The rate is not hugely generous at 200 SPG points per rental. These convert into 600 Marriott Rewards points or, if you are crediting to Avios, 200 Avios points. You will need to reach certain thresholds depending on your SPG status before you can transfer points to airlines.
Interestingly, this is more generous than crediting a Hertz rental to Marriott Rewards. You only earn 500 points for doing that, compared with 200 SPG points (600 Marriott points) via this route.
One extra benefit is that SPG Platinum members receive free Hertz Five Star status.
However, for most people the most generous way to earn miles and points from Hertz is with Virgin Flying Club. You earn 1,000 Virgin miles per rental as this page of the Flying Club website explains. That is where my occasional Hertz rentals get sent.
How to earn Marriott Bonvoy points from UK credit cards (August 2021)
There are various ways of earning Marriott Bonvoy points from UK credit cards. Many cards also have generous sign-up bonuses.
The official Marriott Bonvoy American Express card usually comes with 20,000 points for signing up, 2 points for every £1 you spend and 15 elite night credits per year.
Until 31st August 2021, the bonus is doubled to 40,000 Marriott Bonvoy points.
You can apply here.
You can also earn Marriott Bonvoy points by converting American Express Membership Rewards points at the rate of 2:3.
Do you know that holders of The Platinum Card from American Express receive FREE Marriott Bonvoy Gold status for as long as they hold the card? It also comes with Hilton Honors Gold, Radisson Rewards Gold and MeliaRewards Gold status. We reviewed American Express Platinum in detail here and you can apply here.
You can also earn American Express Membership Rewards points with American Express Gold (20,000 bonus points), the American Express Rewards Credit Card (5,000 bonus points) and – for small business owners – American Express Business Gold (20,000 bonus points) and Business Platinum (40,000 bonus points).
(Want to earn more hotel points? Click here to see our complete list of promotions from the major hotel chains or use the ‘Hotel Offers’ link in the menu bar at the top of the page.)