Payroll Bureau Software: One Input Form for Every Client, Built with AI
With Mythex a payroll bureau can build a client portal where every employer submits hours, starters, leavers and changes on the same form before a visible cut-off, a dashboard of inputs still missing by pay date, and invoicing per employee or per run. Describe your bureau's cycle in chat, check the preview and publish.
The problem is the inputs, not the payroll run
Running payroll is the predictable part. The trouble is everything before it: one client sends a spreadsheet, another a photo of a timesheet, a third an email at 4pm the day before pay day with a new starter and two sickness changes. Each format has to be retyped, and late changes force reruns that nobody bills for. On top of the monthly and weekly cycles sit pension deadlines and year end. Many clients come through accountants who want to know how onboarding is going. A bureau needs one way in for every client's data, a clear cut-off, a status for each pay run and a named backup when someone is on holiday.
- One input form for hours, starters, leavers and changes
- Cut-off date per client per pay period
- Status of every run from inputs received to filed
- Secure upload and download of payslips and reports
- Fees per employee, per run and for reruns
- A backup processor named on every portfolio
What you can build for payroll bureaux
A client portal with one submission form
Each employer logs in to submit this period's hours, overtime, starters with their details, leavers and pay changes on the same structured form, before a cut-off they can see. Payslips, payroll reports and pension files appear in the portal once the run is done, and messages about a run stay attached to it.
Build a client portal for my payroll bureau. Each client sees only their company: a submission form per pay period for hours, overtime, starters, leavers and pay changes with a visible cut-off date, and a downloads area for payslips and reports we upload. Add a message thread per pay run and a staff view of all clients.
Missing inputs at the top, sorted by pay date
A board of every client's next run with status: waiting for inputs, received, processing, approved, paid, filed. Clients past their cut-off with nothing submitted sit at the top so you chase them early.
Make a dashboard for a payroll bureau listing every client's next pay run with pay date, cut-off, status and processor. Put clients past cut-off with no inputs at the top, and show runs due this week.
Fees per employee, per run and for reruns
Invoice each client monthly from the runs processed: a base fee, a per-payslip charge, year-end and pension work, and a line for any rerun caused by late changes.
Create invoicing for a payroll bureau. Each client has a base fee, a per-employee fee and a rerun charge. Generate a monthly invoice from the runs processed with a line for each rerun and its reason.
Portfolios with a named backup
Each processor's clients and pay dates in one calendar, with a backup on every client. When someone books leave, their runs during it are listed with the backup's name.
Build a schedule for payroll staff. Each client has a lead processor and a backup. Show a calendar of pay dates per processor, and when a processor is on leave, list their runs in that period and who covers them.
Accountants who refer clients
Track referring accountants, the clients they sent and each client's onboarding stage, so you can update the accountant without being asked.
Make a CRM for a payroll bureau with prospects, clients and referring accountants. Track onboarding stages from signed to first payroll run and show each accountant's referred clients and their status.
Employee data and access
Payroll inputs include salaries, bank details and identity numbers. Ask for client logins that only see their own company, staff roles for your team, and file storage for payslips rather than email attachments. Decide how long you keep files, and check the data protection rules that apply to you and your clients. Mythex builds the access you describe; it is not a certified payroll engine.
- Each client sees only its own company
- Payslips downloaded, not emailed
- A retention period you set
Switching mid-year, explained
Most new clients are leaving a provider they are unhappy with and worry about year-to-date figures. A page on your website explaining what you need from the old provider and how the first run is checked removes the main reason they put off moving.
Questions
Does Mythex run the payroll calculations?
It builds the portal, tracking and billing around your payroll software. You keep running payroll in the system you use today unless you build and verify calculations yourself.
Can clients upload timesheets?
Yes. Mythex attaches file storage, so clients can upload files alongside the structured form.
Can each client only see their own data?
Yes. Ask for per-client access and every page is limited to the signed-in client's company.
Do I need to code?
No. You describe your cycle and forms in chat and change them by asking.
What does it cost?
Free lets you build and publish with no card. Pro is $25 a month with a custom domain, more credits and code export.
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