True cost of buying a £400,000 home in the UK in 2026
A £400,000 home sits in the busiest band of the post-April-2025 stamp duty regime: above the £300,000 first-time-buyer nil-rate threshold but still inside the £500,000 first-time-buyer cap, and squarely on the standard 5% slab. In 2025, 6,338 UK sales completed at exactly £400,000, against 1,088 in the £400,001–£404,999 deadzone immediately above (HM Land Registry pp-complete, queried 10 May 2026) — a familiar bunching pattern as buyers and sellers anchor at the round number.
This guide breaks down what that £400,000 actually costs to buy and run, using a worked example in Birmingham — a city where the £350,000–£450,000 band saw 2,563 completed transactions in 2025 across the B postcode area.
Up-front costs at a glance
| Cost | Standard buyer | First-time buyer | Additional property |
|---|---|---|---|
| Deposit (10%) | £40,000 | £40,000 | £40,000 |
| Stamp Duty Land Tax | £10,000 | £5,000 | £30,000 |
| Conveyancing fees | £1,200–£2,000 | £1,200–£2,000 | £1,500–£2,500 |
| Searches & disbursements | £300–£500 | £300–£500 | £300–£500 |
| Mortgage arrangement | £0–£1,500 | £0–£1,500 | £0–£1,995 |
| Survey (Level 2 HomeBuyer) | £400–£900 | £400–£900 | £400–£900 |
| Removals & day-one costs | £600–£1,500 | £600–£1,500 | £600–£1,500 |
Stamp duty figures are calculated against the post-1-April-2025 SDLT bands (HMRC, residential rates table). Conveyancing, survey and removal ranges are typical 2026 figures from Money Saving Expert and Which? guides, not Homecost data.
Stamp Duty: how the £400,000 number breaks down
Since 1 April 2025, the standard SDLT nil-rate band returned to £125,000, the FTB nil-rate to £300,000, and the FTB cap to £500,000 (HMRC). A £400,000 purchase therefore lands inside three distinct buyer scenarios:
| Buyer status | Tax due | Effective rate | Where it falls |
|---|---|---|---|
| Standard, England & NI | £10,000 | 2.50% | £125k×0% + £125k×2% + £150k×5% |
| First-time buyer | £5,000 | 1.25% | £300k×0% + £100k×5% (under the £500k cap) |
| Additional property (England) | £30,000 | 7.50% | Standard £10,000 + 5% surcharge on full price |
Figures verified against the Homecost SDLT calculator on 10 May 2026 and cross-checked with the HMRC SDLT residential rates page.
A first-time buyer at £400,000 still pays £5,000 because relief tapers between £300,001 and £500,000 — the band is taxed at 5%, not 0%. Above £500,000 FTB relief disappears entirely, which is why a £499,950 listing now usually sells nearer £499,500 to stay inside the cap; the £500,000 stamp duty cliff edge sits one bracket above this guide and shows the bunching pattern in detail. For a fuller walk-through of the relief mechanics, see our piece on first-time buyer stamp duty relief.
Mortgage payments at today's rates
The Bank of England's most recent quoted-rate file (April 2026) puts the average advertised 75% LTV 5-year fix at 4.32%, down from 4.51% in November 2025. Monthly payments at that rate, with a 25-year capital-and-interest term:
| Deposit | Loan amount | Monthly payment | Year-1 payments |
|---|---|---|---|
| 10% (£40,000) | £360,000 | £1,964 | £23,573 |
| 15% (£60,000) | £340,000 | £1,855 | £22,261 |
| 20% (£80,000) | £320,000 | £1,746 | £20,954 |
| 25% (£100,000) | £300,000 | £1,637 | £19,644 |
| 40% (£160,000) | £240,000 | £1,309 | £15,715 |
Calculations use the standard amortising mortgage formula at the BoE 75LTV5Y April 2026 rate. Real offered rates depend on lender, credit profile, term length and product type. Speak to a qualified mortgage broker before acting.
A £320,000 25-year loan at 4.32% would, if held at that rate for the full term, return a total interest bill of about £203,800 — more than half the mortgage value again. In practice rates almost always change at remortgage (typically every 2–5 years), so the figure is an illustrative ceiling rather than a forecast.
For a cluster comparison, see the monthly cost of a £200,000 mortgage — useful if you are deciding between buying at the lower end of the £400k bracket with a 50% deposit, or stretching to a £400,000 home with a smaller down-payment.
