Buying a .io Domain in 2026: What It Costs and What to Check

The .io extension is a common home for developer tools, APIs and SaaS products. It is also one of the pricier extensions to keep: the first year is often priced low, and the renewal you pay every year after that is what decides the real cost. This guide covers what .io is, what it costs over time, the checks to run on a name, and how to buy one.

What .io is

.io is the country-code domain of the British Indian Ocean Territory. It was delegated in 1997 and is managed by Internet Computer Bureau Limited, according to IANA's record. Anyone can register a .io name; there is no residency requirement.

In practice it is used far beyond the territory. Technical products took to it early, and today a .io address reads as "software" to most developers. Google agrees in its own way: its documentation on multi-regional sites lists .io among the country codes it treats as generic, like .com, so a .io site is not assumed to be aimed at one country. Google notes that the list may change.

What a .io domain costs

At one registrar's public list prices (Porkbun, September 27, 2026), a new .io name costs $28.12 for the first year and $51.80 a year to renew, 1.8 times the first-year price. Over time the renewal is what you mostly pay:

Each total is the first year plus the renewals that follow, at the same list prices. Other registrars charge different amounts, and prices change, so check the renewal at the registrar you will actually use. The .io renewal price page keeps this snapshot, and the domain renewal trap explains why first-year prices mislead.

What "cheap .io domain" usually means

A low price on a .io search result is almost always a first-year price. It can save you a little in year one, but every renewal after it is charged at the full rate. Before you choose a registrar for its first-year offer, multiply its renewal by the years you expect to keep the name. That number, not the headline price, is what the name will cost you.

When a name costs more than the list price

Registries can set aside names they consider more valuable and sell them above the standard price, sometimes for every renewal as well. If a registrar quotes a particular .io name far above the list price, or marks it as a higher tier, check what that exact name renews at before you pay. A name someone already owns is a different purchase again: its owner sets the price, and you still pay the yearly renewal on top.

Who .io suits

• Developer tools, APIs and infrastructure. The audience knows the extension and will type it correctly.
• B2B software sold mostly to technical buyers.
• Projects where the .com is out of reach and the name itself is strong.

It is a weaker fit for consumer brands. People outside tech often type .com out of habit, so some visitors and email meant for you will go to whoever holds the .com of the same word. If that is an active business in your field, treat it as a warning about the name. .com vs .io vs .ai for startups compares the three in more detail.

The status question

.io is tied to a territory whose status is in question. In May 2025 the UK and Mauritius signed a treaty that would hand sovereignty over the Chagos Archipelago, which makes up the British Indian Ocean Territory, to Mauritius; as of October 2026 it has not entered into force. What a change would mean for the extension has not been settled. If a country code is removed from the ISO 3166-1 list, IANA's retirement procedure removes the extension after five years by default, ten at most. Country-code extensions follow the policies their manager sets rather than the ICANN policies written for generic domains such as .com. For a name you plan to keep for many years, weigh that alongside the price.

Checks before you buy a .io name

• Registration status. Look the name up with our WHOIS lookup or at any registrar. If it is registered, the record shows when and where.
• The .com of the same word. Look up who holds it and what is on it.
• Trademarks. Search the registers in the markets you will sell in; domain name legal basics lists them and explains how a dispute works.
• The say-it-once test. Say the name to someone who has not seen it and ask them to type it. Short, real words pass; clever spellings usually do not.
• The renewal. Confirm the yearly price at your registrar, and set the name to renew automatically.

Naming patterns that work on .io

• A task plus a tool: two short words for what the product does and what it is, such as deploy + dock or docs + hub.
• A single technical word used in a new context. Short real words are scarce, so expect most to be registered already.
• A verb people say when they use the product. It reads well in a sentence: "just ship it."

Avoid hyphens, numbers and spellings that only work in writing. For a broader checklist, see what makes a good domain name.

Buying a .io name on NameSale

NameSale lists .io names ready to buy that are not registered yet, each at a fixed one-time price. After payment, NameSale registers the name and hands it over. The purchase includes the first year of registration, and each listing shows the yearly renewal at your own registrar as an estimate. Availability is re-checked before payment, the full total is shown before you pay, and if the name cannot be delivered you get a full refund.

Prices: Porkbun's public list prices in USD, fetched on September 27, 2026. One registrar's prices, not a market average. NameSale is not affiliated with Porkbun.