tax calculation script

This project was awarded to bistanil98 for $450 USD.

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Project Budget
$250 - $750 USD
Total Bids
Project Description

I need a php script embedded into a wordpress templates:

1. users will walk through the form and fill in their data.

2. depending on what they choose they will see different pages and there are different calculations. Every tax year has it different variabeles, so we want to store these variabeles in the database so we can easilly change them for another tax year.

3. the last page will tell them if they will get Tax back (depending on the calculations). When they send the form it will give the user a new client nummer and invoice number (the client number and invoice number should also be stored into the database along with an their email).

4. The input and result data will be send either by email to the user and us or inserted into a database.

Security is a high priority for us (we have ssl certificate installed), so we are thinking about using GnuPG keys when emailing to us. The email to the client should not be encrypted. If we choose a insertion in database, the data should be encrypted with a key. But we also need to be able to decrypt the data.

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