Quick question re what double time costs an employer

[Guinness Guzzler]

just wondering if anyone knows this one. If an employee is on, say £10 an hour, the employer has to pay extra on top of that (employers NI contributions etc) so probably ends up paying nearer to £13 an hour (or whatever). If the employee was to work for an hour on a Saturday and get double time, would that mean they would get one hour at £20 and it would end up costing the employer around £26 (for arguments sake), or does one or more of the add ons that the employers pay not double when it is double time (so does it end up just costing £23 or so, or £24 etc due to the % on top of the wage not being exactly double what it would have been at single time)?

Very badly worded question, which is why i can find fuck all on google, but hopefully someone on here will have a clue what the fuck I'm asking

[girojim]

Employers NI rates are 13.8% on anything over £136 p/w

[Guinness Guzzler]

Originally Posted by girojim

Employers NI rates are 13.8% on anything over £136 p/w

Ah cheers, so if an employee is getting £10 an hour, it will cost the employer exactly double to pay him double time, nice one, just wasnt too sure, for some reason I had always heard that it didnt quite cost double, but that'll be wrong then!

[Heeeed the Ball]

NI is a % of your earnings, so the greater the earning the bigger the payment