I use excel , did a very simple spreadsheet by myself - and i'm a computer idiot - then input the totals at SA online , doddle.
All you need to track is:
1. What you spent
2. What your total income is
3. What you you were stopped in tax.
4. Go to SA online and enter 1 , 2 & 3 and it works it out for you.
5. Go and treat yourself with the money you saved by not using an accountant or buying software.
Diggy
Spot on.