Invisalign Cost UK 2026: Full Price Guide Including NHS Options

Invisalign in the UK costs £1,500–£5,500 depending on case complexity. Invisalign is not available on the NHS for adults. Under-18s may qualify for NHS orthodontics (traditional braces or aligners) if they meet clinical eligibility criteria. This guide breaks down every price point — Lite, Moderate, Full and Comprehensive — and explains when NHS treatment is available.

Is Invisalign available on the NHS?

For adults: No. NHS orthodontics in England is restricted to patients under 18 who meet clinical eligibility criteria (IOTN score of 3.6 or higher on the Index of Orthodontic Treatment Need). Adults who missed NHS orthodontics, or whose alignment has relapsed, pay privately — Invisalign or traditional fixed braces.

For under-18s: Possibly. Eligible teenagers can receive NHS orthodontic treatment free of charge. The NHS typically provides fixed braces rather than Invisalign, though some NHS orthodontists are Invisalign-certified. In most cases, NHS teen patients receive traditional metal braces; Invisalign Teen is a private upgrade even for NHS-eligible patients.

Invisalign prices by product tier

Invisalign Lite — £1,500–£2,800

Up to 14 aligners (approximately 7 months of treatment). Designed for minor crowding, spacing or relapse after previous orthodontic treatment. Not suitable for significant overbite, underbite, or complex cases. The most affordable entry point for adult aligner treatment.

Invisalign Moderate — £2,500–£3,800

Up to 26 aligners (approximately 13 months). Covers moderate crowding and spacing, and mild bite issues. Suitable for the majority of adult patients who simply want straighter front teeth.

Invisalign Full — £3,000–£4,500

Unlimited aligners over up to 18 months. Full-arch treatment covering crowding, spacing and moderate bite correction. The most commonly prescribed Invisalign product for adult patients.

Invisalign Comprehensive — £4,000–£5,500

Unlimited aligners with no time limit. Required for complex cases: significant overbite/underbite, severe crowding, or cases requiring tooth extractions before or during treatment. Some practices charge above £5,500 for the most complex cases in central London.

Invisalign Teen — £2,500–£4,500

Designed for teenagers. Includes "compliance indicators" (blue dots on aligners that fade with wear) and eruption tabs for growing teeth. Prices similar to adult Invisalign Full.

What is included in the price?

A quoted Invisalign price should include:

• Initial consultation and treatment planning (including iTero digital scan)
• ClinCheck 3D treatment simulation for patient approval
• All aligner trays for the agreed treatment arc
• Attachments (small tooth-coloured bumps that help aligners grip)
• Monitoring appointments every 6–8 weeks
• Refinements (additional aligner sets to fine-tune the result)
• Retainers at the end of treatment (check — some practices charge separately)

Watch for practices that quote only the aligner cost without refinements or retainers. Ask explicitly: "Is this all-inclusive?"

Invisalign vs fixed braces cost comparison

Ways to reduce Invisalign costs

1. Get 3 quotes — Invisalign prices vary by £500–£1,000 between practices for the same case complexity.
2. Choose Lite if your case qualifies — many mild crowding cases are over-prescribed for Full when Lite achieves the same result.
3. 0% finance — most Invisalign practices offer 12–24 month interest-free finance. Spread a £3,500 treatment over 24 months = £146/month.
4. Dental school — some UK dental schools offer supervised Invisalign at reduced fees.
5. Discount codes and promotions — Invisalign runs seasonal promotions through registered providers. Check the Invisalign website's "Find a Doctor" tool for current promotions.
6. NHS for under-18s — if your child qualifies (IOTN ≥ 3.6), NHS orthodontics is free. Traditional braces are far cheaper than private Invisalign Teen.

Frequently asked questions

Is Invisalign available on the NHS?

No, not for adults. Under-18s may qualify for free NHS orthodontics if their teeth meet clinical eligibility criteria (IOTN score 3.6+), but they typically receive traditional fixed braces rather than Invisalign.

How much does Invisalign cost per month in the UK?

On a typical 0% finance arrangement, Invisalign Lite costs £60–£100/month, Invisalign Full £120–£160/month, and Invisalign Comprehensive £160–£200/month over 24 months. Check the total treatment cost and finance terms carefully — some practices charge arrangement fees.

How long does Invisalign take?

Invisalign Lite: approximately 6–7 months. Invisalign Moderate: 12–13 months. Invisalign Full: 12–18 months. Invisalign Comprehensive: 18–30 months. Compliance is critical — aligners must be worn 20–22 hours per day.

Is Invisalign better than braces?

Invisalign is preferred for aesthetics (nearly invisible), comfort (no metal wires) and convenience (removable for eating and brushing). Fixed braces are more effective for complex rotations and significant bite correction. The "better" option depends on your case — your orthodontist or Invisalign-certified dentist can advise based on your specific alignment needs.

Does Invisalign hurt?

A new aligner set may cause mild pressure for the first 1–2 days. This is a sign the aligners are working. Over-the-counter pain relief (paracetamol or ibuprofen) manages any discomfort. Most patients find Invisalign less painful than fixed braces overall.

What happens after Invisalign?

Retainers are mandatory after Invisalign to hold the result. Most patients wear clear retainers every night indefinitely. Without retainers, teeth will gradually drift back toward their original position — this is true of all orthodontic treatment, not just Invisalign.

Can I get Invisalign on finance?

Yes — most Invisalign providers offer 0% interest finance over 12–24 months. Some offer longer terms at low APR. Under the Consumer Credit Act, you have protection on financed dental treatment as you do with any regulated credit agreement.