If the employer agrees a set take home pay and then the employee's tax credits reduce by transfer to spouse, the employer will suffer a higher gross cost. I can not imagine any employer agreeing to this variation. In fact, any employer who agrees a set take home for any employee is leaving themselves open to all sorts of problems. The employer should work on gross pay, the employee gets whatever take home is correct after their credits/cut-off point.
You will be able to get all her credits except her PAYE tax credit. Last year at my request my wife's credits (including PAYE) were transferred over to me but according to Revenue the PAYE credit was transferred in "error" and I am now liable to pay back her PAYE credit.
Can you request from the Revenue for tax credits to be apportioned between husband and wife in whatever portion you choose. How do you inform Revenue of your request?
CKT
If the employer is a friend and an agreement (albeit a crazy one) was entered into at the start of employment where the employer guarantees a take home pay rather than gross pay and has kept his side of the bargain why do you now want to change that agreement.
I assume that the employer is paying her tax for her and you now expect him to pay even more tax on her behalf so that you can reduce your tax bill. Can't see it happen
CKT
If the employer is a friend and an agreement (albeit a crazy one) was entered into at the start of employment where the employer guarantees a take home pay rather than gross pay and has kept his side of the bargain why do you now want to change that agreement.
I assume that the employer is paying her tax for her and you now expect him to pay even more tax on her behalf so that you can reduce your tax bill. Can't see it happen
Surely it's as simple as telling her employer that she wants to continue being paid the GROSS wages she's on now. Changes to tax credits shouldn't make any difference to the employer then.