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Plain-English guides to the rules behind the numbers: tax and pay, mortgages, savings, bills, and what each Budget changes. Every guide links to the calculators that let you check your own figures.

Budget and rule changes

Autumn Budget 2026: what changes for your money, and when

Higher tax on rental and savings income, a bigger trading allowance, a smaller BADR limit and a new minimum wage. What changes, and when.

Mortgages and property

How interest-only mortgage payments are worked out

The formula, monthly payments for common loan sizes, the comparison with repayment, and the savings needed to clear the loan.

Mortgages and property

How much mortgage can you get for £2,000 or £3,000 a month?

What £1,000 to £3,000 a month repays, the income a lender would want for it, and where your deposit fits in.

Mortgages and property

What a £25,000, £30,000 or £65,000 mortgage costs a month

A table of monthly repayments from £25,000 to £300,000, the interest over 15 and 25 years, and what £50 a month extra saves.

Mortgages and property

How much can I remortgage my house for, and what is my LTV?

Working out your loan to value, the bands lenders price by, the two limits on borrowing more, and whether switching pays.

Mortgages and property

How a Bank of England rate change hits your mortgage payment

Which mortgages follow Bank Rate, what a quarter point means per £100,000, and the bigger jump when a fix ends.

Cars

What does a car really cost a year?

Fuel, insurance, tax and servicing added up at current fuel prices, the cost per mile, and the cost most people leave out.

Mortgages and property

What moving house really costs in the UK

Stamp duty at different prices, average costs of buying and selling, and the total for a first-time buyer and a home mover.

Loans and debt

How loan repayments are worked out

Monthly repayments by amount and term, what the APR does, and how long a credit card really takes to clear.

Business

Late payment: charging interest on an unpaid invoice

Statutory interest at 8% plus base rate, the fixed recovery sums, worked examples by invoice size and days late.

Bills and energy

Are solar panels worth it? Cost, savings and payback

What a typical system costs, the two parts of the saving, and payback from 12 to 22 years in our examples.