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The NINE common money mistakes couples make that could cost you thousands - including the little-known 'marriage allowance'

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Evans, L. (2026, September 28). The NINE common money mistakes couples make that could cost you thousands - including the little-known 'marriage allowance'. Daily Mail. https://www.dailymail.com/money/financial-planning/article-16164357/money-mistakes-couples-marriage.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

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Daily Mail · collected 2026-09-28 · by Lucy Evans

Quick Summary

Financial experts highlight nine common money mistakes made by couples that could cost them significantly over time. These include failing to discuss financial goals, which can lead to unmet objectives and hidden debt issues; only 25% of couples share all their financial information, while 26% share some. Another mistake is living together without a cohabitation agreement, leaving unmarried partners vulnerable if they split up, as the government's proposed reforms for protection are not yet law.
Written by AI on 2026-09-28, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

Financial experts highlight nine common money mistakes that couples often make, which can cost them significant sums over time. One such mistake is failing to discuss financial goals with each other, an oversight that can lead to a lack of joint accountability and hinder savings or homeownership objectives. Alice Haine from Hargreaves Lansdown emphasizes the importance of making decisions together, noting that only 25% of couples fully agree to share their financial plans. Another critical error is neglecting to claim the marriage allowance, a little-known tax exemption that can save couples money. Additionally, ignoring each other's risk tolerances when investing can lead to unsuitable portfolios and unnecessary stress. These mistakes underscore the need for better communication about finances in relationships to ensure long-term financial security.

Written for “Marriage Finances Mistakes” on 2026-11-03, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Marriage Finances Mistakes
Economy/Business · 1 article(s) covering the same event.

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How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
87
sentences that state something as happening or true
Uncertain
30%
26 of 87 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
69/100
Daily Mail's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Economy/Business
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-28 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Daily Mail · 8922 article(s) · 22 correction(s) detected
Running correction rate · 22 correction(s)

Who wrote this

Lucy Evans
4 article(s) here · 1 carrying a prediction
🔮 The amount that can be funnelled into a tax-free cash Isa every year will now stay at £20,000 instead of being slashed to £12,000 from April for savers under the age of 65.
🔮 You may have wondered if you are paid more than your colleagues, friends or neighbours – but are too polite to ask.
🔮 Britons think they will have to work for more than five years past their desired retirement age, fresh research reveals.
🔮 It's unlikely that forgetting to claim a lucrative tax exemption or ignoring each other's risk tolerances will be on the list.
Also by Lucy Evans
Nothing else under this byline is closely related to this article, so these are simply their most recent.

Topics

AJ Bell Aviva Haine Hargreaves Hargreaves Lansdown

Subjects

AJ Bell ORG · 1× Alice Haine PERSON · 1× Aviva ORG · 1× Coles PERSON · 1× Haine PERSON · 1× Hargreaves PERSON · 1× Hargreaves Lansdown ORG · 1× Sarah Coles PERSON · 1× Vanessa Lloyd Platt PERSON · 1×

Narrative

Assets held by the higher taxpayer Capital gains tax (CGT) was thrust into the spotlight last week as Prime Minister Andy Burnham was reported to be considering raising rates as high as 45 per cent. But there is one mistake couples make that is costing them money now, regardless of what is announced at the Budget.
framing: mixed · carried by 1 article(s) · first seen 2026-09-28
🔮 It's unlikely that forgetting to claim a lucrative tax exemption or ignoring each other's risk tolerances will be on the list.

Claims (87 extracted, 26 hedged)

