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Check Band

The UK's Council Tax Band Intelligence Layer — Built for Scale

Integrate council tax band checking and misbanding detection directly into your workflow. Built on official VOA data, delivering instant results for claims firms, conveyancers, landlord portfolio managers, and property tech companies.

318
Local Authorities Covered
3.2M
Estimated Misbanded Properties
£221
Average Annual Overpayment

Built for Your Industry

Whether you're screening leads, auditing a property portfolio, or adding value to conveyancing reports, Council Tax Checker delivers the data you need — instantly, accurately, and at scale.

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Council Tax Claims Firms

Stop wasting resources on unwinnable cases. Pre-screen every address before canvassing and focus your efforts where comparator evidence already supports a challenge.

  • check_circle Pre-screen every address before committing to door-to-door canvassing or direct mail
  • check_circle Only pursue cases with comparator evidence — our system flags properties where neighbours in identical homes pay less
  • check_circle Cut cost per acquisition by targeting winnable cases and eliminating dead ends before they cost you money
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Landlord Portfolio Managers

Audit an entire property portfolio in under a minute. Identify misbanded properties, quantify potential refunds, and make informed decisions about which cases to pursue.

  • check_circle Audit your entire portfolio — submit all addresses and receive instant misbanding flags for each property
  • check_circle Identify HMO and void-period exposure — understand where council tax costs are higher than they should be
  • check_circle Generate refund estimates before engaging a specialist — know the potential value of each case upfront
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Conveyancers & Search Firms

Add a council tax band health check to your transaction reports. Flag misbanding risk at the point of purchase, giving your clients actionable intelligence before they complete.

  • check_circle Add council tax band health checks to conveyancing reports — a value-add that differentiates your service
  • check_circle Flag misbanding risk at point of purchase — buyers can factor ongoing council tax costs into their decision
  • check_circle White-label output available for volume firms — branded reports that slot into your existing workflow

integration_instructions How Integration Works

1

Submit an Address or Postcode

Send a single address or batch of postcodes via API. Our system accepts standard UK address formats and postcodes, with fuzzy matching to handle formatting variations.

2

Receive Band Data + Comparator Analysis

Within seconds, receive the property's current band, comparator data for neighbouring properties, a misbanding risk flag, and estimated annual overpayment — all in structured JSON.

3

Act on Flagged Cases

Pipe results into your CRM, case management system, or client reports. Flagged properties are instantly identifiable, letting your team prioritise high-value cases without manual research.

Example API Response 
{
  "address": "14 Oakfield Road, Birmingham, B29 7EL",
  "currentBand": "D",
  "localAuthority": "Birmingham City Council",
  "comparators": {
    "sameStreet": { "total": 12, "lowerBand": 8 },
    "dominantBand": "C",
    "mismatch": true
  },
  "risk": "high",
  "estimatedAnnualOverpayment": 221,
  "estimatedRefund": {
    "fiveYear": 1105,
    "tenYear": 2210,
    "sinceInception": 7293
  }
}

speed Technical Specifications

Council Tax Checker is built for reliability, speed, and compliance. Here's what you're integrating with:

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Sub-2-Second Responses

Results returned in under 2 seconds per address. Real-time enough for user-facing applications; fast enough for batch processing at scale.

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Official VOA Data

All band data is sourced directly from official Valuation Office Agency records. Updated regularly to reflect the latest VOA listings for 2026/27.

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Privacy Compliant

No personal data stored. No query data retained after response delivery. GDPR compliant by design. All data is derived from publicly available records.

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Batch Processing

Submit hundreds or thousands of addresses in a single batch. Ideal for portfolio audits, postcode-level canvassing, and bulk screening operations.

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JSON API Format

Clean, structured JSON responses designed for easy integration with CRMs, case management systems, and custom dashboards. Full documentation provided.

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Full England Coverage

All 318 local authorities in England covered. Every council tax band for every residential property, with comparator analysis at street and postcode level.

devices For Property Tech Companies

If you're building property technology products — whether that's a marketplace, a lettings platform, a mortgage comparison tool, or a tenant management system — council tax band data adds a layer of intelligence your competitors probably don't have.

Imagine showing a prospective buyer not just what they'll pay in council tax, but whether that amount is fair compared to identical properties nearby. Or giving a landlord a one-click audit of their entire portfolio's council tax exposure. These are the kinds of features that increase engagement and retention — built on data that's already public but difficult to access at scale.

Integration Options

  • api RESTful API — standard HTTP endpoints with API key authentication
  • webhook Webhook callbacks — receive results asynchronously for batch operations
  • download CSV/bulk export — upload a spreadsheet of addresses, download results
  • palette White-label widget — embed our checker directly in your platform, branded as yours

quiz Frequently Asked Questions

What data does the Council Tax Checker API return? expand_more
The API returns the property's current council tax band, comparator data for neighbouring properties (including band distribution on the same street and postcode), a misbanding risk flag, estimated annual overpayment where applicable, and the property's local authority. All data is sourced from official VOA records and returned in structured JSON format.
How fast are API responses? expand_more
Single-address queries return results in under 2 seconds. Batch processing is available for high-volume lookups, with throughput tailored to your use case. We support both individual address queries and bulk postcode submissions, with webhook callbacks available for large batches so your system doesn't need to poll for results.
Is the data GDPR compliant? expand_more
Yes. Council Tax Checker does not store personal data. All council tax band information is sourced from publicly available Valuation Office Agency records. No query data is retained after the response is delivered, no cookies or tracking are applied to API requests, and no personal information about property occupants is processed or returned.
Can I white-label the output for my clients? expand_more
Yes. White-label output is available for volume firms, including conveyancers, search providers, and claims firms. Reports can be branded with your company identity and integrated directly into your existing client-facing documents and workflows. We offer both an embeddable widget and API-driven report generation to suit different integration needs.

Request Integration Access

Tell us about your use case and we'll set you up with API credentials, documentation, and a dedicated integration contact. Most integrations are live within a week.

We typically respond within 1 working day.

See It in Action First

Try our consumer-facing tool to experience the data quality and comparator analysis firsthand. Enter any postcode and see instant results.

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