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Payment Planner UK · existing guide

Monthly Reserve for the January Tax Deadline

Turn the balancing payment and first POA into a transparent monthly reserve target.

Decision boundary

A reserve is a cash-flow aid, not a payment plan or HMRC agreement.

What to check

Official source

Open GOV.UK payments-on-account guidance

Use the existing calculator

Get the payments on account checklist after confirming your email.

One confirmation email. No HMRC submission or personalised tax advice.