2008/01/01 * (100) January
    Expenses:Books          $10.00
    Assets:Cash

2008/01/31 (101) End of January
    Expenses:Books          $10.00
    Assets:Cash

2008/02/01 * (102) February
    Expenses:Books          $20.00
    Assets:Cash

2008/02/28 (103) End of February
    Expenses:Books          $20.00
    Assets:Cash

2008/03/01 * March
    Expenses:Books          $30.00
    Assets:Cash

$ hledger -f- check

#test reg --payee=code
#08-Jan-01 100                   Expenses:Books               $10.00       $10.00
#08-Jan-01 100                   Assets:Cash                 $-10.00            0
#08-Jan-31 101                   Expenses:Books               $10.00       $10.00
#08-Jan-31 101                   Assets:Cash                 $-10.00            0
#08-Feb-01 102                   Expenses:Books               $20.00       $20.00
#08-Feb-01 102                   Assets:Cash                 $-20.00            0
#08-Feb-28 103                   Expenses:Books               $20.00       $20.00
#08-Feb-28 103                   Assets:Cash                 $-20.00            0
#08-Mar-01 March                 Expenses:Books               $30.00       $30.00
#08-Mar-01 March                 Assets:Cash                 $-30.00            0
#end test
#