A day-one remortgage is a buy-to-let refinance a lender will complete straight after you take ownership of a property, rather than making you wait the six months that most lenders insist on before they will remortgage. It solves a specific and expensive problem: capital that would otherwise be locked up for half a year. The landlord who buys at auction with cash, the investor who uses bridging to move fast, and the owner who transfers a personally-held rental into a limited company (an SPV) all face the same wall. The property is theirs, the rent is coming in, but the standard buy-to-let market will not release a penny against it until six months have passed.
This page is about the finance mechanics of getting round that wall: what the six-month rule is, why it exists, which situations create a day-one need, and how the small group of lenders that waive the rule actually assess the case. Where a personally-owned property is being moved into a company, the transfer carries stamp duty and a potential capital gains charge. Those are tax questions, and we summarise them and link the detailed working rather than re-argue it here. If you have not yet decided whether to hold property personally or through a company, start with the limited company versus personal ownership tax comparison, and for how buy-to-let lending works generally, see our buy-to-let mortgages guide.
The six-month rule and why lenders apply it
Most buy-to-let lenders will not remortgage a property that the current legal owner has held for less than six months. The industry calls it title seasoning. It is a criteria point, not a law, but it is close to universal across the mainstream market, so in practice it behaves like a hard rule.
The rule exists to manage fraud risk. A rapid resale or refinance at an inflated value shortly after purchase is a well-worn pattern in back-to-back sales, money laundering and mortgage fraud, so lenders and their valuers treat any sub-six-month case with suspicion. Title seasoning also gives the lender comfort that the price recorded on the register reflects a genuine, arm's-length market value, rather than a figure engineered to pull equity out quickly. The Prudential Regulation Authority expects buy-to-let lenders to underwrite affordability and value robustly under its supervisory statement SS13/16 on underwriting standards for buy-to-let mortgage contracts, and a cautious stance on recently-acquired property is part of that.
Lenders that do offer day-one products manage the same risk differently. Instead of a blanket six-month wait, they run tighter checks: a full valuation, evidence of where the original purchase funds came from, and a preference for transactions they can explain (an auction purchase, a bridge being repaid, or an incorporation between connected parties at market value). The risk is handled case by case rather than by an arbitrary time bar.
When a day-one remortgage is actually needed
Three situations create the need, and they share one feature: the property was acquired without a conventional buy-to-let mortgage in place, so the capital used to buy it is now sitting in the bricks.
- A cash or bridging purchase. A landlord buys with cash or short-term bridging finance to complete quickly, then needs a standard buy-to-let term loan to recover the cash or repay the bridge. Bridging is expensive, so the sooner the term mortgage lands, the better. Waiting six months can mean six months of bridging interest.
- An auction purchase. Auction completions run on a 28-day (sometimes 14-day) clock that a normal mortgage cannot always meet, so buyers use cash or bridging, then refinance. The day-one remortgage is what turns a short-term auction buy into a long-term hold.
- A transfer into a limited company (SPV). A landlord who already owns a rental personally and decides to move it into an SPV is, in law, selling the property to the company. The company needs its own mortgage to fund that purchase from the individual, and a day-one remortgage lets it borrow immediately rather than leaving the incorporation half-finished for six months.
The third case is the one this page focuses on, because it sits at the seam between the mortgage and the tax. The finance question (can the SPV borrow on day one) and the tax question (what does the transfer cost in stamp duty and capital gains) have to be answered together, or the numbers do not work.
How day-one lenders assess the case
A day-one lender underwrites the same way any buy-to-let lender does, with two extra sensitivities: the valuation basis and the source of the purchase funds.
The core affordability test is the interest coverage ratio (ICR). The lender stresses the rent against a notional interest rate and requires it to cover the interest by a set margin. For a limited-company or SPV borrower, the ICR is typically 125%, the same margin applied to a basic-rate individual, and lower than the 145% applied to higher-rate individual borrowers (the gap reflects the Section 24 finance-cost restriction that companies do not suffer). Lenders commonly stress the rent at around 5.5%, or the product rate plus 2%, whichever is higher, for shorter fixes and variable products. These are market norms that move, so treat any figure as indicative and check the live position when you apply. You can model the numbers with our buy-to-let rental stress test calculator and size the loan with the buy-to-let mortgage calculator.
The valuation basis is the day-one-specific issue. Some lenders will only lend against the lower of the price paid and the valuation until six months have passed, which caps a release if you bought below market or added value through refurbishment. Others will lend against the current market value on day one, which is the whole point of the product. On an SPV incorporation the transfer is normally at open-market value, so the price and the valuation usually align, which removes that friction. The source of the original funds (your own cash, a bridge, a deposit gifted or loaned in) will be evidenced as part of the lender's anti-money-laundering checks.
Worked example: releasing the deposit on an SPV incorporation
A landlord owns a rental worth £250,000 in their own name, mortgage-free, and decides to move it into their newly-formed SPV. Legally, this is a sale from the individual to the company at market value. The company needs a mortgage to fund the purchase, and the landlord wants the deposit-equivalent capital back out rather than leaving £250,000 of value locked in the company with no borrowing against it.
A day-one remortgage lender advances 75% loan-to-value, £187,500, to the SPV on completion of the transfer, waiving the six-month rule. The property lets at £1,300 a month. Checking the ICR: at a 5.5% stress rate the interest on £187,500 is about £859 a month, and a 125% company ICR requires rent of roughly £1,074 a month. The £1,300 rent clears it with headroom, so the £187,500 is affordable and the loan completes.
