Here's what you need to do in TurboTax Free for tax year 2017:

1. From the navigation menu across the top of your screen, select Income and then T-Slips.
2. On the Income Slips step, check T4 - Employment income, if it's not already checked.
3. Check I worked in Quebec and received a Relevé 1.
4. Then, select Continue to navigate to the T4 - Summary step.
5. On the T4 - Summary step, select Edit on the slip you have an RL-1 for.
6. On the T4 slip, scroll down until you locate Box E and enter your amount.

There is no checkbox to check for the releve 1. Did all your steps and I cant see it on 2019 version. Am I blind? 

@jessyearch,

To enter your Releve 1 when you do not reside in Quebec, in the Free version of TurboTax Online, from the sidebar, go to;

• Income
• T-Slips
• T-Slip Summary
• Check the box - I worked in Quebec and received a Relevé 1 slip

Continue to the T4 Summary page and choose to "Add T4". Enter your T4 choosing QC as your Province of Employment. Box E of the Releve 1 is entered near the bottom of this screen. 

THANK YOU

So helpful! Was looking for hours how to fix this

The equivalent to an RL-1 is a T4a. Ran into this problem today. 

What do I put into the box 10, ON or QC