Avalara, Inc.

a two-way range of $488 to $490 million. As implied by our Q4 guidance, we are improving our full-year 2020 non-GAAP operating loss guidance from a range of $16 to $20 million to a loss range of $7 to $9 million. We are in the early stages of our 2021 budget process and plan to provide detailed guidance on our fourth quarter conference call. That said, I would like to share some early thoughts on 2021. Our thesis and vision have not changed. We are addressing a large low penetrated market opportunity and believe that Avalara is well positioned to deliver durable long-term top line growth of 20 to 25% as we continue to pursue building a global multi-product, multi-billion dollar business. On top of this, we expect the acquisitions of TTR and business licenses to add approximately 30 million in 2021 revenue. This number reflects our early thinking and includes preliminary expectations for deferred revenue write-down. We may refine this number on our fourth quarter conference call. Efficient growth is important to us. In 2020, we have demonstrated our ability to produce positive free cash flow and non-GAAP operating income. However, we believe the momentum in our business, compelling customer economics, and unique position in a large market all support more aggressive investment in 2021. Our early 2021 investment plans result in a non-GAAP operating loss margin. in the low to mid single-digit range and a modest level of free cash flow burn in 2021. This includes additional investments to support our recent acquisitions and enhance our corporate development and integration teams. Thank you for participating in today's call. At this point, we would like to open up the call for your questions.

Thank you. If you would like to ask a question, please press star followed by the number one on your telephone keypad. We ask that you please limit yourself to one question and one follow-up question. Thank you. Your first question comes from Chris Merwin from Goldman Sachs. Please go ahead. Your line is open.

Okay. Thanks so much for taking my question, and congrats on another great quarter. Obviously, a lot going on this quarter, a lot of good things. I wanted to ask about Shopify, actually. So, you talked about converting a Shopify Plus customer to a direct customer. And when we think about that channel, obviously, there's a lot of businesses there. So, can you talk a bit more about the opportunity to create more direct relationships with some of these e-commerce customers, particularly the larger ones, and how that can give you more direct exposure through upsell and, obviously, to be able to cross-sell as well, but more exposure through upsell to the structural growth in that vertical. Thank you.