Single Person Council Tax Discount Calculator — 25% Off Your Bill

How the 25% Single Person Discount Works

Council tax in England, Scotland and Wales is calculated on the assumption that at least two adults live in every dwelling. The full bill effectively splits into two halves: 50% relates to the property itself and 50% relates to having two or more adult residents. When only one adult counts as living in the home, that second ‘personal’ element is halved, producing a flat 25% reduction on the whole bill. This is the single person discount, sometimes called the single occupancy discount or sole occupancy discount.

The 25% figure is statutory — it is set by law (the Local Government Finance Act 1992) and is identical in every local authority across Great Britain. Your council cannot offer more or less than 25% for a standard single person discount, regardless of your band or where you live. What does vary by council and band is the size of your underlying bill, which is exactly why this calculator asks you to enter your own annual charge: a Band A household in a low-charging area might save around £300, while a Band G household in a high-charging area could save over £700.

Because the discount is a percentage, it applies to the full annual charge before any other reductions such as Council Tax Reduction (Council Tax Support). If you are on a low income you may be entitled to both the single person discount and Council Tax Reduction — they are separate schemes and you can usually claim both. Use our Council Tax Reduction calculator to check the means-tested support, and this page for the single person discount.

Who Counts as an Adult — and Who Is ‘Disregarded’?

For council tax, an ‘adult’ is anyone aged 18 or over. But the rules also ‘disregard’ certain people — meaning they are not counted when working out how many adults live in the home. If you live with people who are all disregarded, you are treated as living alone and qualify for the 25% discount. The main disregarded groups, per GOV.UK, are:

• Anyone under 18. Children and teenagers under 18 never count, even if they have left school.
• Full-time students on a qualifying course (and student nurses). A home where everyone is a full-time student is usually fully exempt, not just discounted.
• 18 and 19-year-olds in full-time education (for example, at school or sixth-form college).
• Apprentices on a recognised scheme who earn a low wage and are working towards a qualification.
• Young people under 25 funded by the Education and Skills Funding Agency.
• People who are severely mentally impaired (SMI) — for example, due to dementia or a learning disability — where a doctor confirms the impairment and the person qualifies for a relevant benefit.
• Live-in carers who provide care for at least 35 hours a week to someone who is not their spouse, partner, or a child under 18.
• Foreign language assistants registered with the British Council.
• Diplomats and members of visiting forces in certain circumstances.
• People in prison (except those in for non-payment of council tax or a fine) and certain people in hospitals or care homes.

If you have a carer staying with you, or you live with a student son or daughter, it is well worth checking — many single person discounts go unclaimed because people assume that having someone else in the house automatically rules them out. It often does not.

Worked Example: £2,000 Bill

Suppose you live alone and your full annual council tax bill is £2,000. The single person discount takes 25% off:

So a £2,000 bill becomes £1,500 and you save £500 a year. The exact figures depend on your own bill — pop your real annual charge into the calculator above to see your numbers. Whatever your band, the saving is always 25% of your full charge.

How to Apply for the Single Person Discount

You apply for the single person discount through your local council — not through GOV.UK or HMRC. Central government sets the 25% rule, but each council administers it and pays the discount. The quickest route is:

1. Go to the GOV.UK ‘Apply for a Council Tax discount’ service and enter your postcode to find your council.
2. Open your council’s single person discount (or ‘sole occupancy’) form — almost all councils now offer this online.
3. Have your council tax account number ready (it is on your bill), plus the date you became the only adult in the property.
4. Declare anyone else who lives with you and why they are disregarded (for example, “full-time student”).
5. Submit. The discount is usually backdated to the date you became eligible, and your future bills are reissued at the lower amount.

Most applications take only a few minutes and many councils confirm the discount within a couple of weeks. There is no charge to apply, and you should never pay a third-party ‘agent’ to claim a single person discount on your behalf — it is free and straightforward to do yourself.

What to Do if Your Circumstances Change

The single person discount is granted on the basis of who lives in your home at a point in time, so you have a legal duty to keep your council informed. You must tell the council — usually within 21 days — if anything changes that affects the discount, for example:

• A second adult moves in (a partner, a returning adult child, a lodger, or a relative).
• A student finishes their course and is no longer disregarded.
• A disregarded person’s status changes (for example, an apprentice completes their apprenticeship).
• You move house — the discount does not automatically transfer to a new property.

If you stop being eligible and fail to report it, the council can claw back the discount you were not entitled to and may charge a penalty (commonly £70). Councils increasingly run data-matching reviews and periodic re-checks to spot single person discounts that should have ended, so it always pays to be upfront.

The duty cuts both ways in your favour, too: if a second adult moves out, apply straight away and the discount can be backdated to the date you became the only adult, putting money back in your pocket.