Mettle Referral Code Expiry: How Long Is Code HTLSB Valid?
Mettle referral codes do not have a published fixed expiry date; code HTLSB remains active indefinitely unless Mettle withdraws it or changes their referral programme terms, which they may do at any time without notice to existing users. This is a critical distinction from time-limited promotional codes (e.g., "valid until 31 December 2026"), which have explicit end dates. Mettle's referral codes operate on an ongoing basis, meaning you can apply for an account and redeem HTLSB today, tomorrow, or months from now—provided the code has not been deactivated by Mettle.
However, Mettle reserves the right to terminate or modify the referral programme at any time. If Mettle decides to end the referral scheme or retire code HTLSB, they are not obligated to provide advance notice to potential applicants. UseMyCode monitors this code monthly and will update this page immediately if we detect that HTLSB has been deactivated or is no longer crediting. If you are considering applying for a Mettle account to claim this bonus, we recommend doing so within the next 30 days to avoid the risk of the code expiring before you complete your application.
Once you have successfully redeemed code HTLSB in your Mettle app (after your first card payment has Completed), the £50 credit is locked into your account and cannot be removed by Mettle unless you breach the account terms or close your account voluntarily. The credit itself does not expire; it remains in your balance indefinitely and can be used for any eligible transaction.
Mettle Referral Bonus Withdrawal Restrictions: Can You Withdraw the £50 as Cash?
The £50 referral bonus is account credit, not a cash withdrawal. Mettle's terms specify that referral bonuses cannot be withdrawn as cash to an external bank account or ATM. The credit must be spent on eligible transactions within your Mettle business account—payments to suppliers, transfers to other accounts, card purchases, or holding as a balance buffer. This is a standard restriction for fintech referral bonuses and differs from traditional bank welcome bonuses, which are sometimes paid as cash deposits.
In practical terms, the £50 is usable immediately for any business expense you would normally pay from your Mettle account. If you make a £50 card payment for software, stationery, or services, the credit can offset that expense. If you transfer £50 to another business account, the credit can fund that transfer. However, if you attempt to withdraw £50 via ATM or request a bank transfer to your personal account, Mettle will decline the transaction because the credit is designated for in-account use only.
This restriction is enforced by Mettle's payment processing system and is non-negotiable. If you have already redeemed the code and the £50 is in your account, you cannot later request a cash payout or refund. You must use the credit for business transactions or accept that it will remain as a balance buffer. This is why it is important to understand the restriction before redeeming the code—if you have no immediate business expenses, the credit will sit in your account unused, which is not a loss (it is still your money) but may feel like a missed opportunity if you were hoping to extract cash.
Tax Treatment of Mettle Referral Bonuses: Do You Pay Tax on the £50?
The tax treatment of the Mettle referral bonus depends on your business structure and how HMRC classifies the credit. For most UK sole traders and limited companies, the £50 referral bonus is not treated as taxable income. HMRC's guidance on welcome bonuses and referral credits suggests that genuine promotional credits offered by financial institutions to new customers are not subject to income tax, as they are not consideration for services rendered and do not represent business income. Instead, they are treated as a reduction in the cost of opening the account.
However, this is not absolute. If HMRC were to argue that the £50 constitutes a benefit or subsidy related to your business operations, it could theoretically be subject to corporation tax (for limited companies) or income tax (for sole traders). In practice, this is extremely unlikely for a one-off £50 referral bonus from a regulated bank, as the amount is immaterial and the nature of the credit is clearly promotional. Your accountant or tax advisor can confirm the treatment for your specific circumstances, but the standard position is that referral bonuses are not taxable.
For National Insurance purposes, the £50 bonus does not count as earnings and does not affect your Class 2 or Class 4 National Insurance contributions. It is not treated as profit for the purposes of calculating your tax-free trading allowance (£1,000 for sole traders as of 2026). If you are claiming any tax relief or allowances based on your business income, the referral bonus is not included in the calculation.
If you are a limited company, the £50 credit is recorded in your company's accounting records as a capital credit (not revenue income) and does not increase your corporation tax liability. Your accountant will record it as a non-taxable benefit or promotional credit in your year-end accounts. If you are a sole trader, you do not need to declare the £50 on your Self Assessment tax return unless your accountant advises otherwise based on your specific tax position.
