Part A A minor
0:23-0:46 "You never give me your money..."
0:46-1:10 "I never give you my number..."
Part B C major
1:10-1:32 "Out of college, money spent..."
1:32-2:10 "But oh that magic feeling..."
Part C A major
2:28-2:39 "One sweet dream...."
2:39-2:48 "Soon we'll be away from here..."
2:48-3:09 "Came true today..."
3:09-4:03 "One, two, three, four, five, six seven..."
Comments: Much like  "Happiness is a Warm Gun", "You Never Give Me Your Money" is a series of fragments that bear little musical similarities. Instead, they rely more on immediate repetition to establish formal autonomy within each section.
All three sections of Part A last 8 measures and employ the same chord progression.
The first section of Part B can be broken down into two iterations of a 4 measure phrase that employ an identical chord progression. The second section can also be broken down into 5 iterations of a 3 measure phrase that employ an identical chord progression, the last of which is truncated by an overlap with... The third section is instrumental and transitional in nature as it bridges Part B with Part C.
Part C, then, consists of four sections, the first of which repeats the chord progression heard at the start of Part B section 3, but now in A major instead of C major. That first section lasts just 4 measures before we hear section 2, which also lasts just 4 measures (although the fourth of these is a 2/4 bar whereas the first three were all 4/4, so it's more like three and a half measures in duration). The first two measures of section 2 use independent chords, but the last two (or one and a half) borrow the first two chords of section 1. Sections 3 and 4 repeat the same 2-measure chord progression over and over. The difference between the two sections, then, are less musical than lyrical, with McCartney alone singing the former, and multiple voices in harmony singing the latter.
And if you've read this far and have followed any of the above, I've done my job :-)