Ask anyone in a relationship for some of the most common mistakes that they and their partner make and they'll probably say it's to do with poor communication or perhaps not prioritising each other. asserted
it → ask → other
It's unlikely that forgetting to claim a lucrative tax exemption or ignoring each other's risk tolerances will be on the list. uncertain
forgetting → forget → list
But most couples inadvertently make a whole string of financial mistakes that could cost them hundreds of thousands of pounds over the course of a long relationship. uncertain
that → make → relationship
Here, financial experts share nine of the most common slip-ups that couples across the country are making – and what you must do now to avoid falling foul. asserted
you → share → what
Failing to discuss money goals with each other Talking about money with a partner can be awkward. asserted
Talking → fail → partner
But avoiding it means you could be less likely to reach your goals because it can create a financial blind spot between you. uncertain
it → avoid → you
Alice Haine, of investment platform Hargreaves Lansdown, says: 'Couples who make decisions together are more likely to be on track with their savings, home ownership goals and their pensions.' Sharing goals creates a joint financial accountability between partners. asserted
Sharing → say → partners
However, just 25 per cent of couples agree to tell each other everything about their finances while 26 per cent share some information, Hargreaves' research reveals. asserted
research → agree → information
Haine recommends thinking of common goals for your money, whether that's a short-term goal such as a summer holiday next year or a medium target like a new sofa or refurbishing your kitchen. asserted
that → recommend → kitchen
Avoiding talking about money means you could be less likely to reach your goals because it can create a financial blind spot between you. uncertain
it → avoid → you
Equally, hiding money troubles can quickly lead to them spiralling out of control. asserted
them → hide → control
Two in five debtors are keeping their growing burden a secret from someone close to them, according to research by financial firm Aviva. uncertain
debtors → keep → Aviva
Sarah Coles of AJ Bell says: 'Not being honest about money problems can feel like you're protecting your partner. asserted
you → say → partner
But the longer it goes on, the worse it gets.' asserted
it → go → ?
Living together without an agreement More than 3.5million unmarried couples who cohabit are risking a financial disaster if they fail to have a key document in place. asserted
they → live → place
If you are unmarried and break up, you have no automatic protection, no matter how long you have been together. asserted
you → break → protection
The Government is working on a set of reforms to give cohabiting couples more protections, but these plans are far from becoming law. asserted
plans → work → protections
For now, however, a cohabitation agreement could save you thousands of pounds. uncertain
agreement → save → pounds
This is a legal document that sets out who owns what, who gets joint assets in the event of a split and how property will be divided. asserted
property → set → split
It can lay out who owns pieces of furniture, who will keep a shared pet and how joint savings will be distributed, for example. asserted
savings → lay → example
You don't need to go to a solicitor to create one, but it is advised that you do. asserted
you → need → one
At the very least, couples should write out their intent on a piece of paper and sign it in front of a witness, says divorce lawyer Vanessa Lloyd Platt. asserted
Platt → write → witness
But remember, a court can disregard a cohabitation agreement if it isn't deemed fair or reasonable. asserted
it → remember → agreement
Not claiming useful marriage allowance If you and your spouse earn vastly different amounts, you may be able to claim for marriage allowance. uncertain
you → claim → allowance
This tax trick allows married couples – where one spouse earns below the £12,570 income tax threshold – to share their allowances. asserted
spouse → allow → allowances
The lower earner can 'give' the higher earner, who must be a basic-rate taxpayer, up to £1,260 of their unused personal allowance each year. asserted
who → give → allowance
This shields a larger portion of the higher earner's income from taxes, saving as much as £252 a year. Thinking about your pensions separately When you're saving for retirement through your employer and building up various pensions, it may seem easier to keep your savings separate from those belonging to your partner. uncertain
it → shield → partner
But you should think about your pensions together, Coles says. asserted
Coles → think → pensions
It could save you tens of thousands of pounds, in the long run. uncertain
It → save → run
For example, if you give up work or go part-time to look after children, your partner could consider paying into your pension. uncertain
partner → give → pension
This way, you'll still get 20 per cent tax relief on the savings and you are protected for later life in case the relationship goes south. asserted
relationship → get → life
If you and your spouse earn vastly different amounts, you may be able to claim for marriage allowance Or, if you are both working and one of you is a higher taxpayer than the other, you may consider prioritising the higher earner's contributions. uncertain
you → earn → contributions
This is because you will benefit from a higher rate of tax relief, which will boost the overall pension pot. asserted
which → benefit → pot
When it comes to retiring, one of the biggest mistakes couples make is opting for a single annuity over a joint one. asserted
couples → come → one
Annuities provide a guaranteed income for life and can be taken out individually or as a couple. asserted
Annuities → provide → couple
Single annuities typically pay higher amounts, but when you die the payments stop. asserted
payments → pay → amounts
If you instead take out a joint annuity, then after your death your partner will continue to receive a portion of your income. asserted
partner → take → income
This might be all or half, for example, depending on the policy you select. uncertain
you → depend → policy
Not making full use of savings allowances If you are lucky enough to be one of the 1.8million people who max out their £20,000 individual savings account (Isa) tax-free allowance each year, you could make use of your partner's allowance, too. uncertain
you → make → allowance
For example, let's say you've saved £20,000 into a cash Isa and you have an extra £5,000 to save. asserted
you → let → 5,000
…and 47 more, not listed.
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