VAT Loan for Dental Practices: Do You Actually Need One?

Most dental practices pay no VAT at all

Before reading further, check whether your practice is actually VAT-registered. The supply of dental care by a person on the GDC dentists' register or the dental care professionals register is exempt from VAT under VATA 1994 Schedule 9 Group 7. Exempt means outside the VAT system entirely, not zero-rated. Exempt turnover does not count toward the £90,000 registration threshold, generates no output VAT on a return, and creates no obligation to file quarterly VAT returns.

A practice earning £600,000 in combined NHS and private dental fees, with no cosmetic or aesthetics revenue, owes nothing on a VAT return and has no VAT bill to fund. The overwhelming majority of single-surgery NHS and mixed NHS/private practices are in this position. A VAT loan is simply not relevant to them.

This page is written for the minority of practices that do have a real VAT liability: those with standard-rated cosmetic or aesthetics turnover above the £90,000 registration threshold, and partially exempt practices facing a Capital Goods Scheme adjustment.

Which dental practices actually pay VAT?

Three distinct circumstances create a genuine VAT liability for a dental practice.

Mixed or cosmetic-heavy practices above the £90,000 registration threshold

When a practice provides facial aesthetics (Botox, dermal fillers administered for cosmetic purposes), tooth whitening assessed as purely aesthetic, or other treatments whose principal purpose is not "protecting, maintaining or restoring the health of the person concerned" (VATHLT2450, VATHLT2480), those supplies are standard-rated at 20%.

Once the taxable (non-exempt) turnover from those cosmetic treatments exceeds £90,000 in any rolling 12-month period (raised from £85,000 on 1 April 2024 under VATA 1994 Schedule 1), the practice must register for VAT and charge 20% on the cosmetic element. NHS dental fees and private dental treatment fees remain exempt and do not count toward the threshold.

The boundary between exempt dental treatment and standard-rated cosmetic treatment is facts-specific and is one HMRC examines closely, particularly for facial aesthetics and tooth whitening (VATHLT2480 is explicit that each case turns on its own facts). A practice that markets and delivers Botox or fillers for purely cosmetic purposes, with no therapeutic dimension, has standard-rated supplies. The VAT status of facial aesthetics is covered in detail on the facial aesthetics VAT page.

For a VAT-registered mixed practice, the quarterly net VAT payable is the output VAT on cosmetic invoices, minus the fraction of input VAT recoverable under the partial-exemption rules (since most dental business expenditure relates to exempt dental supplies, only a proportion of input VAT is deductible). It is this net quarterly cash outflow that a VAT loan is designed to bridge.

Partially exempt practices with an annual partial-exemption adjustment

A practice with both exempt dental supplies and standard-rated cosmetic supplies is partially exempt (VAT Regulations 1995 SI 1995/2518 regulations 99 to 110). Throughout the year it uses a provisional apportionment (the standard method) to calculate how much input VAT it can recover on shared costs. At the end of each tax year it then performs an annual adjustment to settle the difference between the provisional recoveries and the true annual fraction.

If the taxable (cosmetic) proportion rose during the year, the adjustment releases additional input VAT recovery, reducing the annual liability. If it fell, the adjustment creates an additional liability on the year-end return. The annual adjustment can create an unexpected VAT payment on top of the regular quarterly bills, and it is one further cash-flow event that a short-term facility can cover.

The de minimis relief for partial exemption (£625 per month or £7,500 per year, provided the exempt input VAT is no more than 50% of all input VAT) means a practice with very small cosmetic turnover may be able to treat itself as fully taxable and recover all input VAT. However, as cosmetic turnover grows, partial exemption becomes the default position. The full mechanics are on the VAT registration threshold page.

Partially exempt practices running a Capital Goods Scheme refurbishment

Where a partially exempt practice spends £250,000 or more (VAT-exclusive) on land or a building (surgery refurbishment, extension, new premises fit-out), the Capital Goods Scheme applies under VAT Regulations 1995 regulations 112 to 116. The practice initially reclaims input VAT based on its taxable-use fraction at the time. That position is then adjusted annually over ten intervals.

If the taxable (cosmetic) fraction falls in a later interval compared with the interval when VAT was originally reclaimed, the practice must repay a portion of previously reclaimed input VAT on that year's VAT return. The adjustment is predictable once the practice files its annual partial-exemption calculation, which gives enough lead time to arrange a short-term facility. But the repayment itself is a genuine, large, dateable cash outflow. Full CGS mechanics are covered on the capital goods scheme page. This page focuses on the cash-management question of bridging that outflow.

