Cambodia Visa Extension Agents in Phnom Penh: 2026 Aussie Guide (Vetted List)

The Phnom Penh agent market in 2026 — opaque but navigable

Phnom Penh's immigration agent market is one of those parts of the Cambodia long-stay system that nobody explains cleanly to Aussies before they arrive. No government directory of approved agents, no league table, no public price register — just a sprawling network of small offices ranging from legitimate paper-pushers running clean operations for a decade to opportunistic two-person setups that opened last year. The information is out there if you know where to look, but it is not laid out for you.

The reason this matters: under the current Cambodian eVisa system, the Business eVisa (E-Class) is the only Cambodia visa Aussies can extend in-country, and every extension routes through one of these agents. The General Department of Immigration does not process Business eVisa extensions over the counter for individual Australian applicants. You cannot walk into Immigration HQ on Pochentong Boulevard and lodge your own paperwork. The agent is the gatekeeper, and the agent you pick is the single biggest variable in whether your extension lands smoothly or turns into a multi-week ordeal of unreturned WhatsApp messages.

This is the guide for Australians picking a Phnom Penh extension agent in 2026 — the five vetting criteria, the district-by-district breakdown, realistic fee ranges in USD, and the red flags to walk away from. If you have not yet sorted the underlying paperwork, the Cambodia Business visa for Australians anchor walks through the upfront application, and the Cambodia Business visa extensions guide covers the broader extension mechanics.

The five vetting criteria for a Phnom Penh extension agent

After six years of running Aussie cases through Phnom Penh agents, the same five signals separate the agents you'd happily recommend from the ones that quietly cost clients money or time. They are not subjective preferences — each one maps to a specific failure mode we have seen on actual extension cases. Use all five together; any one of them missing is a yellow flag, two missing is a hard no.

Boeung Keng Kang district agents

Boeung Keng Kang — BKK1, BKK2, and BKK3 — is the Phnom Penh expat heartland and the district where most English-speaking immigration agents cluster. Walk down Street 51 or Street 63 in BKK1 and you will pass half a dozen small storefronts offering visa extension services within a couple of blocks. The agents here have largely figured out the Aussie, British, French, and American customer base and most run their pricing in USD with English-language paperwork as default. The trade-off: BKK1 rents are higher than the rest of the city, and that flows through into agent fees. Expect to pay the upper end of the market ranges below.

Daun Penh district agents

Daun Penh sits closer to the Immigration HQ on Pochentong Boulevard and historically prices below BKK1. The same paperwork, the same Immigration counter, the same 7–14 business day turnaround — but with lower overheads passed through as lower fees. The honest caveat is English service varies more here. Some Daun Penh agents are bilingual Khmer-English and run a smooth Aussie-friendly process; others handle most clients in Khmer or Chinese and have a single English-speaking staff member who may or may not be in the office on the day you walk in. If you are comfortable using a translator app and your case is routine paperwork, the savings are real. Toul Kork, north of the railway line, is the third option — newer agents opening in the last few years, mid-range pricing, mostly Khmer-Chinese client base with a small but growing Aussie footprint.

The agent workflow from your perspective

Once you have picked an agent, the actual workflow on your end is short, physical, and front-loaded into a single visit. The agent does the back-end paperwork lodgement with Immigration over the following 7–14 business days, but everything you need to do happens in one walk-in. Knowing what that looks like in advance saves Aussies from being caught off-guard mid-transaction.

Day 1 (the walk-in). Arrive at the agent's office during business hours — most run 9am to 5pm with a midday closure between roughly 12 and 2. Bring your physical passport, a recent passport-style photo (4cm x 6cm is the Cambodian Immigration standard), your current Phnom Penh accommodation address, and USD cash for the full agent fee. The agent photocopies the photo page and entry stamp, takes the photograph, and walks you through a one-page application form. You hand over passport plus cash. The agent hands over a written receipt with the date, extension length, multi-entry status, and agreed pickup date.

Days 2–13 (the wait). Your passport stays at the agent's office while the application is lodged in batch and Immigration approves the new extension stamp. You do not need to be present for any of this, and you do not need your passport for most day-to-day Phnom Penh life — apartment leases use the copy you signed earlier, bars and restaurants don't ID, and as long as you are not flying out, the absence is genuinely fine. Keep your agent receipt with you in case of any police interaction.

Day 7–14 (the pickup). The agent messages you — usually WhatsApp or Telegram — when your passport is back with the stamp inside. You walk in, the agent hands it over, and you sit down for two minutes to verify the stamp shows the correct length, start date, and single or multi-entry permission. Flag any errors immediately at the office; a clerical fix at this stage is straightforward, discovering it at Phnom Penh airport three months later is not.

Multi-entry vs single-entry agent quotes

Every Phnom Penh extension agent worth using offers both single-entry and multi-entry extensions across all four extension lengths. The multi-entry premium sits at roughly $30–50 USD on top of the base extension fee, and this is one of the prices that varies most agent-to-agent. The premium is not a markup the agent invents — it reflects the additional paperwork lodged with Immigration to attach multi-entry permission to the extension stamp — but the agent's margin on it does vary, and BKK1 agents typically charge the upper end of the range.

