TL;DR: These three terms get mixed up constantly, but they are fundamentally different things. An eVisa is a full visa — you need it to enter a country you are not visa-exempt for. An ETA (Electronic Travel Authorization) is a lightweight pre-screening check for travelers who are visa-exempt. A Digital Arrival Card is neither a visa nor an authorization — it's simply a digital replacement for the old paper form you used to fill out on the airplane.
At a Glance
| Document | What It Replaces | Who Needs It | When to Get It |
|---|---|---|---|
| eVisa | Traditional visa sticker in passport | Travelers NOT visa-exempt for that country | Apply weeks before travel |
| ETA | Visa-exemption pre-screening | Visa-exempt travelers only | Apply days before travel |
| Digital Arrival Card | Paper arrival/customs form on plane | Everyone entering that country | Within 24–72 hrs of arrival |
1. What Is an eVisa?
An eVisa (Electronic Visa) is an official entry visa issued and stored electronically, linked to your passport number. It grants you permission to enter a country you would not otherwise be allowed to enter without a visa.
Key characteristics:
- It is a real visa — without it, you will be denied boarding or turned away at the border.
- Processing times range from a few hours to several weeks depending on the country.
- It costs money (a government visa fee). Common examples: Vietnam eVisa (~USD 25), India e-Visa (~USD 25–80), Cambodia e-Visa (~USD 30).
- The eVisa does not appear as a sticker in your passport — it is linked to your passport number in the immigration database.
Real-world examples:
- Vietnam eVisa (90-day single or multiple entry)
- India e-Visa (tourist, business, or medical categories)
- Cambodia e-Visa (30-day tourist visa)
Always apply for your eVisa through the official government portal only. Many third-party sites charge extra "service fees" on top of the official government fee. The total you pay should only be the government-published fee amount.
2. What Is an ETA?
An ETA (Electronic Travel Authorization) is a lightweight pre-travel security screening requirement for travelers who are already visa-exempt for a destination.
Think of it this way: you do not need a visa to enter the country, but the government still wants to run a quick background check before you board the plane. The ETA is that check. It is not a visa — it is an authorization to travel on your existing visa-free privilege.
Key characteristics:
- You are already visa-exempt without it, but airlines are required to verify your ETA before allowing you to board.
- Applications are usually approved within minutes to a few hours.
- Costs a small fee (typically USD 10–20). Examples: UK ETA (GBP 10), Australia ETA (
AUD 20), upcoming EU ETIAS (€7–20). - Valid for multiple trips, usually for 1–3 years or until your passport expires.
- If you board without one, you may be fined or denied boarding by the airline.
Real-world examples:
- UK ETA — mandatory for most visa-exempt travelers since February 2026
- Australia ETA — required for citizens of select countries (e.g., US, UK, Canada)
- EU ETIAS — expected to be mandatory from late 2026 / early 2027 for visa-exempt visitors to the Schengen Area
The EU's ETIAS has not launched yet. Any website currently offering to "process your ETIAS" is a scam. Apply only at the official travel-europe.europa.eu/etias portal when it opens.
3. What Is a Digital Arrival Card?
A Digital Arrival Card (also called an electronic arrival card, e-arrival card, or digital customs declaration) is not a visa or authorization at all. It is simply a government-mandated health, customs, and immigration information form — the same form that was previously handed to you on the airplane and collected at passport control.
Countries have been digitizing these paper forms since 2022, requiring travelers to submit the information online before arriving rather than filling in a form with a pencil on the plane.
Key characteristics:
- Every traveler entering that country must complete it, regardless of nationality or visa type.
- It asks for basic personal information, accommodation details, travel history, and sometimes customs items being brought in.
- It is completely free in every country that uses it.
- Usually must be completed within 24–72 hours before arrival.
- Failure to complete it before arriving does not stop you from entering — but it may cause delays at the immigration counter.
Real-world examples:
- Thailand TDAC — must be completed within 72 hours before arrival
- Singapore SGAC (SG Arrival Card) — must be completed within 3 days before arrival
- Malaysia MDAC — must be completed within 3 days before arrival
- Cambodia e-Arrival (CeA) — must be completed before departure
- Indonesia EAD (Electronic Arrival Declaration) — must be completed before landing
- Vietnam Health Declaration — new requirement from July 1, 2026, under Decree 165/2026/ND-CP
Since digital arrival cards require your passport data (full name as on passport, date of birth, passport number, expiry date), filling them in manually is error-prone. Use the eVisaFlow Chrome Extension to auto-read your passport and fill in arrival card fields without typos.
Common Mistakes and How to Avoid Them
| Mistake | Why It Happens | How to Avoid |
|---|---|---|
| Applying for an eVisa when you are already visa-exempt | Confused by third-party sites | Check the destination country's official immigration website first |
| Skipping the ETA because "I don't need a visa" | Not knowing ETAs exist | Always check both visa requirements AND ETA requirements for your passport |
| Paying for a digital arrival card | Scam websites charging for free forms | Arrival cards are always free — use official government links only |
| Filling in the arrival card with wrong name order | Manual typos | Use eVisaFlow to auto-fill from passport scan |
Quick Decision Guide
Use this checklist before your next international trip:
- Am I visa-exempt for my destination?
- No → Apply for an eVisa on the official government site.
- Yes → Continue to step 2.
- Does my destination require an ETA for visa-exempt travelers?
- Yes → Apply for an ETA well before you fly (at least 3 days ahead).
- No → Continue to step 3.
- Does my destination require a digital arrival card?
- Yes → Complete it online within the required window (usually 24–72 hours before arrival). It is free.
- No → You are good to go!
References
- Vietnam Immigration Department (eVisa): evisa.gov.vn
- UK ETA (Home Office): www.gov.uk/apply-for-an-eta
- EU ETIAS (Official Info): travel-europe.europa.eu/etias
- Thailand TDAC: tdac.immigration.go.th
- Singapore SGAC: eservices.ica.gov.sg/sgarrivalcard
