GLM 5.2 vs GPT-5.6 Lunafor everyday maths

No exact figure exists because ISA returns fluctuate based on unpredictable market conditions, interest rates, and whether you hold cash or stocks. 

Assuming no further contributions, a defensible range is **£13,400 to £17,900**:
* **£13,400:** Assumes a Cash ISA averaging 3% annual interest.
* **£17,900:** Assumes a Stocks & Shares ISA averaging 6% annual growth.

No exact figure exists: it depends on whether it’s a cash or investment ISA, future interest/market returns, fees, and withdrawals. As an illustration, assuming no further contributions or withdrawals and annual **net nominal growth of 0%–7%**, £10,000 could become approximately **£10,000–£19,672** after 10 years (compounded annually). This is not a forecast or guarantee; investments could also fall in value.