discounted rates and so on. Different products may be suitable for different investment properties. Finding the cheapest buy to let mortgage may not always be the best option so there are a number of things to consider when deciding which buy to let mortgage is best. For example:

- A lender may offer a very cheap buy to let mortgage product which may carry a very attractive rate for a short while, but look at the small print. If you are then tied in for an extended amount of time at a much higher rate, then you need to calculate whether or not this is the best buy to let mortgage for you in terms of your cashflow as a landlord.

- A fixed rate with no extended tie would enable you to know exactly what your monthly repayments are so that you can calculate your profit/loss for that set fixed term.

- A discounted variable rate can be very attractive when the base rate is in the favour of the landlord and buy to let investors. Monthly repayments will fluctuate according to the decrease/increase in the base rate or LIBOR rate.

- Some of the best buy to let mortgage products may be discounted variable rate products that also offer the option of a droplock facility. A droplock facility on a buy to let mortgage means that for a fee, you can decide to switch to a fixed rate with that same lender.

How Do I Know How Much I can Borrow

This will depend on the lender and the buy to let mortgage products available as this can vary. Some lenders may set minimum salary levels whereas others may need verification that you are an experienced property investor. Others may not be concerned with the level of income providing that the rental income is sufficient. In general, most lenders will calculate the maximum borrowings based on either 125% or 130% cover. This 5% can make the difference as to whether you can borrow the full 85% or less.

The rent that a landlord receives generally has to be either 1.25% or 1.3% more than the interest payment of the mortgage. For example if you were looking to purchase a buy to let property at