A property bought for £200,000 and sold after renovation for £260,000 appears to contain £60,000 of profit. That number is attractive because it is visible, simple and wrong. It is the spread between two prices, not the return on the project, and the costs sitting between those two figures have become large enough to change the economics of flipping across much of the market.
The wider evidence now bears that out. Hamptons’ analysis of Land Registry transactions found that just 1.5% of homes sold in England and Wales in 2025 had been bought within the previous twelve months, the lowest share in more than a decade and down from 2.0% in 2024. The number of these fast resales had roughly halved from 2016 to 10,570. That measure identifies properties resold within twelve months rather than proving that every one underwent refurbishment, but it is the best current market-wide proxy for flipping activity. More strikingly, the average post-SDLT gross profit — sale price less purchase price and stamp duty, but before renovation, finance and most other costs — had fallen to £16,390, 55.1% below its 2015 level. Hamptons’ 2026 analysis of home flipping
That does not mean renovation-and-resale has stopped working. Hamptons’ data also show that outcomes vary sharply by purchase price and region. It means the strategy has become much less forgiving: a deal now needs enough discount, enough genuinely value-adding work and enough margin for tax, finance and delay before the investor starts. The question is no longer whether £200,000 can become £260,000. It is how much of that £60,000 survives after the property has been bought, financed, improved, held and sold — and whether the return left over is enough for the risk and capital involved.
The worked deal: a £60,000 spread becomes a loss
Take a deliberately simple property bought for £200,000 and expected to sell for £260,000 after renovation. The example assumes a purchase in England or Northern Ireland on which the higher residential rates of Stamp Duty Land Tax apply — as they commonly will for an additional-property purchase and for many company acquisitions. Scotland and Wales use different transaction taxes, so the same project there would need to be modelled separately.
At £200,000, the current higher-rate SDLT bill is £11,500: 5% on the first £125,000 and 7% on the remaining £75,000. HMRC’s higher rates of SDLT Add an illustrative £1,800 for the buyer’s conveyancing, searches, survey and related purchase costs and £13,300 has disappeared before a builder arrives. The £11,500 should not be treated as universal — an individual’s circumstances can alter whether the higher rates apply — but it is the correct tax assumption for this worked case.
Finance is the next distortion in the headline margin. Short-term bridging is widely used where speed matters or the property is unsuitable for an ordinary mortgage in its existing condition. Bridging Trends’ Q2 2026 contributor data put the average completed-loan monthly interest rate at 0.81%, with an average term of twelve months; investment-property purchases were one of the joint most common uses of bridging finance. Bridging Trends Q2 2026 Using that 0.81% rate on a £150,000 loan for nine months gives £10,935 of simple illustrative interest. Add an assumed 1.5% arrangement fee of £2,250 and the model carries £13,185 of finance cost before lender valuation, lender legal fees, broker fees, possible exit charges or any cost created by extending the facility. Actual bridging structures vary — interest may be serviced, retained or rolled up and fee bases differ — so this is a worked cash-cost assumption rather than a quote for a particular facility.
The refurbishment is budgeted at £35,000, with a 15% contingency that is actually spent, taking the works to £40,250. That £35,000 is assumed to be the all-in cash cost of the planned works, including VAT where it is chargeable. That qualification matters because most building work to existing houses and flats is standard-rated at 20%, although qualifying renovation or alteration of some residential property that has been empty for at least two years can attract the 5% reduced rate. HMRC guidance on VAT for building work A contractor quote that looks affordable before VAT but is not actually VAT-inclusive can destroy a renovation budget before any unexpected structural work is found.
Holding costs then continue for as long as the project does. The example allows £300 a month for council tax, utilities and suitable buildings insurance, or £2,700 over nine months. The figure is deliberately illustrative because empty-property council tax and insurance depend on the property and local authority. It also assumes no major planning application, Party Wall award, structural-engineer programme, architect’s fees or unusual Building Regulations cost; if the project needs them, they belong in the appraisal rather than being treated as an inconvenience discovered later.
