Payroll Management
Salary calculations, NI, and RTI tracking for directors
Manage employee payroll with gross-to-net salary calculations, income tax, and National Insurance breakdowns. Director-specific NI calculations including alternative method selection. RTI submission tracking to keep HMRC filings on schedule.
Free during Early Access - No credit card required
Capabilities
Gross-to-net salary calculations with income tax and NI deductions
Employee management with tax codes, NI categories, and pension enrolment
Director-specific NI calculations with annual or pro-rata method selection
Student loan and postgraduate loan deduction support
Workplace pension contribution calculations
RTI submission tracking for FPS and EPS filings
Payslip generation with full breakdown of deductions
Year-to-date cumulative tracking for each employee
How It Works
Add your employees
Enter employee details including tax code, NI category, and pay frequency. For directors, select the NI calculation method.
Run payroll
Enter gross pay for the period. AccountsOS calculates income tax, NI (employee and employer), pension, and student loans automatically.
Review and approve
Check the payslip breakdown for each employee. Confirm the net pay and deduction amounts are correct.
Track RTI submissions
Mark your FPS as submitted to HMRC. Track which periods have been filed and which are pending.
Use Cases
Solo director payroll
Pay yourself the optimal salary each month with correct tax and NI deductions. Choose between annual and pro-rata NI methods for directors.
Small team payroll
Run payroll for a handful of employees with different tax codes, pay frequencies, and pension arrangements.
Director NI planning
Compare the annual cumulative method versus the standard method for director NI. The right choice can save hundreds per year.
RTI compliance
Never miss an RTI filing deadline. Track which Full Payment Submissions and Employer Payment Summaries have been filed with HMRC.
Benefits
Run payroll confidently without outsourcing to a bureau
Get the director NI method right — this is where most software fails
Stay compliant with RTI filing deadlines every pay period
See exactly where every pound of salary cost goes
Reduce payroll costs compared to third-party services
Keep a complete audit trail of all payroll calculations
Frequently Asked Questions
What is the difference between director NI methods?
Directors can use the annual cumulative method (NI calculated on total annual earnings against annual thresholds) or the standard pro-rata method. The annual method can result in different NI amounts — AccountsOS lets you choose and compare.
Does AccountsOS submit RTI to HMRC?
Currently, AccountsOS calculates payroll and tracks RTI submissions. You submit the FPS and EPS through your existing HMRC channel. Direct RTI submission is on our roadmap.
How are tax codes handled?
Enter each employee's tax code from their P45 or HMRC notice. AccountsOS applies the correct tax calculation including cumulative and week-1/month-1 bases.
Is workplace pension auto-enrolment supported?
Yes. Set up pension contribution rates for employee and employer. AccountsOS calculates the deductions and includes them in the payslip breakdown.
Can I run payroll for different frequencies?
Yes. Support for monthly, weekly, fortnightly, and four-weekly pay frequencies. Each employee can have a different pay schedule.
What about student loan deductions?
AccountsOS supports Plan 1, Plan 2, Plan 4, and Postgraduate loan deductions. Enter the loan type for each employee and the deduction is calculated automatically from the correct threshold.
Ready to try Payroll Management?
Get started with AI-powered accounting for your UK limited company.
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