One important ratio that coops boards review is the buyer monthly debt-to-income ratio(DTI). I bring this up because I've been on the telephone all day clarifying this topic. A monthly debt-to-income ratio is a persons monthly housing expense (PITI [principle, interest, tax, and insurance], maintenance or common charges, and monthly credit expense [monthly payouts usually found on the buyer's credit report]). The bank may approve a mortgage for a buyer at a 45% debt-to-income. If the buyer were to come to the table of a coop board who requires a lower DTI, then the board will reject.
Example:
Lovely 2 bed coop. Elevator building. 24 hr doorman, gym, laundry. Great city view from floor to ceiling windows. Price 900K with 20% down. Maintenance $2000. Board requires no greater than 25% DTI.
The buyers are 2 recent law school grads with a total household income of 200K and current monthly credit expense of $1500. They have 180K for their down payment.
Bank approves 720K mortgage at 6.25% over 30 years with 180K down.
Let's do the math...
Principle+interest+maintenance=$6,433.16
Added credit monthly expense for a total of $7,933.16.
Divide $7,933.16/$16,667= 39%..But remember the coop board REQUIRES 25% or less.
The buyers will be rejected based on financing!
The solution would be to reduce debt and expenses which would require paying credit accounts and reducing their mortgage amount.
This is how monthly debt-to-income can affect a purchase.