UseMyCode Tax Disclaimer: This article provides general information about the tax treatment of referral bonuses based on standard HMRC guidance as of 2026. Tax law is complex and individual circumstances vary. We strongly recommend consulting your accountant or a qualified tax advisor before claiming the Mettle bonus if you have concerns about tax treatment. UseMyCode is not a tax advisor and cannot provide personalised tax advice.
Mettle Referral Eligibility Rules: The Complete Legal Requirements
Mettle's referral programme has strict eligibility criteria designed to prevent fraud and ensure that only genuine new customers claim the bonus. Understanding these rules is essential because if you do not meet every requirement, your code redemption will fail or the credit will be reversed after posting. Mettle's eligibility checks are automated and enforced at account opening and code redemption stages.
New Customer Status: You must be a new Mettle customer with no Mettle account held in the previous 12 months. This is verified against Mettle's customer database and linked to your personal identity (name, date of birth, tax identification). If you held a Mettle account and closed it 11 months ago, you are not yet eligible; you must wait until 12 months have passed from the account closure date. If you held an account more than 12 months ago, you are now eligible to open a new account and claim the referral bonus. Mettle's system performs this check automatically during sign-up; if you are ineligible, the app will display an error message stating that you have held a Mettle account within the last 12 months.
Age and Identity: You must be 18 years or older and hold a valid UK-issued means of identification (passport or driving licence). Mettle verifies identity using third-party identity verification services (e.g., Experian, Equifax) and cross-references your details against government records. If your identity cannot be verified or if there is a mismatch between your application details and your identity records, your account will be rejected and you cannot claim the bonus.
UK Tax Residency: You must be a UK tax resident. This is verified using your address, National Insurance number (for sole traders), or Company House registration (for limited companies). If you are not UK tax resident—for example, if you live abroad but operate a UK business—you are ineligible for the referral bonus. Mettle's compliance team may request additional documentation (e.g., proof of UK address, visa status) if there is any doubt about your tax residency.
Business Structure: You must operate as either a sole trader or a limited company with up to two owners. Mettle does not offer accounts to partnerships, trusts, charities, or companies with more than two shareholders. If your business structure does not fit these categories, you cannot open a Mettle account and cannot claim the bonus. This restriction is enforced at account opening; if you attempt to register as a different business type, the app will reject your application.
Qualifying Card Payment: You must make at least one card payment using your Mettle debit card before the Redeem a Code option appears. The payment can be any amount (even £1) and must be a genuine business expense. Mettle's fraud detection system flags suspicious patterns (e.g., transferring money to yourself, making payments to shell companies, or unusual transaction volumes) and may reject your account or reverse the bonus if activity appears fraudulent. The payment must move from Pending to Completed status before you can redeem the code; attempting to redeem while the payment is still Pending will fail.
No Previous Referral Bonus: Mettle's terms state that each customer can claim the referral bonus only once. If you have previously redeemed a Mettle referral code (whether HTLSB or a different code), you are ineligible to claim again. This is verified against your account history; if you attempt to redeem a second time, the code will be rejected as invalid for your account.
Compliance and Account Closure Risk: Mettle reserves the right to close accounts or reverse bonuses if account activity triggers compliance or anti-money laundering (AML) concerns. This is a standard provision in UK banking terms and is enforced by Mettle's compliance team. If your account is closed for compliance reasons, any unredeemed referral bonus will be forfeited, and any credited bonus may be reversed. While this affects only a small percentage of users, it is a material risk worth understanding before opening an account.
Mettle Referral Terms: Code Redemption, Conditions & Restrictions
Once you have met all eligibility criteria and made your first qualifying card payment, redeeming code HTLSB is straightforward, but the terms governing redemption are strict and non-negotiable. Understanding these conditions ensures you do not encounter unexpected failures or reversals.
Code Entry Mechanism: The code must be entered in-app via the Redeem a Code section, not at sign-up or checkout. Mettle's system only displays the Redeem a Code option after your first card payment has moved to Completed status. If you attempt to enter the code before this point, the option will not be visible. You cannot contact Mettle support to manually redeem the code if the in-app option is not available; you must wait for your payment to settle.
