Hi there, @lejomar.
When uploading a logo in QuickBooks Online (QBO), there are a few requirements that you need to meet. These are the following:
- Supported file types are. gif, .bmp, .png, .jpg, .jpe, or .jpeg.
- Your file should be smaller than 1 MB.
- Have a bit depth (or colour depth) of 24-bits or less.
- Use the standard RGB colour space (RGB).
- The shape of the logo should also be square instead of a rectangle.
For more information about company logos, you can check this article: Add, customize, or remove logos on sales forms.
For future reference, here are some links about personalizing your sales forms and recording your invoice payments in QBO:
Please know that I'm only a post away if you have any follow-up questions. Wishing you and your business continued success.
