Rental & Salary Sacrifice Scenario Calculator
This calculator models a plan to keep both partners' adjusted net income (ANI) below £100,000, protect eligibility for 30 funded childcare hours, and understand the after-tax cashflow from renting out a property through a managed letting agent.
It brings those moving parts together to estimate extra pension sacrifice needed, expected after-tax rental cashflow, and the break-even rent required for the plan to be sustainable.
UK simplification used (England/Wales/Northern Ireland): retention above £100,000 is treated as 38% in the £100,000–£125,140 band and 53% above £125,140. Planning model only, not formal tax advice.
Employment & childcare
Property
Mortgage & tax assumptions
Cashflow overview
Monthly cashflow after tax
-£359Annual cashflow after tax
-£4,305Taxable rental profit
£19,085Rental income & costs
Gross annual rent after voids
£25,608Agent fee incl. VAT
£3,073Annual service charge
£1,800Insurance and legal (annual)
£450Repairs reserve (annual)
£1,200Mortgage
Computed monthly payment
£1,509Annual mortgage payments
£18,108Annual mortgage interest
£11,760Annual principal repaid
£6,348Tax
Person A taxable profit share
£9,543Person B taxable profit share
£9,543Person A inferred marginal rate
40%Person B inferred marginal rate
40%Person A rental tax
£2,641Person B rental tax
£2,641Total rental tax
£5,282ANI & salary sacrifice
Person A ANI before extra sacrifice
£96,543Person B ANI before extra sacrifice
£93,543Person A extra sacrifice needed
£0Person B extra sacrifice needed
£0Childcare & break-even thresholds
Childcare indifference ANI threshold
£152,398Person A compensation threshold
£147,856Person B compensation threshold
£146,856Break-even monthly rent
£2,901Saved calculations (local browser only)
No saved calculations yet.