Rent and bills for the average UK one-bed come to £1,539 a month. What 50/50 vs splitting by income really costs each partner, with survey data and a worked example, every figure sourced.
A couple renting the average UK one-bed pays about £1,539 a month for rent, energy, council tax, water, broadband and a TV licence (EvenRound calculation from official 2026 figures, working below). How they split it matters more than most people think: on salaries of £35,000 and £25,000, a 50/50 split takes 43% of the lower earner's take-home pay but only 32% of the higher earner's.
| Finding | Source |
|---|---|
| 37% of people in a relationship have no joint account | Confused.com/OnePoll, 2,000 adults in a relationship, Feb 2026 |
| 23% split bills in proportion to salary | Confused.com/OnePoll, Feb 2026 |
| 58% argue about money; 48% have lied to a partner about their finances | Confused.com/OnePoll, Feb 2026 |
| 26% of people together 2+ years keep their money separate (about 8.7m adults) | Legal & General/Opinium, 3,000 adults, Jul 2025 |
| 42% split 50/50, 29% say one partner pays most, 25% split by salary | Legal & General, 2,000+ adults (2024 data) |
| 48% think splitting by income is fairest, yet 46% of working couples split 50/50 | YouGov, 1,254 cohabiting Britons (2024 data) |
The gap between what people think is fair and what they do is the story. Where incomes are similar, 69% of couples split 50/50 and it works fine. Where one partner earns a lot more, a quarter still split equally (YouGov).
| Bill | Official figure | Per month |
|---|---|---|
| Rent, UK average 1-bed | ONS, Sept 2026 | £1,140.00 |
| Energy | Ofgem cap Oct–Dec 2026: £1,723/yr | £143.58 |
| Council tax (no single-person discount for a couple) | England average per home 2026-27: £1,868/yr | £155.67 |
| Water | England & Wales average 2026/27: £639/yr | £53.25 |
| Broadband | Ofcom average: £31.05/month | £31.05 |
| TV licence | £180/yr | £15.00 |
| Bills without rent | £398.55 | |
| Total with a 1-bed | £1,538.55 | |
| Total with a 2-bed (ONS £1,287) | £1,685.55 |
Rents vary hugely by region. A one-bed averages £555 in the North East, £705 in the North West, £1,000 in the South East and £1,764 in London (ONS, Sept 2026).
Take-home pay uses 2026/27 income tax and National Insurance for England, Wales and Northern Ireland, with no pension or student loan deductions (GOV.UK rates): £2,393.30 and £1,793.30 a month. Bills are the £1,538.55 one-bed total above.
| Split method | A pays (£35k) | B pays (£25k) | Share of take-home (A / B) | Left over (A / B) |
|---|---|---|---|---|
| 50/50 | £769.28 | £769.27 | 32.1% / 42.9% | £1,624.02 / £1,024.03 |
| By gross salary (58.3% / 41.7%) | £897.49 | £641.06 | 37.5% / 35.7% | £1,495.81 / £1,152.24 |
| By take-home pay (57.2% / 42.8%) | £879.52 | £659.03 | 36.75% / 36.75% | £1,513.78 / £1,134.27 |
Splitting by take-home pay is the only method where both partners give up the same share of what they actually receive. It moves £110.25 a month(£1,323 a year) from the lower earner's bill to the higher earner's. Splitting by gross salary slightly over-corrects, because the higher earner already pays more tax in pounds.
With the average two-bed instead, 50/50 takes 47.0%of the lower earner's take-home pay. Splitting by take-home brings both to 40.3%.
The full-time gender pay gap was 6.8% in April 2026, rising to 11% for people in their 50s (ONS), so in many households the 50/50 default quietly costs one partner more. More on the models in the three money models that work for couples.
Our rent split calculator splits by income in seconds. To track it month to month, start a free group for two on EvenRound: set the default split once, put fixed bills on repeat, and the balance stays honest without a joint account.
Figures checked 30 October 2026. The energy cap changes on 1 January 2027. Free to quote with a link to this page. More in our cost reports.
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