Year-1 running costs: a £400,000 Birmingham worked example
Take a 90 m² Edwardian terraced house in B17 (Harborne) — a popular family-buyer postcode where the 2025 average sale price was £378,438 across 314 transactions, with the upper third of those sales clustering between £400,000 and £450,000.
A standard buyer with a 20% deposit and a 25-year fix at 4.32% would face the following Year-1 picture:
| Item | Year-1 cost | Source |
|---|---|---|
| Mortgage (interest + capital) | £20,954 | BoE 75LTV5Y April 2026 |
| Council tax (Band D, Birmingham 2026-27) | £2,363 | gov.uk council tax data |
| Energy (typical 3-bed, EPC D) | ≈ £1,800 | Ofgem Default Tariff Cap, current period |
| Buildings & contents insurance | £350–£500 | ABI 2025 average |
| Maintenance reserve (1% of value) | £4,000 | Standard household budget rule |
| Total annual running cost (excl. SDLT/upfront) | ≈ £29,500–£29,700 |
Council tax in Birmingham (£2,362.90 for Band D in 2026-27) is around 10% above the average for West Midlands billing authorities — Solihull a few miles south is £2,197.26 and Sandwell is £2,244.46 (gov.uk council tax band data, 2026-27 file). A buyer choosing between B91 (Solihull) and B17 (Birmingham) for the same property type would see an annual £165 council tax delta — about £4,150 over a 25-year ownership horizon.
Energy is the biggest Year-1 unknown. EPC certificates in B postcodes are dominated by D ratings (218,478 of 466,476 certificates on file, or 47%), with another 22% rated C and 21% rated E. The EPC dataset's modelled annual energy cost reflects the assessor's assumptions at the time of inspection, not 2026 consumer prices; the figure used above is keyed to the current Ofgem cap for typical medium-use households.
For a deeper look at the running-cost variance between EPC ratings, see energy cost by EPC rating for a 3-bed semi.
Where £400,000 buys what in Birmingham
Drawing on the 2025 HM Land Registry pp-complete file (queried 10 May 2026), here is what the £400,000 budget delivers across the B postcode area, ranked by 2025 average sale price:
| Postcode | 2025 sales | Average price | What £400k typically buys |
|---|---|---|---|
| B91 (Solihull) | 465 | £507,234 | A semi-detached, mid-spec |
| B74 (Sutton Coldfield) | 442 | £486,637 | A 3-bed semi, 1930s stock |
| B15 (Edgbaston) | 149 | £421,494 | A flat in a converted villa |
| B1 (city centre) | 237 | £397,416 | A larger 2-bed apartment |
| B17 (Harborne) | 314 | £378,438 | A 3-bed terrace, period stock |
| B13 (Moseley) | 329 | £334,659 | A 4-bed semi or larger terrace |
| B30 (Cotteridge) | 384 | £285,004 | A detached 4-bed |
Source: HM Land Registry Price Paid data, 2025 transactions, queried 10 May 2026. Figures cover all property types and tenures; "what £400k typically buys" is a qualitative summary, not a valuation guide.
How this scales to other price points
The £400,000 bracket sits between two well-documented points in the SDLT regime: the £300,000 first-time-buyer nil-rate threshold below, and the £500,000 first-time-buyer cap above. Cross-reference with our companion guides:
- True cost of buying a £300,000 home in the UK — entirely SDLT-free for first-time buyers
- True cost of buying a £500,000 home in the UK — last point at which FTB relief is still claimable
- Hidden costs of buying a house in the UK — the line items that catch out almost every first-time buyer
- Browse all Cost Intelligence guides
For the data behind these calculations — 30.98 million Land Registry transactions, 29.21 million EPC certificates, and the 2026-27 council tax file for all 296 English billing authorities — see our blog index.
What to do next
Type your target postcode into the Homecost postcode tool to see the True Cost panel for actual properties on the street, including stamp duty calculated against your buyer status, mortgage payments at the latest BoE rate, council tax for the relevant local authority, and modelled energy cost from the property's EPC certificate.
This article is general information, not advice. Stamp duty calculations depend on the conveyancer's confirmation of buyer status; mortgage rates depend on the lender's offer; council tax bands are the responsibility of the Valuation Office Agency. Speak to a qualified adviser — solicitor, conveyancer, mortgage broker — before acting on any of these figures.
Based on 30.98 million HM Land Registry Price Paid transactions, 29.21 million EPC certificates, and the gov.uk 2026-27 council tax band-D file for all 296 English billing authorities. Data queried on 10 May 2026.