www.FailureIsNotAnOption.GuildLaunch.com For guild info.  Type /guildtax for commands and to refresh Guild MOTD tax rate.  -  This addon is is free to use for any guild and free to redevelop for any addon author.

IMPORTANT NOTE
You will need to remove walking_fishy's Guild Tax, and anyother Guild Tax addons you use, or you will risk double taxation with out representaion.

ABOUT
First i would like to thank walking_fishy for the core progam, the work is all his. 
Second i would like to thank "Failure is Not an Option of Dragonblight" for putting up with my slacking off in raids while i tweek addons, "Multitasking LMFAO". 
What i have done is modified the core to add a minibutton and set the default Tax or Tithe to 10% from 5% (Tithe = 10 so why not). The interface has changed slightly but mechanics are the same.

HOW TO USE
Guild leaders need to add a line to the "Guild Message Of The Day, MOTD" with the amount you wish to tax.
As long as it contains the word 'TAX' or 'GUILDTAX' with the amount you want to tax after then its fine.
It is NOT case sensitive.
E.G 
Guildtax = 15%
Tax - 86%
GUILDtax: 25
TaX 20
If there is an amount in both Guild MOTD and guild info the one in the guild MOTD will be used.
If no line is added to the Guild Message or guild infomation of the day then the default of 10% will be used.
Tax cannot be set above 100% or below 0%, if this happens it will be set at 10%.
The amount taxed will be saved up until a player visits the guild bank, at which point it will be deposited automatically.

NEW BUTTONS!
GLoad = pulls new  Guild Info or MOTD tax amount.
             Note: If new tax is set in MOTD just open guilld bank to update Tax Rate amount. Will also refresh if vendor, loot window is opened.
             Note: If new tax is set in MOTD, using command /guildtax, or /guildtax rate to set new Rate.
             Note: If new tax is set in MOTD, closing Tax window if open, or opening then closing Tax frame with set new Rate.
             Note: If new tax is set in MOTD, opening Tax window with MiniMap Button will  Update new Tax Rate.

Evade = Resets Tax Amount to 0. This is the amount that adds up ass you loot or vendor items that gets deposited in guild bank.

Guild Tax Optons -
Hide = hides the  Guild Tax Options Frame if open.
Show = shows the Guild Tax Options Frame if closed

Minimap Button Options -
Hide = Hides Minimap button if shown
Show = Shows Minimap button if hidden

SLASH COMMANDS
Type '/guildtax' to bring up the list of commands
Type '/guildtax options' to bring up the options window
Type '/guildtax show' to display the tax window, showing how much tax you are to pay
Type '/guildtax rate' display the Guild tax rate
Type '/guildtax tax' display the Guild Tax that will be paid next bank visit.
Type '/guildtax total' display the toal amount of Guild tax you have paid.

WHISPER COMMANDS
If you whisper a player who has the Guild Tax addon with the command '!GuildTax'
you will get a reply with that players settings and their total tax ever paid.

WHAT IS TAXED
Small change, quest rewards, money from the mailbox.
Small changed is the small amounts of cash you loot from bodies, normaly only a few silver and copper.
Quest rewards are the cash reward from completeing a quest, not the items.
Mailbox will take tax from all the money earnt though the mail (auction house and COD mail).
Vendor amounts, will take any profit you make from selling items to a vendor.

MORE TO COME
2. To add Option to set default tax in Options Menu
3. Open to Requests

INSTALLATION
1. Unzip the 'FiNaoGuildTax.zip' file
2. If your unzip program allows you to specify a location, then unzip it into the 'Interface/AddOns' folder contained in 
your WoW folder (the location that WoW was installed)
3. If your unzip program doesn't let you specify the destination, then find your WoW folder (where it was installed) and 
drag the 'GuildTax' folder into the 'Interface/AddOns' folder.


VERSIONS
--------
6:21 PM 10/7/2009  Redesigned Guild Tax UI
                    Addon Button tool tips for added ease of use.
                    Added Evade Button for reseting Tax Amount to 0
                        Note:  Use this if you do not want to pay the tax you have accrued though loot, mail, vendor.
             Released Guild Tax v. 4.0.0

4:09 AM 10/2/2009  GLoad button now refreshes MOTD or Guild info Tax amount.

2:31 AM 10/2/2009 Added support to refresh current MOTD tax amount by:See NOTES:
             Note: If new tax is set in MOTD just open guilld bank to update Tax Rate amount. Will also refresh if vendor, loot window is opened.
             Note: If new tax is set in MOTD, using command /guildtax, or /guildtax rate to set new Rate.
             Note: If new tax is set in MOTD, closing Tax window if open, or opening then closing Tax frame with set new Rate.

12:30 AM 10/2/2009 fixed bug with total tax todate not updating with refreshed version.

11:23 PM 10/1/2009 added total tax todate to Gtax frame.
added current tax rate to Gtax frame.
added Options show / hide buttons to Gtax frame.
added Minimap button show / hide button to Gtax frame

6:02 AM 9/30/2009 added Comment conversion to SVN.

5:08 AM 9/30/2009 added to SVN repository for dymanic updating. v2.3.2

7:33 PM 9/29/2009 - v. 2.3.1
Minor Frame Changes to adjust for close buttons
Added guild stamp to Options Frame.
Upated Toc for use with WoW 3.2.2, no longer shows out of date.

4:25 AM 9/27/2009 - v. 2.1
Drshow of Dragonblight takes over project.
Added Mini Map button to call Frame.

V.1.1.6
Bug fixed with collecting tax while in a raid.

V.1.1.5
Bug fixed with Chat messages.
Bug fixed when depositing money.

V.1.1.4
Fixed an error with the '!guildtax' whiper command.

V.1.1.3
Completely re-done the UI.
Added the option to take tax from items sold to the vendor.
Added the option to collect tax from each source with the guild.

V.1.0.2
Added the option to take tax from the mailbox.
Added the choice of putting the tax amount in either the MOTD or guild infomation.
Fixed a bug where it sometimes didnt get the tax rate from the guild MOTD.

V.1.0.1
Added the option to take tax only when in a group or raid with a guild member

V.1.0.0
First release of the guild tax addon.
Included:
Disabling tax collection from small change and quest rewards
Disabling bank deposits.
Able to whisper player '!guildtax' to see their settings.
Getting tax amount from Guild MOTD