What happens to my benefits if my partner moves in?
When a partner moves in, you are required to report the change to DWP within one month. The household type change affects Universal Credit significantly, both the standard allowance and the way income is assessed will change. This page explains what happens in practice.
Universal Credit moves to a joint claim
When you form a couple, Universal Credit must be claimed jointly. The joint standard allowance for a couple where both are 25 or over is £666.97 a month in 2026/27, compared to £424.90 for a single person. However, both partners' income and capital are now assessed together. If your partner earns or has significant savings, the combined assessment may reduce or remove the UC award even though the couple allowance is higher. You must report the change within one month of cohabiting.
Capital and savings become joint
Once in a joint UC claim, savings are assessed jointly. If your partner has £8,000 in savings and you have £3,000, the combined £11,000 puts the household in the tariff income band. The tariff income rule adds £4.35 a month in assumed income for every £250 (or part of £250) above £6,000, so £5,000 excess generates £87.00 a month in assumed income (20 bands), reducing UC accordingly.
Council tax, the single person discount ends
If you have been claiming the 25% single person council tax discount, that stops when a second adult moves in. Depending on your income and your council's local scheme, you may still qualify for means-tested Council Tax Reduction, but the 25% discount alone ends on the first day both adults live there. It is worth applying for CTR promptly to avoid a gap.
Child Benefit and other payments
Child Benefit is paid to the person who claims it and is not affected by a partner moving in directly. However, if your partner has adjusted net income above £60,000, the High Income Child Benefit Charge may start to apply. Check the HICBC calculator if the new partner earns above that threshold. Benefits that are in your name only, like PIP or Carer's Allowance, are also not directly affected by a partner moving in, though they can affect how joint UC is calculated.
Try the free calculator
Free Universal Credit calculator 2026/27 UK
Free Universal Credit calculator for 2026/27. Estimate UC from earnings, rent, children and savings, including the £6,000, £16,000 and tariff income rules.
Council Tax Reduction estimator
Free Council Tax Reduction calculator for 2026/27: estimate help from your bill, income, benefits and savings. Each council sets its own scheme, so check yours.
HICBC calculator 2026/27 UK
Calculate the High Income Child Benefit Charge for 2026/27. Check the £60,000 to £80,000 threshold band and how much Child Benefit you keep.
Universal Credit savings limit calculator 2026/27 UK
Check how savings affect Universal Credit in 2026/27. See the £6,000 lower limit, £16,000 upper limit and £4.35 per £250 tariff income rule.
Related guides
Universal Credit explained 2026/27, rates, capital limits and working-family rules
Universal Credit guide for 2026/27: rates, work allowance, £6,000 and £16,000 capital limits, tariff income, savings rules and what working families should check next.
Child Benefit and HICBC thresholds 2026/27
Child Benefit 2026/27: £27.05/week first child. HICBC threshold £60,000 adjusted net income, charge claws back 1% per £200 over threshold, reaching 100% at £80,000. Pension contributions can reduce adjusted net income below the threshold.
Independent guide only. Written using published 2026/27 DWP and HMRC figures. This is not an official DWP or HMRC tool and does not constitute an entitlement decision. Figures shown are illustrative: actual awards depend on individual circumstances. For case-specific guidance, contact Citizens Advice or a welfare-rights adviser. Methodology · Editorial standards