Interest will be calculated on the TDS amount in case if you have made late payment of TDS.
X Company has to pay of Rs.1,00,000/-to the vendor towards professional service charges.
X Company has deducted TDS on 25th May 2016 of Rs.10,000 (10% on 1,00,000) and paid TDS on 10th June 2016.
In the above example X Company should pay TDS before 7th of June 2016 but paid on 10th June 2016.
While calculating interest on TDS, you have to consider May 2016 is one month and you have been delayed payment for 3 days from 8th June 2016 to 10th June then the X Company has to pay interest for 2 months i.e. May & June.
Interest rate on late payment of TDS is 1.5% per month (p.a.18%)
Total interest payable will be 3%
You need to calculate interest for 2 months on TDS amount of Rs.10,000
10,000*3/100 = 300
TDS payment entry
TDS on Professional charges 194J Dr 10,000
Interest on TDS (10,000*3%) Dr 300
To Bank 10,300
TDS is paid through Challan No. /ITNS 281
Payment of TDS
TDS should pay section wise, while making of payment you need to select financial year and section like 194C, 194J & 194H.