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HMO calculator

Letting by the room can lift income, but you pay the bills and carry more compliance. Enter your rooms and costs to see what a house share really makes, and how many rooms you need let to break even.

Property

On if you already own a home. Most investors pay the higher rates.

£15,000

Rooms

1 to 10 rooms

Used for every room unless you set one below.

Set rents room by room (£2,750 a month in total)
Bills you pay

Gas, electricity and water

Licensing and running costs

£220 a year

Fire safety, gas and electrical checks

Of rent collected

Of annual rent

Room-time empty

HMO mortgage

£187,500 loan

Interest-only

Gross
13.2%
Net
6.3%
Cash flow
£573/mo
All results

Results

Gross yield

13.20%

£33,000 a year from 5 rooms, as a share of the price.

Net yield

6.32%

What's left after bills, licensing, management and voids.

Monthly cash flow

£573

£6,877 a year after every cost and mortgage interest.

Cash-on-cash return

6.9%

Annual cash flow on the £99,500 you put in.

Break-even occupancy

3.4 rooms

Let at least 4 of 5 rooms (68%) to cover costs.

Per-room contribution

£115

Monthly cash flow for each room in the house.

Interest cover ratio

293%

How comfortably the rent covers the mortgage interest.

At your rate (6%)

293%

  • 125% pass
  • 145% pass

Stressed (+2 points) (8%)

220%

  • 125% pass
  • 145% pass

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