Every pay change, typed once.
overlap one spots payroll changes in HR's email, checks them against BambooHR, and prepares the form, the letter and the holiday sum.
Your team checks and approves. That's all.
Today Fri 30 Oct
Works with
places each pay change is typed
steps prepared from one email
changes made without a person approving
of pay and holiday sums done in code, never by the AI
Most software makes your team fit the system. overlap one fits the system to your team. The overlap is where the hours come back.
Why it’s called overlap
Pay changes are copied by hand into five places.
A manager emails HR. HR retypes the facts into BambooHR, the payroll form, a letter, the holiday sum and the payroll log, all before a monthly deadline.
A change of hours today by hand
- 1Manager emails HROften missing the days or the datewaits
- 2HR chases the detailsBack and forth by emailwaits
- 3Typed into BambooHR and the payroll formretyped
- 4Letter written from a templateretyped
- 5Holiday worked out on a calculatorretyped
- 6Added to the payroll logretyped
Typed five times and easy to miss a step
With overlap one HR checks and approves
- 1Manager emails HRJust as now
- 2overlap spots it and asks only what's missingminutes
- 3HR approves onceone click
- 4Form, letter, holiday and log are ready to checktyped once
On time and complete every step in one list
Changes arrive late or half finished.
A change that misses the deadline means back pay or a recovery next month.
The same facts, typed again and again.
Salary, hours and dates are retyped for every system and document.
The know-how sits with one or two people.
When they're away, the month waits.
Four things get better.
Paid right first time
Changes reach payroll complete, so fewer need correcting.
The problem ›Hours back every month
Forms, letters and holiday sums are prepared for HR to check.
Work out the return ›Less rests on one person
Your process is built in, so anyone in the team can pick up the month.
See it work ›Safe with staff data
A person approves every change, and staff data never goes to an AI company.
The safeguards ›Built for how charities pay people.
The parts of charity HR that make payroll harder are built in from the start.
Pay checked against the Real Living Wage
Anyone whose hourly rate falls below it is flagged, with what closing the gap would cost.
DBS and safeguarding, followed up
Update Service checks, and safeguarding training due or overdue.
Volunteers kept off payroll
Volunteers, students and contractors are left out of payroll checks.
Staff paid in other currencies
Overseas staff are paid in their own currency, shown on every figure.
Reports ready for trustees
A board report in Word in a couple of clicks, names left out by default.
One change, start to finish.
A manager emails to say Sam is dropping to 21 hours. Here's what happens next.
Which days will Sam work?
overlap spots payroll changes in everyday email from your managers, like new hours, pay rises, starters and leavers, and flags them for HR.
- Hours
- 35
- →
- 21 a week
- Salary
- £24,500
- →
- £14,700
- From
- 1 November 2026
- Days
- Mon to Fri
- →
- Mon, Tue, Wed 7h
Nothing changes until someone in HR presses Approve.
Filled in your team's layout and sent through your usual approvals in BambooHR.
30 October 2026
Dear Sam,
I am writing to confirm the change to your contract. From 1 November 2026 your hours will be 21 hours per week, worked Monday to Wednesday, and your salary will be £14,700 a year.
All other terms stay the same.
Signed in your order
Your own templates, finished in one font, then signed in BambooHR.
Nov to Aug on 21 hours: 231 × 21⁄35 × 10⁄12 = 115.5
Adjustment to approve: −77 hours
| Bank holidays | Fri 25 Dec | Mon 28 Dec | Fri 1 Jan |
|---|
Bank holidays are booked only on the days each person works.
Saved to the payroll folder
Every figure is worked out in code, with the working shown.
The rest of HR's month, in one place.
Ask overlap
Answers about people, absence, pay and policy, from BambooHR and your own policies.
Reports for the board
Headcount, turnover, absence and pay, with the working behind every figure.
Follow-ups and legal checks
Right to work, DBS, probation, long service and training, each with a tick when it's done.
Reminders and meetings
The monthly reminder to managers, and the meetings to book, ready for HR to send.
Built for staff data and payroll.
A person stands in front of every step that matters.
A private AI
The AI runs on a server of your own, in your office or the cloud. Staff data never goes to an AI company.
A person approves every change
Changes to BambooHR also need the HR approver's PIN.
Numbers by code, not AI
Pay, pro rata and holiday are worked out in code, with the working shown.
Bank details never pass through
They're taken out of emails, a common route for payroll fraud.
Your approvals stay in place
BambooHR's own approval chain is kept, and its settings are never changed.
Everything is logged
Sign-ins, approvals and every email sent, in an audit log on your computer.
Time back for HR, every month.
The starting figures are an example for an organisation of about 250 staff. Change any of them and the totals follow.
| Task | Each year | Mins now | Mins with it | Hours saved |
|---|
hours a year back for HR
working days of 7 hours
of a full-time post
value of the time a year
payback, once a cost is added
Try it on one payroll month.
Run a month in overlap one alongside your usual way, then compare.
Connect BambooHR
Read only to start. overlap one builds its private copy overnight.
Work one month in it
Changes, forms, letters and the payroll check, alongside your usual way.
Compare
The time it took, and the changes that needed putting right.
Questions people ask.
Does our staff data go to an AI company?
No. The AI model runs on a computer in your office. Staff data stays there, and the model is never trained on it.
Will it change BambooHR on its own?
Never. Every change waits for someone in HR to approve it, and changes written to BambooHR also need the HR approver's PIN. Payroll forms go through BambooHR's own approvals as they do now.
Do managers need to change how they email HR?
No. overlap spots payroll changes in everyday email from the managers you choose, like new hours, pay rises, starters and leavers, and asks HR about anything missing.
Does it replace our payroll software?
No. Tax, National Insurance, pensions and statutory pay stay in your payroll software. overlap one makes sure the changes reach it complete and on time.
Can the AI get pay or holiday figures wrong?
The AI never works out pay or holiday. Those are done in code, with the working shown, and HR checks them before anything is approved.
What do we need to run it?
BambooHR, and Microsoft 365 if you'd like it to work with Outlook and Teams.
Can the whole HR team use it?
Yes. Each person signs in with their own PIN, on the office computer or from their laptop on the office network. Every action is in the audit log.
What about bank detail changes?
They never pass through overlap one. Bank details are taken out of emails, and a change is only prepared after HR has phoned the employee on a number already on file.