If you are looking to pay your Harahan City Taxes, you can access those resources here: 

https://www.municipalonlinepayments.com/harahanla

If you are looking to pay your Jefferson Parish Taxes and Fees online, you can access those resources here:

http://www.jpso.com/TaxBureau/EServices.aspx

If you are looking to pay your Louisiana State Taxes, you can access those resources here:

http://www.revenue.louisiana.gov/default.aspx