# RegFlags > RegFlags is a free MOT history check for any UK car or van, with mileage checks, red flags and a plain-English condition report in seconds. Enter a registration and RegFlags decodes every MOT test since 2005 (Northern Ireland since 2017) from the DVSA's official MOT History API. It highlights recurring problems, mileage gaps and inconsistencies, dangerous defects and outstanding recalls, compares the car with others of the same model and age, and writes an AI-assisted summary whose every figure is checked against the MOT record. - Category: MOT history check and used car report - Website: https://regflags.co.uk/ - Made by: [Steady Circuit Ltd](https://steadycircuit.com/) - Facts last reviewed: 2026-09-27 ## Who it's for - People buying a used car or van in the UK who want to check it before going to see it - Owners who want reminders before their MOT is due - Dealers, traders and part-exchange buyers appraising stock (RegFlags Trade) ## What it doesn't do RegFlags doesn't check outstanding finance, theft or insurance write-offs. Those need a paid vehicle history check from a specialist provider. ## Key features - Full MOT history for every test since 2005 (Northern Ireland since 2017), with defects and advisories grouped across 9 vehicle systems - Mileage analysis that spots gaps and inconsistencies in the odometer record and shows how far the car really goes each year - Red flags for recurring problems, dangerous defects and mileage inconsistencies - The RegFlags Rating: a 0 to 100 score for how reassuring a car's MOT record is, with every deduction listed - Comparison with thousands of cars of the same model and age, from DVSA's anonymised MOT data - A plain-English summary with good signs, watch-outs, questions to ask the seller and a test-drive checklist - Outstanding recall flag, and manufacturer recalls matched to the vehicle by build date - An estimate of ULEZ and Clean Air Zone compliance - MOT reminders and alerts when a watched car has a new MOT - An MOT reliability explorer with first-time pass rates and common failures for popular makes and models - For the trade: bulk checks, an API, branded PDF reports, team seats and a stock dashboard ## Use cases - Check a used car before going to see it - Spot clocked or inconsistent mileage - Find out what a car has failed or been advised on at previous MOTs - Get reminded before an MOT is due - Appraise part-exchange and trade stock in bulk - See which makes and models pass their MOT first time ## Why RegFlags - Checking a car is free, and the first check needs no sign-up - Built entirely on official, openly licensed data from the DVSA and the Department for Transport - Every figure in the AI-assisted summary is checked against the MOT record. If one doesn't match, a standard summary is shown instead - Compares a car with similar cars, not just with its own history ## Pricing - **Guest** (free, no sign-up): 3 checks a day, adds shared reports. - **Free account** (free): 5 checks a day, adds the full report, side-by-side comparisons and new-MOT alerts. - **Driver** (£2 a month or £15 a year): 30 checks a day, adds MOT reminders, chat with reports, PDF reports and AI assistant access. - **Trade** (£10 a month or £90 a year per seat): 500 checks a day per seat, adds bulk checks and an API. Prices are in pounds sterling. Full details: [Pricing](https://regflags.co.uk/pricing). ## Data sources - **DVSA MOT History API** (Open Government Licence v3.0): Live MOT history for every check: tests, results, mileage readings, defects and advisories, and the outstanding recall flag. - **DVSA anonymised MOT tests and results** (Open Government Licence v3.0): Aggregated into first-time pass rates, common failures and typical mileage for each make, model, age and fuel, so we can compare a car with similar ones. - **Department for Transport vehicle licensing statistics (VEH0120)** (Open Government Licence v3.0): How many of each model are still licensed and on the road in Great Britain, and how that compares with the peak. - **VehiclesDB** (CC-BY 4.0): The make and model names we recognise, body types and model popularity, reconciled from official vehicle registers. Vehicle data by VehiclesDB, licensed CC BY 4.0 (creativecommons.org/licenses/by/4.0); we adapted it, keeping the models on GB roads and matching them to DVSA's names. - **DVSA vehicle safety recalls** (Open Government Licence v3.0): Manufacturer recalls for each model, matched to a vehicle by its build date. Always confirm with the official recall checker. - **Vehicle Certification Agency car fuel and emissions data** (Open Government Licence v3.0): The Euro emissions standard each car version was approved to, from July 2000, matched by make, model, fuel and engine size for the ULEZ check when DVLA's record isn't available. - **DVLA Vehicle Enquiry Service (when enabled)** (Open Government Licence v3.0): Tax status, Euro emissions standard and export marker, which make the ULEZ check exact instead of an estimate. - **Ordnance Survey Code-Point Open and ONS geography lookups** (Open Government Licence v3.0): Where each postcode district is and which region it is in, so dealer market figures can be grouped locally, regionally and nationally. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v.3.0. - **Clean air zone rules (TfL and GOV.UK)** (Published guidance): Used to estimate ULEZ and Clean Air Zone compliance from fuel type and first registration date. Always check the official checker. ## Frequently asked questions ### Is it really free? Yes. Anyone can run 3 checks a day without signing up. A free account gives you 5 a day (including any you ran before signing up), plus the full report, side-by-side comparisons and new-MOT alerts. Paid plans add more checks, MOT reminders, chat with reports and PDF reports. ### Where does the data come from? MOT history comes live from the DVSA's official MOT History API. Comparisons with similar cars use DVSA's anonymised MOT dataset, and "still on the road" figures come from Department for Transport licensing statistics. ### Is the summary written by AI? Can it make things up? The summary is AI-assisted. It's written from facts we've already worked out from the MOT record, and every number in it is checked against the data before you see it. If anything doesn't match, you get a standard summary instead. ### Does it check for outstanding finance or write-offs? No. RegFlags uses MOT, recall and licensing data. It doesn't cover outstanding finance, theft or insurance write-offs, which need a paid history check from a specialist provider. ### What is the RegFlags Rating? Our 0 to 100 score for how reassuring a car's MOT record is. Every car starts at 100 and loses points for specific, listed reasons such as dangerous defects, recurring problems or a mileage inconsistency. It describes the record, not the car in front of you. ### Can I get reminders for my own car? Yes. MOT reminders are part of the Driver and Trade plans. Add your car to your garage and we'll email you, and send a push notification if you turn them on, 30, 7 and 1 days before its MOT is due. ## Links - [RegFlags home](https://regflags.co.uk/) - [Pricing](https://regflags.co.uk/pricing) - [RegFlags for the trade](https://regflags.co.uk/trade) - [Sample report](https://regflags.co.uk/sample-report) - [MOT reliability by make and model](https://regflags.co.uk/reliability) - [Data sources](https://regflags.co.uk/data-sources) --- Canonical page: https://regflags.co.uk/ RegFlags by Steady Circuit Ltd.