>>>>So... let me think. Q&D solution:
>>>>
>>>>

* try with 12th of the first date's month
>>>>d12=date(year(d1), month(d1), 12)
>>>>*-- if first date is past 12th, use 12th of the second date
>>>>if d12<d1
>>>>  d12=date(year(d2), month(d2), 12)
>>>>endif
>>>>scan for between(d12, d1, d2)
>>>>  && do stuff here
>>>>endscan

>>>
>>>I think this would work (uses Julian date):
>>>
>>>

BETWEEN(SYS(11,DATE(YEAR(PpBeg),MONTH(PpBeg),12)),SYS(11,PpBeg),SYS(11,PpEnd)) ;
>>   OR BETWEEN(SYS(11,DATE(YEAR(PpEnd),MONTH(PpEnd),12)),SYS(11,PpBeg),SYS(11,PpEnd))

>>
>>I was also tempted to make it a one-liner but resisted it for clarity's sake. Payroll report never hinges on a couple of milliseconds more or less.
>
>I didn't realize how big this would be until after I posted it. I built it up with a cut & paste of the two parts. Thanks for making it more readable.

As we said in some other thread once, readability is in the eye of the beholder :).

between(date(year(iif(day(d1)<=12, d1, d2)), month(iif(day(d1)<=12, d1, d2)), 12), d1, d2)

is an equivalent one-liner I had in mind... which I wouldn't like to see in my code. Just a matter of taste.