Free AccountGrade tool
Estimate payroll, employer cost, and invoice totals in one place
Try a monthly UK payroll scenario, then see how the same numbers flow into a draft invoice preview. This is a non-filing demo for planning and product exploration.
Interactive calculator
Model a payroll run before you build the real one
Change the gross pay, tax code, student loan, and invoice treatment to see how the estimate updates across payroll and invoicing.
Uses 2026/27 starter payroll assumptions Keeps invoice totals separate from net pay
Scenario inputs
2026/27Net pay£2,303.30
Employer cost£3,477.50
PAYE tax£390.50
Total due on invoice£4,173.00
Draft payslip preview
Demo| Gross pay total | £3,000.00 |
|---|---|
| Employee NI | £156.20 |
| Employee pension | £150.00 |
| Total deductions | £696.70 |
| Net pay | £2,303.30 |
Invoice preview
2026-08-02| Subtotal | £3,477.50 |
|---|---|
| VAT | £695.50 |
| Total due | £4,173.00 |
Demo calculation only. Not HMRC-recognised payroll output and not an RTI filing.