Council Tax Reduction Scotland Overpayment: What Happens and What to Do

How Overpayments Happen

An overpayment — officially called Excess Council Tax Reduction — occurs when you received more CTR than you were entitled to. The most common causes:

• A change in income, savings or household composition that wasn't reported within the one-month statutory deadline
• The council made an administrative error in calculating your award
• A backdated benefit decision changed your income for a period when CTR was already in payment
• DWP data showing a UC award change arrived late

Whatever the reason, the council will recalculate what you should have received and compare it to what you actually got. The difference is the excess.

How the Council Recovers It

Excess Council Tax Reduction is not recovered through deductions from your ongoing CTR award. Instead, the council reverses the excess reduction on your Council Tax account, increasing the Council Tax balance you owe.

You then receive a Revised Council Tax Demand Notice showing the increased balance and recalculated monthly instalments for the remainder of the year.

In practice, this means your monthly Council Tax bill suddenly jumps. If you've been paying £0 because of a full CTR award, you might receive a bill for several hundred pounds covering the overpaid period.

Your Right to Challenge

You have the right to request an internal review of any overpayment decision. The deadline is two calendar months from the date on the decision notice. Your review request must be in writing — by letter, email or through the council's online portal.

Grounds for challenging include:

• The council's calculation is wrong (they used incorrect income figures or missed a disregard)
• You reported the change on time but the council didn't act on it
• The overpayment was caused entirely by the council's error and you had no reason to know your award was wrong
• The council failed to act on information it already held (for example, from DWP Data Share)

If the internal review doesn't resolve things, you can appeal to the First-tier Tribunal for Scotland (Local Taxation Chamber) within 42 days of the review decision. The appeal is free.

If You Can't Afford the Revised Bill

A sudden increase in your Council Tax bill can create genuine hardship. If you're struggling:

1. Contact the council immediately. Many councils will agree to a revised payment plan spreading the balance over more instalments. It's better to arrange this before you miss a payment.

2. Check whether you still qualify for CTR. If your circumstances have changed again since the overpayment period, you may be entitled to a new or higher award going forward.

3. Get free debt advice. If council tax arrears are part of a wider debt problem, speak to StepChange Scotland, National Debtline or Citizens Advice Scotland before the council escalates to a summary warrant.

Preventing Overpayments

The single best protection is reporting changes to your council within one month. The most frequently missed changes are:

• A partner moving in (their income becomes part of the assessment)
• Savings crossing the £6,000 or £16,000 thresholds
• An adult child starting work (triggers a non-dependant deduction)

Telling DWP about a change does not satisfy your obligation to tell the council. Report to both separately.

For a step-by-step approach to managing your claim — including what to report, when and how — the Council Tax Reduction in Scotland guide covers the complete process.

See more Scotland guides →