Hello s3agull, welcome to the forum and a happy new year to you.
If you haven't already done so please review the UKBA webpage How can I settle in the UK as a domestic worker?
You will need to complete application Form SET(O) here
Here are the SET(O) Guidance Notes
Looking at the application Form SET(O), your circumstances appear to meet those of Documents - section 10C
In which case it looks as though you will not need to provide pay slips provided your employer can supply a letter in line with Note 7
Note 7 For private servants in a diplomatic household or domestic workers in a private household, if you do not have payslips or a bank account to confirm employment over the last 5 years, you should submit an employer’s letter confirming that they are responsible for your accommodation, food and other living costs.
The UKBA suggest you consider supplying "Evidence of your finances such as bank statements, building society savings book(s), pay slips or other formal documents as evidence of your ability to maintain and accommodate yourself and any dependants without recourse to public funds."
So it seems that in your case 'other' evidence is well accepted.
If by any chance you have any confimations from HMRC (Tax office) such as P60 etc, then this would also be helpful.
Finally s3agull, dont forget you will also need to supply a Life in the UK test pass notification letter
Hope this helps you.
If you have any follow-up question just post here. Plenty of people looking forward to helping
