Every quarter, the same small indignity: a practice that stewards eight figures sends its clients their review materials as PDF attachments in a plain email. Weeks later comes the reply — "could you resend that? I can't find it" — and in March the whole ritual runs in reverse, with K-1s and 1099s trickling back through inboxes where sensitive documents don't belong.
There's a quieter leak, too. Every review ends with agreements — fund the 529, update the beneficiary, roll the old 401(k) — and those action items live in your meeting notes, invisible to the client until the next sit-down, when half of them resurface untouched.
Advisor portal platforms address all of this, at enterprise pricing on enterprise implementation timelines. But if your book already lives in a spreadsheet — households, review dates, links to reports — you can turn that sheet into a private, login-protected page per household and give the practice a front door that matches the caliber of the work.
One row per household on the master tab:
| Client | Household | Last review | Next review | Report link | Action items | Docs requested | Portal user |
|---|---|---|---|---|---|---|---|
| Priya Raman | Raman–Choi | Apr 14 | Oct 12 | Q2 letter (Drive) | Fund 529; update beneficiary | 2025 K-1 | praman |
| Walt Jensen | Jensen | May 2 | Nov 6 | Q2 summary (Drive) | Roll over old 401(k) | Trust amendment | wjensen |
Then a tab per household: the document vault (statements and reports you post, plus space for whatever they send you), the running action-item list, and their review history. The Portal user column supplies each household's credentials.
Sign up at lovespreadsheets.com; building costs nothing. Private client logins and hosting on your own domain are the paid features — non-negotiable for an advisory practice, but you can construct and refine the entire portal before paying for either.
Choose the Website template, then describe the portal the way you'd describe it to a compliance-minded colleague:
"Each household in my master sheet gets a private page. It shows their latest review letter, a document vault where I post statements and they can upload tax documents to me, the action items we agreed to — visible to both of us, with status — and their next review date with a way to request a meeting time."
Three additions worth writing in:
Run AI Optimize over the description if you want it sharpened, answer any clarifying questions the AI raises, and the build itself takes 15 to 20 minutes.
Every household receives a unique URL. Set the site to Private in the Share menu and add usernames straight from the sheet. Passwords are stored only in hashed form, and a household's login resolves exclusively to that household's page — the Ramans cannot reach the Jensens' vault, or discover it exists. Add the firm's logo and palette, put it on clients.yourfirm.com, and the quarterly attachment is replaced by "it's posted in your portal."
Documents travel back to you the same way. When a client drops in a K-1, it appears in their household's tab, not an inbox thread. When you mark an action item complete in the sheet, their page shows the progress before your follow-up call.
Discretion is structural, not procedural. Separation between households isn't a policy anyone has to remember to follow; it's how the pages are generated in the first place.
The quarterly packet becomes a standing page. You update one row — new letter link, new review date — and that household's portal is current. Twelve households or sixty, the effort is identical.
Agreed actions stay in view. An item both parties can see is far more likely to get done than one buried in meeting notes — and the visible follow-through is itself client service.
Is a spreadsheet-backed portal appropriate for sensitive material? You control precisely what the sheet exposes — many advisors keep account numbers and balances out entirely and use the portal for documents, dates, and action items. Logins are private, and passwords are never held as plain text.
Can clients send documents to me through it? Yes. Anything a household uploads lands in their tab of your sheet, which turns tax season's inbox scavenger hunt into an orderly checklist.
How much upkeep does it demand? Only the sheet edits you already make: log a review, paste a report link, add an action item. The portals stay current with whatever the sheet says.
Your book of clients is probably already a spreadsheet. Bring it to lovespreadsheets.com, pick the Website template, and describe what a household should see behind its login. Next quarter's reviews can go out as a login, not an attachment.
The team turning other people's spreadsheets into software they actually trust — one sheet at a time.