The Payday Super SGC Calculator estimates a superannuation guarantee charge from a shortfall amount, nominal interest rate, days late, and administration fee.

$\text{Interest}=\text{Shortfall}\times\frac{\text{Interest rate}}{100}\times\frac{\text{Days late}}{365}$ $\text{Total SGC}=\text{Shortfall}+\text{Interest}+\text{Administration fee}$

Example

For a $1,000 shortfall, 10% interest, 30 days late, and a$ 20 fee:

Interest: $1,000 x 0.10 x 30 / 365 = $8.22.
Total modeled SGC: $1,028.22.

Questions

Is this the complete Australian SGC liability?

No. It models the entered shortfall and simplified interest and fee assumptions only.

Can the interest rate be changed?

Yes. The default is 10%, but the form accepts another non-negative rate.

Does this calculate the original contribution shortfall?

No. Enter the shortfall amount already determined from payroll records.

Limitations

Verify current ATO rules, statement obligations, nominal interest, administration charges, and payment deadlines before relying on the estimate.

Payday Super SGC Calculator