As of 13 August 2026, AI can compare Premium Bonds with savings accounts.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open the current NS&I Premium Bonds page and the HMRC savings interest guidance, then copy the relevant product, prize and tax information with their URLs.
   2. Open the savings providers' current product pages and gather the account name, AER or interest rate, access rules, term, withdrawal restrictions, balance limits and any conditions.
   3. Write down your amount to save, likely withdrawal date, required access, tax position, use of any relevant tax-free savings allowance and preference for certainty or variable returns.
   4. Paste those details into the prompt, replacing every bracketed slot, and ask the chatbot to produce the table, calculations and checks.
   5. Recalculate the interest examples with a calculator and compare every rate, term, restriction and tax statement in the answer against the pages you opened.
   6. Ask the chatbot to revise the comparison using only the checked figures, then save the source links beside the final conclusion before deciding whether either product suits you.

   Prompt

   Compare Premium Bonds with the savings accounts described below for a UK personal saver. Use only the facts and current source links I provide, and do not invent rates, prize assumptions, tax figures, eligibility rules or product terms. If a fact is missing or may have changed, mark it as needing a check rather than guessing.
   
   My situation:
   - Amount to save: [£ amount]
   - How soon I may need the money: [time horizon]
   - Access needed: [instant access, notice, or fixed term]
   - Current tax position relevant to savings interest: [basic-rate, higher-rate, additional-rate, or unsure]
   - Whether I have used any relevant tax-free savings allowance: [details or unsure]
   - Priority: [certainty, possible higher return, easy access, protecting capital, or a mixture]
   - Comfort with variable returns: [low, medium, or high]
   
   Products and sources:
   - Premium Bonds information from NS&I: [paste current details and URL]
   - Savings account name, provider, AER or interest rate, access terms and restrictions: [paste details and URL]
   - Any other account to compare: [paste details and URL]
   
   Produce:
   1. A side-by-side table of return method, certainty, access, tax treatment, capital protection, limits, restrictions and important conditions.
   2. Separate calculations for each product using my amount and time horizon. Show the formula, assumptions and any range or uncertainty. Do not present a Premium Bonds prize outcome as guaranteed interest.
   3. A list of facts that I must check on the current NS&I, HMRC and provider pages.
   4. A balanced conclusion saying which option better fits my stated priorities, and what would change that conclusion.
   5. State clearly that this is not professional advice and do not tell me to act on an unverified rate or tax rule.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.