Selling the finished property creates the last obvious deduction. An agency fee of 1.5% plus VAT is an effective 1.8% of the sale price, so on £260,000 the fee is £4,680. Add £1,200 of sale conveyancing and the disposal costs £5,880.
| Illustrative £200,000 flip | Cost |
|---|---|
| Purchase price | £200,000 |
| Higher-rate SDLT, legal, searches and survey | £13,300 |
| Bridging interest and 1.5% arrangement fee | £13,185 |
| Refurbishment including 15% contingency spent | £40,250 |
| Nine months of holding costs | £2,700 |
| Estate agency at 1.5% + VAT and sale legal fees | £5,880 |
| Total project cost | £275,315 |
| Sale price | £260,000 |
| Result before tax | –£15,315 |
The £60,000 spread has therefore become a £15,315 loss before tax, and even this version does not include every possible finance or professional fee. That is not evidence that every £200,000 property selling for £260,000 is a bad flip. It is evidence that purchase price and resale price are the least complete numbers in the appraisal.
The useful number is the break-even sale price, not the gross spread
Once the costs are modelled properly, the deal can be looked at in the direction experienced operators usually care about: backwards from the exit. With the assumptions above, and allowing the agency fee to rise with the sale price, the project needs to sell for roughly £275,600 merely to get back to a pre-tax break-even position. The apparently healthy £60,000 spread is therefore around £15,600 short of producing no profit at all.
If the investor wanted £25,000 of pre-tax profit under the same assumptions, the required sale price moves to roughly £301,000. At that point the difference between purchase and sale is just over £100,000, yet the project profit is still only about £25,000 before tax and before several deal-specific costs that the model deliberately excludes. A £100,000 gross spread can therefore translate into a single-digit percentage profit on total project cost.
Time has a similar effect. On this model, the bridge interest costs £1,215 a month and the assumed holding costs another £300. A three-month delay adds about £4,545 before any extension fee, additional insurance premium or change in selling costs. The property does not need to suffer a structural disaster for the margin to disappear; conveyancing, a slow contractor, a failed buyer or one extra planning issue can do it gradually.
The exit value is even more powerful. A 5% miss on a £260,000 expected sale price is £13,000 before allowing for the small reduction in agent commission. That one valuation error is almost the size of the entire pre-tax loss in the base case. On a project that begins with a thin margin, the reliability of the end value matters more than whether the investor can save another £1,000 on the kitchen.
| Same worked project | Approx. pre-tax outcome |
|---|---|
| Sell for £247,000 — 5% below the assumed exit | –£28,081 |
| Sell for £260,000 as assumed | –£15,315 |
| Sell for about £275,600 | Break-even |
| Sell for about £301,000 | £25,000 profit |
| Sell for £260,000 after an extra three months | –£19,860 |
Sensitivity figures use the same underlying assumptions as the main worked example. The estate-agent fee changes with the sale price; the three-month delay adds the modelled bridge interest and holding cost only.
At that point, flipping starts to resemble development appraisal rather than home improvement. The investor should know the break-even sale price, the sale price required to achieve the target profit, the monthly cost of delay and how much value can be lost before the project falls below the return required for the capital and risk involved. A deal that works only if every assumption lands on the optimistic side is not a high-return project; it is a low-margin project with a favourable spreadsheet.
Cash funding does not remove that logic. It removes bridge interest and some finance fees, which can transform the result, but the investor has tied up much more capital for the same period. The relevant comparison then becomes return on cash employed and annualised return, not simply the absence of an interest bill. Money committed to a nine- or twelve-month renovation has an opportunity cost even when no lender sends an invoice for it.
Renovation cost and value added are not the same number
A second common weakness in flip appraisals is assuming that spending £40,000 on a property automatically creates at least £40,000 of additional value. It may do considerably more on the right project and considerably less on the wrong one.
The end value comes from the market, not from the invoice file. A poorly configured three-bedroom house may gain substantially from becoming a well-designed four-bedroom home if local buyers pay a clear premium for the extra accommodation and the planning, layout and floor area support it. Replacing an already serviceable kitchen with a more expensive one may add much less than it costs if the property is already close to the ceiling price for its street.
That distinction becomes more important as renovation costs rise. The investor is not buying building work for its own sake; the works are being purchased because they are expected to create saleable value, remove a defect that suppresses the purchase price, widen the buyer pool or shorten the eventual sale. The correct question for each substantial item is therefore not merely “what will this cost?” but “what difference does this make to the exit?”