The effect is that the landlord recovers £187,500 of capital from the company on day one (usually credited to a director's loan account, repayable later without further tax), rather than watching it sit stranded in the property for six months. The incorporation is funded and finished in one move.
| Element | Figure |
|---|---|
| Property value (transfer to SPV at market value) | £250,000 |
| Day-one remortgage at 75% LTV | £187,500 |
| Monthly rent | £1,300 |
| Stress rate assumed | 5.5% |
| ICR (company borrower) | 125% |
| Rent needed to clear ICR | circa £1,074/mo |
| Outcome | Clears with headroom · £187,500 released on day one |
The numbers above are illustrative and use current market norms for LTV, stress rate and ICR. Rates and lender criteria change, so verify the live position before you rely on them.
The tax points on transferring into an SPV (summarised, cross-linked)
Moving a personally-owned property into a company is a tax event as much as a finance one, and getting the finance in place does not change the tax. Two charges dominate.
Stamp duty land tax. The company buys the property from you at market value, so it pays stamp duty on that value, including the higher rates for additional dwellings where they apply. There is no relief simply because you own both sides. Stamp duty is often the single biggest cost of incorporating, and it can outweigh the annual tax saving for years, so it has to be modelled first. Partnership incorporations can sometimes reduce the charge, but that is a specialist route. See the government guidance on stamp duty land tax for the rates, and our guide to transferring property into a limited company for the full working, including the point at which the financing (this day-one remortgage) fits into the sequence.
Capital gains tax and incorporation relief. Transferring the property to the company is a disposal by you at market value, which can crystallise a capital gain. Section 162 of the Taxation of Chargeable Gains Act 1992 can defer that gain by rolling it into the shares you receive, but it is not automatic: it generally requires the letting to be a genuine business transferred as a going concern, a fact-sensitive test many small portfolios fail. Our page on section 162 incorporation relief for property landlords covers when it applies. And because the new SPV mortgage interest is fully deductible for a company (unlike the restricted relief individuals get), read how Section 24 affects remortgaging a buy-to-let before you decide. The tax and accounting side of an incorporation is the service our firm provides directly.
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Releasing capital versus a pound-for-pound refinance
A day-one remortgage on an incorporation is a form of capital raising: the SPV borrows against value that previously carried no debt, and the proceeds flow back to the director. That is different from a pound-for-pound refinance, where you simply replace an existing loan with a new one of the same size and raise no additional money.
The distinction matters for two reasons. First, lenders often stress a pound-for-pound remortgage (no additional borrowing) more gently than a capital-raising remortgage, sometimes at a lower rate or a relaxed ICR, because the risk profile is unchanged. Second, the tax treatment of interest depends on what the raised capital is used for. Where you pull equity out of one property to fund the next, the deductibility of the interest follows the use of the money and, for individuals, the Section 24 restriction. If your day-one remortgage is really the first step in recycling equity to grow a portfolio, read our guide to capital raising through a buy-to-let remortgage, which covers the LTV-versus-ICR ceiling and the interest-deductibility catch in full.
Where a day-one remortgage sits with the SPV lending rules
A day-one remortgage into a limited company is, underneath, an ordinary SPV buy-to-let mortgage completed on an unusual timeline. Everything that governs SPV lending still applies: the lender wants a clean, single-purpose company, an acceptable SIC code, and a personal guarantee from the directors.
If the SPV was formed specifically for the incorporation, it may be days old with no accounts, which is normal for this kind of case and not a barrier, because the loan is underwritten on the rent and the guarantee, not company history. Our guide to an SPV mortgage with no income or trading history covers how lenders handle a brand-new company, and the SIC code for an SPV property company page explains why a wrong code (68100 alone, for example) can get the case declined before valuation. For the broader picture of what lenders mean by an SPV and how personal guarantees work, see SPV mortgages explained. Getting the company set up correctly before the transfer avoids a decline on the day the finance is meant to complete.
The consumer line we do not cross
Everything on this page is unregulated business lending: a company, or an individual acting for a business purpose, borrowing to hold property as an investment. That is outside the Financial Conduct Authority's regulated-mortgage regime.
A regulated mortgage contract is a different thing. Under the Regulated Activities Order and the FCA's guidance on the buy-to-let and consumer boundary, a mortgage becomes regulated where the borrower, or a close relative, occupies or will occupy the property as a home. A day-one remortgage on a home you or a family member live in, or a refinance dressed up as business lending to release cash from your own residence, is a regulated (and, in the connected-party case, a prohibited-purpose) matter. That is not something we introduce. If your situation involves a property anyone will live in, speak to an FCA-authorised mortgage adviser instead. We also do not touch first or second-charge residential lending of any kind, and we do not arrange insurance.
How the tax and finance sides fit together
The reason a day-one remortgage on an incorporation is worth doing well is that the two halves are locked together. Get the finance right but the tax wrong, and a stamp duty bill or a failed incorporation-relief claim can wipe out years of saving. Get the tax right but leave the finance to chance, and the SPV completes the purchase with £187,500 of capital stranded, defeating the point.
Our role is the tax and accounting half: modelling the stamp duty and capital gains cost, checking whether section 162 relief is available, setting the SPV up correctly, and structuring the director's loan so the released capital can come back out tax-efficiently. Where a mortgage is needed to complete the move, we can, if it is useful to you, make a bare introduction to a business-finance broker who handles limited-company and portfolio buy-to-let lending. That is an introduction only: we do not advise on, negotiate or recommend a specific mortgage product or lender, and the introduction is limited to genuine business-purpose lending. Because we do not promote a specific product, the introduction sits outside the financial promotion restriction in section 21 of the Financial Services and Markets Act 2000. The wording of how we make that introduction is being finalised, so treat this as an offer to help rather than a regulated service.