Should You Remortgage to Fund Your Child's First Deposit in 2026?
- May 12
- 11 min read
Releasing equity to help your child onto the ladder can be the cleanest gift you ever make, or the most expensive. The right call depends on your retirement plan, the cost of borrowing that capital back, and your inheritance tax position. Here is how to weigh them cleanly.
Quick Answer
Remortgaging to gift a deposit makes sense when you have meaningful equity, the new monthly payment fits comfortably alongside your pension plan, and the gift is structured as a clear potentially exempt transfer for inheritance tax. If affordability is your child's only obstacle, Joint Borrower Sole Proprietor often beats a cash gift.
Reviewed by Ben Stephenson, FCA authorised (FRN 496907) · 25+ years' experience · 4.9★ on Google. Updated: 12 May 2026.
Who Is This Guide For
Aimed at parents weighing whether to use their main home's equity to help an adult child onto the ladder. Specifically:
Homeowners in their 50s-60s with £100,000+ of equity and 5-15 years of mortgage left
Higher-rate-tax-paying parents thinking about inheritance planning alongside the gift
Parents whose child has the income to service a mortgage but not the deposit
Families comparing a cash gift against Joint Borrower Sole Proprietor or equity release
Key Points
Bank of Family will back 357,200 home purchases in 2025
Gifts become inheritance-tax-free after the 7-year clock runs
JBSP often beats a cash gift on long-term cost
On this page
What lenders treat as a gifted deposit from your remortgage
A capital-raise remortgage paid into your child's deposit account is treated by their lender the same way as a gift from cash savings, provided the paperwork supports it. According to the FCA (2024), lenders' source-of-funds checks focus on three things: did the donor have a legal right to the funds, did they hand them over without expectation of repayment, and is the money traceable from source to completion. Equity withdrawn from your home meets all three.
In practice, the child's lender will ask for a signed gifted deposit letter from you stating the amount, that the funds are a gift rather than a loan, that you expect no repayment, and that you will have no interest or claim on the property. You will also need to provide your bank statements covering the period during which the remortgage funds landed and the gift was transferred. UK Finance (2025) reports that most underwriters now expect at least three months of donor statements alongside ID verification.
On top of that, expect a request for a copy of your remortgage offer or completion statement showing the equity release as the source of the funds. This satisfies anti-money-laundering checks and confirms the money has a documented origin rather than appearing from nowhere. Bank statement red flags such as undeclared lump sums or unexplained credits become particularly important here; see our guide on bank statement red flags lenders look for for the donor side of the picture.
Lenders will not let you describe the same funds as both a gift and a loan. If you mention an informal expectation of repayment, even in passing, the underwriter is likely to treat it as a personal loan that must be declared on the child's affordability, which usually kills the application. Gifts have to be unambiguous.
How much it really costs to release £30k to £100k over 25 years
The headline gift amount is rarely the true cost to you. The true cost is the gift plus the interest you will pay on borrowing that capital back over the remaining term of your mortgage. According to the Bank of England (Q1 2026) Mortgage Statistics, the average new 5-year fixed rate sits in the mid-4% range, so a 25-year repayment remortgage costs broadly 75-80p of interest for every £1 borrowed.
Gift amount | Indicative total interest over 25 years |
£30,000 | £22,000 to £24,000 |
£50,000 | £36,000 to £40,000 |
£75,000 | £55,000 to £60,000 |
£100,000 | £73,000 to £80,000 |
These figures are indicative only and depend heavily on the rate you secure, whether you choose interest-only or repayment, and whether you keep the original term or extend it. The trade-off is straightforward: a £50,000 gift today funded by a 25-year repayment remortgage costs roughly £88,000 in total cash out of your retirement. That is a meaningful number to put against the alternative of waiting two or three years for your child to save more, or using a different route entirely.
Two adjustments soften the maths. If you remortgage onto an interest-only basis for the released capital and repay it from a pension lump sum or downsize later, the long-term cost drops substantially because you only ever pay interest, not principal. And if your existing mortgage has a meaningful early repayment charge, timing the capital raise to coincide with your fixed-rate expiry avoids a 1-5% upfront cost. Our guide on early repayment charges walks through when it is worth paying to leave a fix early.
How your affordability shifts after a capital-raise remortgage
This is the section most parents underestimate. When you add £30,000 to £100,000 onto your existing mortgage, your monthly payment goes up by £150 to £550 indicative, depending on rate and term. Your lender stress-tests that new payment as if you continue paying it through retirement, not just while you remain in work.