VAT is part of that calculation in a way that is easy to underestimate. Most renovation work on existing homes is standard-rated, while specific reduced or zero-rating rules apply only when their conditions are met. A £30,000 contractor estimate excluding 20% VAT is a £36,000 cash requirement if the VAT cannot be recovered. For an operator buying, renovating and reselling an existing dwelling, that recovery should not simply be assumed: the sale of land and existing buildings is generally exempt from VAT unless a specific exception applies, and HMRC says input VAT attributable to exempt supplies is not normally deductible. HMRC VAT Notice 742 on land and property HMRC VAT Notice 708 on building work and input tax The VAT position therefore belongs in the appraisal before works are contracted, particularly where the operator is VAT-registered or the project involves conversion or redevelopment that may fall under different rules.
Contingency should also be separated conceptually from the planned specification. A 15% contingency is not spare money available for better finishes if the works go smoothly; it exists because opening an older property can uncover defects that were not reasonably priced at acquisition. If the project only achieves its required profit by assuming none of the contingency is used, the investor has not really allowed a contingency at all.
The same discipline should apply to the resale valuation. Comparable evidence for a refurbished property needs to reflect what buyers have actually paid for similar finished homes, not the most ambitious asking price nearby. Over-improvement is especially dangerous where the project crosses into a price bracket with fewer buyers or where the local market does not reward the specification being installed.
Estate agents involved before purchase as well as at resale have one of the most commercially useful roles in the transaction. The investor does not only need an opinion on what the property is worth today; they need a defensible view of what the proposed finished product is likely to compete against months later, and where the local ceiling begins.
Tax is not necessarily Capital Gains Tax — and ownership structure matters
The tax section is where a superficially successful flip can be modelled incorrectly even after all the property costs are right. A common assumption is that the eventual difference between purchase and sale will simply be a capital gain taxed at Capital Gains Tax rates. A genuine investment disposal can fall within CGT, but a property acquired with the intention of improving and reselling for profit can instead amount to trading.
HMRC’s land guidance applies the established “badges of trade” when deciding whether a transaction has the character of a deal rather than an investment. Relevant factors include the way the transaction was organised, whether borrowing was needed and on what terms, the nature of the asset, the period of ownership and the intention surrounding acquisition and disposal. No single badge decides the case; HMRC says the overall character of the transaction has to be considered. HMRC’s badges-of-trade guidance for land transactions Its related guidance is equally clear that a property transaction can be a trade even where the person does not describe themselves as starting a property-trading business. HMRC: deal or investment?
There is also specific statutory legislation dealing with profits from UK land transactions. HMRC’s current manuals explain that Part 9A of the Income Tax Act 2007 and Part 8ZB of the Corporation Tax Act 2010 can treat profits from disposals as trading profits where the statutory conditions are met. HMRC overview of the UK land trading provisions The point for a buy-renovate-resell investor is not that every short ownership period automatically creates trading income; it is that the tax character should be considered before purchase rather than assuming CGT because the asset happens to be a house.
The consequence depends on who is carrying on the activity. If an individual is trading personally, profits fall into the income-tax regime and Class 4 National Insurance can also apply to self-employed profits; for 2026–27 the Class 4 rates are 6% between the relevant lower and upper profit limits and 2% above the upper limit. Current National Insurance rates Income-tax rates themselves depend on the individual’s wider income and tax jurisdiction, with Scotland operating separate non-savings income-tax bands.
A company carrying on the property trade is instead within Corporation Tax. The current small-profits rate is 19%, the main rate is 25%, with marginal relief between the thresholds, subject to the associated-company rules. Current Corporation Tax rates That does not make a company automatically more tax-efficient: extracting money from the company can create additional personal tax, financing terms can differ and the acquisition itself can have different consequences. It means the ownership and trading structure is part of the project appraisal rather than a decision to make after the property has been sold.
Where a disposal genuinely remains capital for an individual, the current main CGT rates are 18% and 24% and the 2026–27 annual exempt amount is £3,000. Current CGT rates and allowances The important point is not that one regime is always better. It is that a project’s target profit should be tested using the tax treatment that is realistically likely to apply to the facts and the chosen ownership structure.
