Unpaid Leave -Transferring tax credits to husband

[Newbie!]

My husband and I are due our first baby at the end of February and we are trying to see if we can afford for me to take unpaid leave at the end of the statutory maternity leave period.

I don't how to calculate this though as I guess I would be transferring tax credits to my husband during this time, so he would pay less tax than normal. Is there a straightforward way to calculate our estimated new income around that time?

 

[deadlyduck]

Try my spreadsheet available at http://taxcalc.eu/monthlyss. The Excel 2007 file format is best.

You'll need to set answer to the 'Marital status' question to 'Let me enter my tax credits' (it's the last option in the list of available answers).
Obviously, the rates etc are based on current 2012 values- if the tax credits or bands were radically changed in the December budget then the output would be very different (which might also radically change your decision).

If you need a hand with it leave a message here.