The payment deadline and the cash-flow gap

A quarterly VAT return must be filed and paid one calendar month and seven days after the end of the accounting period (verified at gov.uk/vat-returns/pay-your-vat-bill, 2026-07-09). The quarter endings and their due dates are:

Quarter end	Payment due
31 March	7 May
30 June	7 August
30 September	7 November
31 December	7 February

The window between the quarter end and the payment deadline is 37 days. For most VAT-registered practices the cosmetic income that generates the output VAT has already been collected in cash (cosmetic patients typically pay on the day of treatment). The cash-flow problem is not a timing gap on the income side: it arises when the practice has spent its reserves on another priority (equipment purchase, leasehold improvement, a large payroll month), when a CGS adjustment arrives on top of the normal quarterly bill, or when the annual partial-exemption adjustment creates an unexpected additional payment.

The consequences of missing the deadline without an arrangement in place are severe, and the penalty arithmetic is worth understanding in detail.

HMRC late-payment penalties and interest: the cost of paying late

From 1 January 2023, HMRC replaced the old default-surcharge regime with a new system for late VAT payments under Finance Act 2021 Schedule 26. The new regime has three components, each operating on a different timeline.

Late-payment interest (from day one)

Interest accrues on unpaid VAT from the first day after the payment due date. The rate floats at Bank of England base rate plus 4 percentage points. The current rate is 7.75% per annum from 9 January 2026 (verified at the HMRC interest rates page, gov.uk, 2026-07-09). This rate will move when the Bank of England base rate changes. At 7.75%, a £10,000 unpaid VAT bill accrues approximately £2.12 in interest per day.

This interest is not deductible for tax purposes. HMRC late-payment interest on VAT is a penalty-equivalent charge and cannot be claimed as a trading expense by an unincorporated practice or as a deductible loan-relationship debit by a dental company.

First late-payment penalty (days 16 to 30)

There is a 15-day grace period. If the VAT is paid within 15 days of the due date, no penalty applies beyond the accruing interest. If the bill is still unpaid at day 16, HMRC charges a first late-payment penalty of 3% of the amount outstanding at day 15. A practice that pays between day 16 and day 30 owes the day-one interest plus this 3% penalty.

Escalation at day 31

If the bill remains unpaid at day 31, the first penalty increases to 6%: the original 3% charged at day 15 plus a further 3% on the amount outstanding at day 30. A second penalty then begins to accrue daily at an annualised rate of 10% on the outstanding balance until the bill is fully paid.

(Source: gov.uk "How late payment penalties work if you pay VAT late", verified 2026-07-09.)

The 3% and 3% penalty rates, and the 10% annualised daily second penalty, are statutory figures under Finance Act 2021 Schedule 26. The interest rate of 7.75% is the current figure; it floats with the base rate and will change when the Bank of England adjusts it.

Worked example A: a £48,000 quarterly VAT bill paid 45 days late

A mixed cosmetic and dental practice has a quarterly VAT liability of £48,000 (output VAT on cosmetic treatments, net of the recoverable portion of input VAT). The bill is due 7 May. The practice does not pay until 21 June, which is 45 days after the deadline.

Option 1: Pay 45 days late with no arrangement in place

• Late-payment interest (day 1 to day 45) at 7.75% per annum: daily rate = £48,000 x 7.75% / 365 = £10.19 per day. Over 45 days: £459.
• First late-payment penalty at day 15: 3% of £48,000 = £1,440.
• Escalation at day 31: additional 3% of £48,000 = £1,440. First penalty now totals 6% = £2,880.
• Second penalty (days 31 to 45, 14 days): £48,000 x 10% / 365 x 14 = £184.
• Total penalty and interest cost: approximately £3,523. None of this is tax-deductible.

Option 2: Three-month VAT loan at 8% per annum (illustrative rate, not a quote)

• Interest on £48,000 over 3 months at 8% per annum: £48,000 x 8% x 3/12 = £960.
• No HMRC penalties. Interest is tax-deductible as a trading expense.
• After-tax cost at 25% corporation tax: £960 x 75% = £720 net.

Option 3: HMRC Time to Pay over 3 months (if approved and maintained)

• Interest at 7.75% per annum for 3 months: £48,000 x 7.75% x 3/12 = £930.
• If TTP is agreed and maintained: lower or no late-payment penalties apply.
• If TTP is rejected or the arrangement breaks: all penalties apply retrospectively as if no arrangement existed.
• TTP interest is not deductible.
• Net cost if TTP approved and held: approximately £930 (non-deductible).

