Tax Document Request & Collection Portal: Stop Chasing Clients for Paperwork
Send each client a tailored tax-document checklist, let them upload files through a secure private link, auto-chase what's still missing, and have your preparer accept or request fixes — then export a clean status report and an organized file set.
A secure web portal where you create a per-client tax-document checklist, the client uploads their files through a private link that shows only their own items, the tool tracks received vs. outstanding and sends automated reminders, your preparer accepts each document or requests a correction and marks the package complete, and you export a status report plus an organized file set.
Before you start
- A Supabase account (free)
- A Vercel account (free)
- A Resend account (free)
- Your standard PBC / document checklist (the items you ask every client for)
- A client list with email addresses
- Claude Code or any AI coding agent
The problem this kills
Filing season turns into a paperwork manhunt. You email each client a list of what you need — last year's return, W-2s, 1099s, K-1s, mortgage interest, the closing statement on the rental — and then you spend weeks chasing the stragglers. Documents arrive as reply-all attachments, ZIP files, blurry phone photos, and "see Dropbox" links. Someone has to remember who sent what, which items are still outstanding, and which client got a nudge last Tuesday. Sensitive tax data — Social Security numbers, full account statements — ends up scattered across inboxes, which is exactly where it shouldn't be.
It's slow, it's stressful, and it's risky. The wrong client almost sees another client's file. A document gets accepted that's the wrong year. A return stalls because nobody noticed the K-1 never came. You don't need to live like this, and you don't need to be a developer to fix it.
What you'll build
A secure internal portal. You create a document checklist for each client — the "prepared by client" (PBC) list of everything you need this season — and the tool sends them a private link. The client logs in and sees only their own checklist: each item, whether it's still outstanding, and a simple upload box. They drag in their files (PDFs, photos, scans), the tool matches each upload to a checklist item, and your dashboard updates from "outstanding" to "received." Missing items get automated reminders on a cadence you set, so you stop being the human nag.
When documents land, your preparer reviews each one — accept it, or request a correction with a note ("this is the 2023 W-2, I need 2024"). The client sees the request and re-uploads. Once every item is accepted, the preparer marks the package complete. Then the tool exports a status report (who's done, who's outstanding, what's flagged) and an organized file set — every client's accepted documents, neatly named and foldered, ready to hand to whoever does the return.
What's inside the Implementation Plan
The downloadable plan is a step-by-step file you paste into an AI coding agent. It opens by interviewing you about your business — your standard checklist items, how you name and organize files, which file types you accept, your reminder cadence, who reviews uploads, your typical and peak client volumes, and your messy edge cases (joint filers, a client uploading for three entities, the document that's "not applicable this year") — and then it tailors the data model, the checklist, the validations, and every later step to your answers. This is not a generic template; the agent reflects a short spec back to you and waits for your thumbs-up before it builds anything. From there it walks the agent through the secure per-client links, the upload-and-match flow, the received-vs-outstanding tracker, the automated reminders, the preparer accept/request-fix review screen, and the status report plus organized file export — each step with a ready-to-copy prompt. There's also a fallback so you can build and run the whole thing today even with no integration to your tax software.
The governance it includes (this is the point)
This portal handles some of the most sensitive data your clients have, so it ships with the controls a tax practice needs: login so only your team and the right client can get in, row-level security so every client sees only their own checklist and files and never another client's, a complete audit trail of who uploaded, reviewed, accepted, requested fixes, and completed each item and when, a hard human-review gate so the preparer accepts each document and approves the package before it's ever marked complete, and duplicate guards keyed on checklist item so the same document can't be processed twice. Files live in access-controlled Storage with RLS — not in anyone's inbox.
Who it's for
Tax preparers, accounting firms, and internal finance teams who collect a pile of documents from clients or departments every filing season and are tired of chasing paperwork across email. If you can describe your standard document checklist and how you review what comes in, you can build this.
You've got this — start with the plan, paste the first prompt, answer the interview, and you'll watch your first client checklist go from all-outstanding to all-received the same weekend.