Payroll Client Portal for Bureaux, Built with AI
A payroll bureau client portal replaces the spreadsheets, photos and late emails with one form every client fills in before the cut-off, and gives them payslips and reports to download when the run is done. Describe your pay cycles to Mythex and it builds the portal with logins, per-client data and file storage.
Who it's for
Payroll bureaux and accountants running payroll for small employers, who retype inputs from a dozen formats each month and email payslips as attachments.
What you can build
- A submission form for hours, overtime, bonuses and deductions
- Starter details and leaver dates captured in a fixed format
- Cut-off date and time shown on every pay period
- Run status from submitted to processed, approved and paid
- Payslips, payroll summaries and pension files to download
- A message thread on each pay run
Standardise inputs before anything else
The single biggest saving a bureau makes is getting every client to send the same information in the same shape. Build one form per pay period with sections for hours and overtime, one-off payments, sickness and leave, starters and leavers. Pre-fill each client's employee list so they change only what changed. Allow an upload for clients with a timesheet export, but keep the structured form as the main route.
- Employee list pre-filled each period
- Starters with all details your software needs
- Leavers with last working day and final pay notes
A cut-off clients can see
Show the cut-off on the portal home page with a countdown, and lock the form when it passes. Late changes go through a separate 'change after cut-off' request that your team can accept, and that is also where the rerun fee is noted. Clients learn the rhythm within two or three cycles.
Approval and downloads
After processing, upload the payroll summary for the client to approve before payment. Once approved, payslips and reports appear for download, and employees can be sent their own payslips if you add employee logins. Keeping files in the portal is safer than emailing salary details around.
Mistakes to avoid
Do not let clients submit free text for pay changes; it brings back the retyping problem. Do not show one client's files to another through shared links; ask for every page and file to be scoped to the signed-in client. And launch with a few friendly clients for two cycles before moving everyone over.
A prompt to start from
Build a client portal for my payroll bureau. Each employer signs in and sees only their company. Each pay period has a form pre-filled with their employees for hours, overtime, bonuses, sickness, starters and leavers, with a visible cut-off that locks the form. After processing we upload a summary for them to approve, then payslips and reports to download. Add a message thread per run and a staff view of all clients and statuses.
Questions
Can clients only see their own payroll data?
Yes, and it is worth saying in the prompt. Mythex scopes each page and file to the signed-in client, so another company's data cannot be opened by changing a link.
Can the portal connect to my payroll software?
If your payroll software has an API, the portal can connect using your own account keys. Otherwise export the submitted inputs as CSV in the format your software imports.
Can employees download their own payslips?
Yes, if you add employee logins linked to each client. Each employee then sees only their own payslips.
Do I need to know how to code?
No. You describe the form and rules in plain language and change them by chatting.
How much does it cost?
There is a Free plan with no card and daily credits. Pro is $25 a month with more credits, a custom domain, code editing and export.
Templates to start from
- Agency Client Portal Template — PIN-protected views on a Kanban board
- Freelance Invoicing Template — Saved clients with revenue stats
- Quote Generator Template — Line-item pricing, secure client links
- Pet Boarding Site Template — Booking wizard with client dashboard
Guide
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