Is it legal to renew the tax on an EV early?

We have an EV with tax renewal due end of May. Your site and others claim it is possible to renew the free tax on an EV before the changes in April. However the DVLA website ( https://www.gov.uk/vehicle-tax-advance...

Do I need to tax my car if the VED rate is zero?

I own a Skoda Citigo GreenTech which is tax exempt, do I have to reapply to keep free tax?

Can I drive to the Post Office to tax my vehicle once it has an MoT?

Can I drive to post office for road tax when MoT is passed?

I bought a newer version of the same car - so why is the tax so much more?

I had a Lexus SC430 2003 and changed for exactly the same car but a 2008. The tax for the new car is double the price of the the old car. How can the road fund be double for exactly the same car?

Does the DVLA still send renewal forms for taxing my vehicle?

Does the DVLA still send renewal forms for taxing my vehicle?