Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Monthly money transfers from US to Puerto Rico
Puerto Rico: Last I checked, the Puerto Rico banking system wasn't materially different than working within the US - though some Continental US banks exclude US Territories like Guam and Puerto Rico or charge more when dealing with them. I'm not certain as to why. However, most banks don't see them any differently than a regular US bank.  Regarding Wire Transfers (WT): $35 for an ad-hoc WT within the US and Puerto Rico is for the most part average. Wires cost money for the convenience of quick clearing and guaranteed funds. If you have a business/commercial account where you are doing this regularly and paying a monthly fee for a WT service, $10 - $15 each may be expected. I had a business account with US Bank where I paid $15 a month for a WT transfer service and reoccurring template (always went to the same account - AMEX in this case) and the transfers were only $15 each. But, a WT as a general rule, especially when it's only a once a month thing from a personal account, will cost around $25 - $35 in the US and Puerto Rico. As others have said, you can simply mail a personal check just as you would in the US. Many people choose to use Money Orders for Puerto Rico as they can be cashed at the post office (I believe there is an amount limit though). ACH: If you want even easier, I would use ACH. Banks in Puerto Rico use this ACH (Automatic Clearing House) system as we do in the Continental US. It will take a little longer than WT, but as you said - this is fine. Not all US Banks offer free ACH, but a number of them do. Last I checked, Citibank and USAA where among them. Banks like, BAC charges a small fee. Much smaller than a WT! This post may be useful to you: What's the difference between wire transfer and ACH?