I (UK) contribute the majority of my salary to my pension; as much as it makes sense to do. As far as the taxman is concerned it’s not income and so I drop down

I (UK) contribute the majority of my salary to my pension; as much as it makes sense to do. As far as the taxman is concerned it’s not income and so I drop down tax bands. My take-home is less, but my overall wealth is higher. It’s true that I may never see that pension, but money given to the taxman is money I’ll never see again anyway.