In terms of headline cash cost, a commercial VAT loan at a market rate compares favourably with the late-payment route once the penalty exposure is included. TTP, if approved and maintained, carries a similar interest cost to a commercial loan, with no lender due diligence required, but at the cost of a penalty cliff if the arrangement breaks and the non-deductibility of the interest. The right choice depends on the practice's credit standing and on whether HMRC is likely to agree TTP.

Worked example B: a Capital Goods Scheme adjustment on a large refurbishment

A mixed dental and cosmetic practice completes a surgery extension costing £320,000 (VAT-exclusive), paying £64,000 in VAT. At the time of the refurbishment the practice's taxable fraction (cosmetic supply as a proportion of total turnover) is 35%, so it reclaims 35% of £64,000, which is £22,400, in the first VAT period. The remaining 65% (£41,600) is irrecoverable as it relates to the exempt dental side.

In year 3 of the CGS adjustment period, cosmetic turnover falls and the taxable fraction drops to 20%. The CGS adjustment for year 3 requires a partial repayment to HMRC: (35% minus 20%) x £64,000 / 10 intervals = 15% x £6,400 = £960 to be paid on the year-3 annual VAT return.

In this example the adjustment is modest. Where the taxable fraction moves more sharply, or the refurbishment is substantially larger (a £2 million building project with £400,000 of input VAT), the annual CGS adjustment can run to tens of thousands of pounds. Critically, the practice will know the size of the adjustment once it completes its annual partial-exemption calculation, giving enough lead time to arrange a short-term facility well before the return due date.

What a VAT loan actually is

A VAT loan is a short-term, purpose-specific borrowing drawn to fund a quarterly VAT payment or a one-off CGS adjustment, then repaid from the practice's normal trading income over a term of typically three to twelve months. The lender may pay HMRC directly or advance the funds to the practice. The product is distinct from a general working-capital overdraft or revolving credit facility: see the working-capital page for an explanation of those products and when each fits.

The operational advantage of a VAT loan over using the general overdraft for the same purpose is discipline: the VAT loan is self-liquidating on a defined timetable (three months for a quarterly bill, matched to the repayment cycle), it does not permanently consume overdraft headroom, and the practice sees its VAT cost as a specific line item rather than a generalised overdraft balance that grows and shrinks unpredictably. If the practice already carries a high overdraft utilisation, a separate VAT facility avoids compounding that position and keeps the overdraft available for day-to-day working-capital needs.

UK lenders offering VAT loan products (a transactional category verified in the market, 2026-07-09) typically provide facilities from £5,000 to £500,000, with decisions in hours rather than days, and repayment terms up to twelve months. No dental-specific lender recommendation is made here: the choice of lender, rate and term is a decision for the practice and its accountant or finance broker.

Tax deductibility of VAT loan interest

The interest on a commercial VAT loan is deductible as a trading expense, provided the borrowing is wholly and exclusively for the purposes of the trade. For an unincorporated dental principal this means deductibility under the trading-expense rules (ITTOIA 2005, BIM45650 and following). For a dental company it means deductibility under the loan-relationship rules in CTA 2009 Part 5: the interest is a loan-relationship debit and reduces the company's taxable profit.

The Corporate Interest Restriction under TIOPA 2010 Part 10 only bites above a £2,000,000 group interest de minimis. A single dental company borrowing to fund a quarterly VAT bill is nowhere near that threshold and is not affected. The restriction is mentioned here only so that a principal who has read about it does not need to investigate further.

Principal repayments on a VAT loan are not deductible: capital repayments reduce a liability on the balance sheet but have no tax effect.

By contrast, HMRC late-payment interest and HMRC late-payment penalties on VAT are not deductible for either income tax or corporation tax. This is the direct asymmetry between the two options: the commercial loan costs less in real terms than the penalty figure implies, because the interest carries a tax offset; the HMRC charges carry none.

HMRC Time to Pay in practice: how it actually works for a VAT bill

HMRC's Business Payment Support Service (BPSS) can agree a Time to Pay arrangement allowing the practice to pay an overdue or imminent VAT bill in instalments. The practical mechanics for a VAT-registered dental practice are as follows.

The practice should contact BPSS before the bill becomes overdue if possible, or immediately on becoming aware it cannot pay in full. HMRC requires the practice to explain its cash-flow position, why it cannot pay in full on the due date, what it can pay and when, and what reasonable prospects exist for restoring normal payment. A practice that can point to a specific, recoverable event (a large CGS adjustment on a quarter when cosmetic bookings were thin) is better placed than one with a structural liquidity problem.

