Hi I think in normal circumstances it depends how far in advance you are planning as to when things need to be done. I.e at the minute its unlikely you will be getting married in a few months time. I started planning about 14 months before wedding.
I started with:-
- A date, (if you haven't already)
- Number of guests as this could affect your -
- Venue - is it church or registry office followed by reception. Or everything all in one place?
- Catering if required and not provided by venue.
- If you require any accommodation/ transport for yourselves or guests I would do this ASAP.
- Registrar if required can only be booked in my area exactly 12 months in advance.
I did the above as soon as I set a date. Other than the registrar had to wait a couple of months for that booking.
I made a list of when the balances were due to be paid.
Then everything else really depends on your preference i.e if theres a fantastic local band you'd like for the evening reception and they get booked up quick I'd contact them ASAP.
Over the next few months I got quotes for photographers, cars, professional hair and make up, flowers, booked and paid deposit when I found a supplier I liked and was happy with.
Dresses may take up to 6 months to be made to measure, and then possibly time for alterations.
The men's suits needed to be ordered 8 weeks before.
Bought our rings about 9 months in advance as they were in the sale, same with my shoes.
If everyone is local I'd send invites out between 4-6 months.
However depends on when your wedding is, ie school holidays if there is the possibility people could book holidays you could send out save the dates as soon as you can or send invites out earlier.
Make sure you leave enough time for RSVPs, your venue will require final numbers and probably payment 2-4 weeks in advance.
Congratulations, happy planning and enjoy your day 