I HAVE BEEN USING ZOHO. I HAVE A SUGGESTION . WHILE THE USER INTERFACE FOR B2B IS GOOD. THE PROBLEM IS ARISING WHEN INVOICING FOR ONE TIME CONSUMERS. IT IS A VERY TEDIOUS JOB TO SAVE THE DETAILS OF THE CUSTOMERS FOR SINGLE TIME. RATHER THAN THAT IT WUD BE EASY IF THERE IS A DROP DOWN OPTION AND SELECTING THE TAX SLAB RATHER THAN SAVING ALL THE DETAILS .