A New Tax on ISAs? What's Actually Happening

Finance-focused summary (ISAs / potential tax change)

Claim (not yet official): “Sources close to the government” say UK Chancellor Rachel Reeves may announce a 22% charge on interest earned on cash inside a Stocks & Shares ISA (and potentially innovative finance ISAs) starting April 2027.

Key context driving the change

• Cash ISA contribution limit is reported to fall from £20,000 to £12,000 for people under age 65, starting April 2027.
• Government concern: investors could otherwise keep cash earning interest inside a Stocks & Shares ISA by using cash-like products (e.g., money market funds).

Current status / caution

• The narrator stresses nothing is confirmed by HM Treasury.
• The Telegraph is described as the only initial source for the 22% figure.
• Therefore details such as the exact tax rate, scope, and collection mechanism are speculative.

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Previously reported / referenced HMRC guidance (context for how it could work)

The video references HMRC guidance published in late November 2025, indicating:

• No transfers from Stocks & Shares ISAs / innovative finance ISAs into Cash ISAs as a workaround.
• A test to determine whether an investment is eligible for holding in a Stocks & Shares ISA versus being treated as cash-like.
• A charge on interest paid on cash-like holdings within Stocks & Shares ISAs / innovative finance ISAs.

New (alleged) detail: the discussion includes a specific 22% figure.

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Key numbers & rates mentioned

• April 2027: potential 22% charge on interest earned on cash within Stocks & Shares ISAs (alleged).
• April 2027 Cash ISA limit (under 65): £12,000 (down from £20,000)
• Cash ISA limit (65+): still £20,000
• General ISA contribution rules mentioned:
  • Overall ISA contribution limit: £20,000 per tax year
  • Lifetime ISA: £4,000 per tax year
• Savings interest tax backdrop (UK, general):
  • Basic-rate interest tax: 20% → 22%
  • Higher/additional-rate could reach 47%
• Personal savings allowances (current, before any change):
  • £1,000 for basic-rate taxpayers
  • £500 for higher-rate taxpayers
  • £0 for additional-rate taxpayers
• Premium Bonds: up to £50,000 per person to potentially avoid tax on interest-like returns (as stated by the narrator).

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Instruments / entities mentioned

ISA types

• Cash ISA
• Stocks & Shares ISA
• Innovative Finance ISA
• Lifetime ISA

Cash-like / interest-earning investments discussed

• Money market funds (explicitly mentioned)
  • Narrator warning: no FSCS protection
• Bond funds
  • Could include anything from 3-month expiry to multiple years (duration may matter)

Platforms / providers

• The role of ISA providers/platforms is highlighted as an open question, especially regarding how any charge would be collected and reported.

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Potential “loophole” scenario discussed (speculative)

• A Telegraph-sourced (government insider) suggestion proposes that if a Stocks & Shares ISA holds at least some investments like shares, it may be possible to keep a large portion in money market funds without triggering the anti-circumvention rule.
• Example given: £19,999 in a money market fund plus £1 in a company share.

Important cautions noted

• No confirmation that this loophole will work.
• Even “cash-like” products such as money market funds can carry risk, and the narrator notes they lack FSCS protections.

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Open questions / uncertainties explicitly raised

The narrator highlights unresolved issues, including:

• Whether the 22% charge applies inside the personal savings allowance or is separate.
• Whether platforms/providers deduct tax before you see interest, or whether investors must self-report to HMRC.
• How “cash-like” will be defined (e.g., money market funds vs short/long bond funds; and whether duration matters).
• Whether short-term cash versus long-term cash is treated differently.
• Whether drip feeding contributions changes treatment.
• How accumulating vs distributing money market fund structures would be treated.

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Risk / investor-impact themes emphasized

• Administrative and cost risk: if platforms must operate withholding/charges, they may add fees.
• Portfolio-risk considerations: money market funds and bond funds are not truly risk-free; classification could affect risk-managed/retirement portfolios.
• Behavioral impact: the policy aims to push investment rather than holding cash, but may instead increase confusion and fear.

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Methodology / framework (none formal; classification idea only)

No formal step-by-step process was provided. The closest “process” described is:

• Use an HMRC test to determine whether something in a Stocks & Shares ISA is cash-like vs eligible for ISA treatment.
• Then apply a charge on interest attributable to that cash-like component.

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Disclosures / disclaimers

The video repeatedly emphasizes:

• Nothing is official yet
• The Telegraph is the only source presented for the 22% figure
• The loophole and finer details are speculation until confirmed

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Presenter / source attribution (as mentioned)

• Presenter/narrator: not named in the subtitles
• Sources referenced:
  • The Telegraph (primary source for the “22%” claim and the loophole discussion)
  • HMRC guidance (published late November 2025)
  • Government / “sources close to the government” (unnamed)
  • Chancellor: Rachel Reeves