2029 Salary Sacrifice NI Planning
Turn the announced £2,000 annual National Insurance exemption into a clear employee answer and an editable workforce cost model, without sending personal salary figures to Plainly.
- Policy date
- 6 April 2029
- Announced exemption
- £2,000 a year
- Planning rates
- 2026/27 tax and NI
- Model data
- Anonymous salary bands
Who is affected, by how much, and what should we communicate?
Employee: compare the same pension sacrifice under current NI treatment and the announced 2029 treatment.
Reward and finance: estimate affected headcount, employee NI, employer NI and cost by editable anonymous cohort.
Communications: give employees a private self-service answer, then measure completion and understanding without collecting their figures.
Salary and contribution first. Payroll detail stays optional.
Bonus exchange is available when relevant. Tax region, code, NI category, loans, payroll frequency and minimum-wage assumptions remain inside advanced settings.
Model the change without employee data.
Use salary-band averages and headcounts. No names, payroll IDs or individual salaries are needed.
Payroll precision
Payroll precision
Payroll precision
Payroll precision
60 of 100 modelled employees are affected
60% of the modelled workforce · +£29,625 employer NI a year
- Employer pension funding change
- No material change
- Total pension funding change
- No material change
- Employer NI change
- +£29,625
- Proposed annual employer cost
- £6,331,750
- Employee NI change
- +£5,000
- Combined employee take-home change
- −£5,000
Annual change by anonymous salary band
| Band | People | Employer cost | Employee NI | Employer pension | Total pension funding |
|---|---|---|---|---|---|
| Operations£30,000 average | 40 | No material change | No material change | No material change | No material change |
| Professional£50,000 average | 35 | +£2,625 | +£1,400 | No material change | No material change |
| Senior£75,000 average | 20 | +£15,750 | +£2,100 | No material change | No material change |
| Leadership£120,000 average | 5 | +£11,250 | +£1,500 | No material change | No material change |
| Total | 100 | +£29,625 | +£5,000 | No material change | No material change |
What is and is not included
Announced 2029 treatment: the first £2,000 of annual pension salary sacrifice is modelled as NI-exempt and the excess as employee and employer NI-able. The annual exemption is allocated proportionally for planning.
Included: contractual salary, configured employer pension funding, shared employer NI saving and estimated employer Class 1 NI using 2026/27 rates.
Excluded: Employment Allowance, Apprenticeship Levy, directors’ annual methods, irregular payroll, benefit changes, opt-out behaviour, implementation fees and employee-level payroll validation.
A decision pack, not just a calculator.
The editable model exports a finance-ready CSV and a printable planning report. A paid pilot adds approved configuration, branded employee delivery, acceptance testing and a close-out report using aggregate, value-free engagement evidence.
- Decision evidence
- Affected headcount, employee NI, employer NI and annual cost
- Communication evidence
- Started, completed, understood and next-step counts
- Governance evidence
- Calculation contract, official sources, assumptions and exclusions
Useful now, honest about what is not final.
This is an annual planning model of announced policy using 2026/27 rates. Final 2029 rates, payroll reporting and pay-period allocation remain subject to legislation and HMRC guidance. It is not payroll advice or an employee-level payroll acceptance test.
Launch one governed 2029 planning campaign.
One employer, one approved configuration and one 30-45 day campaign, including the employee journey, anonymous workforce model, implementation support and evidence report.