SubLimit is Windows software for small-business federal contractors on set-aside contracts. Import your payroll and subcontractor exports and it calculates the limitations-on-subcontracting percentage, with every figure linked to the source row it came from. Unknowns are flagged, never guessed. Your data stays on your computer, and it never certifies or submits anything. There is a free browser calculator (no sign-up), and the app has a 30-day no-card trial.