The real monthly cost of a mortgage in Puerto Rico
The figure a basic mortgage calculator gives you is half the payment. What the bank actually bills each month includes several other things, and in Puerto Rico some of them weigh more than people expect.
Principal and interest is only the start
Principal and interest is the part that pays down the loan, and it's the only piece that stays fixed on a fixed-rate mortgage. Everything else in your payment can change year to year.
Early on, most of that payment is interest and very little is principal. The ratio flips slowly, which is why the first years feel like the balance isn't moving. Looking at total interest over the whole loan, not just the monthly payment, changes the conversation about term length considerably.
What rides on top
Property tax is assessed by CRIM and varies by municipality and property. There's no single number that works island-wide: get yours from CRIM or from the seller's statement, not from an average.
Property insurance is the line that most surprises people coming from elsewhere. Here, wind and hurricane coverage — and the deductible that comes with it — change the cost substantially. Get a real quote before you commit to a payment.
If it's a condominium or a gated community, the maintenance fee is separate and isn't financed: it's a permanent monthly expense that has to go in the budget.
And if the down payment is below a certain percentage, mortgage insurance is likely to be added — which falls off later under some programs and never under others.
Escrow, and why your payment changes
The bank typically collects tax and insurance monthly and holds them in an escrow account to pay when they come due. You see one payment, but inside it there are several line items.
When the tax assessment or the premium goes up, the bank adjusts the escrow and your monthly payment rises even though your interest rate hasn't moved a basis point. It's the number one reason people say their fixed-rate mortgage “went up.”
Run two numbers before you sign
First: the full payment with everything in it. The mortgage calculator lets you enter property tax, insurance and HOA separately from principal and interest, precisely so you see the figure you'll actually be billed.
Second: total interest over the term. Compare the same loan at different terms and you'll see what the extra years cost. That's where you decide whether a more comfortable monthly payment is worth its price.
And budget closing costs and reserves separately from the down payment. Arriving at closing without that cushion derails more purchases than anything else. If you're still saving for the down payment, the savings calculator in goal mode tells you how much to set aside monthly to hit the date you picked.