Can we implement a tax for some type of invoice that the agency ask us to make a retention of 10.75% and pay that within monthly taxes. How can we implement that?

Yes, It's possible, usercristian.

I have some steps to help you include a retention on an invoice. To start, let's create a retainage account in the Chart of Accounts.

Here's how:

1. Go to Accounting > Chart of Accounts.
2. Click New, and choose Other Current Assets from the Account Type drop-down menu.
3. Select Retainage from the Detail Type drop-down list.
4. Enter the Name and Description. Then click Save and close.

Next, you can follow these steps to create a retainage item in the Products and Services page:

1. Click the Gear located in the upper right-hand corner and select Products and Services.
2. Click New, then select Service.
3. Enter the Name, Description, Rate, and put a check mark on the I sell this product/service to my customers box.
4. From the Income account drop-down menu, select the retainage account you've created.
5. Click Save and close.

Finally, include the retainage item on the invoice:

1. Go to + New > Invoice.
2. Select the customer's name, and add the invoice details.
3. Under Product/Service column, choose an item from the first line. Then, add the retainage item you've created on the second line.
4. In the RATE column, enter the amount of the retainage as a negative (-) number. If your retainage is a percentage, you must calculate this manually.
5. Click Save and Close.

I'm adding these articles that you can bookmark:

• Add an account to your chart of accounts in QuickBooks Online
• Add product and service items to QuickBooks Online

You can always get back here if you have additional questions or other concerns for QuickBooks Online. I'm always here to help.