How long do I need my car insurance to tax my car?

For the purpose of taxing your car, you need to have valid insurance on the vehicle when the road tax starts. This means that if you are buying road tax for your car today and the road tax will start as from today, then you will need an insurance policy which shows that the vehicle is adequately insured. However if your car insurance is likely to expire soon, chances are that you will not be able to renew your car tax unless you can show proof that you'll be renewing your car insurance (this especially happens when you go to the post office, they will not allow you to renew the tax disc unless you show you have renewed your car insurance).

Remember you need to have a valid MOT certificate as well to renew the car tax.