Online forms: Apply for council tax single person discount Page 1 of 5 Due to a backlog, we're currently taking three to four weeks to process council tax forms. Properties occupied by only one person over the age of 18 qualify for a 25 per cent discount on council tax liability. If you're the sole adult occupier of a property, complete this online declaration form. Please note: If, after completing this declaration form, you cease to be the sole adult occupier of the property, you must notify the council within 21 days. Failure to notify the council of a change in your circumstances, or claiming a discount which you're knowingly not entitled to, is an offence and could result in a penalty being imposed or a criminal prosecution. Save and continue If you have registered with our web site and are signed in, you can leave a form at any time to complete later. You can also view all of your saved and completed forms from your Account page.