Secured Loans for Tax Bills: HMRC, CGT and Inheritance Tax (2026 UK Guide)

Can you use a secured loan to pay a tax bill?

Yes. Tax liabilities are a recognised loan purpose for second charge mortgages, and most UK secured loan lenders will fund self-assessment, capital gains tax, inheritance tax, VAT, and corporation tax bills.

The mechanics are straightforward. The lender treats the tax bill like any other loan purpose — assess affordability, value the property, register the charge, and release funds to your bank account (or in some cases pay HMRC directly to evidence the funds reached the right place).

What lenders want to see is a copy of the HMRC demand or self-assessment statement showing the amount due, plus your usual income and identity documentation.

Why a secured loan beats HMRC's interest and penalty regime

HMRC's late payment interest sits at 7.75% in mid-2026, tracking the Bank of England base rate (held at 3.75% at the April 2026 MPC, with the next decision due 18 June 2026) plus 4 percentage points — but the bigger cost is the penalty regime stacked on top: 5% of unpaid tax at 30 days, another 5% at 6 months, and another 5% at 12 months for self-assessment.

Prime secured loan rates from lenders such as Selina Finance (6.34% APRC sub-50% LTV) and Spring Finance (7.61% APR fixed) routinely beat the all-in cost of carrying an HMRC liability. On a £40,000 tax bill paid 12 months late, HMRC penalties alone would total £6,000 — more than three years of interest on the equivalent secured loan.

The maths gets sharper for capital gains tax on property disposals, where 60-day reporting deadlines are tight and the bill can be substantial.

Common tax-bill scenarios that suit a secured loan

Self-assessment liabilities are the most common case — particularly for self-employed borrowers, landlords, and limited company directors taking dividends, where the January 31 deadline catches cash flow off-guard.

Capital gains tax on property disposals comes second. Selling a buy-to-let or second home triggers a CGT bill due within 60 days; if the sale proceeds are tied up in the next purchase, a secured loan against your main residence can bridge the gap.

Inheritance tax is the third major use case. IHT is due 6 months after death, but probate often takes 9–12 months to release the estate's funds. Beneficiaries use secured loans against their own homes to pay HMRC and unblock probate.

Less common but valid: VAT bills for sole traders, corporation tax for company directors paying personally, and payments on account that have grown unmanageable.

Speed: meeting HMRC deadlines

Most secured loans complete in 2–4 weeks. For straightforward profiles, completion in 10–14 working days is achievable when all parties move quickly.

If your HMRC deadline is closer than the secured loan completion timeline, request a Time to Pay arrangement from HMRC. They typically grant 30–60 days when you can demonstrate funds are imminent — provide the lender's offer letter as evidence.

Don't wait until the last week. Start the secured loan application 6+ weeks before the deadline if possible.

A recent £800,000 HMRC case study

A recent example of what second charge lending can achieve: a client came to us with an HMRC tax liability of £800,000 that had been outstanding for a number of years, with interest accruing at £150 per day — making speed absolutely critical. From the point of submission, we completed the case in just 10 working days.

The case was not without its challenges, but working closely with the team at Interbridge, we were able to drive the case forward as efficiently as possible and get our client the funds they urgently needed.

The product secured was at 62% LTV on a 5-year fixed rate of 6.4%, with no early repayment charges at any point — meaning the client retains the flexibility to remortgage into their first charge in approximately two years' time when their current fixed rate expires, potentially securing a significantly lower blended rate at that point.

On completion, the client wrote to us: "Thanks for all of your help on this Sam. I really appreciate all your speed and efficiency."

First charge lenders routinely consent to second charges being registered behind them regardless of loan purpose. Tax liabilities are widely accepted by second charge lenders, and Charles Frank Finance has successfully placed secured loans for HMRC liabilities ranging from £8,000 self-assessment bills to this £800,000 case — and everything in between.

If you have an urgent or complex tax liability and need to move quickly, get in touch with us today.

What to Bring to Your Application

Having the right documentation ready from the outset will help us move as quickly as possible on your behalf.

HMRC Documentation: a copy of the demand notice or self-assessment statement clearly showing the amount owed, the relevant tax year, and any payment deadline or accruing interest details.

Standard Secured Loan Documentation: photo ID (valid passport or full UK driving licence); proof of address (utility bill, council tax bill, or bank statement dated within the last 3 months); last 3 months' payslips if employed, or last 2 years' SA302s and accompanying tax year overviews if self-employed; last 3 months' bank statements; your most recent mortgage statement.

Inheritance Tax or Third Party Liabilities: if the bill relates to a third party — for example, where you are meeting an inheritance tax liability on behalf of an estate — please also provide executor evidence and grant of probate documentation.

A Word of Caution

A second charge mortgage is not always the only option for managing a tax liability. Before proceeding, we would always encourage you to explore whether HMRC's own Time to Pay arrangement may be available to you, as in some circumstances this can be a more cost-effective solution. We would also recommend seeking advice from a qualified accountant before making any borrowing decision of this nature.

Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.

Ready to Talk?

Whether your tax bill is urgent or you simply want to understand your options, the team at Charles Frank Finance is here to help. We specialise in complex and time-sensitive second charge cases and will work hard to find the right solution for your circumstances as quickly as possible.

Get in touch with us today for a no-obligation conversation — the sooner you contact us, the more options we may have available to you.