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Calculate interest on late provisional tax payment

Posted 28 September 2015

SARS charges interest on late payments made toward provisional tax deadlines.

To calculate this late payment penalty, use the formula below:

Provisional tax amount x 10.25% x (days after deadline / 365)


Use the calculator below:



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Submit your
tax return
right here!


TaxTim will help you:

 Do Your Tax Return Easily
 Avoid penalties
 Maximise your refund

Tim uses your answers to complete your income tax return instantly and professionally, with everything filled in in the right place.

Let Tim submit your tax return direct to SARS in just a few clicks!

Get started