How to Check if Dorset Council Calculated Your Council Tax Reduction Correctly

If you've received a council tax reduction decision from Dorset Council and the amount looks lower than you expected, the most useful thing you can do before calling anyone is check the arithmetic yourself. Dorset's working-age scheme uses an income-banded grid introduced in April 2024, and the most common errors are mechanical: a disregard that wasn't applied, an income element that should have been excluded, or a non-dependant deduction that doesn't match your household situation. You don't need legal knowledge to catch these — you need the decision notice, your income evidence, and a systematic way to work through the numbers.

What a Dorset CTR Decision Notice Contains

Your decision notice should show:

• Your assessed net weekly income — the figure Dorset Council used to place you in an income band
• Your income band — Band 1 (100% reduction) through Band 6 (0%)
• Your council tax liability — the weekly charge before and after reduction
• Any non-dependant deductions — a flat £5 per week for each non-dependant adult in your household
• The effective date — when your award starts (normally the Monday after your application was received)

If any of these are missing, request a full breakdown from the benefits team before proceeding. You're entitled to a written explanation of how the decision was reached.

Step 1: Recalculate Your Net Weekly Income

This is where most errors happen. Dorset's scheme requires a net weekly income figure after applying specific disregards and exclusions. Work through this in order:

Start with your assessable household income. For wages and self-employment, deduct tax, National Insurance and 50% of personal or occupational pension contributions; for self-employment, also deduct allowable business expenses. Add pension income and the benefits counted by the scheme.

Remove fully disregarded benefits. The following are completely excluded from the calculation:

• Personal Independence Payment (PIP)
• Disability Living Allowance (DLA)
• Carer's Allowance
• Attendance Allowance
• Child Benefit
• Child Maintenance
• War Disablement Pension
• UC housing element
• UC carer element
• UC disabled child element
• UC LCW element
• UC LCWRA element

If anyone in the household receives a qualifying disability benefit, also subtract Dorset's £50 per week disability disregard from assessable weekly income.

Apply the £20 earned income disregard. If you or your partner have any earned income (employment or self-employment), deduct £20 per week from the combined earned income total. This is per household, not per earner.

Convert to weekly. If you're paid monthly, multiply by 12 and divide by 52. If you're on Universal Credit, take your monthly UC payment (after removing disregarded elements), multiply by 12, divide by 52, and add any weekly earned income (after the £20 disregard).

Compare against the band thresholds. Check your household type (single, couple, family with 1/2/3+ children) and find the corresponding row in the 2026/27 income band grid. Your weekly figure should place you in a specific band with a specific percentage discount.

If the band on your decision notice doesn't match the band your recalculation produces, you've found a discrepancy worth querying.

Step 2: Verify Non-Dependant Deductions

Dorset applies a flat £5 per week deduction for each non-dependant adult living in your household. A non-dependant is someone aged 18 or over who lives with you but isn't your partner, a commercial lodger or a rent-paying tenant — typically an adult child or other family member. The £5 deduction applies regardless of the non-dependant's earnings; no deduction applies if they are enrolled in full-time education.

Check: does the number of non-dependant deductions on your notice match the actual adults in your household? Has a deduction been applied for someone who should be exempt?

Step 3: Check the Effective Date

Your award should start from the Monday after Dorset Council received your completed application. If you believe the council recorded a later claim date than when you submitted the application — for example, if it later asked for supporting documents — ask which receipt date it used.

If you applied for backdating and it was refused, check whether you explicitly requested it and supplied proof of continuous entitlement, income, capital and household circumstances for the full period. Dorset allows up to 3 calendar months of backdating for working-age claims.

Step 4: Check the Property Band Cap

Dorset caps working-age CTR awards at the Band E charge level. If your property is in Band F, G, or H, your reduction is calculated on the Band E charge — not your actual band. This is correct under the scheme rules, not an error. But if your property is in Bands A through E, no cap should appear on your notice.

What to Do If You Find an Error

Informal review first. Contact Dorset Council's benefits team and explain specifically which number you believe is wrong and why. Quote the figure on your decision notice and the figure your recalculation produces. Many errors are resolved at this stage.

Formal grievance. If the informal route doesn't resolve it, email a written grievance to Dorset Council's benefits team at [email protected] within one month of the decision. State the specific element you're challenging — for example, if PIP was counted as income or the £20 earned income or £50 disability disregard was missed — and include supporting evidence.

Valuation Tribunal appeal. If the council upholds the original decision and you still believe it's wrong, you can appeal to the Valuation Tribunal for England (VTE). This is free. The VTE is independent of the council and can direct it to correct an award if it misapplied the scheme.

At no point do you need a solicitor or paid representative for any of these steps. The official routes are entirely free.

Where a Guide Helps

The calculation above is the simplified version. In practice, the arithmetic gets complicated when you have:

• Self-employment income with allowable expenses and averaging periods
• Multiple income sources across a household
• UC with earned income and several disregarded elements
• A recent change of circumstances that affects which figures apply

The Dorset Council Tax Reduction Guide includes a decision audit worksheet that walks you through the full verification step by step — including the awkward cases — and a template for writing a formal grievance if you find a discrepancy. It's $24 with a full refund guarantee and no time limit.

Who This Is For

• Anyone in Dorset who received a council tax reduction decision that seems too low
• People whose application was refused and who want to check whether the refusal was correct
• UC claimants who aren't sure the right elements were disregarded from their income
• Households with non-dependant adults where the deductions don't look right
• Anyone preparing to submit a written grievance or VTE appeal

Who This Is NOT For

• People in arrears or facing enforcement — contact StepChange (0800 138 1111) or National Debtline (0808 808 4000) for free debt advice before challenging the amount
• Residents of Bournemouth, Christchurch or Poole — BCP Council uses a different scheme
• People who haven't applied yet — apply first through Dorset Council's online portal, then check the decision when it arrives

Frequently Asked Questions

How long do I have to challenge a council tax reduction decision?

Submit a written grievance to Dorset Council within one month of the decision. The council has two calendar months to respond. If it upholds the decision, appeal to the Valuation Tribunal within two calendar months of the written response. If the council does not respond within two calendar months, you can appeal within four calendar months of submitting your grievance.

Does challenging a decision cost anything?

No. Informal contact, a written grievance, and a Valuation Tribunal appeal are all completely free. You don't need a solicitor or paid representative at any stage.

What if the council made a mistake in my favour?

If the council finds that your award was higher than the scheme allowed, it can cancel the excess discount and increase the balance on your Council Tax account. It will issue a revised bill; ask for the calculation and use the written grievance process if you disagree.

Can I check someone else's decision for them?

Yes. If you're helping a family member, you'll need their decision notice and income documents. The calculation process is the same regardless of who does it. If the council needs to deal with you directly, the claimant can authorise you as a representative in writing.

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