How to split the broadband bill with flatmates: a fair UK guide

Split four ways, a fast full-fibre line can cost from around £6 each a month. That makes broadband one of the cheaper shared bills in a house, but it is also the one that trips people up, because only one name goes on the contract and that person carries the whole thing.

Get the account holder and the collection method right at the start and it runs itself. Get them wrong and you spend the tenancy chasing people, or worse, picking up their unpaid share.

Who should hold the broadband account

This is the first and most important decision, and it catches more people out than anything else. When one housemate signs up, that person becomes the account holder and is legally responsible for the entire bill, not just their share. If the others don't pay their part, the provider pursues the named person, and any missed payments land on that person's credit record, not the household's.

So choose carefully. The fairest approach is for the person staying longest, or the one most organised with money, to take it on, with a clear agreement that everyone else pays their share each month.

Only the account holder is credit-checked at sign-up. That can actually help a share where not everyone has a strong UK credit history, because one reliable name carries the application.

Avoid a joint bank account for bills unless you're moving in with a partner you intend to share finances with long term. Everyone on a joint account can be affected if one person misses a payment, and everyone has access to the money, so it can be added or withdrawn at any time. For a houseshare of friends, that is more risk than it's worth.

Equal split or by usage?

For broadband, split equally. It is the simplest and most transparent method, and it's fair in a way that gas and electricity often aren't.

The reason is that broadband is a flat monthly cost. Unlike energy, where one person's long baths push the bill up, a fibre line costs the same whether one person uses it or four. The capacity is shared and the price doesn't move, so dividing by headcount is genuinely even.

The exception is if one housemate uses far more than everyone else, for example working from home all day on video calls while the others are out. In that case you can weight their share up a little. But for most houses, an equal split by the number of tenants is the right call, and it avoids the arguments that usage-based splitting invites.

How much broadband costs per person

Broadband is now cheap to share because full fibre is widely available. According to Ofcom (January 2026), 82% of UK premises can get full fibre, so most shared houses can split a fast, reliable line.

A full-fibre plan divided four ways turns premium speed into pocket-money cost per person. As a worked example, a £27 monthly plan split between four housemates comes to about £6.75 each per month.

Always confirm the live price at checkout, because prices change and usually rise each April. If money is tight, anyone in the house on Universal Credit or certain other benefits may qualify for a social tariff, which can bring a fast connection down to around £15 to £20 a month before splitting.

On speed, what matters is concurrency: not how many people live there, but how many are online doing demanding things at the same time. A single 4K stream needs about 25 Mbit/s and a video call about 4 Mbit/s. As a rough guide:

• 3 to 4 sharers: 150 to 300 Mbit/s, comfortable for several people streaming and calling at once.
• 5 or more heavy users: 500 Mbit/s and above to keep a busy house smooth at peak times.

Full fibre (FTTP) suits a share best, because it holds up when everyone is online at once and has far better upload speeds than older part-fibre lines, which matters for video calls and uploading coursework.

How to work out each person's fair share

The maths is straightforward: divide the monthly bill by the number of housemates. The practical trick is timing. Have each person set up a standing order to the account holder for their share on the same date each month, and set it to land a few days before the broadband payment leaves the account holder's bank. That way the money is always there when the direct debit goes out.

Whatever you agree, write it down. Even a quick message in the house group chat covers it: the amount, the date, and who the account holder is. A clear agreement keeps the peace as much as it keeps everyone online.

Best ways to collect and track payments

There are three sensible ways to handle the money.

1. Equal split by standing order. The simplest and most transparent. Each person pays the same share automatically each month straight to the account holder. The downside is that if someone doesn't transfer on time, the account holder ends up chasing them.
2. Shared-bill app. Tracks who has paid and collects automatically, which removes the awkward reminders. Good for larger or busier houses.
3. House kitty. If you already pool money for bills, add broadband to the pot and pay the provider from it.

A shared spreadsheet is also worth keeping alongside any of these. It's a clear way to track when bills are due and how much everyone owes, and you can update it when things change, for example if the account goes into credit or the tariff is about to switch.

Bill-splitting apps worth using

Split-bill calculators and money-splitting apps are usually free to use. They work out who owes whom and how much, so you can see at a glance who's paid and who hasn't.

Free options named in the source material include Splitwise, Acasa and a shared Monzo pot. Acasa is a free app that helps split payments and budget for other household expenses. Try a couple of the free ones and keep whichever your household actually uses.

Some services go further and set up the accounts for you. Split the Bills, for example, arranges the accounts and direct debits across the services you choose, splits the bills equally, and sends each person one monthly bill paid from their own account. That removes the admin, but check exactly what's included and what it costs before signing, as some bundled services charge setup fees or raise prices mid-contract.

When a flatmate leaves or won't pay

This is where the single-name contract bites, and most general bill guides skate over it.

If a housemate leaves without paying their share, the named account holder is the one on the hook. The provider doesn't know or care who's moved out. The account holder has to cover the shortfall and keep payments in full and on time, or risk fines and a damaged credit rating. So before anyone moves in, make sure everyone understands this is real money, not a casual IOU.

For the account holder, it's worth signing up to a free credit report service such as Experian to keep an eye on your score.

If someone leaves mid-contract, the bigger problem can be the contract itself. Early-exit charges are steep in the UK. Data from one comparison service put the typical household's cancellation cost at £279, with broadband-only contracts at a median exit fee of £261 and broadband-and-TV bundles at £396. Many households checking the cost had around 12 months left to run.

So match the contract term to the tenancy from the start:

• A year's let: a 12-month plan usually gives the best price per month and lines up neatly.
• Shorter or uncertain stay: a 30-day rolling plan lets you walk away with a month's notice.
• Student lets: nine-month student plans exist but are seasonal and limited, usually launching July to October.
• Avoid long lock-ins: a 24-month plan can be cheapest per month, but only commit if the house is genuinely staying together that long.

One more thing worth knowing: if a provider moves you onto a materially different service, a fresh contract with a 14-day cooling-off period can apply, which occasionally opens a window to leave an old deal. It's situational, but ask.

If a housemate simply refuses to pay while still living there, the account holder's leverage is the written agreement and the group chat record. There's no magic fix, which is exactly why choosing a reliable account holder and automating payments matters so much.

Should you bundle broadband with other bills?

You can, and services like Split the Bills exist to roll gas, electricity, water, the TV Licence and broadband into one neat monthly payment per person. That can be genuinely less hassle, especially for students juggling several suppliers for the first time.

The trade-off is control. A broadband-only deal keeps the shared bill lean and lets you pick the best line for your address, and you can switch provider whenever a better deal appears, since tenants responsible for their own bills can choose their supplier. Bundling is about convenience; keeping broadband separate is about price and flexibility. For a settled house that wants minimum admin, bundling wins. For a cost-focused house, keep it separate.

Setting it up: a simple checklist

1. Pick the account holder. The person staying longest or best with money. Everyone agrees they carry the contract.
2. Check the address for deals. Availability changes street by street, so confirm what full fibre you can get before committing.
3. Match the term to the tenancy. 12 months for a year's let, 30-day rolling for anything shorter or uncertain.
4. Order two to four weeks before move-in, in the bill-payer's name, against the exact address. A self-install on an active line can go live within days; a new line needs an engineer and the landlord's permission for any drilling.
5. Agree the equal split and write it down. Amount, payment date, and who the account holder is.
6. Set up collection. Standing orders landing a few days before the direct debit, or a free app, or a kitty.
7. Keep a record. A shared spreadsheet or app so everyone can see who's paid.