# Balance Transfer Calculator — United Kingdom

> Check whether a planned payment clears an interest-bearing or zero-rate promotional balance after adding the transfer fee. GBP planning view; stated limitations apply.

Page: https://askcalculators.com/uk/balance-transfer/
Definition: https://askcalculators.com/uk/balance-transfer/definition.json
JSON Schema: https://askcalculators.com/uk/balance-transfer/schema.json
Version: 20.16.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/uk/balance-transfer/?balance=6000&feePercent=3&promoRate=0&promoMonths=18&monthlyPayment=350

## Inputs
- balance: Balance to transfer; type=money; required; default=6000; min=0; max=1000000000000
- feePercent: Transfer fee; type=percent; required; default=3; min=0; max=50
- promoRate: Promotional annual nominal rate; type=percent; required; default=0; min=0; max=100
- promoMonths: Promotional months; type=number; required; default=18; min=1; max=120
- monthlyPayment: Planned monthly payment; type=money; required; default=350; min=0; max=1000000000000

## Outputs
- transferFee: Transfer fee added to balance; format=currency
- startingBalance: Balance including transfer fee; format=currency
- paymentToClear: Level monthly payment to clear during promotion; format=currency
- interest: Interest during modeled promotion; format=currency
- remaining: Balance after promotional period; format=currency; primary

## Formula
monthly balance = maximum(0, previous balance × (1 + promo annual rate/12) − planned payment).

Inputs are converted to canonical units before evaluating this stated formula.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.