According to the FCA Consumer Duty rules (2023) and Mortgage Conduct of Business (MCOB) sourcebook, every lender must take reasonable steps to ensure your repayments remain affordable across the full term. If your term runs past your stated retirement age, the lender will assess your post-retirement income (pension, drawdown, rental) rather than current earnings. Two common outcomes follow.
If your projected retirement income is generous enough, the larger mortgage continues onto a standard term without issue.
If the projected post-retirement payment looks tight, the lender may shorten the term, decline the capital raise, or require a clear repayment vehicle (lump sum, downsize plan, pension tax-free cash).
A useful sense-check: take the post-remortgage monthly payment and divide by your forecast monthly retirement income at age 67. If the answer is above roughly 35%, expect the underwriter to push back or restructure. Many parents discover at this stage that what they wanted to gift, the lender will not let them release in one go.
The inheritance tax 7-year clock and what it really means
A gift of any size to your child is treated by HMRC as a Potentially Exempt Transfer (PET). According to HMRC (2026/27 guidance), the gift becomes fully exempt from inheritance tax if you survive the seven years after making it. Die within those seven years and the gift counts back into your estate at its original value for inheritance tax purposes.
Three details matter more than parents typically realise. Taper relief only applies if the cumulative value of your gifts exceeds the £325,000 nil-rate band. Below that threshold, no inheritance tax applies at all, so taper relief is academic. Above £325,000, taper relief reduces the rate of inheritance tax owed on the excess on a sliding scale from year 3 to year 7. This is widely misunderstood: taper relief does not reduce the amount of the gift treated as an asset, only the rate of inheritance tax charged.
Each parent also has a separate £3,000 annual exemption. A couple can therefore gift £6,000 in the current tax year and a further £6,000 in the previous year if unused, totalling £12,000 outside the 7-year rule entirely. This is small relative to a typical deposit gift, but worth recording.
The clock starts on the date of the gift, not the date of completion of the child's purchase. If the gift sits in their bank for several months before exchange, the clock has already begun. Date your gift letter and bank transfer carefully and keep both records.
A common error: parents make a £50,000 gift, die within 5 years, and the estate executors discover the gift was never documented. The £50,000 is reconstructed from bank statements with interest assumed, the estate pays unnecessary inheritance tax on the larger figure, and the family loses to administration what should have been a clean transfer. Documentation prevents this entirely.
Joint Borrower Sole Proprietor: the alternative many parents miss
If your child can afford the monthly mortgage payment but cannot raise the deposit, gifting capital is not the only option. A Joint Borrower Sole Proprietor (JBSP) mortgage adds your income to the child's affordability assessment without putting you on the property deeds. The child remains the sole owner of the home; you act as a co-borrower whose income boosts what the lender will lend.
According to Skipton Group (March 2026), 52% of recent first-time buyers needed two or more full-time incomes to afford a home, which is exactly the gap a JBSP closes. Up to four people can sign onto a JBSP, typically the buyer plus one or both parents.
Decision factor | Cash gift via remortgage / JBSP / equity release |
Upfront cost to parent | 25-yr interest / None monthly / Compound interest rolling up |
Inheritance tax exposure | 7-year clock / None (no gift) / Rolled-up debt reduces estate |
Parent's future affordability | Long-term liability / Joint borrower liability / None |
Child's ownership | Sole owner / Sole owner / N/A (parent's home) |
A JBSP often comes out cheaper than a cash gift when run end-to-end because you keep your equity, avoid 25 years of remortgage interest, and the inheritance tax position stays unchanged. The downside is that you remain legally liable for repayments if your child cannot pay, and the joint borrowing affects your own future borrowing capacity. Most parents come off the mortgage after 3-5 years once the child's income has grown.
Two adjacent options to weigh: lifetime mortgages (a form of equity release where interest rolls up rather than being paid monthly) and guarantor mortgages (now rare and largely replaced by JBSP). Lifetime mortgages avoid the affordability stress test entirely but the compound interest typically doubles the borrowed amount every 12-15 years, so the long-term cost is steep.
What the application looks like to a lender
The full paperwork stack for a parent-gift remortgage looks like this in practice. A signed gifted deposit letter on your behalf, naming you, the child, the gift amount, the property address (if known), and a declaration that the funds are a gift not a loan with no claim or interest expected. Six months of bank statements covering both ends of the transfer (yours showing the remortgage funds in and the gift out, the child's showing the gift in).
