What NBN speed do you need for IPTV and 4K? (2026 guide)

Updated 30 October 2026 · 7 min read · StreamAussie team

Before you blame your IPTV service for buffering, check your NBN plan: the right NBN speed for IPTV is often the fix. The right NBN speed for IPTV depends on how many screens are watching at once and whether you watch in 4K. And since NBN Co's 2025 upgrades, many homes on fibre or cable can get far faster speeds for the same price, so it's worth checking what you're on.

01How much speed each stream needs

The "speed to allow" includes headroom for the jumps in bitrate during fast action, which is exactly when sport tends to stutter.

02NBN speed for IPTV: how many streams each tier handles

NBN Co lifted Home Fast to up to 500 Mbps and Superfast to 750 Mbps in 2025 for eligible fibre (FTTP) and cable (HFC) homes. Check with your provider whether your plan was upgraded. Source: NBN Co.

03Your connection type matters

• FTTP and HFC: can reach the advertised speeds, including the new higher tiers.
• FTTN and FTTC (copper to the home): your line may cap out below 100 Mbps, so a faster plan won't always help. Ask your provider for your line's maximum attainable speed.
• Fixed Wireless: generally fine for HD; evening speeds vary by tower.
• Sky Muster satellite: works, but watch your data allowance: an evening of HD can use 10 GB or more.

04Evening speeds are what count

Providers publish a "typical evening speed" for the busy hours of 7pm to 11pm, which is when most people watch TV. Compare plans on that number, not the maximum. If your streams only stutter at night, see our buffering fix guide.

05Work out your household's need

1. Count the screens that might stream at the same time on a busy night.
2. Multiply: 15 Mbps per HD screen, 25 Mbps per 4K screen.
3. Add 10–20 Mbps for phones, gaming and video calls.
4. Pick the tier whose typical evening speed is above that total.

Example: two HD TVs and one 4K TV = 15 + 15 + 25 + 15 headroom = 70 Mbps, so NBN 50 is too tight and Home Fast is the safe choice.

06Frequently asked questions

What NBN speed do I need for IPTV?

For one HD stream NBN 25 is enough. For two or three HD streams, or one 4K stream, choose NBN 50. For several 4K streams, choose Home Fast or faster.

Is NBN 25 enough for IPTV?

Yes, for one HD stream at a time with light browsing. It struggles with two streams or 4K, especially in the evening.

How much data does IPTV use?

About 3 GB per hour in HD and around 7–10 GB per hour in 4K.

Does FTTN support 4K IPTV?

Usually yes for one 4K stream, as long as your line reliably delivers 25 Mbps or more in the evening. Many FTTN lines can't reach the higher tiers, though.

What are the new NBN 500 and 750 tiers?

In 2025 NBN Co lifted Home Fast to up to 500 Mbps and Home Superfast to 750 Mbps for eligible fibre and cable connections.