The current market shows where the margin has become hardest to find
The 2025 transaction data help answer the headline question more directly than any single hypothetical deal. Hamptons found that 73.3% of homes bought and resold within twelve months sold for more than their purchase price, but once SDLT was deducted only 58.7% still showed a positive gross result. Those figures still exclude renovation, finance, holding and selling costs, which is why a transaction can count as a profitable fast resale in headline data without necessarily producing a worthwhile investor return.
Purchase price was one of the clearest dividing lines. In Hamptons’ England purchase-price breakdown, 86% of flips bought for £100,000 or less still produced a positive result after SDLT, compared with 68% in the £100,001–£200,000 band, 37% between £200,001 and £350,000 and only 28% above £350,000. Average post-SDLT returns fell across the same bands from 45.8% at the cheapest end to -4.5% for purchases above £350,000 — again before refurbishment and finance are considered.
Geography matters for the same reason. Lower entry prices reduce the absolute transaction-tax burden and can leave more room for refurbishment to create value. Hamptons identified the North East as the strongest English region in percentage-return terms in 2025 and the only English region where post-SDLT profits had risen compared with 2015, while parts of southern England had seen margins contract far more sharply.
That should not be read as a recommendation to buy any cheap northern property. Low purchase price is useful only where there is a sufficiently liquid resale market, a clear value gap between poor and renovated stock, reliable contractor access and an exit value supported by comparable sales. A £70,000 property that becomes worth £85,000 after £25,000 of work is not rescued by low stamp duty.
What the market evidence does show is that flipping has become increasingly sensitive to the entry price and the size of the genuine value-add. Higher-value projects carry larger transaction costs and can require much bigger cash profits simply to produce the same percentage return on the capital committed. Thin spreads are harder to defend when SDLT, finance and refurbishment are all taking a larger absolute bite.
A viable flip is bought on the exit maths, not the before-and-after photograph
Property flipping still works, but the deals that work are a narrower subset of the properties that look capable of improvement. The difference is underwriting discipline: the investor has to buy far enough below a defensible finished value to cover transaction tax, finance, refurbishment, VAT, contingency, holding and selling costs while still leaving a profit worth taking for the capital and execution risk. They need enough time in the bridge or other finance to survive a delay without the exit becoming forced. They need the works to create market value rather than simply make the property more attractive, and they need the tax structure to reflect a trading project if that is what the facts amount to.
The £200,000 example demonstrates how demanding that can be. A property that appears to offer £60,000 of upside actually loses around £15,000 under the worked assumptions. The break-even sale value is nearer £276,000, and a pre-tax £25,000 profit requires roughly £301,000. Every additional month costs around £1,500 in interest and holding costs before other overruns. Those are much more useful numbers than the original £60,000 spread because they show how much room the investor really has.
The same principle explains why successful operators can still make money while overall flipping activity falls. They are not relying on renovation alone to manufacture a return from an ordinary purchase. The margin has to exist at acquisition, in the change being made to the property, or both.
That is also why cash buyers do not automatically have the winning model. Removing roughly £13,000 of bridge cost from the example improves the project materially, but it does so by committing another £150,000 of the investor’s own capital. The project should still be judged against the return that capital could have earned elsewhere and the risk of having it tied to one illiquid asset through the renovation and sale.
A professionally appraised flip is therefore not “buy for £200,000, spend £40,000, sell for £260,000”. It is a forecast of the complete cash requirement, the most defensible exit value, the cost of time, the tax treatment and the return on the actual capital at risk. Only after those numbers survive a pessimistic case does the before-and-after transformation become commercially interesting.
The current market data suggest that fewer projects now clear that hurdle than they did a decade ago. They also show that the strategy has not disappeared. It has become much more dependent on buying the right asset at the right basis — and much less tolerant of pretending that the difference between two sale prices is profit.
This article provides general information about property renovation and resale economics and does not constitute investment, tax, mortgage or legal advice. The worked example is hypothetical. Transaction taxes vary across the UK and by purchaser circumstances; finance, building costs and tax treatment depend on the individual project and ownership structure. Appropriate professional advice should be taken before committing capital.
