@Soundbathfan @JenniferBarkley
The starting point for both Mat leave and shared parental leave is the statutory entitlement. Then you look at statutory pay then occupational pay.
The mother has to take SML ( and SMP) from the date she starts maternity leave until 2 weeks after the birth. From that point she can opt for SShPL and SShPP.
The father/partner is entitled to 2 weeks paternity leave & pay - must be taken within 56 days of the birth. Traditionally taken as the 2 weeks after birth mirroring the compulsory 2 weeks SML & SMP.
SShPL is 52 weeks less any weeks of SML I.e. 50 weeks or less depending how much SML is taken before the birth.
You split the SShPL between the mother and partner. It can be taken at the same time or alternating. For example if the mother has 2 weeks SML the father 2 weeks SPL there are 50 weeks SShPL and both could take 25 weeks at the same time - at 27 weeks all entitlement is exhausted. However, they could alternate taking 4 weeks each so covering 12 months. The mother could take the first 26 weeks and the partner the remaining.
Once you have worked out the leave then you apply the pay element. Unlike SMP which is paid 6 weeks @ 9/10ths and 33 weeks @SMP concurrently you have more choice which weeks of SShPL are paid as SShPP. So work out how many weeks of SShPP you have left after deducting weeks SMP and allocate them to the weeks of SShPL. You can have 4 weeks paid 4 weeks unpaid 4 weeks paid etc or both be paid at the same time.
A key factor are the rules around occupational pay e.g. OShPP. Normally this follows the rules for SShPP because OShPP is paid as a top up to the statutory payment. Then you look at working KIT/SPLIT days when you are on unpaid SShPL, remember you may get tax rebates as your earnings will be lower.
Finally remember you accrue annual leave and can use this to extend both you and your partners time at home or phase return to work. Again tax rebates can maximise income from Annual Leave.
I have tried to make this as clear as I can because it is complicated and I don’t know your employers rules, your exact dates etc. What you need to do is think through using the ACAS guide and then talk to yours and DHs HR teams to confirm you have got it right.
HTHs