Worked numbers in USD. A 6-month single-entry extension lands at $180–240 USD. The same 6-month extension with multi-entry adds the premium, so you end up at $210–290 USD all-in. A 12-month single-entry sits at $300–400 USD; with multi-entry, $330–450 USD. The premium does not scale with the extension length — it is a flat addition regardless of whether you are taking a 1-month or a 12-month extension. That makes the multi-entry premium dramatically better value on longer extensions, where it sits below 15% of the total cost. On a 1-month extension, the same $30–50 USD premium is closer to 40–60% of the base fee, and that's the one extension length where you should really only pay the premium if you are certain you will leave Cambodia at least once during the month.

Which agents offer it? Effectively all of them in BKK1 and most in Daun Penh and Toul Kork. The agents who do not offer multi-entry are typically the same agents missing one of the five vetting criteria above — they are running a thin product line at speed rather than handling Aussie cases properly. If your shortlist agent says they cannot do multi-entry, take that as a signal and pick a different one. The Cambodia multi-entry visa for Australians guide covers the full decision tree on when multi-entry is worth the premium versus when a fresh Tourist eVisa per re-entry is cleaner.

Red flags and safety tips when handing over your passport

Handing your passport to a stranger and walking out is the part of this process that most makes Aussies pause. With the five vetting criteria applied and a clean walk-in, the actual risk on a Phnom Penh extension is genuinely low — passports get held by reputable agents thousands of times a year and come back fine. The bad news: when it goes wrong, it goes wrong slowly and quietly, and the patterns are predictable.

Passport handling rules. Always hand over the passport in person, at the agent's physical office, during business hours. Never courier it. Never hand it to a runner who comes to your apartment or hotel — even if they have the agent's branded ID. If an agent insists on collecting from you, walk away. The agents we keep on our curated shortlist all run this rule by default.

Receipts in English. Any agent serving Aussie clients should be able to write your receipt in English with no friction — name, passport number, extension length, single or multi-entry status, agreed pickup date, and amount paid in USD. Handwritten or printed is fine; a WhatsApp confirmation message on its own is not. The receipt is your proof of transaction if Immigration questions the paperwork or you need to escalate.

What to do if your agent goes silent mid-extension. The realistic playbook: first, WhatsApp them daily for three business days with calm, factual check-ins. Second, walk into the office in person — Cambodian small businesses respond differently to a face than to a message. Third, if the office is closed or empty, that is the point at which you escalate. The General Department of Immigration on Pochentong Boulevard handles agent disputes for foreign nationals; bring your written receipt, your visa application reference, and a copy of your passport's photo page. We can also support remotely on these cases through our agent-network desk — the receipt and the agent name are usually enough for us to chase the lodgement directly. The Smartraveller Cambodia page is the right first reference for the broader DFAT framing on this kind of in-country administrative issue.

The curated shortlist (and how to request it)

We maintain a short, vetted list of Phnom Penh immigration agents who routinely process Aussie Business eVisa extensions cleanly — typically four to six agents across BKK1, Daun Penh, and Toul Kork, updated quarterly. Agents that drift on pricing or turnaround come off the list; new agents with a clean track record of three or more Aussie cases come on.

Why not publish it openly. A sudden flood of inbound enquiry from a single source would overwhelm the smaller offices and damage the quality we are recommending them for. The agent–client relationship also benefits from a warm introduction — we can pre-flight your case with the agent ahead of your walk-in, which is the kind of small operational lever that turns a clean 9-business-day extension into the default instead of a 14-day one.

How to request the current list. Email our support desk with your trip dates, your target extension length (1, 3, 6, or 12 months), and whether you need single or multi-entry. We will reply within one business day with the current shortlist and a short note on which agent we would suggest given your specific case. The list comes with a heads-up on each agent's typical fee, English-language strength, and any recent quirks. Aussie expat communities also post on The Phnom Penh Post and KhmerTimes classifieds and on Facebook groups — those threads are worth a read for context, but our curated list filters out the noise. The how to apply for a Cambodia eVisa from Australia walkthrough covers the upfront application if you have not yet lodged the underlying visa.

Pulling it together for your 2026 Phnom Penh extension

Short version for Aussies: every Business eVisa extension routes through a Phnom Penh agent, the five vetting criteria do most of the filtering work, BKK1 is the English-speaking premium district while Daun Penh and Toul Kork sit at mid-range, fees run $50–80 USD for 1 month up to $300–400 USD for 12 months, multi-entry adds $30–50 USD, and we maintain a curated shortlist available on request. If you have not yet booked the underlying visa, the Cambodia Business eVisa application is the place to start.

For the wider picture, the Australia country pillar covers permanent residents, dual citizens, and the broader eligibility edge cases. The Cambodia digital nomad visa guide for Australians is relevant if you are planning a multi-month base in Phnom Penh, and the Cambodia eVisa vs Visa on Arrival comparison is worth a quick read for context on how the entry side of the system works.

Next steps and related reading for Australians: apply for your Cambodia eVisa when you are ready to lodge, bookmark our Cambodia visa hub for Australian citizens as the single canonical reference, skim the FAQ on Cambodia visa extending stay for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide.