Most UK dentists finish training with more than one student loan running at the same time. A typical path leaves you with an undergraduate maintenance and tuition loan plus, for many, a separate postgraduate loan, and the rules differ between them. Each loan has its own threshold and its own repayment rate, and because repayments are taken on your total income, they interact directly with your tax position and your take-home pay for years.
This guide is the planning companion to our student loan repayment calculation guide for dentists. Here we focus on the strategy: which plan you are on, the current 2026/27 thresholds, how repayments are collected for employed versus self-employed dentists, the Self Assessment timing traps, and the genuine levers that change how much you actually pay.
Understanding UK Student Loan Plans for Dentists
The plan you repay under depends on where you studied and when your course started, not on what you studied. A dentist who trained in England, then took a postgraduate qualification, can easily hold two loans on two different plans at once. When that happens, you repay on both at the same time, each measured against its own threshold.
The newest plan matters for younger dentists in particular. Plan 5 applies to students in England who started their course on or after 1 August 2023, and the first Plan 5 repayments fall due from 6 April 2026. It carries the lowest threshold of the undergraduate plans, so newly qualified dentists on Plan 5 start repaying earlier in their income than colleagues on older plans.
Plan 1 (Older English, Welsh and Northern Irish students)
Generally applies if you started an undergraduate course before September 2012. Repayment is 9% of income above the threshold, with interest at the lower of RPI or the Bank of England base rate plus 1%.
Plan 2 (English and Welsh students from 2012 to 2023)
The plan most current dental graduates hold if they started between September 2012 and July 2023. Repayment is 9% of income above the threshold, with interest of RPI plus up to 3% depending on income.
Plan 4 (Scottish students)
Applies to students funded by the Student Awards Agency Scotland. Repayment is 9% above the threshold, and the threshold is higher than the other undergraduate plans.
Plan 5 (English students from August 2023)
The default plan for English starters from 1 August 2023, with repayments beginning from 6 April 2026. Repayment is 9% of income above the threshold, and the threshold is the lowest of the undergraduate plans.
Postgraduate Loan
Many dentists also carry a postgraduate loan for a master's or doctoral qualification. This repays at 6% of income above its threshold, and it runs alongside any undergraduate plan rather than replacing it.
Student Loan Thresholds and Rates for 2026/27
The figures below apply from 6 April 2026. A dentist holding both an undergraduate loan and a postgraduate loan compares income to each threshold separately and adds the two repayments together.
| Plan | Who it covers | Annual threshold (2026/27) | Repayment rate |
|---|---|---|---|
| Plan 1 | Pre-2012 undergraduate starters | £26,900 | 9% |
| Plan 2 | 2012 to 2023 English and Welsh starters | £29,385 | 9% |
| Plan 4 | Scottish students | £33,795 | 9% |
| Plan 5 | English starters from August 2023 | £25,000 | 9% |
| Postgraduate Loan | Master's and doctoral loans | £21,000 | 6% |
Always confirm the current figure for your own plan before relying on it, as thresholds are reviewed each year. The Plan 5 threshold is held at £25,000 with annual increases in line with RPI intended from April 2027 onwards.
How Repayments Are Collected: Employed vs Self-Employed Dentists
The mechanics differ depending on how you work, and this is where dentists are most often caught out.
Employed associates and salaried roles
If you are an employee, whether in a practice, a community service or a hospital post, repayments are taken through payroll each pay period. Your employer deducts 9% (or 6% on a postgraduate loan) of the pay above the threshold for that period. This is automatic, but it is calculated employment by employment, which creates the multiple-employment issue covered below.
Self-employed dentists and practice owners
Most associate dentists are self-employed, and here repayments are not taken through payroll at all. Instead they are calculated through Self Assessment on your total income for the year, and paid alongside your income tax and National Insurance after you file. There is no monthly deduction, so the full year's repayment lands as part of your tax bill.
For a self-employed dentist, the income used for the calculation is broad. It picks up your taxable profits from associate or practice work, any employment income, and unearned income such as dividends and interest above the usual allowances. If you draw profit from an incorporated practice as dividends, those dividends count as income for student loan purposes, so incorporating does not remove the repayments. We cover the wider picture in our associate dentist tax guide.
Self Assessment: Timing and Double-Counting Points
Two timing points trip dentists up most often.
Repayments fall due with your tax bill
A self-employed dentist's repayments are settled when the tax return is filed and paid, not spread across the year. That means the amount should be set aside through the year, in the same way you would reserve for income tax. Because student loan repayments are added to the Self Assessment liability, they also feed into the figure used for payments on account in some cases, so the cash flow can be lumpier than a salaried colleague's monthly deduction.
Multiple employments and mixed income
If you work as an employee at more than one practice, each employer applies the threshold to its own payroll only. Two part-time roles can each sit near or below the threshold individually while your combined income is well above it, so you under-repay through the year and the balance is squared up at Self Assessment. The reverse can also happen across a year of changing roles, leading to a genuine overpayment that can be reclaimed from the Student Loans Company. A dentist who mixes employed and self-employed work has both sets of rules running at once, which is exactly the situation worth modelling in advance.
A Worked Example for 2026/27
Consider a self-employed associate dentist with total income of £70,000 for 2026/27, holding a Plan 2 undergraduate loan and a postgraduate loan. Both are calculated through Self Assessment on the same income.
- Plan 2: (£70,000 minus £29,385) multiplied by 9% equals £3,655
- Postgraduate Loan: (£70,000 minus £21,000) multiplied by 6% equals £2,940
- Combined repayment for the year: £6,595
That is roughly 9% of gross income disappearing in loan repayments alone, on top of income tax and National Insurance, and all of it paid from taxed income with no relief.
Now apply a genuine planning lever. Suppose the same dentist makes a £10,000 personal pension contribution. Pension contributions reduce the income on which repayments are assessed, so the calculation now runs on £60,000.
- Plan 2: (£60,000 minus £29,385) multiplied by 9% equals £2,755
- Postgraduate Loan: (£60,000 minus £21,000) multiplied by 6% equals £2,340
- Combined repayment for the year: £5,095
The pension contribution cuts the year's repayments by £1,500, and that sits on top of the income tax relief the contribution attracts in its own right. The pension money is still yours, working toward retirement, rather than gone in repayments. This is the single most reliable lever a dentist has, and it is covered in detail in our dentist pension contributions guide.
Genuine Planning Levers
Student loan repayments cannot be made tax-deductible, but the income they are measured against can be managed legitimately.
Pension contributions
As the worked example shows, personal pension contributions reduce assessable income for student loan purposes as well as for income tax. For a dentist who would be contributing to a pension anyway, the reduction in repayments is an additional return on the same money. The usual annual allowance and tax relief rules apply, so the contribution needs to fit your wider pension position.
Timing of incorporation and profit extraction
Incorporation does not remove student loan repayments, because dividends count as income for the calculation. What changes is the timing and the mix. An incorporated owner can influence which year income falls into by deciding when to declare dividends, and can pay employer pension contributions from the company, which do not count as personal income for repayment purposes. The decision to incorporate should never turn on student loans alone, but they belong in the modelling, because moving from sole trader profits to a salary and dividends mix shifts how and when repayments arise.
Voluntary overpayments
Some higher-earning dentists consider clearing the balance early to save interest. This only helps if you would otherwise repay the loan in full before it is written off. Many dentists never clear the balance within the write-off period, in which case voluntary overpayments simply hand money to a debt that would have been cancelled anyway. Check your balance, your plan's write-off date and your projected repayments before paying anything extra.
Long-Term Planning
Because repayments track income, they rise as your career progresses. A dentist moving from associate work into practice ownership, or from part-time to full-time, will see combined repayments climb, which eats into the headline benefit of the higher income. Building the repayment into your projections, rather than treating it as an afterthought, gives a truer picture of take-home benefit at each stage.
Outstanding loans also do not vanish at retirement. If a balance remains, pension income drawn above the threshold can keep repayments running, so retirement income planning and loan write-off dates are worth lining up together.
Getting Professional Help
Student loan planning sits inside your wider tax position rather than apart from it. It is most valuable to take advice when you are structuring income across employed and self-employed work, weighing incorporation, setting pension contributions for the year, or approaching a write-off date. A dental accountant can model the repayment alongside income tax and pension planning so the levers pull in the same direction.