← Registerthis MPall MPs (258) Work expenses — reported by IPEA Remuneration composition — modelled Expenditure by category (reported by IPEA)
Senate · Jan-Mar 2026
Simon Birmingham
Liberal Party of Australia · SA
Salary, super & work expenses · Jan-Mar 2026
Modelled estimate-$67+$82,036reported + modelled
Excludes electorate-office staff salaries (MOPS Act) and office accommodation — typically several hundred thousand to over $1M per office per year.
Rank by expenses
256th / 258
-100% vs median
Reported · IPEA
Expenses this quarter
-$67
Quarters on record
36
Modelled · Remuneration Tribunal
Salary & allowances
$73,040
Includes allowances
Superannuation
$8,996
15.4% of base + loading
Role this quarter: BackbencherLargest category: Office Administration (-$67)
Expenditure figures sourced from IPEA quarterly release (Jan-Mar 2026). View source. See methodology for how salary & super are modelled.
Quarter-over-quarter
Expenditure by category
Remuneration breakdown
Quarterly breakdown (Jan-Mar 2026)$82,036
| Base salary | Standard backbench rate (annual ÷ 4) | $58,415 |
| Electorate allowance | Electorate office and operations | $9,750 |
| Vehicle allowance (cash-in-lieu) | Remuneration Tribunal vehicle entitlement | $4,875 |
| Superannuation | 15.4% of base + loading (accumulation) | $8,996 |
| Total remuneration & super | $82,036 | |
Note: Auto-applied Backbencher (2025-26); quarterly = annual / 4
How is this modelled?▾
Modelled from Remuneration Tribunal determinations. Best-effort approximations, not IPEA-reported amounts.
- Vehicle entitlement
- All members modelled as taking the $19,500/yr cash-in-lieu allowance. IPEA car/COMCAR lines are treated as separate travel costs.
- Electorate allowance
- Baseline rate ($39,700/yr) applied for all representatives; geographic scaling not yet modelled.
- Committee loadings
- Additional loadings for committee chairs, whips and minor office holders are currently untracked.
- Mid-quarter transitions
- Modelled on the most recent active role within the quarter (known approximation).
Full detail on the methodology page.
Expenditure detail
Office Administration
-$67| Office Consumables and Services | IPEA | -$66.98 |
Related parliamentarians
Same party and chamber, ranked by expenses this quarter.
- Michaelia CashLiberal Party of Australia · WA$226,541
- Ben SmallLiberal Party of Australia · FORREST$188,146
- James McGrathLiberal Party of Australia · QLD$179,500
- Jane HumeLiberal Party of Australia · VIC$150,004
- Wendy AskewLiberal Party of Australia · TAS$146,072
- Paul ScarrLiberal Party of Australia · QLD$145,593