Changes in RCM provisions (w.r.t. 18.07.2022) are for 'Service by way of renting of residential dwelling to a registered person' irrespective of use (i.e. residential / non-residential).
But, Section 14 have no role to play solely because subject services are brought into RCM w.e.f. 18.07.2022. However, section 14 will definitely come into play (i.e. even for determining liability under RCM) where there is change of rate of tax (i.e. the situation where exemption was withdrawn - 'services by way of renting of residential dwelling for use as residence')
Furthermore, Section 14 (b) deals with case/es where the goods or services or both have been supplied after the change in rate of tax while 'the time of supply' u/s 13 is for liability / payment of gst.
In the context under discussion, one also needs to take note of Section 31 (5) which deals with raising tax-invoice in case of continuous supply of services.
Now, if there is clear agreement between tenant / landlord for lease / rental for 11 months or so and the material date - 18.07.2022 - falls some-where in-between that agreement and if rent is supposed to be paid by 10th of start of the month (which is general practice), then, following issues are worth consideration:
1. When services are supplied? At start of execution of agreement or continuously everyday over period of 11 months (i.e. period of lease / rental agreement) or at start of every month for that month.
2. If services are continuously supplied for everyday for 11 months (i.e. period of lease / rental agreement), what happens when supplier does not raise invoice till 17.07.2022 despite due date of paying rent for entire month of July, 2022 was 10.07.2022 and rent was also received on 10.07.2022 and ignoring the requirement of Section 31 (5).
3. Generally, such agreement does not either have pre-mature termination clause or have period of notice for early termination is pre-decided therein. And it is presumed that we are dealing with a situation where such event is not under consideration.
Main question/s - in the context under discussion here - is whether Section 14 (b) will come into play in above scenario just because landlord failed to raise invoice on or before 17.07.2022.
As there are multiple legal issues are involved here and some of them are dependent upon nature / contents of agreement between landlord and tenant, I was guarded in my response in my post at serial number 1 above.
Hence and in summary, I stand by what I said earlier in my post at serial number 1 above.
These are ex facie views of mine and the same should not be construed as professional advice / suggestion.