Tax not getting calculated at checkout

[kunalrrv]

Hello, i have below code on the button.

<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post" >
                                    <input type="hidden" name="cmd" value="_cart">
                                    <input type="hidden" name="business" value="************">
                                    <input type="hidden" name="lc" value="CA">
                                    <input type="hidden" name="item_name" value="Day 1 - Shopping Excursion">
                                    <input type="hidden" name="amount" value="225.00">
                                    <input type="hidden" name="currency_code" value="CAD">
                                    <input type="hidden" name="button_subtype" value="products">
                                    <input type="hidden" name="no_note" value="1">
                                    <input type="hidden" name="no_shipping" value="1">
                                    <input type="hidden" name="tax_rate" value="13.000">
                                    <input type="hidden" name="add" value="1">
                                    <input type="hidden" name="bn" value="PP-ShopCartBF:btn_cart_LG.gif:NonHosted">
                                    <input type="image" src="***removed***" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!" class="paypal_button">
                                    <img alt="" border="0" src="***removed***" width="1" height="1">
                                </form>

My main issue is the tax, i have added the tax under the profile as well as i have the tax_rate, but when i go to checkout, no tax gets showed up while checkout, i checked the discount & shipping (which i dont need for this), which works, but no tax. looking for help, thanks.

[kunalrrv]

One thing i figured out is that when the customer puts in his information, and depending upon the user's location, the tax is calculated, but it seems like i dont show them the tax until they pay.

[chenyu9312]

I have the same issue too :$

[scillybloke]

I also have the same issue with the tax...

Some of my add to cart buttons are zero rated and others are 20% VAT, works ok to paypal without mini cart but won't pass the information through using mini cart. Any ideas?

[ghost]

If I could get the tax to work this would be perfect. Anyone able to pass tax to the minicart?