Does anyone know of a salary calculator that includes non pensionable allowance?

[phm4t]

I am losing my mind trying to work out what my new salary will be. I am getting an allowance on top of my salary that is taxable but not pensionable, I have put the figures into 4 different AI bots and they each give me wildly different figures. I’m struggling to work it out manually as I just don’t understand how pension impacts tax etc.

I usually use salary calculator but it doesn’t have an option to make the allowance non pensionable, anyone know of one that does?

This is my go to: www.thesalarycalculator.co.uk/salary.php

You can put the allowance into the bonus section?

Thank you, that’s what I usually use but I can’t see a way to make the allowance not pensionable, and I can’t just omit pension as it impacts tax.

https://listentotaxman.com/ allows you to enter your pension contribution as £ not a percentage so can you either use the figure from your payslip or use the percentage contribution multiplied by your base salary to work out your take home pay?

Thanks so much, finally got around to giving this a go and clearly the key is to put my pension contribution in as a flat figure as opposed to a percentage so salary calculator works too. Thanks for the help!