It is most likely that there have been adjustment journal postings made and you are only running the reports for periods 1-12.
When adjustment journal postings are made they go into a special period, period 98.
When you run the TB or Nominal transaction listing you need to include period 98 to get the right figures.
For the nominal transaction listing just run it for the year and untick the periods.
For the TB select period 98 when running it.