Code Format and Accuracy: The code HTLSB must be entered exactly as shown, with no extra spaces, characters, or case variations. Mettle's system is case-insensitive (HTLSB, htlsb, and HtLsB are all valid), but any typo or extra character will cause validation to fail. If you receive an error message stating "code invalid" or "code not recognised," verify that you have typed HTLSB correctly before contacting support.
One Code Per Account: You can only redeem one referral code per Mettle account. If you attempt to enter multiple codes, only the first valid code will be accepted; subsequent attempts will fail. If you have already redeemed a different code, you cannot later redeem HTLSB on the same account.
Credit Timeline: Mettle typically credits the £50 to your account within 30 days of successful code redemption. The exact timeline is not guaranteed; Mettle's terms state "typically within 30 days," which means they may take up to 30 days but often credit faster (7–14 days is common). If 30 days pass without the credit appearing, you have the right to contact Mettle support and request an investigation. Mettle is obligated to investigate and either credit the bonus or provide a written explanation of why you are ineligible.
Non-Transferable and Non-Refundable: The £50 referral bonus is non-transferable; you cannot gift it to another person or move it to a different account. If you close your Mettle account, any unredeemed bonus is forfeited. If the bonus has been credited, it remains in your account balance and can be used until you close the account, but it cannot be withdrawn as cash or transferred out. This is a standard fintech restriction and is clearly stated in Mettle's terms.
Mettle's Right to Modify or Terminate: Mettle reserves the right to modify, suspend, or terminate the referral programme at any time without notice. If Mettle decides to end the programme or retire code HTLSB, they are not obligated to honour codes that were entered before the termination date but credited after. In practice, Mettle honours codes that were validly redeemed before termination, but this is at their discretion. This is why it is important to complete your application and redeem the code promptly if you are interested in the bonus.
Mettle Account Terms Affecting the Referral Bonus: Broader Legal Context
The referral bonus does not exist in isolation; it is subject to Mettle's broader account terms and conditions, which govern how you can use your account and under what circumstances Mettle can close it or reverse credits. Understanding these broader terms is essential for protecting your bonus and your account.
Mettle's Terms of Service: When you open a Mettle account, you agree to Mettle's Terms of Service, which are published on Mettle's website and updated periodically. These terms cover account usage, payment processing, dispute resolution, liability limitations, and Mettle's rights to modify or terminate your account. The referral bonus is subject to these terms; if you breach them (e.g., using your account for illegal activity, money laundering, or fraud), Mettle can close your account and reverse any bonuses. This is a standard provision and is consistent with UK banking regulations.
Anti-Money Laundering (AML) and Know Your Customer (KYC) Compliance: Mettle is required by UK law to verify your identity and monitor your account for suspicious activity. If your account activity triggers AML concerns—for example, if you receive large unexplained deposits or make rapid transfers to multiple accounts—Mettle's compliance team may freeze your account, request additional documentation, or close your account without notice. If this happens, any unredeemed bonus is forfeited, and any credited bonus may be reversed. This is a regulatory requirement, not a Mettle discretion, and applies to all UK financial institutions.
Acceptable Use Policy: Mettle's Acceptable Use Policy prohibits using your account for certain activities, including fraud, money laundering, sanctions evasion, and other illegal purposes. If Mettle detects that you are using your account in violation of this policy, they can close your account immediately and reverse any bonuses. This policy is enforced through automated monitoring and manual review; if you are flagged, Mettle will typically contact you before taking action, but they are not obligated to do so.
Account Closure and Bonus Reversal: Mettle can close your account for any reason, including inactivity, compliance concerns, or business decisions. If your account is closed, any unredeemed referral bonus is forfeited. If the bonus has been credited and your account is closed, Mettle may reverse the credit and deduct it from your final balance. This is permitted under Mettle's terms and is a material risk. If you are concerned about account closure, maintain regular activity (at least one transaction per month) and ensure your account information is accurate and up to date.
Dispute Resolution and Consumer Rights: If you believe the referral bonus was not credited in error or if Mettle has incorrectly closed your account, you have the right to lodge a formal complaint with Mettle. Mettle's complaints procedure is outlined in their Terms of Service and typically involves submitting a written complaint to their support team. Mettle must respond within 8 weeks. If you are unsatisfied with Mettle's response, you can escalate your complaint to the Financial Ombudsman Service (FOS), which is a free, independent dispute resolution service for UK consumers. The FOS can order Mettle to credit your account or pay compensation if they find that Mettle has acted unfairly. This right is protected by UK consumer law and cannot be waived.
