While the process is supposed to be standard according to Peruvian law, it is interpreted differently depending on which AFP you are working with.
Integra is the worse and I have no hesitation to say that they outright lie to try and stop you from taking it out. The others are more friendly.
I used to do this as part of my job.
The process is more or less as follows:
You have to surrender your carnet and take the notice of the from reinic, get the notification from Sunat that you do not owe any taxes, get a letter from your employer that you are no longer working in Peru.
You have to show at least 2 years of deposis in a qualifying pension of some sort in another country. Depending on the AFP, who qualifies varies a little.
you have to fill out the application of the AFP
You have to have a letter from the bank you are sending your money to to confirm the account or pension plan if you are transfering it to a pension.
Everything has to be translated, legalized and notarized.
If you do it from abroad, every time there is a problem, you have to start over again on any of the documents...most problematic when working with Integra bedcuase they reject letters or translations for things like a missing comma or period because you have to keep returning to the Peruvian consulate to get thngs legalized.
It is always easier to travel back as a tourist or have someone you trust locally be your legal representative. Getting things translated, legalized and notarized here is cheaper.
The area that seems to be the biggest hiccup is what is a qualifying pension and qualifying banks to transfer the money. The other problem is taxes in the exterior.
For example, many pensions are beneficiary accounts. Generally that qualifies as a pension, but the government often will not let you transfer the funds there because technically the account is not in your name, it is in the name of the financial institution wiht you listed as beneficiary. In that case, you generally just transfer the money into your personal account (but not a joint, the name has to be EXACTLY, LETTER FOR LETTEr, the same as the pension.
I have seen the process take as little as 2 weeks and I have seen it take as much as 6 months.
Most offer form samples of the types of letters they want and that can be another problem becuse most banks have their standard form letters for confirming accounts and sometimes they are not exactly the same.
Now, of course as you know living in Peru, it is sort of haphazard what rules are followed and what ones are not. One person might tell you they accepted social security in the usa, for example, and the next person was not accepted. One person had their money transferred into their 401K account, and the next was rejected.
Oh, and taxes.
depending on where you transfer the money and since most pension accounts do not qualify for direct transfer, you can be taxed in many jurisdictions, anywhere between 10 and 40 percent. You would need to contact a local tax specialist for that.