This tutorial will show you how to create an interactive to-do list in Google Sheets including automatic strikethroughs when you mark tasks complete with a checkmark.
Insert Checkboxes

As shown in the image above, the core functionality of this list will be driven by checkboxes. You can enter them into your spreadsheet by going to the Insert menu and choosing Checkbox. Insert one and then copy and paste it down until you have as many as you want. Add your tasks in the column to the right of the checkboxes.

Conditional Formatting
Now, if you’re like me, when you’re done with the task, you’d love to be able to check it off and get a little strikethrough, right? You can feel like you’re accomplishing something. The strike through will come from using the conditional formatting feature.

After selecting Conditional formatting, a Conditional formatting rules box will appear on the right. Look closely at the picture below. For the range, we have specified C5:C
which will select everything in column C from row 5 and below, assuming that is where you have placed your list of tasks. Once you move out of this input field, you should see that everything in column C starting a row 5 and down to the end of where you have things typed is highlighted.

Watch the Video
Custom formula
Right now, it’s just applying formatting as Cell is not empty because that’s the default choice. Change that by going to the drop down menu below Format cells if… and choosing Custom formula is. Now this box is waiting for a custom formula. Left-click into it to put the cursor in it. Whenever you’re typing a formula, even if it’s in here, you start it with an equals sign. Type the formula =B5=TRUE
. Make sure you don’t use the period at the end. When a checkbox is checked, it changes the value of the cell from FALSE to TRUE. This formula will check for the TRUE state.
If the value is true, we will apply Custom Formatting style. Choose a style to make strike it through and make the background gray so it looks like it’s going away.
If you want to add something else at the bottom, you won’t have to redo this rule because that formatting contains the entire column after C5.
Completed Task List
Pretty easy to put together. Really satisfying to use. Have some fun with it, and let us know how it turns out.
Chelsea says:
Hello,
I’d like to create a function that when a task is completed it is removed from the task list and goes to another sheet for archiving. How can I do this with the current Google Sheets ‘To Do’ list.
Thank you
Prolific Oaktree says:
That sounds like a job that is better suited to a custom script written in apps script as I cannot think of a way to make that work. Certainly I am not the last word on this idea though!
Brandon Richards says:
Instead of creating check boxes all the way down the sheet, is there a way to have Google automatically add a new checkbox to a cell whenever you add a new row? For example, if I added a new task to my to do list, could Google automatically add the checkbox to the appropriate cell so I could check off when it is done? I just think that looks cleaner instead of having a column full of blank check boxes with no other data, or having to manually add a checkbox every time I add a task to my to do list.
Prolific Oaktree says:
I don’t know of a way to do that.
Jeff says:
Hey man, you have great content on this site. I have a Google spreadsheets question that I’m not sure how to explain in a few words… for some reason in my spreadsheet, when I export or look at the print preview, my first set of cells is completely disconnected from the rest and on a whole separate page..I have no idea why. How can I fix this?
Prolific Oaktree says:
Print, Headers and Footers, look to see if you have it set to repeat frozen rows.
Wessel Botes says:
HI Adam,
Im looking for help in setting up our companies gdrive. Any guidance?
Since working remotely with corona, its becoming quite messy.
Wessel
Prolific Oaktree says:
Yeah, watch the YouTube video I made! https://youtu.be/YPbWTG6LM84
Rosie says:
Is there a way to add a reoccurring task in Google Sheets task list?