## RADEX Appointment Tips: How to Actually Get a Slot at Migraciones in 2026
If you've ever tried to book an appointment at the Direccion Nacional de Migraciones in Argentina, you know the special kind of frustration I'm talking about. I moved to Buenos Aires in 2019, and back then the old "Turnos" system on the Migraciones website was already a nightmare. Fast forward to today, and we have RADEX — the Registro de Admision Digital para Extranjeros — which is supposed to make everything smoother. Spoiler: it's better in some ways, worse in others. Let me walk you through everything I've learned over the years so you can actually get an appointment without wanting to throw your laptop out the window.
The Old System vs. RADEX: What Changed
When I first arrived, the booking system was hosted on the main Migraciones website under a "Turnos" section. You'd log in, pick a date, and pray. The interface looked like it was built in 2005, and it would crash constantly when new appointment slots dropped. Everyone knew to refresh at midnight or 6 AM, and the slots would vanish in seconds. It was like trying to buy concert tickets for Taylor Swift, except instead of a concert, you got the privilege of sitting in a government office for four hours.
Around 2023, Migraciones started rolling out RADEX as a replacement. The idea was to digitize more of the process — you upload documents ahead of time, fill out forms online, and then book your in-person appointment through the new platform. In theory, this means less time at the office and fewer rejected appointments because of missing paperwork. In practice, the system still has its quirks.
What RADEX Actually Does
- **Digital pre-registration**: You create an account, enter your personal data, and upload scanned copies of your documents before booking
- **Appointment booking**: Once your pre-registration is approved (or sometimes before), you can search for available slots at different Migraciones offices
- **Status tracking**: You can check the status of your tramite online instead of calling the 0800 number and waiting forever
- **Document validation**: Officers can review your uploads before your appointment, which sometimes means fewer surprises on the day
How to Book an Appointment on RADEX
Here's the step-by-step process as of mid-2025:
1. **Go to the RADEX portal** — access it through the official Migraciones website (migraciones.gov.ar). Do not Google "RADEX Argentina" and click random links. There are scam sites that look almost identical.
2. **Create your account** using your passport number, email, and a phone number. You'll get a verification code via email. Check your spam folder — it almost always ends up there.
3. **Complete your personal data profile**. This includes your full name (exactly as it appears on your passport), nationality, date of birth, current address in Argentina, and the type of residency you're applying for or renewing.
4. **Upload your documents**. Scan everything in PDF format, under 2MB per file. The system is picky about file sizes. I've had uploads rejected because the file was 2.1MB. Use a PDF compressor if needed.
5. **Search for available appointments**. Select the Migraciones office you want (Sede Central on Av. Antartida Argentina 1355 in Retiro is the main one in Buenos Aires), pick a date range, and see what's available.
6. **Confirm your slot**. You'll get a confirmation email with a QR code. Screenshot it, print it, save it everywhere. If you lose this, you'll have a bad time at the door.
Best Times to Check for Appointments
This is where experience really pays off. After years of doing this — both for myself and helping friends — here's what I've found works:
- **Check between 6:00 AM and 7:30 AM Buenos Aires time (ART)**. New slots tend to drop early in the morning. I've had the best luck around 6:15 AM on weekdays.
- **Monday mornings are prime time**. The system often loads new weekly availability on Sunday night or early Monday.
- **Mid-month tends to have more availability** than the first week of the month, when everyone is trying to book.
- **Try again at 12:00 PM - 1:00 PM**. I've noticed cancellation slots appear around lunchtime, probably because people cancel their morning appointments.
- **Last week of the month** is when desperate people cancel, so keep checking.
Common Errors and How to Fix Them
I've hit every possible error on this platform. Here are the ones that come up most:
"No hay turnos disponibles"
This just means no slots are showing up right now. It does NOT mean there are no slots for the whole month. Keep refreshing. Try different date ranges. Try a different office — the one in Dock Sud or the newer location in San Martin sometimes has availability when the Retiro office is full.
"Error de validacion" on Document Upload
Your file is either too large, in the wrong format (they want PDF, not JPG for most documents), or your session timed out. Log out completely, clear your cookies, log back in, and try again. I've also found that **Firefox handles the upload better than Chrome** on this particular site. Safari is a coin flip.
"Su tramite no permite reservar turno"
This usually means your pre-registration hasn't been approved yet, or there's a conflict with an existing tramite in the system. If you had a previous residency application that was denied or abandoned, it can block new bookings. You may need to go in person to Sede Central with your passport and ask them to clear the old record. Bring a printed copy of the error screen.
The Page Just Won't Load
The RADEX servers get hammered, especially in the morning. A few tricks:
- **Try a different browser**. Seriously, this works more often than it should. I keep Chrome, Firefox, and Brave installed specifically for government websites.
- **Disable browser extensions**. Ad blockers and privacy extensions can interfere with the site's scripts.
- **Use a wired connection** if possible. The upload process especially hates flaky Wi-Fi.
- **Try from your phone** as a last resort. The mobile version is clunky but sometimes loads when the desktop version won't.
What to Bring to Your Appointment
Even though RADEX is supposed to digitize everything, **bring physical copies of every single document**. I cannot stress this enough. The officers at the window will sometimes ask for originals and copies of things you already uploaded. Here's my standard checklist:
- **Passport** (original + copy of the photo page and entry stamp)
- **Appointment confirmation** (printed, with QR code)
- **Proof of address** (utility bill, bank statement, or rental contract — within the last 3 months)
- **CUIT/CUIL certificate** if you have one
- **Antecedentes penales** (background check from your home country, apostilled and translated)
- **Two 4x4 cm photos** (white background, taken at any "Foto Carnet" shop)
- **Payment receipt** for the tramite fee (you pay online through the Migraciones portal or at Banco Nacion)
- **A folder** to keep everything organized. This sounds trivial, but when you're shuffling papers at window 14 with a line behind you, you'll be glad you brought one.
Pro Tips from Six Years of Experience
Tip 1: Take Screenshots of Everything
Every confirmation page, every receipt, every status update. The system has been known to lose records, and having a screenshot with a timestamp has saved me twice.
Tip 2: Go to Sede Central Early
If your appointment is at 9:00 AM, be there at 8:15. The security line outside can take 20-30 minutes, especially in winter when everyone is bundled up and moving slowly. The building is right next to Buquebus terminal in Retiro — you can't miss the big modern glass building.
Tip 3: Be Patient and Polite
The officers are dealing with hundreds of people a day in multiple languages. A simple "buen dia" and a smile go a long way. I've seen people get sent to the back of the line for being rude. Don't be that person.
Tip 4: Have a Spanish-Speaking Friend on Standby
Even if you speak decent Spanish, immigration terminology is its own beast. Having someone you can call or text when the officer uses a word you don't know is invaluable.
Tip 5: Check the Migraciones Social Media
Their official accounts sometimes announce system outages, new slot releases, or changes to requirements before the website is updated. Follow them on the usual platforms.
Final Thoughts
RADEX isn't perfect, but it's a genuine improvement over the old Turnos system. The key is persistence and preparation — treat the booking process like a part-time job for a few days, and you'll get your slot. And once you're sitting in that waiting room at Sede Central, you'll feel a weird sense of accomplishment. Welcome to the club.