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Graduate Guide

Student Loan Plan 5 explained without the usual jargon

Updated 13 April 2026. Plan 5 has become one of the most important net-pay questions for newer graduates in England because it quietly changes what people keep from each payslip. In the UK Net Pay model, Plan 5 uses a £25,000 repayment threshold and a 9% repayment rate on earnings above that level.

Why Plan 5 gets misunderstood

A lot of graduates know they “have a student loan” but are not sure which plan they are on, when deductions start, or how much difference it actually makes to take-home pay. That uncertainty is one reason salary decisions can feel confusing early in a career.

Plan 5 is important because it changes the repayment point. Even if the annual total does not look huge on first glance, it still affects monthly pay and can change how a pay rise feels. That is especially true when National Insurance and pension deductions are all happening at the same time.

The simple version

In this calculator, Plan 5 repayments are estimated at 9% on income above £25,000. That means if earnings are below the threshold, the projection shows no Plan 5 repayment. Once income moves above it, part of the extra pay begins to flow into loan deductions instead of take-home pay.

For example, someone on £27,000 is not repaying 9% of the whole salary. They are repaying 9% only on the amount above the threshold. That distinction matters because many people overestimate what is being taken or assume the deduction is flat.

Why graduates should model it, not guess it

The most common graduate mistake is comparing gross salary offers without checking what lands after tax, NI, and loans. A difference in headline pay can look impressive in a job advert but feel much smaller in a bank account.

  • Use the calculator if you are comparing your current salary with a new offer.
  • Use the comparison view if you want to test two jobs side by side.
  • Use the reverse view if you have a target monthly take-home figure in mind.
  • Keep pension and postgraduate loan settings realistic, because those can change the result too.

Plan 5 is not the whole story

One reason student loan content often feels frustrating is that it talks as if the loan is the only deduction that matters. In real life, it sits on top of other deductions. Someone paying Plan 5 may also be paying Income Tax, employee National Insurance, and pension contributions. That is why a combined calculator view is more useful than reading the threshold in isolation.

The real question is rarely “what is my Plan 5 repayment?” It is usually “what does my actual monthly pay look like once everything is taken together?”

When Plan 5 matters most

Plan 5 is most useful to model when:

  • you are moving from study into full-time work,
  • you are negotiating your first serious salary review,
  • you want to check whether overtime or bonus pay changes your monthly feel,
  • or you are working out whether a target take-home number is realistic.

In other words, Plan 5 matters most when you are making decisions, not when you are reading a generic threshold table.

How to use the calculator with Plan 5

Select Plan 5 in the student loan field, enter your realistic pay period, then check the annual and monthly views together. Annual numbers help you understand the total cost, but monthly numbers are usually where the emotional reality lands.

If your result looks lower than expected, do not stop at the loan line. Check tax, NI, and pension at the same time. That broader view is what makes the result useful.

Final thought

Plan 5 is one of those deductions that can look small in theory and still matter in practice. The difference is not just the amount itself. It is the way it stacks with everything else on a real UK payslip. That is exactly why it deserves its own article and its own calculator setting.