If HMRC agrees a TTP arrangement:

• The instalment schedule is set by agreement. Terms of three to six months are common for VAT bills; longer terms may be agreed for larger liabilities.
• Late-payment interest continues to accrue from day one at the current rate (7.75% per annum from 9 January 2026), regardless of whether TTP is in place. The interest does not stop because an arrangement is agreed.
• While TTP is maintained, HMRC may apply lower or no late-payment penalties. In practice, HMRC routinely suspends the first and second penalty charges while an agreed arrangement is being honoured.
• The arrangement covers the VAT principal and any interest and penalties already accrued at the time of agreement.

The critical risk is what happens if the arrangement breaks. If the practice misses an instalment or fails to keep up with its current VAT returns while TTP is in place, HMRC will treat the arrangement as having lapsed and charge all first and second late-payment penalties as if the TTP had never existed. The penalty cliff falls from the original due date, not from the date the arrangement broke, which can create a large retrospective penalty charge for a practice whose cosmetic income is volatile quarter to quarter.

TTP is discretionary and is not guaranteed. A practice with a prior TTP that was not fully honoured, or one that already has an HMRC compliance issue (a late return, an error notice, a currently disputed assessment), is less likely to be offered a further arrangement. HMRC will also check that the practice is compliant with its current VAT return obligations before agreeing TTP on a prior balance.

The net comparison with a commercial VAT loan is that TTP avoids a lender credit assessment but carries the penalty-cliff risk if it breaks, and the interest is non-deductible. A commercial loan imposes a credit assessment and carries a market interest rate, but the rate is fixed, the term is certain, and the interest is deductible. For a practice with a strong cash-flow track record and good banking relationships, the commercial route may cost less in total; for a practice under genuine temporary pressure that cannot borrow commercially, TTP may be the only viable option.

The partial-exemption context: how the net VAT payable is calculated

VAT-registered dental practices that provide both exempt dental treatment and standard-rated cosmetic or aesthetics services are partially exempt. They cannot recover all input VAT on their costs: only the fraction attributable to taxable (cosmetic) supplies is recoverable.

Under the standard method (VAT Regulations 1995 regulations 99 to 110), the recoverable fraction is: taxable turnover divided by total turnover (both taxable and exempt), rounded up to the next whole percentage. Applied to every cost that cannot be directly attributed to one type of supply (staff, premises, laboratory, utilities), this typically produces a recoverable fraction in the range of 20% to 40% for a mixed practice, depending on the split of cosmetic to dental income.

The practical implication for VAT loan sizing is that the quarterly VAT payment is not the gross output VAT on cosmetic invoices. It is output VAT on cosmetic invoices, less the recoverable input VAT fraction on shared costs. For a practice with £50,000 in quarterly cosmetic sales (output VAT £10,000) and £30,000 in quarterly shared costs with a 30% recoverable fraction (input VAT recovery £1,800), the net quarterly payment is approximately £8,200. That is the amount a VAT loan needs to cover. Precise calculation requires the quarterly partial-exemption working, which the practice's accountant or bookkeeper should produce alongside each return.

For a discussion of whether a practice should consider voluntary registration (ahead of crossing the compulsory threshold) and the full input-VAT recovery mechanics, see the VAT registration page.

Where this page sits within the broader finance picture

This page addresses one specific cash-flow event: the quarterly VAT payment deadline for a VAT-registered dental practice, and the decision of how to fund it. It does not cover:

• General working-capital facilities (overdraft, revolving credit, short-term loan) for day-to-day cash management: see the working-capital page.
• Broader cash-flow planning and tax reserving, including reserving for income tax, corporation tax and NHS clawback: see the cash-flow management page.
• The VAT status of facial aesthetics and the principal-purpose test for cosmetic dentistry: see the facial aesthetics VAT page.
• The Capital Goods Scheme adjustment mechanics and how the ten-interval adjustment is calculated: see the capital goods scheme page.
• VAT registration, partial exemption de minimis, and the threshold mechanics: see the VAT registration page.

The financial decisions covered on this page (whether to borrow commercially or seek TTP, and the tax treatment of each) should be taken with advice from an accountant who understands dental-practice VAT. If your practice has not previously had to manage a quarterly VAT liability, the interaction between partial exemption, the CGS, and the late-payment penalty regime is not intuitive, and the cost of getting it wrong can run to thousands of pounds on a single quarter.