Why does my Google Form require sign-in after adding a file upload question?

Uploaded files are stored in the form owner's Google Drive, and Google requires every uploader to be signed in to a Google account for security and abuse prevention. Adding a file upload question forces this on the whole form, and it cannot be turned off.

How big can file uploads be in Google Forms?

Per question, you can allow a maximum file size of 1 MB up to 10 GB per file, and let respondents upload up to 10 files. The form also has an overall cap on total uploaded storage — 1 GB by default, adjustable up to 1 TB — and everything counts against the owner's Drive storage.

Where do files uploaded through Google Forms go?

They land in the form owner's Google Drive, in an automatically created folder named after the form with a subfolder per file upload question. The response spreadsheet links to each file.

Can people without a Google account upload files to my form?

No. File upload questions require a Google sign-in, and on many Workspace accounts uploads are further restricted to users inside the organization. Respondents without a Google account need an alternative like a shared Drive folder link or an email address to send files to.

File Upload in Google Forms: How It Works + Limits

Updated July 2026 · 7 min read

Quick answer: Add a question and set its type to File upload. Respondents can submit up to 10 files per question, with a per-file size limit you choose (up to 10 GB). Files land in an auto-created folder in your Google Drive and count against your storage. The catch: a file upload question forces every respondent to sign in to a Google account — there's no way around it.

Collecting resumes, homework, photos from an event, receipts for reimbursement — Google Forms can take file uploads straight into your Drive, no email attachments or shared-folder chaos. But the file upload question is the one question type that changes the rules for your whole form: the moment you add it, every respondent must sign in to Google. This guide walks through adding one, the exact limits you're working with, where the files actually end up, and what to do when your respondents can't sign in.

How to add a file upload question

Open your form in the Google Forms editor and click + to add a question.
Change the question type to "File upload." Google immediately shows a warning: files will be uploaded to your Drive, and respondents will be required to sign in. Click Continue.
Configure the rules:
- Allow only specific file types (optional): documents, spreadsheets, PDFs, images, video, audio, presentations, or drawings. Restricting to PDF for resumes or images for photo submissions saves cleanup later.
- Maximum number of files: 1, 5, or 10 per respondent for this question.
- Maximum file size: from 1 MB up to 10 GB per file. Pick the smallest size that fits the job — a 10 MB cap is plenty for documents and keeps your Drive from flooding.
Check the form-wide cap. Below the question, Google shows the maximum total size of all files the form can receive — 1 GB by default, adjustable up to 1 TB. When the cap is hit, the form stops accepting responses until you raise it or clear space.
Test it. Open the form's public link, sign in, upload a sample file, and confirm it shows up in Drive.

The sign-in requirement (and why you can't disable it)

This is the part that surprises people. A form with even one file upload question requires every respondent to sign in to a Google account — including respondents who skip the upload question. Google enforces this because uploads go directly into your Drive: sign-in ties every file to an account, which is Google's abuse and malware accountability layer. There is no setting to turn it off.

Practical consequences:

Your form is no longer anonymous. Even if you don't collect emails, respondents see a sign-in wall and know they're identified to Google. If you need anonymity, file upload is off the table — see our anonymous forms guide.
Response rates dip. A sign-in screen is a real barrier, especially for people on shared or work computers, or anyone who doesn't use Google.
On Google Workspace, it can be stricter still. Depending on your organization's sharing settings, forms with file uploads may only accept responses from accounts inside your organization. If external clients or applicants report they can't open your form, this is usually why — check the form's settings and your admin's external sharing policy, or build the upload form from a personal Google account instead.

Size and count limits at a glance

Files per question: up to 10 per respondent.
Per-file size: your choice, from 1 MB to 10 GB.
Total per form: 1 GB by default; you can raise the cap (up to 1 TB) in the question's settings.
Storage: every uploaded byte counts against your Google Drive quota, not the respondent's. A hundred people uploading a 50 MB video each is 5 GB of your storage — do that math before you set generous limits.
When Drive is full: if your Drive runs out of space or the form hits its cap, the form stops accepting new responses. Watch this on long-running collection forms.

Where the files actually go

Google keeps this tidy. When the first upload arrives, Forms creates a folder in your Drive named after the form (inside a parent folder matching the form's name, with a subfolder per file upload question). Each uploaded file is renamed with the respondent's name appended, so resume.pdf from Jamie Rivera arrives as resume - Jamie Rivera.pdf. The response spreadsheet gets a column with a direct Drive link to each file, so you can review submissions row by row without digging through folders.

Files belong to you the moment they're uploaded — respondents can't retract or edit them after submitting (unless you've allowed response editing), and deleting a response in Forms doesn't delete the file from Drive. Clean up the folder manually when a collection round ends.

When respondents can't sign in: alternatives

If your audience includes people without Google accounts — or your Workspace locks external users out — use one of these instead:

Split the flow. Keep the Google Form for the questions (no sign-in needed), and collect files separately: share a Drive folder with edit access, or have people email files to you. Add a short-answer question like "What file name did you send?" to match submissions.
A shared Drive folder link. Anyone-with-the-link edit access on a folder lets people drop files in without a form — less structured, zero friction.
Dedicated file-request tools. Dropbox file requests and similar services accept uploads from anyone, no account required, then you link the request URL in your form's description.
Smaller payloads, different question. If the "file" is really just a short text (a link to a portfolio, a shared doc URL), a short-answer question asking for a link avoids the whole problem.

Good uses (and one to avoid)

File upload shines for internal and known-audience collection: homework submissions in a school Workspace, expense receipts from teammates, photo collection after a company event, speaker slide collection for a conference where everyone has Google accounts. It's weakest for wide public collection — contest entries or open calls where a sign-in wall costs you submissions — and it's flat-out wrong for anything promised as anonymous.

FAQ

Why does my form suddenly require sign-in?

You added a file upload question. Uploads go to your Drive, and Google requires every uploader to be signed in — it applies to the entire form and cannot be disabled. Remove the file upload question to remove the requirement.

How big can uploads be?

You set a per-file limit between 1 MB and 10 GB, allow up to 10 files per question, and the form has an overall cap (1 GB by default, up to 1 TB). All of it counts against your Drive storage.

Where do uploaded files go?

Into an automatically created folder in the form owner's Google Drive, organized per question, with the respondent's name appended to each file name. The response sheet links to every file.

Can people without a Google account upload files?

No. They'll hit the sign-in wall. Collect their files through a shared Drive folder, email, or a file-request service, and keep the form itself for the questions.