On top of that, your remortgage offer and completion statement evidencing the equity release as the source of funds. ID verification for you (passport or driving licence) plus proof of your address. A confirmation letter from your solicitor if the gift exceeds a threshold the child's lender treats as enhanced due diligence (typically over £50,000). For overseas-sourced gifts, the documentation bar is higher again, our guide on overseas gifted deposits in the UK covers the additional source-of-funds layer.
Underwriters will additionally cross-check the dates: did the remortgage complete before the gift transfer, are there any other large transactions on your statements that need explaining, do your stated income and your stated estate value reconcile. Inconsistencies do not necessarily kill the application but they slow it down and may trigger follow-up questions or a manual underwrite, which can add two to three weeks.
The cleanest applications keep a single clean money trail: remortgage completes, funds land in your account, transfer goes straight to the child's solicitor (often with no intermediate hop). Anything that looks like a layered transaction will get flagged.
Hidden costs you should weigh before signing
Beyond interest and inheritance tax, four costs surface late and tend to surprise parents.
Stamp Duty Land Tax. SDLT does not apply on the gift itself, but if the child is buying with help from a partner who already owns a property, the SDLT 3% surcharge for additional dwellings may apply to the full purchase price. This is a £6,000 hit on a £200,000 home. Establish whose property the buyers already own before the offer goes in.
Arrangement fees. Lender arrangement fees on your remortgage typically range from £999 to £2,499 and are often added to the loan, which means you pay interest on them for the full term. A £1,999 arrangement fee added to a 25-year mortgage at 4.5% costs around £3,300 in cash over the term.
Legal fees. Legal fees for the gifted deposit declaration may be £150 to £350 charged by your solicitor and an equivalent amount by the child's solicitor. Solicitors will not accept a verbal arrangement.
Pension and benefit implications. If you are claiming any means-tested benefit or are nearing the lifetime allowance for pension contributions, releasing equity to gift can affect your position. The Financial Ombudsman Service has highlighted that gifts made for inheritance tax planning have occasionally been challenged as deprivation of assets where the donor later relies on means-tested support. The risk is small for the typical donor with significant assets, but worth verifying with a qualified tax adviser before the gift.
The Bank of Family is the eighth or ninth largest source of mortgage capital in the UK depending on the year, but it is the only one without a regulator. That makes the documentation and structure entirely on you. Get the paperwork right and the gift is the cleanest thing you will do this decade. Get it wrong and the cost shows up in inheritance tax, family disputes, or a future remortgage application that fails for reasons no one expected.
FAQs
Can I split the gift between two children at the same time?
Yes. A single capital-raise remortgage can fund deposits for more than one child in the same tax year. The 7-year clock runs separately for each gift from its own date. Document each gift in a separate letter to keep the trail clean.
Will my child's lender accept a gift from a remortgage that has not yet completed?
No. Most lenders require the source funds to be already in your account at the point of the child's mortgage offer being made. Sequencing matters: complete your remortgage first, then accept the gift declaration into the child's application.
What happens if I die within 7 years of the gift?
The gift counts back into your estate at its original value for inheritance tax calculation. If your estate is below £325,000 plus any unused residence nil-rate band, no inheritance tax applies. Above that, taper relief applies on a sliding scale from year 3 onwards.
Does the child have to be a first-time buyer to receive a gifted deposit?
No. Gifted deposits work for first-time buyers and home movers. However, first-time buyer status, which affects Stamp Duty thresholds, is the child's status, not the donor's. The gift does not change that.
Can my child pay me back later if circumstances change?
Not from the same property. If you describe the funds as a loan in any form, the child's lender will treat it as a debt for affordability and the application typically fails. You can structure a separate gift and a separate future financial arrangement, but they cannot be entangled in the original transaction.
Is a JBSP mortgage on my credit file?
Yes. The JBSP appears on the credit files of all joint borrowers, which affects your own future borrowing capacity until you come off the mortgage. Plan around any major borrowing of your own in the next 3-5 years before signing.
Summary
Releasing equity from your home to fund a child's deposit can be the most efficient gift you make, but only if the maths works across three dimensions: the cost of borrowing that capital back, your post-remortgage affordability through retirement, and the inheritance tax position. For many families, JBSP is a cleaner alternative when affordability is the only obstacle. The paperwork is more important than people realise.
Updated: 12 May 2026
Written by Ben Stephenson, CeMAP-qualified Mortgage Broker, and reviewed by Mortgage Experts.
Manor Mortgages Direct is FCA authorised, FRN 496907. We are a UK-based specialist mortgage brokerage with 25+ years of experience helping homeowners, landlords, expats, and the self-employed across the full spectrum of mortgage scenarios, assisting clients nationwide.
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