Data Privacy and GDPR: When you open a Mettle account and claim the referral bonus, Mettle collects personal data (name, address, tax identification, payment behaviour, transaction history) and processes it in accordance with the UK General Data Protection Regulation (UK GDPR). Mettle shares this data with NatWest Group, payment processors, and third-party service providers (including FreeAgent). Your data is retained for the duration of your account and for a period after closure for regulatory and compliance purposes. You have the right to access, correct, or delete your data; these rights are explained in Mettle's Privacy Policy. If you have concerns about how your data is used, review Mettle's Privacy Policy or contact their Data Protection Officer before opening an account.
Mettle Referral Programme: Regulatory Framework & Consumer Protection
The Mettle referral programme operates within a strict UK regulatory framework designed to protect consumers and ensure fair dealing. Understanding this framework provides confidence that the offer is legitimate and that you have legal recourse if something goes wrong.
FCA Regulation: Mettle is authorised and regulated by the UK Financial Conduct Authority (FCA) under registration number [verify with brand]. This means Mettle must comply with FCA rules on consumer protection, fair treatment, and transparent disclosure. The FCA requires that all promotional offers (including referral bonuses) are clearly disclosed, that terms are fair and not misleading, and that customers have access to dispute resolution if something goes wrong. Mettle's referral programme is subject to these FCA rules; if Mettle breaches them, you can report the breach to the FCA, and the FCA can take enforcement action.
FSCS Deposit Protection: Your Mettle account deposits are protected by the Financial Services Compensation Scheme (FSCS) up to £85,000 per account holder per banking group. This means if Mettle becomes insolvent or fails, the FSCS will compensate you for deposits up to £85,000. The £50 referral bonus, once credited to your account, is treated as a deposit and is covered by FSCS protection. This is a material consumer protection and distinguishes Mettle from unregulated fintech platforms that do not offer deposit insurance.
Consumer Rights Act 2015: The Consumer Rights Act 2015 provides statutory protections for unfair contract terms, misleading information, and unfair commercial practices. Mettle's referral terms must comply with this Act; any term that is unfair or misleading can be challenged and potentially struck down. For example, if Mettle's terms stated that the referral bonus could be reversed without cause, this would likely be considered unfair under the Act and could be unenforceable. This Act provides a baseline of consumer protection that applies regardless of what Mettle's terms say.
Distance Selling Regulations: Because Mettle is an app-based bank with no physical branches, the Distance Selling Regulations (part of the Consumer Contracts Regulations 2013) apply. These regulations require that Mettle provides clear information about the account terms, the referral bonus, and your cancellation rights before you commit to opening an account. Mettle must provide this information in a durable medium (e.g., email, PDF) that you can retain for your records. If Mettle fails to provide this information, you may have grounds to cancel your account within 14 days and claim a refund of any fees paid (though Mettle's account is free, so this is unlikely to apply).
Financial Ombudsman Service (FOS): If you have a dispute with Mettle about the referral bonus or any aspect of your account, and Mettle's internal complaints procedure does not resolve it, you can escalate to the Financial Ombudsman Service (FOS). The FOS is a free, independent dispute resolution service for UK consumers and small businesses. The FOS can investigate your complaint, determine whether Mettle has acted fairly, and order Mettle to take corrective action (e.g., credit your account, pay compensation). The FOS's decisions are binding on Mettle (though you can choose not to accept the decision). This is a powerful consumer protection and is available to you at no cost.
UseMyCode Regulatory Transparency Note: Mettle's referral programme is legitimate and operates within the UK regulatory framework. However, regulatory compliance does not guarantee that every individual redemption will succeed—factors like eligibility mismatches, account closures for compliance, or system errors can cause failures. If you experience a problem with the referral bonus that Mettle does not resolve, the FOS is your avenue for independent dispute resolution. UseMyCode is not a regulator and cannot intervene in disputes between you and Mettle, but we can help you understand your rights and escalation options.
About This Article
This article was written by the UseMyCode editorial team and last reviewed on 25 July 2026. UseMyCode independently verifies every referral link and discount code before publication. This page may contain affiliate links — see our editorial policy for details.
