FinSight AIGeneral information, not advice. This guide explains how things usually work so you can understand your own documents. It is not financial, legal, tax or pension advice and does not tell you what to do. Rules differ by country and change over time: check the official sources linked here, or speak to a free, impartial service or a regulated adviser.
The parts almost every bill has
- Account number and customer reference
- Your ID with the company. Quote it whenever you call, write or complain.
- Bill date and billing period
- The billing period is the dates the bill covers, for example 1 March to 31 March. Check it does not overlap with your last bill, or you may be charged twice for the same days.
- Previous balance and payments received
- What you owed last time, and what you have paid since. If a payment you made is missing, that is worth raising straight away.
- New charges
- What this period cost. This is usually split into fixed charges, charges for what you used, and extras.
- Tax
- VAT in the UK and Europe, or sales and utility taxes in the US. It is added on top of the charges.
- Total due, due date and how you pay
- The amount to pay and the date it must be paid by. If you pay by Direct Debit or autopay, the bill usually says when the money will be taken.
- In credit or in debit
- “In credit” (sometimes shown as CR) means the company owes you money. “In debit” or “amount owed” means you owe them.
Energy bills: the extra parts
- Meter readings: estimated (E) or actual (A)
- An actual reading comes from your meter. An estimated reading is a guess by the supplier. Several estimated bills in a row can build up a large over- or under-charge, so giving your own reading regularly keeps the bill accurate.
- Units used (kWh)
- Energy is charged in kilowatt-hours (kWh). Units used = current reading − previous reading.
- Unit rate
- The price of one kWh, for example 25p or 16¢.
- Standing charge
- A fixed daily charge for being connected, paid even if you use nothing.
- Tariff
- The name of your price plan. A fixed tariff keeps the same rates until an end date. A variable one can change. When a fixed deal ends you are often moved to a different, sometimes higher, rate.
Worked example (made-up numbers)
| Line | How it is worked out | Amount |
|---|---|---|
| Standing charge | 30 days × 50p a day | £15.00 |
| Electricity used | Readings 12,340 → 12,540 = 200 kWh × 25p | £50.00 |
| Subtotal | £15.00 + £50.00 | £65.00 |
| VAT at 5% | £65.00 × 0.05 | £3.25 |
| Total | £68.25 |
Try it on your own bill. Multiply the units by the unit rate, and the days by the standing charge. If your numbers don't match the bill, ask the company to explain the difference.
Phone, broadband and TV bills
- Monthly plan price: the fixed price of your package.
- Out-of-bundle or extra charges: calls, data or services not included in the plan.
- One-off charges: set-up, equipment or late-payment fees.
- Contract end date: after it, the price can change. Many people pay more than they need to because they are “out of contract” and don't realise it.
Water bills
With a water meter, the bill works like an energy bill: units used (usually cubic metres) × a rate, plus any fixed charge. Without a meter, the bill is often a fixed yearly amount, sometimes based on the value of your home. Many bills include both clean water and wastewater (sewerage).
Five quick checks before you pay
- Is it your name, address and account?
- Do the billing dates follow on from your last bill, with no overlap?
- Are the meter readings actual (A)? If they are estimated (E), compare them with your meter.
- Do your payments show as received?
- Are there charges you don't recognise? See how to check a bill for mistakes.